Well, hello, my friends. I am home from work. It is currently 6-11 and I am actually meeting someone at the Menard's parking lot in a few minutes, so I just want to pop on and say hey um, I am selling this bedding that was from my like old guest bedroom and the only thing that was ever used were these pillow shams and um, no one actually ever slept on them. They were just decorative and then I never ever even opened this up, um, which is the Duvet. So anyway, it's really old from Pottery Barn. It's called the McKenna-Paisley Duvet Cover. So yeah, but they don't have them anymore. But I listed it on Facebook Marketplace, so I am going to go sell that to somebody tonight, which is great, and um, two birds one stone tonight because I am going to go look at some lighting. I don't know if I said this on the vlog yet. I don't think I have, but I contacted an electrician friend and they are going to be coming sometime next month, sometime in November. I want to replace this light fixture right here as well as, um, this hallway light fixture right there. I've got the same light fixture upstairs right in front of the laundry room, so I want that replaced. And then up in the loft, there is a another light fixture that I want replaced as well. And then these lights right there, um, I just noticed that there's only one light that's actually working still. So I need to somehow replace that, but um, he's going to come over and assess everything and then figure out how the heck to get up there. So he'll tell me like what I need to rent, like if I just need some scaffold or like, I have no idea what I need. So, but um, he's been an electrician for a really long time, so he knows like what equipment and tools and stuff like that to use and need. So that'll be good. But um, yeah, but that's what I'm going to go do. I'm going to go buy a couple of light fixtures. I'm going to see what I can find. And then, um, I told my electrician that I would just send him a message when I have all the fixtures. And um, I think for this thing though, like that thing, um, I'm just going to wait until he gets here because I'm not really sure what to buy. I don't know. I don't know. But I will look around at some stuff and maybe take some pictures of my cell phone and um, you know, kind of show him what I'm thinking. I would really prefer if I had not these like little can lights, but I had just pendants because that would be something I could possibly, you know, change the light bulb myself because I can't change those light bulbs. And I know something you're going to say, oh get the like little plunger thing, because those are all on a like swivel, it doesn't work. Like it won't like suction, right? So I don't know. I just don't know. So that's kind of what's happening here. But today is a lighting day. So we're going to go to Menards and see what we can find and um, sell this, which will be great. So I'll have some cash in hand from the sale of this stuff and then I'm going to come home and then I'm going to have some dinner then because I just didn't have enough time. So I'm going to get in the car now and go sell my bedding. And if there's not a ton of people at Menards, I'll be able to kind of show you guys some of the lighting. And I'll definitely show you what I pick out because I'm thinking for this, that thing, it's on right now. So it's all blown out. I'm thinking for that. I kind of want like more of a lantern-y kind of a look. Um, but I don't know. I'm not, I'm not a hundred percent sure on what I want for that. So I'm just going to kind of let, let it speak to me. And then if I don't find anything there, I can run to some other, you know, lighting stores and stuff like that later. But my taste is pretty basic, but it's very like particular, which is weird. But I know I want oil, rub, bronze fixtures or like, like a black iron color. I know I want that for sure because I like that for all of the hardware in the house. And then I like to kind of mix my metals too. So I don't mind if there's a little gold or a little silver somewhere, but like my drapery rods are the bronze and all the knobs on the doors are all bronze. So they're kind of that blackish brown color. So I kind of want to like stick with that theme because there's so much white and so much cream that kind of breaks it up a little bit. But anyway, all right, I got a jet. I will see you guys in just a moment. Okay, so I'm in my arms and I picked out some lights for that track. So yep, I'm going to get three of those, but that's in the same room as that like chandelier situation. And I think I'm going to get this one right here. I kind of liked this like cage looking thing. But since I have this one that already has that cage, it kind of looks funny. So I really like that as well. But I'm still debating. I'll let you know when I get home. All right, so just got back home. And I wanted to show you guys what I settled on, which is basically everything that I showed you. But I'm gonna show you a little bit better. So this light fixture, Doyle's very excited about it. All right, so this is all from Menards, Hermanards.com. It's all Patriot lighting, I think. But this is chandelier, which has the basically the same light bulbs that I currently have in my other chandelier over there. It's got this like kind of twine thing going on with the oil rub bronze. This I think is gonna look really, really nice above my dining room dining room table, I should say. Hi Doyle. And then I got these pendants, whoops, which are the Liam pendants. And I won't be putting those like Edison bulbs in there. I did ask the sales associate if I had to put those in there. And she said, Nope, you don't have to put them in there. So I'm thinking that will go in the track light or in that track. And then the other two I got this one and this one, Doyle's very interested. So those are the same as my entryway light. I'm not gonna show you my entryway light because it's crazy. But I'm gonna replace that, which is gonna be the same light as that, which is a lot. But I just want to, you know, do it. And then this, to be honest, only has one light bulb that's currently on the other two have burnt out. And then the other light is, you can't really see it, but it's in that hallway right there. And then this light, I'm still debating about, I need to replace it. Let me zoom you guys in so you can like see it a little bit better. But only one of those lights is currently still working. And I don't like it at all. So I need to replace it. I was kind of debating between a couple of them there. But I think tomorrow or the next day, someday this week, I'm going to run to a different hardware store and look at some other lights.  I don't really want a flush mount. I want something a little bit more interesting because kind of when you're in the room, you're still going to see that light fixture right there. So I'd like it to be a little bit decorative, but I don't know. I haven't fully decided. When I was talking about before that I really liked those kind of like cage and lantern-y kind of a look, I think I still achieved that. I did like one of the lanterns that they had for the over the dining room table. But I felt like with the stuff that I picked out for the track light that it would just be too like trying to be too matchy-matchy. And I don't want that. Like I just want it to be kind of cohesive. But then also like I just wanted to have the same vibe. And I'm fully aware that the just like plain LED lights that are like in my entry way are super basic and boring. But at least they're not that. To me that's just a little too outdated. And I figured if I have an electrician coming over I might as well just like get it done right guys. So that is the plan. Like I said sometime this upcoming month I will do that. And I'll end up showing you guys like on the internet or maybe I'll do a video about it or something. But I'll show you. I'll show you what's up. So anyway that is the fun plan. And if I have time tomorrow, which I don't think I have anything going on, but I might. I'm not 100% positive yet. But if I don't have anything going on tomorrow, there is a lows on like close to my work or whatever. So I think I may stop over there and figure that out. And just either confirm that I'm making the right decision with what I originally wanted up there or just kind of see what they have. But I'm really excited about changing up the lighting in here. And I think it's going to make a huge difference with the kind of bulbs I'm going to use and all of that. So I'm really excited. So that's it for me for the moment. Doyle is down there doing Doyle things. Just judging the world away. I think I'm going to get into my jams and make a little dinner because it is 7.32 now. So yeah, that was fun. I just spent multiple hundreds of dollars on lighting in like 20 minutes. But that was good. It was good. All right. Well, I will see you guys in just a little bit. Oh, well, hello, my friends. I had some dinner, which was good. And then I treated myself to a little hot chocolate before bed. And Doyle and I, he's ready to go right here. We're going to go outside and get him taken care of. And I have a very nice pimple. I kind of was catching the light in Menards. And I'm like, hmm, what's on my face? You know, you gotta love hormones, right guys? So I'm going to wash my face. And I'm going to do that Mario Badesco. I don't know how to say his name. But it's like that drying lotion. And that usually works pretty good. So either it like just completely brings it to the surface and like, you know, taken care of, or it kind of like dissipates. So I need to do that tonight. But it is kind of early, but I think this is good. I need to go to bed earlier. Like, it's a goal in life. But it is 9 21 currently. So Doyle and I are going to go take care of his business and get his meds in him. I'm going to take my meds and then wash my face, do my nighttime routine and go to bed because your girl's tired today. Well, I'm tired every day, but that's a whole nother issue. But I'm really excited about my new lighting. I am very, very pumped to actually like get it installed. But like I said, that's going to be happening next month. But yeah, and it's going to be like a progression. I don't think I'm going to get everything done in a day. Because we need to figure out how to actually get up there because my ceilings are epically high and it's not like a normal situation to get up there. So I don't know. I don't know guys. I don't know. But I know it'll happen. It'll happen. It'll be good. So I'm in a jet. Thank you guys so much for hanging out with me today. Tomorrow is the last day of vlogtober, which is just insanity to me. But yeah, I hope you guys are enjoying the series or if you haven't watched the whole series, the link is always below to all the other vlogtubers and the vlogtober of last year too. So it's all in the same playlist. But anyway, I'm going to jet. Thank you guys so much for hanging out and I'll see you all tomorrow. Bye guys. Well folks, it's time to kick it off school so you can feel cool.


