Huh? I don't understand the question. The syntax is not "slackware" but like every gnu program wants to be, so you have to read HOW-TO's or (for example) man sshd. Allthough the layout of files in folders may be different than the HOW-TO's.
pick an editor (mcedit / pico / vi) and edit the files. Easy: pico /etc/rc.d/rc.inet1.conf (I don't have irc.inet.conf file, you missed the "1"?) or Hard: vi /etc/rc.d/rc.inet1.conf
Or better if you are afraid: netconfig (but this is not "manually")
Last edited by ludist; 09-17-2006 at 04:05 AM.