Hostnamectl: Difference between revisions
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{{Warn|Note that changing the host name with <tt>hostnamectl set-hostname</tt> does not update <tt>/etc/hosts</tt> so you may want to review <tt>/etc/hosts</tt> and change the mapping of the host's network interface addresses to the new name.}} | {{Warn|Note that changing the host name with <tt>hostnamectl set-hostname</tt> does not update <tt>/etc/hosts</tt> so you may want to review <tt>/etc/hosts</tt> and change the mapping of the host's network interface addresses to the new name.}} | ||
==If the Name is Publicly Resolved by DNS== | |||
<font color=red>TODO http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/set-hostname.html</font> | |||
==/etc/sysconfig/network HOSTNAME== | |||
Setting HOSTNAME in <tt>/etc/sysconfig/network</tt> as shown in the following example | |||
<pre> | <pre> | ||
... | |||
NETWORKING=yes | NETWORKING=yes | ||
GATEWAY=192.168.0.1 | GATEWAY=192.168.0.1 | ||
| Line 50: | Line 50: | ||
</pre> | </pre> | ||
may interfere with network configuration script and change the host name. | |||
</ | {{Warn|This is '''NOT''' the preferred way of changing the host name, <tt>hostnamectl</tt> is.}} | ||
=Setting the Name= | =Setting the Name= | ||
Revision as of 02:20, 4 April 2017
External
- http://man7.org/linux/man-pages/man1/hostnamectl.1.html
- http://man7.org/linux/man-pages/man8/systemd-hostnamed.8.html
Internal
Overview
Change the Host Name
The preferred way to change a host name is with hostnamectl as follows:
hostnamectl set-hostname <name>
Example:
hostnamectl set-hostname docker-server.local
This commands changes all the hostnames (static, pretty and transient) of the system.
hostnamectl set-hostname and /etc/hosts
Note that changing the host name with hostnamectl set-hostname does not update /etc/hosts so you may want to review /etc/hosts and change the mapping of the host's network interface addresses to the new name.
If the Name is Publicly Resolved by DNS
TODO http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/set-hostname.html
/etc/sysconfig/network HOSTNAME
Setting HOSTNAME in /etc/sysconfig/network as shown in the following example
... NETWORKING=yes GATEWAY=192.168.0.1 ... HOSTNAME=not500.localdomain
may interfere with network configuration script and change the host name.
This is NOT the preferred way of changing the host name, hostnamectl is.
Setting the Name
hostnamectl [--static|--pretty|--transient] set-hostname blah