How do i change the hostname on redhat 7?

giantpanda

Man page for hostnamectl: http://bit.ly/2uxFQ4g

To get the current hostname:

$ hostname
redhat-webserver

The options for hostnamectl are as follows:

$ hostnamectl help
[sudo] password for trainer: 
hostnamectl [OPTIONS...] COMMAND ...

Query or change system hostname.

  -h --help              Show this help
     --version           Show package version
     --no-ask-password   Do not prompt for password
  -H --host=[USER@]HOST  Operate on remote host
  -M --machine=CONTAINER Operate on local container
     --transient         Only set transient hostname
     --static            Only set static hostname
     --pretty            Only set pretty hostname

Commands:
  status                 Show current hostname settings
  set-hostname NAME      Set system hostname
  set-icon-name NAME     Set icon name for host
  set-chassis NAME       Set chassis type for host
  set-deployment NAME    Set deployment environment for host
  set-location NAME      Set location for host

To change the hostname on redhat 7 type linux platforms.

$ sudo hostnamectl set-hostname redhat-webserver.g90823.com
$ hostname
redhat-webserver.g90823.com