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From: Guillaume Lelarge <guillaume@lelarge.info>
To: Jaroslav Záruba <jaroslav.zaruba@gmail.com>
Cc: PostgreSQL - mailing list <pgsql-admin@postgresql.org>
Subject: Re: Why pg_dump 'trust' authentication fails under root and works under another user?
Date: Thu, 24 Mar 2011 11:25:13 +0100
Message-ID: <4D8B1C09.4050609@lelarge.info> (raw)
In-Reply-To: <AANLkTindQcU+LEoVOfkn2-AtTE=8fzPS746RTDdQDuNS@mail.gmail.com>
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Le 24/03/2011 10:39, Jaroslav Záruba a écrit :
> The command line is still the same, when executed under one user it does not
> ask for password, when executed under another (root that is) it does:
> pg_dump --ignore-version --host=localhost --port=5432 --username=postgres
> --file="$BACKUP_FILE" --format=p --column-inserts --encoding=UTF-8 db123
> 

The "--host=localhost" option says you're using TCP/IP connection (so
the "host lines" of pg_hba.conf), so it's asking for md5 authentication.
Hence the password.

If one user is not asked for a password, it could be that this user has
a .pgpass file telling pg_dump which password to use.


-- 
Guillaume
 http://www.postgresql.fr
 http://dalibo.com



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