Xinetd consists as an extended Internet daemon. As it is an open source service, thus it is most probable used in Unix/Linux based systems to manage network connections. You can say this an upgraded version of Inetd, which is also consists as an Internet daemon.
To manage services on a schedule, Xinetd is using access control mechanisms such as TCP wrapper, which has a great potential for logging. Among with other things, Xinetd may bound the number of servers that the system can run and has a deploy-able protective mechanisms to act the port scanner.
This Internet daemon runs and supports a variety of Internet related services including FTP and Telnet. As similar to Inetd, Xinetd also provides additional layer security. Additionally Xinetd replaced the Inetd in Mac OS X v10.3, but later it was replaced by launched in Mac OS X v10.4. However, Apple has left Inetd for its compatibility.
