[CentOS] How to set hostname and domainnmae in CentOS 7?

[James Hogarth]

On 5 April 2016 at 20:24, Joe Smithian <joe.smithian at gmail.com> wrote:

> We can permanently set hostname using  hostnamectl set-hostname. How can we
> permanently set *domain name* in CentOS 7?
> I found an article
> <
> http://unix.stackexchange.com/questions/239920/how-to-set-the-fully-qualified-hostname-on-centos-7-0
> >
> that recommended setting FQDN using hostnamectl. Is that the right way to
> set hostname and domainname at the same time using *hostnamectl
> set-hostname* command?
>
>  Running *hostnamectl set-hostname* will set the hostname in*
> /etc/hostname*
> but it doesn't change */etc/hosts*. What's the proper way of adding
> hostname and FQDN to */etc/hosts *in CentOS 7?
>
>
Technically speaking one shouldn't put the hostname in /etc/hosts as it's
not required so long as your DNS is working ... which it should be ...