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-qu alified-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? Thanks, Joe _______________________________________________ Joe, I used the following command in the /etc/rc.d/rc.local file which is used at boot time. /bin/domainname Domain.com Make sure you also use : chmod +x /etc/rc.d/rc.local to make sure the file is executable. Greg