So we had the Lenovo booth, so who are you hi? I'm Jonathan Hinkle with Lenovo I'm in a server system architecture group and enterprise so we had the open server summit So what do you do here at the open server summit? Okay? Well, I'm the conference chairman actually and we have a really great show We've basically grown many many years now Significantly, and we're basically focused on servers. We've been talking about a lot of today We've been talking about software to find storage software to find networking software to find compute and how you make sense of all that innovation In the data center really to produce real results for customers. So open server. Does that mean Linux? So it can so it's a lot of it is going to be open source open source software along with Other operating systems, though I think it's a diverse ecosystem of software, but a lot of open source and then also open standards for hardware a lot of excellent innovation based on a foundation of Existing hardware that gives you the lowest price, but then you can build upon for innovation So you work at Lenovo, right and the novel is pretty big at doing server stuff. Yes. So what is this? So this is our pure flex. It's our converged platform It's a very exciting integration of computing networking and storage we have Significant amount of compute that you can obviously have different nodes here that you can plug in. We have drives. We have Basically a variety of different interchangeable pieces so you can configure your system. However, you like that Applies best to your application So what do you do at Lenovo? So I'm a system architecture Basically, we've just gone through some transition. We just acquired system X from IBM We've been about a month now with this acquisition. So now we have a very full portfolio. We have system X Servers from high-end. This is our first platform. It says IBM right here. So this is the part of what you acquired. That's right. Exactly So the Nova is number one for laptops. Are you number one for servers now or well? That's that's part of the In you know, some of our targets basically we have number one in PCs. We have mobile. We have tablet So we're growing all spaces and now an enterprise. We're very serious contender shooting towards number one Definitely already in the top top three top four in the world. What's the what though? What are those over there? This is our high-end server Basically, it's our very high-end system with lots of memory This is a very interesting design with the screen books that you can pull out with computational basically memory and compute and then we also have a variety of Storage options. This is really great for database and for virtualization All right, really high-end workloads. We also have two you boxes This is the M5 3650 M5 Another great choice for more of a high volume. You can scale this out in the rack. All these are rack based servers And then we have Some of our think servers some of this some of our Lenovo brand We just launched for grantly servers on the think server brand and we have to you here in a one-year server So we basically have a very full portfolio now. So who buys these servers? So is it like the giant cloud computing companies or is it more like enterprise? Is it like smaller enterprises or a huge ones everyone so so yeah, so so cloud We have definitely products that are applicable both the cloud and the traditional it with their system out export Folio we have pretty much a lot of the different needs most of the needs I would say even for the market for our customer for traditional it as well as in the cloud We have also dense servers, which is HPC the high-performance computing and then we also have China cloud we have the OCP effort that we're engaging with so I think we have a lot of different aspects of Both cloud and for traditional it we have a lot of interesting products and continue to grow So who the attendees for this conference right here like this is an open server summit It's in the Silicon Valley. All everybody here works here or in Silicon Valley or what probably a significant portion Certainly, there's a lot of technologists a lot of technology in the Silicon Valley always has for many many years obviously many decades So this is a great place to have this show certainly for a server show You know we have a variety of different sites and a lot of different places that the technology comes in We're sort of an essentialized place to come and talk about the technology I have a lot of great from cloud and from end user IT folks to the folks that make the hardware like us make the technology and a lot of different Architectures and platforms and a lot of things are happening right in the server space and the micro servers and All that stuff, right? That's right Yeah, there's there's a lot of changes going on in the IT industry a lot of changes going on in the server industry and That's actually one of the things that Lenovo is going to be excellent at is making sense of all that delivering hardware and products and solutions that are very well optimized both from a cost perspective and basically leveraging some of our excellence in operation efficiency as well as innovation


And as I look out there would be no sense in trying to single out all of the important people here tonight because you are all important. So let me say friends of Marines, former members of our Corps, retired members of our Corps, and probably of most importance, those active Marines and their families who will be carrying on in the days, the weeks, the months, and the years to come. Mr. President, I have thought long and hard on the words that I would use tonight and I must confess to you, sir, that as my hands touched the battle-color of our Corps, all of those words disappeared in an emotion. I thought that there have been less than four million Americans since the birth of our nation who have been privileged to be called Marine. And of that number, close to a quarter million have in one way or another shed their blood for their country. It's a great country you lead, Mr. President, when you think the son of an immigrant can stand here tonight as the commandant of the United States Marine Corps. The hands of a man for whom I have profound respect, the hands of a superb leader, the hands of a gentleman and a gentle man, the hands of a compassionate Marine, the hands of General Robert H. Barrow, our 27th commandant, my friend. It's my privilege tonight to represent all Marines past, present, and future, and it is a distinct privilege to be the one to say to General and Mrs. Barrow, on behalf of a grateful Corps, a bond voyage but with so much love and affection for both of you that it will never die. In closing, I would like to mention my family. Let's don't overdo it. I may not want to leave. President Reagan, Mrs. Reagan, distinguished guests, ladies and gentlemen, and my fellow Marines. Mr. President, I thank you, sir, for honoring the Marine Corps this evening. On that, sir, I presume on behalf of the many men and women of the Army, Navy, Air Force, and Marine Corps, to thank you for your warm, sincere interest in them, support of them. It's manifested in so many ways. I guess I could sum it up by saying you make us feel good about ourselves. There are too many to thank, acknowledge, recognize, all plays. Thank you, gentlemen, ladies. I want to thank the members of the Joint Chiefs of Staff, who are yet tonight representing themselves as Chief of Surveys. She's just as pretty on the inside as she is on the outside, and I'm worried about my successor. Paul Kelly is no ordinary man. He has a certain touch, and he will bring it to the Corps. His dynamic leadership, I predict, will bring the Corps the new heights of achievement and credibility. I'm proud for you, Paul, and pleased for you, and most especially for the Corps and country. God bless you, sir. I wish to be at farewell, gave me the right words. When I asked him after he had experienced the rigors and testing and challenge of that difficult training down there, what did you get out of it, son? What did all this give you? And he said, discipline, sir. And I came back and said, what does that mean to you? And then he described the Corps in his answer. Speaking in the third person that they do, he said, sir, the private will always do whatever needs to be done. You think about that. I will always do whatever needs to be done. That anonymous private in Parris Island, South Carolina, spoke not only for himself, but for the Marine Corps and for all the Marines past, present, and future. And so I go to the sidelines of retirement, proudly confident, generals, colonels, the distinguished guests who are here tonight, and the members of my own band. We are present tonight at one of the most solemn and important ceremonies in the life of a military service that began in 1775. Today or tonight, we have passed the colors, we mark a change in command of an institution that is older than even our nation itself, the United States Marine Corps. It's altogether appropriate that we should do so in this place. We stand