19 - Change Linux Hostname Redhat / CentOS / Fedora

  • 1- Find and edit the following file "/etc/hosts" 
    • 127.0.0.1               localhost.localdomain localhost --new_hostname--
::1             localhost6.localdomain6 localhost6
10.111.1.111 xxxx1
10.111.2.111 xxxx2
  • 2- Edit /etc/sysconfig/network
    • NETWORKING=yes
NETWORKING_IPV6=no
HOSTNAME=localhost.localdomain   <<- replace here with the new_hostname

    Save and close the file.

  • 3- Type the following command:
    •  hostname --your new hostname--
 hostname

    Your new host name should be set now.

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