How to set your Domain name in Linux
Resume to set a domain name in Linux concepts: FQDN (Fully Qualified Domain Name) eg: hostname = server1 // FQDN = server1.example.com 1. First add FQDN to your hostname in /etc/hosts file. # cat /etc/hosts 10.120.68.23 server1.example.com server1 confirm the FQDN issue the following command: # hostname -f server1.example.com 2.1. Configure domain name (Red Hat RHEL, Fedora and CentOS) From these path add the parameters needs vi /etc/sysconfig/network DOMAINNAME=<domainname> vi /etc/sysctl.conf kernel.domainname = <domainname> 2.2. figure domain name ( Ubuntu, Debian) #vi /etc/hostname server1 Then restart the service: ...