A Quick Guide To Firewall Solutions For Small Businesses

Understanding Firewalls and its Types


Firewall Network Security System in Dubai

Though the primary goal of the firewall is to restrict the internet traffic flowing into the network and from the network, there are five different types of firewalls that are deployed based on the unique requirement. However, one has to understand that there is a certain degree of overlap between the five types. In fact, there are a few sophisticated firewalls that restrict the flow from within the organization but leave more room for the employees inside to organization to communicate with the outside world.

Key Points about how do the firewalls function?

  • They are a single block point where the filtering and auditing of the network traffic take place.
  • The functionality of the firewall is more comparable to the TCP/IP layers.
  • As there are different types of firewalls existing today, the type of firewall that suits your type of industry is determined by the experts in the field.
  • The next step, however, is to identify where to place the firewall.
  • Once the firewall is placed, the job is far from being over. The regular auditing of how the firewall activity, begins. This is essential because there is always a constant fear of newly evolved threats attacking the system.

What are the various types of firewalls?

1. Network Layer Firewall or Stateful Firewall: This type of firewall actually considers source address, the destination address as single IP packets. The Network Layer firewall encourages the particular set of IP addresses that need to be blocked as they route the traffic directly through them. Due to this feature, they tend to be extremely fast and more transparent to the end users.

2. Application Layer Firewalls: These are more elaborate in nature. These types of firewalls host the proxies and perform an in-depth analysis of all the network traffic that passed through it. These types of firewalls are not as transparent as the Packet firewalls. These instead are used as the network address translators as they encrypt the actual address after having passed through the application.

3. Proxy Firewalls: These firewalls due to the level of filtering of the network traffic they perform are extremely slow. They offer more security than any other form of firewalls. In the proxy firewalls, the endpoint computers establish a connection to the proxy and mask the actual address of the initiator. This makes it difficult for the attackers to directly target the system.

4. Packet Filter Firewalls: These firewalls are usually deployed at routers and switches where the data packets are compared to the predefined criteria. In case of the packets and IP addresses of the port number do not match, they are excluded from the list of others entering the network.

5. Next-gen Firewalls: These are the most recent type of firewalls which integrate both the packet filter firewalls and the network layer firewalls.

While this is a quick guide to get a basic understanding of which type of firewall could work better for you, talk to our technicians at VRS Tech for a deep understanding of Firewalls. Get in touch with us at +971 56 7029840 or visit our website www.vrstech.com.

Kinds of network security firewall for securing networks from intrusions

Firewall is a network device that acts like a barrier between the incoming and outgoing traffic across the network. The firewall network security blocks the computer attacks or prevents further spreading of it. The network can be at safety from the attacks trying to intrude into the network and attempting to gain access to the valuable data present in the system. A network security firewall is essential for the network to be safe.

Network Security Firewall

Network Security Firewall

Packet filtering firewall

The packet filtering firewall blocks the traffic following a set of firewall rules, based on the IP protocol, IP address or port number. This firewall allows web-based traffic into the network and so intrusion prevention system is essential to deal with the web traffic. The intrusion prevention system does the job of differentiating the authentic from unauthentic web traffic and blocks or allows it in.

Among the packet filtering firewalls, the stateful firewalls are more powerful since the stateless firewall cannot make out if the detected packet allowed in and the packet that is disguised are different. The stateful firewall comes with an active and defined firewall management by recognizing the traffic that is part of the established outbound connection.

Deep packet inspection firewall

The deep packet inspection firewall offers security against application level attacks by examining the data in the packets entering the network. The deep packet inspection firewall offers security to some extent but does not examine the whole packet, missing some kinds of attacks. This firewall functions similar to the intrusion prevention system.

Application-aware firewall

The application-aware firewall is capable of adapting to the latest innovations of software and hardware by understanding any kind of network insecurity as per the present day’s changing needs. This firewall detects all kind of network traffic and provides granular traffic at the application level usage like Facebook, Twitter etc. in comparison to the traditional firewalls which need a separate appliance to perform the duty.

VRS Tech is an IT service provide in Dubai, UAE offering the network security firewall solutions for small and medium size or large organizations. Our expert team of engineers takes care of your network security with the effective firewall solutions in the market.

Call VRS Tech at +971 56 7029840 and we will be able to provide the best firewall solutions to secure your network.  Or refer to our website  www.vrstech.com.

Firewall Network Security-a step beyond Anti-Virus

Ever since its inception, internet has gained so much of importance and popularity which, evidently, will continue so long as the internet exists. As much good it can do in our day to day lives, it can be unsafe too. It is through the internet that unsafe things travel, finally causing insecurity to our computer networks. The world has witnessed many cases of cyber insecurity where hackers or intruders have taken unfair advantages of the limitless use one could make of the internet. Certainly, with harmful tools, they began to steal sensitive data, send virus or demand a huge sum of ransom by encrypting all the important files. None, be it an individual or a big or small sized business could afford to fall into such an unsafe zone. So the right decision would be to look for ways to have well-protected computers.

firewall network security

There have come into existence security measures into the market with many security companies and providers coming up to offer. Anti-virus is the most common type of software intended to secure your computer from virus attacks. Anti-virus would not be enough but in addition a firewall network security should be installed to protect the overall network and beef up the security.

What is anti-virus?

An anti-virus is software that is intelligent enough to prevent, search for, detect and remove viruses and other malicious software from the computer, disallowing further spread-out of the virus aiming to harm the computer. Anti-virus detects and removes the virus which has already gained access.

What is a firewall?

A firewall is a kind of network security which blocks the incoming and outgoing traffic. In most plain terms, a firewall network security system blocks malicious programs or websites from gaining access to the network but gives way to the right and authentic programs to pass through the network. This way, all the harmful programs, emails, websites can be barred from causing threats to the computer’s important files, data and programs.

Just synonymous to how a firewall prevents fire from spreading out across a building; a network firewall prevents threats from entering your network and spreading it to the other computers.

Why a firewall protection should be employed in addition to anti-virus?

The loopholes in the security should not be incentives for insecurity in the network and so one should consider, why anti-virus is not enough. An anti-virus can handle the detection and removal of the virus, infecting the computers. As a noticeable fact, every day new sorts of virus are being crafted and it may take a while for the anti-virus company to update the anti-virus software program. Instead a firewall can strictly create a blockade for any kind of virus attempting to infiltrate your computer. With a firewall installed, the harmful dangers of network infiltration can be kept at a distance.

Installation of both anti-virus software and the firewall network security is the ideal security measure.

We, at VRS Technologies Dubai, offer Firewall network security to control security risks and let you have the choice of opting for different modules of subscription for the same.

You can reach VRS Technologies on +971 55 1683152 for the firewall and other network security to protect your critical assets. You may go to our website www.vrstech.com for the various security solutions we offer.

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