1
I have a server with fqdn git.mydomain.com (this is in DNS) but I don't really want the machine to have git as its hostname.
It might not be clear exactly what I want. Or maybe I don't really understand how all this is supposed to work, but my understanding is that
hostname -f
Should return the fqdn of the server, which in this case is git.mydomain.com
And plain old hostname should return the UNqualified hostname of the server. Every resource I can find says the the unqualified name should be the start of the fqdn but this seems annoying and inconvenient.
I would like
hostname -f
To return git.mydomain.com since that really is the fqdn of the server
But I would like hostname to just return mycustomhostname.
At the moment I have /etc/hostname set as 'mycustomhostname', and in /etc/hosts I have
127.0.0.1 mycustomhostname
1.2.3.4 git.mydomain.com
Where 1.2.3.4 is my public IP. However, this results in the hostname command returning mycustomhostname (which is fine), but hostname -f returns mycustomhostname as well, which is not correct, since the fqdn is git.mydomain.com.
The main reason for this is that when I am ssh'ing in to the server I would like the bash shell to say
myusername@mycustomhostname
Instead of
myusername@git (Which is what ever guide everywhere seems to indicate it should be).
Simply because it will make it easier for me to know what server I am working with. If I have another server for git repositories (say, git.mydomain2.com) and follow the conventions I see everywhere, then if I ssh'd in to that server bash would also say
myusername@git
Which is confusing for me.
How do I properly have a different hostname to the server's fqdn?
This is on Debian Linux btw.
Cameron Ball
Posted 2012-11-29T07:34:05.513
Reputation: 150
Just add two lines to your
~/.ssh/config:Host mycustomhostnameandHostName git.mydomain.com, in that order. Seeman ssh_configfor details. This solves your original problem, but not the question as stated, so sadly not an answer. (You can even get rid of themyusername@by adding aUser myusernameline; just runningssh mycustomhostnamedoes the trick then, and both suggestions even trickle down to git (pun intended)) – Jonas Schäfer – 2014-10-09T19:07:34.3901You could create a DNS CNAME record for git.mydomain.com pointing to the server's IP or real host name server1.mydomain.com? Is there a particular reason you want
git.mydomain.comto be the "real FQDN"? FWIW OS X'sman hostnamesays: Include domain information in the printed name. This is the default behavior. [...] Trim off any domain information from the printed name.. There's no reference to those being completely different. – Daniel Beck – 2012-11-29T07:42:26.173Is the fqdn not supposed to be the domain name of the server on the Internet? If I want to access this server through a browser I type
git.mydomain.com
So therefore shouldn't that be the fqdn? – Cameron Ball – 2012-11-29T07:49:01.123