On 2024-12-16 09:17:25 -0500, Ron Johnson wrote:
> Local (socket-based) connections are typically peer-authenticated
> (meaning that authentication is handled by Linux pam).
^^^
Is it? I haven't checked the source code, but this doesn't seem
plausible. You can get the uid of a socket peer directly from the
kernel, which can be converted to a user name via getpwuid, and the
mapping to postgresql roles is done via pg_ident.conf. I see no role for
PAM in that path.
> Thus, if someone enters too many wrong passwords for a superuser
> account, you should still be able to locally connect to PG.
True. But the client may not be on the same machine.
hp
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