Xinetd is a standalone application that listens on many different network ports and executes (spawns) other server applications as needed. Xinetd is more secure and powerful than the standard UNIX inetd application.
By default, xinetd listens for the following services:
pop3
pop3s
imap4
imap4s
ftp
netbios-ssn (samba session service)
netbios-ns (samba nameserver service)
telnet
Additionally, xinetd is configured to be aware of the following services, although they are turned off by default:
shell (a.k.a. rshell)
login (a.k.a. rlogin)
finger
ntalk
A variety of messages related to xinetd and the services that it listens for are logged to /var/log/service.log. If you experience problems with xinetd or any of the applications it provides service for, it may be helpful to view this log file.