On Tue, Mar 14, 2017 at 8:40 AM, Tom Lane <t...@sss.pgh.pa.us> wrote:
> Joe Conway <m...@joeconway.com> writes:
> > I was also thinking about that. Basically a primary method and a
> > fallback. If that were the case, a gradual transition could happen, and
> > if we want \password to enforce best practice it would be ok.
> Why exactly would anyone want "md5 only"? I should think that "scram
> only" is a sensible pg_hba setting, if the DBA feels that md5 is too
> insecure, but I do not see the point of "md5 only" in 2017. I think
> we should just start interpreting that as "md5 or better".
Without md5-only, a user who uses \password to change their password from a
newer client would lock themselves out of connecting again from older
clients. As a conscious decision (either of the DBA or the user) that
would be OK, but to have it happen by default would be unfortunate.