today on the parade deck of one of the oldest military installations in America, the Marine Barracks, selected in 1801 by President Jefferson himself. And we stand in front of Washington's oldest, continuously occupied public buildings, the home of the Commandance and the battle colors of the Corps. This place marks the home base of one of the world's most modern and powerful striking forces, a Corps of Honor and Legend, a Corps of selfless Americans whose valiant service has for more than two centuries thrilled their countrymen and kept their nation free. Because of their valor, far away places whose names were once strange and unfamiliar to Americans are now part of our nation's history. Places like Tripoli, Shadoteri, Iwo Jima, Inchan, and Keisan, names that speak of soldierly virtue, names that evoke the spirit and memory of all those United States Marines who have given and still give today so valiantly of themselves so that their countrymen might live in peace and freedom. Today, we mark the retirement of a man who exemplifies the best of these traditions, the 27th Commandant of the Marine Corps, General Robert Barrow. General Barrow's valor is testified to by his decorations, by his leadership of fighting Marines in three of his country's wars. In World War II, he served behind the Japanese lines with the Chinese guerrillas, the campaign where the cry Gung Ho was heard. And in Korea, he fought at Chosin Reservoir. In Vietnam, he played a critical role in the success of Operation Dewey Canyon. Just after the breakout at Inchan in Korea, the then captain Barrow was at the head of a rifle company faced with a powerful enemy armored attack. He spoke for so much of Marine history when he later said of the Marines that he led that day and the victory they won, they stood cool and tall and let them have it. In peacetime, General Barrow has served his nation with equal distinction. Because of his leadership, the elite force that is always first to fight has never been better prepared to carry out its mission. Its weapons and tactics are modern. Its morale is high. Its men and women are dedicated to the standards of excellence that are synonymous with the title of United States Marine. General Barrow, you leave a legacy that is reflected in the eyes of the Marines here today and in the unexcelled performance of the fleet Marine forces both afloat and ashore in far off lands. Under your stewardship as the 27th Commandant, the Marines have never been better prepared or better led. I want to say I will miss you. I will miss your counsel and your decisiveness. As you return home, General Barrow, I give you, sir, on behalf of a grateful nation. But another distinguished soldier on a more somber occasion gave his name to the party comrades, many of whom would also return to Louisiana. Take with you the satisfaction that proceeds from the consciousness of duty faithfully performed. And I pray, as did General Lee on that occasion, that a merciful God will extend to you and Mrs. Barrow his blessing and protection. Ladies and gentlemen, I am delighted to add here, however, that we won't be losing his service altogether because General Barrow will soon be serving his country again in a key advisory position. General Kelly, I have the utmost confidence in you. Few public careers have shown as much selflessness and commitment to country as yours. In combatant in peacetime, you've been a dynamic and innovative leader of Marines. You've had successful tours of duty and worked closely with all of our military services. You've won the respect and admiration of military and civilian leaders throughout the world. Marines have always been asked to accomplish the most formidable tasks, as they are this evening, serving in the difficult and dangerous task of peacekeepers in the multinational force in Lebanon. I expect, General Kelly, that under your leadership, that performance will exceed expectations and that you will hold the standards of excellence that are the hallmark of the core and the pride of the American people. At this ceremony tonight, viewing the Marines that are here with us, all of us in civilian life feel a surge of that pride. On a personal note, I want to say that I came here early in my term as president and saw the evening parade held during the summer months at these barracks. Some call it the best show in town. I can only tell you that I consider it one of the most unforgettable moments of my term in office. Yet it is an experience I share with the countless Americans who have come here over the years and seen the drill and the pageantry and the pride of the Corps. And I hope the Marine Corps will forgive me when I say that it is sight of these everyday Americans from small towns and big cities that is as inspiring as the Marines on parade, for it is they who thrilled beyond description stand here and cheer. They cheer because they're grateful for the chance to show the world how America feels about her Marines. And so to the new commandant, General Kelly, I issued the first orders from your commander-in-chief. On behalf of all Americans, I want a message sent to every member of the Corps to every place where the word Semper Fidelis is a way of life. General, tell it to the Marines, whether in ceremonial white or leatherneck blue, whether in dress greens or combat camouflage, whether they serve in the air, on land, or at sea. Tell them that their countrymen are grateful. Tell them that we stand behind them. Tell them that we're proud of our proudest. God bless you both. God bless you all.


First of all, I want to introduce myself. My name is Welly. Apologies for the weird setup, because we cannot move this thing today. So I just have to deal with it for now. My name is Welly Xiao. I'm a principal partner solution architect here at AWS. I will be your moderator today. I heard that this is our first KubeCon multi-tenancy conference. So this is also will be our first panel session today. The title of today is the Unlocking the Power of Multi-Tenancy. We're going to hear perspective from some of the platform leaders. So with that, I'm going to introduce our panel today. First of all, Mohan, Mohan Atreya. He's the senior VP of product and solutions at RAFI Systems. Mohan, apparently also the author of the books around digital signatures. Mohan, I did not know about that. So that's a new secret that I learned about you. He has extensive experience in Kubernetes, IEM, endpoints, and more. So Mohan, welcome. Thanks for being here. And then next, we have Prasidia Satya, principal essay on the AWS as well. My colleague in here, she's based off Bay Area, right? She has been focusing on helping a lot of customers in their cloud native journey into AWS, of course. Experts in Kubernetes, EKS, Fargate, ECS, and so much more. And last but not least, Ritesh Patel, the VP of product of Nirmata, and also the co-founder at Nirmata. If you haven't heard about Nirmata, it's the creator of the open source Kubernetes native policy called Kifrna. And there's a couple of news announcements about Kifrna today, so I was really excited about this. Ritesh has more than 20 years experience delivering enterprise software and solutions. All right, so with that, that's the panel for today. I'm going to go ahead and start the discussions in here. I'm going to get my notes. Mohan, I think this first question will be for you. Of course, today is the first multi-tenancy con. And there's so much dimension that I hear so far from the talk about the multi-tenancy. Can you try to maybe help us kind of explain this? When you talk with the customers, how do you typically explain about multi-tenancies and what are the trends that you're hearing from the customers? Sure, absolutely. First of all, thank you for... This is a privilege. Thank you for allowing me here. So the question that Veli asked is an interesting one. We saw some sessions earlier today, where especially the New York Times team, they showed how the journey, right? You have an option one, which results in these pros and these cons. You have option two, then you have pros and cons. And unfortunately, that's going to be the nature of any decision you make. There's going to be some positives, and it'll drag you down in other ways. And some of these, you can compensate through other mechanisms to solve the problem. But in general, what we see customers attempt to do, they don't just start with Kubernetes, right? For them, the problem is a lot bigger. When I were at Talk to Customers, they start sometimes with the concept of your own landing zones, right? Especially the bigger ones, they say, look, I'm going to have to create an environment for my application team. So maybe they start with landing zones. And if you are on AWS or Azure or any other cloud, for that matter, you need these ways by which you can compartmentalize things. So multi-tenancy starts right there for them, right? And then goes even further. If I have, do I create multiple VPCs or not? Do I put everything in one? Do I have a flat network or not? And then things go even further and say, if I have like a managed