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On my Ubuntu system I followed the instructions for enabling sudo without a password.

It is working well, or should I say too well.

I have a couple of users, say userA and userB, who have been added to the sudo group.

sudo usermod -aG sudo userA
sudo usermod -aG sudo userB

I did sudo visudo and I added the following line at the bottom (i.e. the very last line):
userA ALL=(ALL) NOPASSWD: ALL

However, I am finding that sudo without password is enabled for both userA and userB.

Question: How can I enable sudo without password for userA, but not userB?

Sandeep
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    Post your `/etc/sudoers` and any file you changed in `/etc/sudoers.d`. Presumably you added `NOPASSWD:` to another line. Note that [if multiple rules apply, the last one counts](https://unix.stackexchange.com/questions/18830/how-to-run-a-specific-program-as-root-without-a-password-prompt). – Gilles 'SO- stop being evil' Dec 10 '21 at 19:52
  • does the rule defining `%sudo` (i.e. the rule for members of group sudo) also have `NOPASSWD`? or do you have a line with `Defaults exempt_group=sudo`? You added both users to the sudo group, and (from `man sudoers`) *"Users in this group are exempt from password and PATH requirements."* – cas Dec 11 '21 at 05:02

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