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The hostname of my name is very long, which is odd. How can change the hostname for my system?

My hostname, currently, is

himanshu@himanshu-Lenovo-ideapad-100-15IBD:~$

Is there any way I can shorten this or change it entirely?

muru
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bhardwaj_himanshu
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  • First, check the linked question and, second, if this is a clean installation, a simple fix would be to just reinstall it and change the hostname that is filled in after you enter your name while Ubuntu is installing. As for an easier fix, I don't know. – Amolith Oct 11 '17 at 18:24

1 Answers1

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Open Terminal (Alt+Ctrl+T), and enter this:

sudo -H gedit /etc/hostname

Enter your password, and then a file will open. Just change the name to the new hostname, and save the file. Do the same with the hosts file, by running:

sudo -H gedit /etc/hosts

Edit the name to your new hostname after 127.0.0.1 and save.

Restart your computer, and it should be done.

Edit: Use gksudo instead of sudo. It's safer.

Kartik Shah
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  • At all `sudo gedit` or `sudo ` is not a good idea. This will change the ownership of some files and folder within your home directory, that will cause future errors. To recover from this problem you should run `sudo chown -R $USER:$USER $HOME`. For future use `sudo -i gedit`, or `sudo -H gedit`, or better `sudo nano filename`. – pa4080 Oct 11 '17 at 19:44
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    sudo -e filename – user334639 Oct 12 '17 at 00:23
  • @pa4080 I did not have knowledge of that. Learned something new. Thank You. – Kartik Shah Oct 12 '17 at 15:16
  • Use `gksudo` it is much safer than `sudo` Ex : `gksudo gedit filename` – himanshuxd Nov 25 '17 at 22:02