hosted database, do I have a shared database or not? And only then Kubernetes comes into the picture. So as you can see here, Kubernetes and multi-tenancy is nothing strange here, right? The problems we're seeing with multi-tenancy in Kubernetes, they exist in everything else. So the general philosophy that organizations align with is, hey, I don't want something new and different, if possible, because then it's yet another thing that someone has to learn, yet another thing that is different from everything else. They try and align across all these patterns they have. So the method that works for non-Cubernetes, how far can I take it into Kubernetes? And at some point, of course, it'll stop, right? For example, there's no concept of a namespace in some of the other resources, right? So that's kind of what we see from customers. They want ideally to deal with a known devil than an unknown angel, right? That's easier for people to grok. Most organizations here, I'd be surprised if you're 100% only cloud native. You probably have a mixed environment, right? Some people have hybrid, some people might be multi-cloud, some straddling the world between VMs, maybe even mainframes, then serverless and cloud native. So all of these mixed environments. So how are you gonna make sense of all this? So now, having said that, when you talk about Kubernetes, since we're at KubeCon, we'll talk about Kubernetes, right? All of us heard about the standard patterns, namespace as a service, cluster as a service. An interesting pattern we see from organizations is, can I be in between those two, right? I want the isolation that's possible with the namespace as a service, but I don't want to be in ticketing nightmare day in and day out, right? So I'll give an example. We're dealing with a large, one of the world's largest commercial real estate company. They use Kubernetes extensively and they have an onerous ticketing process that they cannot get rid of. See, if I'm a developer and let's say I want a namespace with a certain quota and let's say I made a mistake, right? I had to wait two more weeks for that ticket to be processed and go from extra sources to wider sources, right? So they want to get out of this ticketing business. So they have kind of found a spot in between namespace as a service and cluster as a service without the security compromise. So these are interesting patterns we're seeing where people are trying to find ways to avoid this ticketing nightmare, form filling, the constant changes because no platform team wants to deal with this day in and day out, right? You want as much automation as possible. So these are patterns we see. Another pattern we're seeing every now and then is if I give a tenant, what are all the doors I can close right away? I think a New York Times team talked about one or two of them, like namespace isolation using Sillium as an example. We see that pattern quite a bit where they say can I have a network policy on by default, right? And then I'll start opening rather than having a model where everything is open by default and then I start locking. They go the other way, which is everything is shut by default and then I open based on exceptions. So there's no one size fits all in a nutshell, but in general, there are time-tested patterns that we are publishing, that the industry is documenting. My recommendation is pick one of them, build on that, extend on it, contribute if you can, and it just gets better with more contributions. Hope that helped. Thanks so much Mohan. I think I also picking up the story about like this is not only about Kubernetes. I think a lot of it is in Kubernetes, but then some of those workloads are still need a database and other services outside of the Kubernetes itself. So maybe this is a question for you, Presidia. Like you've been working with a lot of customers in AWS of course. Are there any best practice or architectural considerations when they're thinking about multi-tenancy in Kubernetes in AWS? Sure. So thanks Veli for the introduction initially and thanks everyone for attending this. Yeah, definitely, you know like the best practices what we see from customer is exactly what Mohan said, one size doesn't fit all. So the architectural guidance and patterns around this also changes accordingly to the use cases, right? So we have seen like at AWS, I work with the enterprise customers, strategic customers, and I've seen that they start from the higher level like the business unit level. And at that time for them, the multi-tenancies account. So they create multiple accounts and they have the IM for the privilege access for the resources at that level, right? So that's one way. And that also helps to limit the blast radius and plus the account limit issue what we have. It also helps them in costing analysis because it's a different account, right? And then you go down the path like Mohan said, there are some platform teams within this strategic customers who wants to use a best practice like namespace as a service, right? And then they use all the rest of the bells and whistles what we have for network policies, policy management, anything around IRSA. As you mentioned, you have to talk to the other AWS services. You definitely need to control those resources, right? So, and then we have also seen the usage of crossplane. That's another thing, right? Which is used actually to provision different AWS resources. So that's also into the practice. And then there are some customers who wants to go for node-based provisioning, right? They use the auto-scaling group. We also have Carpenter, which is a new auto-scaler, which also basically uses the node pool to provision according to, so that you can take your pods and put it in the nodes where you want, right? So that also gives you the isolation for all the pods in the node. And then some people want a multi-tenancy. And in that case, they go for cluster as a service, right? So each tenant gets one cluster. But then it adds to the cost. And then a maintenance is a nightmare sometimes. Upgrade is a challenge. So few of our customers who are worried about these challenges, they say that, okay, is there any other solution? We are okay with not having like this much of workload. So for that, we suggest them the serverless option, which is Fargate, right? So it's like, you don't need to maintain the servers over there. No clusters. It's just like a serverless container engine. So those are like different options we have from AWS, like where our customer uses for multi-tenancy. Awesome. Thanks so much, Rosita. It's kind of pointing out a lot of the available tools out there. And this may be a question to you, Ritesh. I keep hearing the challenges around data isolations throughout the talk today. And I think that's really important. There's many ways we can achieve this, but what are some of the techniques and maybe tools that you have seen work very well when you're talking with the customers? Thanks, Oli. So yeah, so one of the things about multi-tenancy, and if you go back and look at some of the history, right, multi-tenancy in Kubernetes, implementing it is fairly challenging and you cannot kind of do it without automation, right? In the past, there was always a trade-off between namespace as a service and clusters as a service. The one reason why somebody would use clusters as a service is because using a shared Kubernetes cluster with all of the multi-tenancy guardrails in place was really hard. So one of the things you saw, again, referring back to the New York Times presentation, they talked about policy-driven security. And we see that a lot, policy-driven security and automation. So as part of the Kivarno community, using Kivarno for multi-tenancy is one of the top use cases, right? Because Kivarno is a policy engine that not only can validate, but also mutate and generate resources and that can trigger a slew of automation to enable multi-tenancy in your clusters. So for example, you saw the New York teams write a controller, but a lot of that can be easily automated without having to write single line of code through Kivarno. So going back to the data isolation techniques you mentioned, obviously in Kubernetes, you have the control plane and you have the data plane and isolating control plane, the techniques that are used, which we already talked about, namespace as a service. There's a project, I believe. I'm not sure where it's at now, but there was hierarchical namespaces where you can have namespaces within namespaces. And then also there was a kind of, an in-between virtual clusters, like we clusters where you can actually have like cluster-wide resources segmented across teams. So that's on the control plane side, but now we start looking at the data plane and then you start getting into some of the network isolation, which we already talked about, so I won't get into that. But the data isolation is also very important, like with provisioning data dynamically, isolating tenants using different storage classes, making sure that one application cannot use or access data from other application. And