I may have not correctly said what I meant. I was referring to the "hidden host" feature. I vaguely remember reading about it in the changelog of a 1.x version. For instance, if user joe has got the hostname: myhostname.com, it would appear to other users as 22492032.com (random numeric string).
It may have been a patched version of ircu or I may be confusing it with another server. If this is the case, sorry for the bother. Best regards. >You must be confusing our ircd with other ircds floating in circulation >on >the Internet. The Undernet ircd (ircu) does not perform any type of >host >encryption at any level. > >Cheers, >netski