Sudo asking for password of the postgres user

Question

I'm trying to execute

sudo ufw allow 5432/tcp

Being a postgres user. But then sudo asks for a password of a postgres user

[sudo] password for postgres:

Already tried to set NOPASSWD: ALL in sudoers, but it doesn't help.

Tried to change postgres user password using psql, but it doesn't help too.

Answer 1

I've changed OS user postgres password

sudo bash

And then

passwd postgres