Andrew,

Though limited to 2 servers, you should check pgpool.

It can integrates with slony and load balance your queries in a way
that select queries are issued to both the master and slave; but
transactions and queries that can potentially (generally) modify the
DB are sent to the master (and slony makes the replica).

Google for pgpool and you'll find more info. If you have more than 2
servers, then pgpool is not your answer.

Best regards,
Manuel.

On 9/12/06, Andrew And <andcop2006 at gmail.com> wrote:
>
>
>  I am using Slony but I can not that users in slaves computers access my
> master, and I want that  the users commands can not  alter my master. How
> can I limit access of the users in slaves computers in Master db?
>
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