From LQWiki

xinetd.conf is the master configuration file for xinetd.

defaults
{
  log_type        = SYSLOG daemon info
  log_on_failure  = HOST
  log_on_success  = PID HOST DURATION EXIT
  cps             = 50 10
  instances       = 50
  per_source      = 10
}
includedir /etc/xinetd.d

Apart from default settings for various services it may define a directory where other services get their xinetd-configuration like

• swat
• rsync
• svn
• cvs