You need to edit the file "/etc/init.d/ircd"
Change line 35 from:
    daemon /usr/sbin/ircd
to
    daemon /usr/sbin/ircd -s
When  this  option  is specified, iauth will not be started.  This  means  that  the  IRC  daemon  will perform  "ident  lookups"  (RFC 1413) internally to attempt to authenticate incoming  connections.   No other authentication mechanism will be used.
To use ircd you need to run it from this script;
/etc/init.d/ircd {start|stop|status|restart|condrestart|reload}
Hope this helps. I've never ran an irc daemon before. Might play with it myself for awhile 
