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From: Tom Lane <tgl@sss.pgh.pa.us>
To: secret <secret@kearneydev.com>
Cc: pgsql-interfaces@postgreSQL.org
Subject: Re: [INTERFACES] C API - Authentication Question
Date: Sat, 15 Aug 1998 11:00:24 -0400
Message-ID: <10030.903193224@sss.pgh.pa.us> (raw)
In-Reply-To: <35D4F5D8.A1A06901@kearneydev.com>

secret <secret@kearneydev.com> writes:
> ... How do I tell PostgreSQL what
> username:password to use to authenticate myself to the database?

PQsetdbLogin() or PQconnectdb().  Alternatively you can pass them in
as values of environment variables PGUSER and PGPASSWORD.  I don't
much like keeping a password in an environment variable on security
grounds, but this would work if you want to use some client program
that offers no convenient way to enter id/password.

It looks like the documentation is seriously lacking in this area:
the current libpq man page doesn't describe PQconnectdb() at all,
and the possibility to pass in a password via PGPASSWORD isn't mentioned
there either.  You'll get along with PostgreSQL a lot better if you
don't mind looking at code when you can't find something in the docs :-(

BTW you should also consider Kerberos authentication --- much more
secure than passing cleartext or trivially-encrypted passwords around
the net.

			regards, tom lane



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