ubuntu 20.04 server

It may be useful to run the sudo command without password, maybe you’re lazy, maybe your account has no password, or ssh password authentication are not permitted.

Passwordless login

⚠ Here may be dragons!

⚠ While playing with the sudoers system, a small error MAY lock you outside of your system. This can prevent remote AND local logins. Always keep a tty connected logged in as root. ⚠

1. Create the file /etc/sudoers.d/50-sudonopass-group-passwordless

   # Users in the 'sudonopass' group don't need passwords
   %sudonopass ALL=(ALL) NOPASSWD:ALL
   

2. Ensure correct permissions

   sudo chmod 0440 /etc/sudoers.d/50-sudonopass-group-passwordless
   

3. Check configuration

   sudo visudo -c
   

4. Create the group sudonopass, if you know what a GID is, select a free one and, do that:

   sudo groupadd -g FREE_GID sudonopass # or if you don't : sudo groupadd sudonopass
   

5. Add the user to the group sudonopass

   sudo usermod -a -G sudonopass the_user
   

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Question, remark, bug? Don't hesitate to contact me or report a bug.