Re: Security choices...

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Philip Warner <pjw(at)rhyme(dot)com(dot)au>
Cc: Peter Eisentraut <peter_e(at)gmx(dot)net>, PostgreSQL Development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Security choices...
Date: 2000-08-05 03:13:23
Message-ID: 200008050313.XAA09719@candle.pha.pa.us
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> At 18:34 4/08/00 -0400, Bruce Momjian wrote:
> >[ Charset ISO-8859-1 unsupported, converting... ]
> >> Philip Warner writes:
> >>
> >> > Is there any reason that a security model does not exist for psql that
> >> > allows Unix user 'fred' to log in as PG user 'fred' with no password etc,
> >> > but any user trying to log on as someone other than themselves has to
> >> > provide a password?
> >>
> >> Short of someone sitting down and making it happen I don't see any. You'd
> >> only need to implement some sort of fall-through in `pg_hba.conf', which
> >> in my estimate can't be exceedingly hard.
> >
> >How do you know Fred is Fred without a password?
> >
>
> The idea was to apply only on the matchine on which the postmaster runs;
> then ideally you get the username of the client process. It's kind of like
> IDENT, except it works only for local connections, and asks for passwords
> for non-local connections.

I am not aware of any way to determine the PID at the other end of a
unix domain socket.

--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
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