I secured a domain that I manage through GoDaddy, if I go to the DNS management and add an "A" record for the hostname to IP address. This will put the server in your domain similar to
anyhost.fatcat.com
I used this to give my servers domain names
Changing hostname on OEL 7
Additional Hostname Domain Stuff
In this post we will see how we can change the hostname on Linux 7 host. This article is demonstrated on Oracle Enterprise Linux 7.1 – 64 Bit.
Check the existing hostname:
We can use command “hostnamectl” to check the existing hostname.
[root@localhost ~]# hostnamectl status Static hostname: localhost.localdomain Icon name: computer Chassis: n/a Machine ID: fc456ff1ece743cfb79756356feaca35 Boot ID: c120fe1a556d4cf78f0cfe548800bb65 Virtualization: oracle Operating System: Oracle Linux Server 7.1 CPE OS Name: cpe:/o:oracle:linux:7:1 Kernel: Linux 3.8.13-55.1.6.el7uek.x86_64 Architecture: x86_64 [root@localhost ~]#
It will read the value of static hostname from file “/etc/hostname”.
Update hostname in “/etc/hostname” file:
[root@localhost ~]# cat /etc/hostname oraerp1 [root@localhost ~]# cat /etc/hostname.bkp localhost.localdomain [root@localhost ~]#
[root@localhost ~]# hostnamectl status Static hostname: oraerp1 Icon name: computer Chassis: n/a Machine ID: fc456ff1ece743cfb79756356feaca35 Boot ID: c120fe1a556d4cf78f0cfe548800bb65 Virtualization: oracle Operating System: Oracle Linux Server 7.1 CPE OS Name: cpe:/o:oracle:linux:7:1 Kernel: Linux 3.8.13-55.1.6.el7uek.x86_64 Architecture: x86_64
Verify the new hostname:
After connecting with the new session then new hostname will be reflected.
[root@localhost ~]# su - Last login: Tue Nov 10 00:55:45 AST 2015 on pts/0 [root@oraerp1 ~]#