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Re: Configure foreign host for PostgreSQL 8.0.3 on WindowsXP

From: "Magnus Hagander" <mha(at)sollentuna(dot)net>
To: "Todd Rockhold" <toduro(at)gmail(dot)com>, <pgsql-admin(at)postgresql(dot)org>
Subject: Re: Configure foreign host for PostgreSQL 8.0.3 on WindowsXP
Date: 2005-09-28 08:14:11
Message-ID: 6BCB9D8A16AC4241919521715F4D8BCE6C7A0C@algol.sollentuna.se (view raw or flat)
Thread:
Lists: pgsql-admin
> Installed PostgreSQL 8.0.3 on WindowsXP.  Have not been able 
> to configure so that a client program running on a different 
> WindowsXP box can connect to the PostgreSQL database. 
> 
> As I understand the documentation, at least one of the 
> following configurations should work, but none do.  What have 
> I done wrong and how can I configure so that a connection can 
> be successfully made?
> 
> 
> 1) The postgresql.conf file has (with everything else being 
> the installation default values): 
> 
> listen_addresses = '*'
> 
> 2) None of the following configurations of the pg_hba.conf 
> file worked (the program runs on 192.168.2.120):
> 
> # IPv4 local connections:
> #host    all         all         127.0.0.1/32          md5
> host    all         all            192.168.2.120/24       md5
> 
> # IPv4 local connections:
> #host    all         all         127.0.0.1/32          md5
> host    all         all            192.168.2.120 
> 255.255.255.255       md5
> 
> # IPv4 local connections:
> host    all         all         127.0.0.1/32          md5
> host    all         all         192.168.2.120/24       md5
> 
> # IPv4 local connections:
> host    all         all         127.0.0.1/32          md5
> host    all         all            192.168.2.120 
> 255.255.255.255       md5
> 
> I have a Symantec personal firewall installed which I turned 
> off during testing. 
> 
> The program runs fine on localhost.
> 
> Am using the Npgsql .NET library.  The Npgsql.Npgsql.Open() 
> call throws an exception, the error text of which is 
> "System.Net.Sockets.SocketException: NO connection could be 
> made because the target machine actively refused it."

Check:
1) the listen_address='*' didn't "take". Make sure you remembered to
remove the comment sign (yup, i've seen that mistake manu times). Also,
you need to restart the service after you've changed that, perhaps you
forgot it?
2) Is there any chance that the postmaster is running on a non-default
port? Or that the client is connecting on a non-standard port?
3) Verify that the IP Npgsql connects to is correct. If you're using a
DNS name, make sure it resolves right.

If all those look right, run a "netstat -na" on the commandline and see
if there is a listener to port 5432 and what IP that one is bound to.

//Magnus

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Subject: database access queries
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Subject: Configure foreign host for PostgreSQL 8.0.3 on WindowsXP

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