Set Domain Name Redhat Linux. To change the hostname and FQDN on RHEL 7 and CentOS follow the given below steps. DOMAINNAME Add below parameter in etcsysctlconf.
Configure domain name in Red Hat RHEL Fedora and CentOS. Then add the line below with the IP address of the server the fully qualify domain name and the server short name. FQDN Fully Qualified Domain Name.
I have experienced multiple instances of companies changing the hostnames or IPs of storage servers and then wondering why their data replication broke.
You can use the redhat-config-network tool either from the command line or from the Network icon in the System Settings menu in the GUI to set the hostname of your machine. Now edit the etchosts file in system. The Red Hat Customer Portal delivers the knowledge expertise and guidance available through your Red Hat subscription. How to setup nameserver in Red Hat.