Changing the Hostname
You’ll need to set your system’s hostname and fully qualified domain name (FQDN). Your hostname should be something unique. Note that the system’s hostname has no relationship to websites or email services hosted on it, aside from providing a name for the system itself. Your hostname should not be “www” or anything too generic.
Hostname's examples, "server1", "wwwbox2", or "server50.mydomain.com".
CentOS 7 / Debian 8 / Fedora version 18 and above / Ubuntu 15.04
Replace hostname with one of your choice.
hostnamectl set-hostname hostname
Debian 7 / Slackware / Ubuntu 14.04
Replace hostname with one of your choice.
echo "hostname" > /etc/hostname
hostname -F /etc/hostname
Check if the file /etc/default/dhcpcd exists.
ls /etc/default
If so, edit it and comment out the SET_HOSTNAME directive:
- /etc/default/dhcpcd
-
#SET_HOSTNAME='yes'
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CentOS 6 / Fedora version 17 and below
Replace hostname with one of your choice.
1) echo "HOSTNAME=hostname" >> /etc/sysconfig/network
2) hostname "hostname"
Update /etc/hosts
Next, edit your /etc/hosts file to resemble the following example, replacing hostname with your chosen hostname, example.com with your system’s domain name, and 67.227.230.55 with your system’s IP address. As with the hostname, the domain name part of your FQDN does not necessarily need to have any relationship to websites or other services hosted on the server (although it may if you wish). As an example, you might host “www.something.com” on your server, but the system’s FQDN might be “mars.somethingelse.com.”
- /etc/hosts
-
127.0.0.1 localhost.localdomain localhost
67.227.230.55 hostname.example.com hostname
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If you have IPv6 enabled on your Linode, you will also want to add an entry for your IPv6 address, as shown in this example:
- /etc/hosts
-
127.0.0.1 localhost.localdomain localhost
67.227.230.55 hostname.example.com hostname
0:0:0:0:0:ffff:43e3:e637 hostname.example.com hostname
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Now your VPS is ready with new hostname.
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