The best way to Change an OpenBSD Server’s Hostname Completely

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The best way to Change an OpenBSD Server’s Hostname ThoroughlyMar 09, 2023 @ 7:54 pm /
/Altering host names on Unix is surprisingly difficult and implementation-specific. Despite the fact that there’s a “hostname” command in most (all?) Unices, it typically doesn’t change every little thing.After lately renaming an OpenBSD system, I believed I’d make a fast howto. On this instance, I’ll change a server the brand new title cthulhu.instance.com.First, use the hostname command:# hostname cthulhu.instance.comNext modify /and so on/myname to have the identical info:# cat /and so on/myname
cthulhu.instance.comUpdate /and so on/hosts, changing the outdated hostname with the brand new.Lastly change the host keys:# cd /and so on/ssh
# rm -f *_key *.pub
# ssh-keygen -AAnd that’s it for the bottom system. Contemplate different software program you might need put in similar to mail, and so on. Dread Lord of LowEnd Content material at LowEndBoxI’m raindog308, techno polymath and long-time LowEndTalk neighborhood Administrator. My technical pursuits embrace all issues Unix, perl, python, golang, shell scripting, classic working techniques similar to MVS, and relational database techniques similar to Oracle, PostgreSQL, and MySQL.I additionally get pleasure from utilizing LEBs! I’ve an empire of little guys for VPNs, bigger guys for apps, and massive guys for databases and storage. Once I’m not in entrance a display I am into German Shepherd canines, high quality knives, goal taking pictures, theology, tabletop roleplaying video games, and forest mountaineering.I get pleasure from writing technical articles right here on LowEndBox to assist individuals get extra out of their techniques. You could find me on LowEndTalk @raindog308Latest posts by raindog308 (see all)