I ran into an interesting problem today when installing the newly released Fedora 18. It was quite annoying, so I wanted to document it here.
Using the new installer, I configured my computer’s host name to subdomain.domain.com on the network setup page. After I finished the installation, I noticed my host name was still the default localhost.localdomain. I tried the usual tricks to set the host name, but all the following tactics failed:
- /etc/sysconfig/network by setting HOSTNAME=subdomain.domain.com
- Using the hostname subdomain.domain.com command.
- Changing the System Settings > Details > Device name field.
I was able to get the host name set, but instead of subdomain.domain.com, the host name was displayed as subdomain-domain-com. No matter what I did, I couldn’t get the correct host name.
It turns out, there’s a new place to configure your host name in Fedora 18. Just edit the /etc/hostname file, add your host name, and restart your computer. Simple as that.
Update: Several readers have pointed out the hostnamectl utility. Using this tool, you can set the host name properly on a Fedora 18 system. The syntax for this change is:
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hostnamectl set-hostname subdomain.domain.com