I can't seem to find this information anywhere, (maybe i missed it), but what ircd protocal do we use for which ircd?

Bahamut 1.4 IRCd Uses ircd.bahamut.ini
Unreal IRCd uses ircd.unreal.ini

im just looking for a table for this cause i need to find which protocal to use with mine

Ultimate IRC 3.0 uses ?

i cant seem to get my services to connect to my IRCd. is there some kind of command while starting it to get error information? that can show me the reason why it doesnt fully load up?

thanks in advance for this info