then there is a physical node level isolation. If you have a cluster with a lot of different types of nodes, you want to isolate, say applications that use GPUs only on nodes that have GPUs, you don't want to incur that cost for other applications that can be done, right? So all of these are different techniques again. There's obviously challenges in implementing it and there are ways to overcome these challenges through some of these approaches, like policy-driven security and automation. Thanks so much for this, yeah. I think even in the data planes, like a role-level security database these days has become more and more common and it's making it super easy as well, right? To kind of look at it. I will have to say, certainly I see a lot of explosions in terms of the tools and technique when we talk about multi-tenancies. But since this is a multi-con, so this is our summits, I'd love to hear from all of the panels in here, like what do you see as the future in terms like a multi-tenancy? Is there any top of the mind, maybe Prasita, you have something in mind? Sure. I would like to share one project of what we have initiated from AWS called Kanu. This is not only from AWS, just from our like community partners like our customers like Salesforce, Adobe, I think Autodesk and Twilio. So it's called CNOE and it stands for Cloud Native Operational Excellence. So this project basically it takes, it kind of solves the decision making for the tooling of CNCF. So a lot of people must be using, you know like Argo CD, Crossplane, Backstage and everything. So this project basically brings everything together based on the best practices and the patterns, what our customers have worked on and bring it to you so that you can use it and we have the community support and it's driven across our customers as well as the community. So that's one thing I want to share as a future. Awesome. Mohan, do you have anything in mind in terms like future state? Sure. The pattern I see as with any other technology is things like this need to become invisible, right? They, it cannot be a very big, you make a decision and then it should just be a checkbox and you're done, right? And then how do you know whether the system is working for you or not? Because the pattern you choose may not be the best choice for you long term, right? So the other thing that I see common from people is they go down one path, they realize after six months it's not the right path, they had to come back, try another path that's better suited for them for the next two years, right? So we see people asking the question very frequently which is I need to choose something that has two doors. So we go down this path, the cost of moving to another pattern should not be hyperexpensive, right? And invasive on the company. So these are the patterns we're seeing that people are trying something and moving to other patterns that are maybe better suited for them long term. So, and the thing becomes invisible behind the scenes for them. Thanks so much. Preetas, do you have something in mind in terms like future state? Yeah, I think obviously, you know, from our perspective, for a lot of this to be successful it needs to be developer self-service, right?  I mean, I think that's probably ancient, right? From what the future is about, you know, doing things using things like GitOps, right? Model, using tools that developers are already used to not kind of introducing more tools but making sure the infrastructure is built in a way where it can do things automatically with the right set of, you know, guardrails and governance in place, right? That's what we see as the future. Thanks so much. I know, I saw the time clock get back. I think we are short on time in here. So I was wondering if there's any questions from the audience to the panel, perhaps? Maybe we have one or two minutes. If not, I actually have one more questions in that case, but let's see. Okay, maybe this is again for all of you, like in terms like recommendations for any new organizations that just about to get started with multi-tendencies. What would be your first maybe suggestion? Maybe we start with Mohan. Yeah, sure. Yeah, I would recommend Start Simple, right? If you are new, brand new to the journey with Kubernetes, Start Simple. We tell people it's okay for it to cost more money in the beginning because you can always move from one pattern to another as you learn more. Your team has to have intimate knowledge of the Kubernetes landscape or you're gonna shoot yourself in the foot. So if you're new, Start Simple, it might cost you a little more, you can optimize later, right? So that would be our recommendation. Thank you so much, Ritesh. Prasita, you have any thoughts? Yeah, I would say that security is important, so least privilege principle to be applied for all your multi-tendents and start from there, generally like deny policy, and then from there on like keep, open it up for the tenants. Awesome, Ritesh, any last comments? Yeah, and just to add to both of these, I agree with both. And just to add to that, there's definitely a lot of proven models out there. So just don't, you know, just, I think just by doing some research, you should be able to get ideas of how others have successfully, you know, gone through their journey and settled on a model. And you know, if you can avoid a lot of mistakes by, you know, following those patterns and paths. Thank you so much. I know we are running out of time, so thank you so much again for the panel in here. And also thanks for the audience. I hope that you all find this insightful. If you have any more questions, the panel will be around in here. Please give the applause to the panel here. Thank you so much. Thank you.


For today guys I bring you a new world video showcasing all known legendary fire staffs in the game. Now there I will mention a lot of these haven't been obtained yet as well as some of the images of these weapons are placeholder images but in terms of the weapons stats and what they offer it's all here so let's go. Has it gone guys my name is DPJ and if you enjoyed the video leaving a like really helps out and if you like what you see and want to see more be sure to subscribe. Ok so within this video I will be showcasing all known fire staffs in the game and how they are obtained. Now a couple of these haven't been found yet and there I am hoping you guys can help me out so if you know of any of the unknown drops within this video you know how they are obtained let me know and I will edit the video description but let's get into it. First up we have the spell staff of the theory intent. So this is a legendary that's an exclusive drop from the Lazarus Instrumentality expedition boss known as Chardis.  So this legendary is an exclusive drop to the garden of Genesis expedition boss known as the blighted greens keeper. Next up guys we have the fire vine battle staff. So this legendary drops from the major in game expeditions. Those are the garden of Genesis the depths the dynasty shipyard and the Lazarus Instrumentality all name bosses within these four expeditions I do believe have a chance of dropping this legendary. Next up guys we have the wildfire torch. So this legendary is an exclusive it seems to enemies within the level 60 plus required expeditions. So the Lazarus Instrumentality, the garden of Genesis, the depths and so forth. Next up guys we have the scorched earth. So this legendary is an exclusive drop to corrupted enemies which I believe is added into the loop or once you get upwards of a level 50. So once you get past that mark there's a chance this may drop from those corrupted enemies. Next up guys we have the meteor trail. So this is a legendary that needs to be crafted people. Required stages are now going to be tier 5 requires an arcane a level of a 200. Trade skill xp is 7,440 and territory standing is to be 144. Next up guys we have the rage. This is also a legendary that needs to be crafted. Stations are our committee of five arcane a level of 186 trade skill xp of 7,285 and territory standing of 141. Okay so the following three staffs are world trucks. So these can drop across the board to any named enemy and I believe I added into the loop pools between a level 40 and 50. We have the staff of the greater tribulation. We have the sirens legato. We have the signum Valerie I believe that's pronounced I'm probably wrong I normally am but that is it those are the three world drops across the board. Okay so unknown drops we have the quarterisation and the legions of fire and now if you know of any details of these two if you've had them drop and know where they could drop please let me know. I edit the video description so the world knows but there we have it guys all known legendary fire staffs in the game. If you guys enjoyed the video leaving a like really helps out if you're new around here want to see more be sure to subscribe and if you never want to miss a video upload you can turn notifications on by hitting that bell button but guys thanks as always for stopping by and hopefully I'll see you on that next one.


