Re: Credcheck- credcheck.max_auth_failure

On Wed, Dec 11, 2024 at 5:46 AM 張宸瑋 <kenny020307(at)gmail(dot)com> wrote:

> In the use of the Credcheck suite, the parameter
> "credcheck.max_auth_failure = '3'" is set in the postgresql.conf file to
> limit users from entering incorrect passwords more than three times, after
> which their account will be locked.
>

Won't that allow absolutely anyone to lock out anyone else, including
admins/superusers? Sounds like a bad idea to me.

> Due to certain requirements, I would like to ask if there is a way or
> feature to set this parameter differently for a specific user or role, so
> that it does not apply to them.
>

There is not, but there is always the credcheck.reset_superuser setting as
an emergency measure. I'd keep the password complexity settings and not
enable max_auth_failure at all, myself. Three strikes and you're out feels
pretty draconian. Is there a particular threat model that is driving that?

Cheers,
Greg