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You can change a Slackware box's
hostname by two methods:
2) Use the hostname command-
- On any running Linux system you can change its hostname with the command ‘hostname‘.
#hostnamewithout any parameter it will output the current hostname of the system.
hostname –fqdwill output the fully qualified domain name (or FQDN) of the system.
hostname NEW_NAMEwill set the hostname of the system to NEW_NAME. This is active right away and will remain like that until the system will be rebooted (because at system boot it will set this from some particular file configurations - see bellow how to set this permanently). You will most probably need to exit the current shell in order to see the change in your shell prompt.