Lesins from Sudan. In the morning of 15 April 2023, the world woke up to the news of open armed conflict in the city of Katsu, capital of Sudan, between rival factions within the government of Sudan. The conflict is escalating and threatens to explode into a full-scale civil war. To be sure, Sudan is no stranger to war. It seems to have worked into conflict soon after its birth in 1956, when its then southern parts unhappy with lack of autonomy went to war. Many years after and at the price amongst other things of an estimated 2 million dead, sotans would Sudan eventually emerge as an independent state in 2011, and its own internal conflicts promptly began. Nigeria has a human stake in the happenings in Sudan. Many Nigerians go for their education sometimes sponsored by state governments. Beyond this, technically Sudan has always been a refuge for Nigerians. If section 25 of the condition in Subali Red, it must not be forgotten for one that the children and followers of the last sutan of Sokoto, before the conquest of the Sokoto Empire by the British, Mohammad Atiruwan, live there and call it home. In many respects, our pre and post-colonial histories are not dissimilar. They are lessons to be drawn from their experience, the first one. Many years after independence, the fact is still not recognized, that our nations were arbitrarily cobbled together by our colonizers, living ethnic fishers that require understanding and careful handling. There can be no sustainable development without peace, but sustainable peace will not be guaranteed by fear and the martial boots. There must be a continuous and sincere discussion and bargains for the best arrangement of power that will move our nations forward. Here there have been much discussion on restructuring, some sincere, some in contempt. But what we must see is that serious intentions should be paid to it. Secondly, in general, we must do everything to limit foreign interference in our domestic politics. Every nation, like every human being, has its own interests. Implicated in Sudan's crisis is the UAE, Saudi Arabia, Russia, even the EU which provided funding to a faction there to police a fence against the wave of immigration. This is of course not a license to roll out the artillery against citizens who seek foreign aid against oppression. To the contrary, it is an ammunition to leaders to avoid creating the conditions that promote helplessness and the sense of oppression and injustice that leads to these interventions by constantly and sincerely taking into account the desires of all their people and not only some. Thirdly, there is a need for African nations, including Nigeria, to develop the capacity of their states to assume full control of the mining and trade of natural resources. One of the fractional heads involved in this crisis owns good mines. The UAE bunking now prevalent here is the causing of the illegal mining of solid minerals. Sudan teaches us we should not thereby allow ordinary citizens and even foreign bandits to become de facto states unto themselves. Lastly, increasingly the mozus of the African Union have grown flabby. Since the Arusha Accords that played a part in ending the Rwandan conflict, African leaders have largely stood by as the conflicts in the IRC, Libya, Cameroon, Ethiopia, South Sudan, Mali, and others have festered. The EU needs to rediscover its mission, especially in the area of mediation and peer-to-peer review of its leaders. You know what caught my attention there was the African Union. The conflict in Cameroon, I remember in 2019 I travelled to Cameroon via the sea from Orang. I took a speedboat to Cameroon. When I got there, it was not really very pleasant. The people are generally nice, but the situation at that time was war, civil war. We have seen the English speaking part. Yeah, the English and the French. Yeah, exactly. So at that point, at some point I was harassed close to the border because I was trying to have conversation with a French-speaking military officer, she's a woman, I think one of the gender marine. She was not very fluent in speaking English. I was not very fluent in speaking French. And I was trying to talk to her. She didn't really understand where I was coming from. And I was going back to Nigeria and I was rafandud just because of that. And you know what, the excuse, once I said that really broke my heart was that you know the countries at war, we can just liber you as one of the troublemakers. What's the meaning of that? As we Afrikas have gone to this level, killings in Cameroon.  And yes, Africa Union, we sit down there and be having general assemblies. What did they discuss in general assemblies? The conflict in Ethiopia was one. And thank God Ulusya Gubasando was able to chairman the peace deal. But you know, we should not wait for outsiders to come and solve our problems as Afrikas. We can do more. Let's mozulop. I agree. The conflict in DRC for instance for me is very shameful. I mean you, and this is one of the misgivings I have about Kigami. Because you virtually have one small African state. Twisting in its tops, a bigger African state. And all that. You have other regional countries involved. These are countries controlled by the same leaders in the African Union that should be making the peace. At a point you remember there was a point in the conflict where even South Africa was involved. It's a shame. It's a shame. These are the things we should sit down in Africa. As we go into NAFTA and all that and we are trying to do free trade. We should think about and talk about seriously. We can't go on like this. This can't go on forever. The assignment we are giving them is African Union. Try to foster unity and peace amongst African nation. Will integration. Economic integration. We can become a very strong economic bloc to the world. It's not that every time there is problem in Africa or there is problem in the world. You see different world powers. Russia, US, China. They will come and start picking different states and start giving them something. I want to use that influence. I'm happy you've mentioned it because actually that's what's happening in Africa now. You see above us in the Maghreb. You hear the Russian Wagner group is always there. Some say it's even in Nigeria here and some of the clashes you see for all these bandits and all that. Even in Malifu, Malifu. We are accusing France that they have. Yes, because where there is confusion they can mine more. You see what happened in Sudan. The man owned a gold mine. One of the generals. The general that is causing the... Is he the president of the vice president? No, no, the vice president. He is fighting the president. You see the problem with Sudan was that both of them could not remove the president then. I want his name again. He actually set up these two generals. He will remain in power. One will fight one. He teamed up and removed them. So what I'm saying is the point I was making with that was look, don't let individuals be bigger than the states. We see also... We talk of privatization. But let us be careful. And that's one of the lessons I was saying we should draw in Nigeria. Let us be careful that we don't move into Uligaki. Where... Exactly. Where the state is actually controlled by individuals. And the individuals are stronger than the government. Yes. We should build strong institutions that would live in Nigeria. Exactly. Not the other way round. So these are the lessons. You can have states. If for instance someone corners the oil in Nigeria. Imagine that person virtually owns Nigeria. It's a cautionary tale that will be happening. We are not going to say all of this. I think often times the enemy is within. The enemy that we are fighting is within and not without. If you can conquer the enemy within, then it's easier to, again, picking back what I said earlier, putting up a solid front. We must conquer the enemy within. We must conquer ourselves. We must conquer our self-centeredness. We must come together as much as... I mean, politics is played everywhere virtually, even in the United States and all of that. But there is an approach, right? There is always that... I mean, I've been seeing some of this U.S. government political service on Netflix. When you see how they govern, there's always that thin line. They're not going to go beyond. This is where we draw the line of this, right? So there's this balance in their political approach, where most of them...  It's almost next to nothing. The value of a human life. What do you say?  Human life is like this.  And I also want to go to one extreme. If you look at the past history of Europe and wars and all that, you'll notice that the wars were fought by leaders to benefit not themselves but the states. If you look at Napoleon, if you look at Bismarck, even if you look at the Hitler you mentioned, it was not fighting so that it could become rich. That's the problem in Sudan. That was leadership but of course in the reverse. I mean that's leadership. That's leadership. Exactly. So they are fighting for their state, not for themselves. Bigger than them. This is what Africans need to do. Exactly.  If Napoleon was fighting for himself, he would probably have been the richest man in the world. But wasn't that what was... Something I still want to drop in our consciousness and to our viewers out there including government listing in African Union members of member states of African Union. How come we have beautiful countries like Egypt? Egypt. They always call them Middle East and North Africa. Middle East and North Africa. Why? I'm not saying it's wrong to form, anybody can form their own economic bloc but now we stand in. Can we associate more with Africans? Ya, they are always wanting to be referred to as Middle East. We want to, as you said, to stand in Libya. But when it comes to Africa, they don't want to be associated with anything good. We are Africans. When it's something bad, we are not Africans. Once free trade becomes fantastic here. Everybody wants free trade becomes fantastic here. Everybody has to play their part. President of Egypt, Ahmed ASC. He should play his part. Every other president including our own president or the incoming president. But you know right now what is going on is that every African wants to go out. But perhaps when we are trading together and we see the benefit of trading with ourselves and moving together in a collective and helping to solve our own problems. I mean sometimes you see a country want to borrow money. Some of the money they want to borrow is not something that cannot be raised in a prosperous Africa. You want to raise a billion. If we come together, if we say in eight billion dollars it's not something we can borrow within ourselves. Awesome. We'll get there. Anybody can do whatever they want. I think root of that point. Meet with whoever they want to meet. But more importantly your home. You should also make your home strong as much as you want to explore other continents, other countries, other states. Make your home strong. Africa is our home so make it strong. That's there there. The Advocacy continues on our social media platforms. On Facebook plus TV Africa hashtag The AdvocateNG or on Twitter and Instagram at plus TV Africa hashtag The AdvocateNG To catch up with previous brokers go to plus TVAfrica.com forward slash The AdvocateNG Don't forget to subscribe to our YouTube channel plus TVAfrica. Till next week, same time on this station let's keep advocating for a better society.


