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3

How can I use sudo after locking my password?

rated 0 times [ 3] [ 0] / answers: 1 / hits: 3328 / 2 Years ago, mon, april 4, 2022, 8:37:45

I was reading about passwordless authentication with ssh. So I made a key and published it to my Ubuntu server, and it worked well.

Then decided to lock my password with passwd -l lucas, and I was not longer able to use sudo. I was thinking that sudo would also be without a password.

My question now is: how can I regain the ability to use sudo?

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ingsta

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answered 2 Years ago tocklftime · Accepted Answer

After running passwd -l on a user, that user can't set their password (until after it's set back to something usable).

Since you cannot use sudo, you'll need to reset your user account password, the same way as if you'd just forgotten what it was:

How do I reset a lost administrative password?

Or How do I reset a lost password (using recovery mode requires me to type the password)?

Then you can use sudo again, and you can set PasswordAuthentication no as explained in steeldriver's answer.