 These tools simplify access to several network services, including a mail transfer agent, AFP and SMB servers, an LDAP server, a domain name server, and others.Also included (particularly in later versions) are numerous additional services and the tools to manage them, such as web server, wiki server, chat server, calendar server, and many others.Mac OS X Server was provided as the operating system for Xserve computers, rack mounted server computers designed by Apple.