SCP-179 is a humanoid entity located at a constant distance of approximately 40,000 kilometers from the south polar region of the solar photosphere. Through the combined effort of 43 years of continuous surveying, the external appearance of SCP-179 has been defined as a human female of undetermined ethnic group. Several markings or tattoos are placed throughout its bodily midline. Starting from their brightness, these markings might be of metallic composition and of a golden hue. SCP-179 is sensitive to all radiation in the electromagnetic spectrum, intelligent and able to communicate through multiple anomalous means, including but not limited to radio and laser communications interference.


Nvidia released a free background noise removal tool that I'm using right now called RTX Voice. You can download it and I'll show you exactly how it works with and without the noise removal. Right now I am removing noise so all my keyboard typing I'm typing now you can't hear it and if I turn it off I am typing now can you hear it and there's also background noise my air con is running now the noise removal tool is active it is basically eliminating all background noise without affecting my voice it's so cool because it's free and it only works on GTX and RTX cards not only RTX cards let me give you another example this is my favorite typing wordfall.com in this typing game I'm about to go madly type at 100 words per minute and make some errors along the way but you don't hear me typing do you now I'm going to turn off noise removal and I'll do exactly the same thing so you can see I'm actually typing and making lots of mistakes okay you get the idea now how do you get this noise removal tool well this is the official Nvidia page about RTX Voice the link is down there in the comments no description below I was gonna get those two mixed up and how did I even know about this one of you told me about it in the comments in my last video fine gaming connoisseur said I've recently started using Nvidia RTX Voice which mutes most of the loud fan noise coming from my laptop I didn't even know this thing existed guys so I quickly googled it and it really is working well the instructions here show you how to install it on GTX cards because I don't have an RTX card the link to this article is down there in the description below and basically you need to do some editing of a config file to remove this little piece so that you can install it on a GTX card and it works really well even on GTX cards that uses your CUDA cores your GPU to do some artificial intelligence noise removal that doesn't affect your CPU and so you can still game with the same FPS while having uh no background noise now what's really cool is with RTX you get Minecraft with ray tracing fully rendered real-time ray tracing so you know what I did I went and bought me this so I now am the proud owner this is not unboxed this is the original box unopened legit so I will have an RTX card but right now I'm running on my GTX 1080 and this works on GTX 1060 1070 1080 all really well I love it guys tell me what you think down there in the comments below are there any other tools that I don't know about that I want to share with all of you uh that you can tell me like fine gaming connoisseur did about RTX voice let's help each other grow together as a family because that is the spirit of freedom and if you are curious about wordfall oh the game is still playing for me this is a beta we are building it it's our game guys this is our second game after the clot thickens as I said it's on wordfall.com and if you want to try it out let us know how you like it the point of the game is you'll be able to get high scores for playing different levels and you can also do a practice mode where you can set your target words per minute and how long you want to be punished for you can also choose different themes I actually really like the retro theme that I'll show you quickly right now it reminds me of typing tutor wordfall if you guys remember that same game just with some retro graphics in it and we also have a multiplayer mode coming it is working in our test servers but we haven't launched it yet where you can play with each other cooperatively so you can invite people to a lobby and then play wordfall together with them so you can try to beat higher levels than you could on your own and later on we will have some competitive modes as well as a boss fight mode where things will fall like fireball and you have to type fireball to shoot a fireball at the boss and shield to defend against his attacks it'll be both strategy and typing speed and working cooperatively with other players just like in an mmo raid and we hope you'll really enjoy this game mode we're gonna have a lot of fun building it and hopefully play with you and the other feature we will add very soon is for you to provide custom word lists so you'll be able to upload phrases that are meaningful to you so you can play with your audience and they can enjoy the things that you always are known for saying like let's help each other grow together as a family or just for freedom and the freedom family those are the gonna be the keywords you're gonna be typing when you play with me in my custom version of wordfall is this a fun game guys does it sound like a fun game let's do a poll click that to answer the question are you excited about wordfall yes or no and as you know poll cards are going away on June 10th so this will be our very last poll that we can all do together so cast your vote and let's see how many of you are in fact excited and this chart which is something I told you to do for all of your videos but yeah the poll cards are going away tomorrow so let's see if they actually go away hey look 89% of you when I asked said yes I want to keep poll cards so let's see if YouTube keeps them I think they won't but we'll see tomorrow all right freedom family who am I I am your Papa George your George son pie and the guy the beardage what was that one let me look it up in the comment history search for bearded here we go ninja jowl said your new nickname would be mr super freedom George the bearded man all right I gotta get to know that one thank you ninja jowl for that new name I am the CEO and founder of freedom for freedom whoops which hand for freedom and the freedom family where we all help each other grow together as a family in case you're wondering normally I'm wearing a black shirt I chose to wear this gray shirt because this slide where did it go is in black so in this mode you probably would see just a floating head a quick wardrobe change complete here is the talking head I am kind of black on black here I think actually the chair does give me some form around my body but yeah I think the gray shirt was better don't you and we're back in gray all right freedom family today I did my jog swim and jog back home again and I lost 3.4 kilograms before I started my jog I was 84.7 kg an hour and a half later when I came back home and weighed myself on the same scale I was 81.3 84.7 minus 81.3 is 3.4 3.4 kilograms in less than two hours that's like you know unheard of weight loss of course it's mostly water loss and I quickly drank two kilograms of water literally two kilograms of liquids lemon juice lime juice water and a little bit of milk and my weight went up to like 83.7 or 83.3 I think kilograms yeah basically two kilograms of liquids but I hope this routine of jogging swimming jogging will lower my weight over time my goal is to hit to 75 kilograms and then I feel I will lose this belly what's your target weight freedom family tell me down there in the comments below and what are you doing to reach it what type of exercises have you been doing regularly and I mean really doing not just promising yourself you'll be doing and then not doing them because you're lazy so easy to be lazy isn't it well don't be lazy get out there get off that chair do your exercises be it jogging gym swimming rowing skipping rope anything just work up a sweat and do that every day all right freedom family I am George and you oh if you like this video click the like button and subscribe to this channel and hit that bell the or what is it dong that bell to get notified about future updates I've seen a lot of creators remind their audience to like and subscribe and I haven't been doing it so I'm a little I'm trying to find the right wording to get used to say it at the end of each of my videos but does it actually make a difference guys do you like and subscribe to channels when the creator asks you to at the end of his videos or do you just do it anyway because well because you like the video and because you want to subscribe to get more content and notified of without being told to I'd love to know I'll try using this tactic and see if we grow faster in this channel all right once again I'm George and you've been watching click that I to partner with freedom and join the freedom family so