Linux - change the hostname in the CLI

问题:

I don't know how to search for this and that is why I asked for it (all my searches did not reveal any relevant information).

I have a Fedora 18 server that looks like this:

[root@dhcp-192-168-5-100 ~]#

I want to change that to:

[root@server1 ~]#

Currently, this machine is set to get IP through DHCP, but that is not the IP address of the machine and that is why I need to change the CLI to something more relevant.

Thank you

回答1:

you can type "hostname HOSTNAME" where HOSTNAME is the new name you want. The next time you log in / connect via ssh, that's what you'll see.

回答2:

1. Edit /etc/sysconfig/network and change/add HOSTNAME variable like so HOSTNAME=server1.domain.com After restart it should have server1.
2. Edit /etc/hosts and add server1 and server1.domain.com to 127.0.0.1 line, so it will look like: 127.0.0.1 localhost.localdomain localhost server1 server1.domain.com

More about network file you can read here: https://docs.fedoraproject.org/en-US/Fedora/15/html/Deployment_Guide/ch-The_sysconfig_Directory.html#s2-sysconfig-network

回答3:

Just found this and this is described pretty good.

   [root@dhcp-192-168-5-100 ~]# hostname MYHOSTNAME

Change hostname in Feodora

回答4:

1. Add "yournewhostname" into /etc/sysconfig/network in the HOSTNAME field..
2. Add "yournewhostname" into /etc/hosts for 127.0.0.1
3. echo "yournewhostname" > /proc/sys/kernel/hostname or service hostname

IMPORTANT: logout and log back in.