This is a simple and short article for show How to Change Hostname (Computer Name) in Ubuntu/Debian based distribution Linux OS.
1. Display current hostname
2. Change Hostname
This command temporary set a hostname for your system until next reboot.
3. To change the hostname permanently, run below command to edit the host files /etc/hostname.
1. Display current hostname
# hostname
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2. Change Hostname
# hostname new_host_name
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This command temporary set a hostname for your system until next reboot.
3. To change the hostname permanently, run below command to edit the host files /etc/hostname.
# sudo vim /etc/hostname
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In /etc/hostname file give new hostname what you want and save them.
4. Finally, restart your system to apply the changes.
# reboot
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