we can all grow together you get many perks like position music you also get epidemic sound a lot of other access to royalty free videos sponsorships and many things to help you grow just click the links down there in the description below to get involved in our community our forums our discord chat servers meet our graphics team meet our community team all of that on discord and the forums what are you waiting for get started and we will grow together as a family because this is the freedom family you are part of it we are all part of it and we're all growing together to get more george click that big f that will subscribe you to freedom central home of the george show and pewdiepie gave one of you freedom family a big shout out click that video to see the shout out and to see our new 3d sets for you and click that video to see what 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In this video, we're going to prove our final theorem of lecture 34, which is sometimes entitled the fourth isomorphism theorem. More often than not, I feel like it's called the correspondence theorem, which that's what the label we're going to take here. And the correspondence theorem, this is the correspondence theorem for the sake of groups in other algebraic categories like rings and modules and such. There's also a corresponding correspondence theorem. What the correspondence theorem says is that it essentially homomorphisms preserve haze diagrams. So the statement is actually sort of a mouthful itself. So let n be a normal subgroup of g. Then there exists a one-to-one correspondence, which is where it gets its name. There's a one-to-one correspondence between the set of subgroups of g. You might call this the lattice of subgroups of g containing n and the set of subgroups of g mod n. So just so you're aware of this set, we don't consider every subgroup of g. We only consider those subgroups that contain n. So if you take the set of subgroups of g containing n and you take the set of subgroups of g mod n, then there's a one-to-one correspondence between those, the bijection. And the bijection is simply you take the subgroup h, which h is a subgroup of g, but it also contains n. And you're going to map this over to h mod n, which h mod n is going to be a subgroup of g mod n and clearly it will contain n mod n, which n mod n is just the trivial subgroup of g mod n. And so that's the bijection. So furthermore, this correspondence restricts to a one-to-one correspondence between the set of normal subgroups of g containing n and the set of normal subgroups of g mod n. So this correspondence, there's a one-to-one correspondence between the subgroups of g containing n and the subgroups of g mod n. And when you restrict your attention to normal subgroups, that's still a one-to-one correspondence. That is, normal subgroups will map to normal subgroups here. All right, so how are we going to accomplish this? So this map where you send the subgroup h to h mod n, this is essentially just the natural map, the quotient map, eta, which eta will send g to g mod n. So remember what this thing does is you have an element g, which will map it over to its coset g n. That's the natural map. So this is a homomorphism. So if h is a subgroup of g, wherein is a normal subgroup of that, I want to remember here that we've proven previously that the homomorphic image of a subgroup is a subgroup. So phi of h is, in fact, going to be a subgroup of g mod n, which is the co-domain in that situation. But what is g mod h? g mod h, because it contains n, this is just going to be h mod n. That's what we want to try to convince ourselves of, that why is this correspondence legitimate here? So h mod n is a subgroup of g mod n, and eta, since it's a homomorphism, in fact, every subgroup of g mod n is of this form, of this form right here, since eta is surjective. Therefore, the natural map establishes a correspondence between the subgroups, the subgroups of g containing n and the subgroups of g mod n, namely this one right here. So this is really the kicker, that because n is a subgroup of h, then phi of h is actually identical to just h mod n, like so. Let's see, so furthermore, we want to show that this is one-to-one correspondence. So this says that, okay, we can send h over to h mod n, the eta does exactly that, but that just, it's a function relationship. Is it in fact a bijection like we claim it is? Well, let's establish a inverse function. So furthermore, h is the pre-image of h mod n. How do we know that, right? So we know that if you have a homomorphism, pre-images are subgroups. So the pre-image of a subgroup h mod n is going to be a subgroup of g, okay? It's going to be a subgroup that does contain n. So n is going to be contained inside of there. And h maps onto that thing here. And so when you do these things back to back, right? So we see that h is going to map over to h mod n, which then maps over back to h when you do the inverse here. And so because these, because this correspondence has an inverse and necessarily has to be bijective, so it's a one-to-one correspondence. And so finally, if h mod n is normal inside of g mod n, we have seen previously that pre-images will send normal subgroups to normal subgroups. So the pre-image h mod n has to be normal in g, but that pre-image is h itself. So if h mod n is normal, then h will be normal. In the other direction though, right? This is the one we don't prove in general. If h is a normal subgroup of g, then h mod n, which is the image eta of h, I claim this will be normal inside of g mod n. This follows from the fact that eta here is going to be a surjective map. So maybe we see a little bit more detail on what's going on there. Why is that? So if we take g n and we times this by h n and we times that by g n inverse, this is going to equal g h g inverse n, which this element right here, since n is normal, g h g inverse will be inside of h. So this thing is going to live inside of h n, which h n is the image of eta h right there. These things are the same thing. So in fact, we do get normality. And so the correspondence theorem then tells us that normal subgroups will correspond to normal subgroups. I want to provide an example of this and we're going to look at a picture to help illustrate this. So the groups are going to play here. We're going to take the symmetric group S4 and we're going to consider the normal subgroup V4. So this is our g and this is our n going on in this situation here. So there are six subgroups of S4 which contain V4. That is S4 itself, V4 itself, the alternating group A4 will contain V4 as well. The other three groups are going to be groups which are dihedral groups. That is these are groups that are isomorphic to D4, the symmetries of the square. So one of them is going to be the subgroup generated by 1, 2, 3, 4 and 1, 2, 3, 4. So there's a four cycle and then a 2, 2 cycle. Another dihedral group will be generated by 1, 3, 4, 2, the four cycle and 1, 3, 4, 2, the 2, 2 cycle. You may be able to see the pattern we're doing here. And then the third dihedral group will be generated by the four cycle 1, 4, 2, 3 and then the 2, 2 cycle 1, 4, 2, 3. So those three groups are all going to be isomorphic to each other. They're isomorphic to D4 and they all contain the Klein 4 group. The first three groups are normal while the dihedral groups are non-normal. So S4 of course is normal inside of itself. V4 is normal inside of S4 and so is the alternating group. So these green groups you can see right here are normal subgroups that contain V4. The Ds are not. The Haase diagram for S4 and for S4 mod V4 which is isomorphic to S3 are illustrated below. So you can see here these are the subgroups of S4 that contain V4. This right here is the entire Haase diagram for S4 mod V4 which S4 mod V4 is S3 right here. And so you're going to see the correspondence here. S4 mod V4 is going to be S3. A4 mod V4 like we saw before that's equal to A3 which is just a cyclic group of order 3. V4 mod V4 of course is just the identity and then these other groups when you mod out the Klein 4 group you're basically going to get something that looks like a 2 cycle. You get something like the cyclic subgroup generated by 1, 2. The cyclic subgroup generated by 1, 3. And then this would be isomorphic to I should say these are isomorphic to this is isomorphic to the cyclic subgroup generated by 1, 4. Like something like that. So this is the usual Haase diagram for S3. So we see the two pictures of the same. That's what the correspondence theorem is telling us. The correspondence theorem tells us that these Haase diagrams, what's going on there, these Haase diagrams are going to be isomorphic to each other. But in particular if we restrict our attention to the normal subgroups, in this case the Haase diagram of normal subgroups also is isomorphic to each other. And so this is what's guaranteed by that correspondence theorem. The corresponding Haase diagrams are the same.