I found the solution on Google groups:
http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&threadm=000c01c2
6356%24d9ad5d70%240100a8c0%40uz2.ca&rnum=19&prev=/groups%3Fq%3DDBD::pg%2Bcyg
win%2BPostgreSQL%26hl%3Den%26lr%3D%26ie%3DUTF-8%26oe%3DUTF-8%26start%3D10%26
sa%3DN
----- Original Message -----
From: "Andrew McMillan" <andrew@catalyst.net.nz>
To: "Ronald Schmidt" <ronaldws@software-path.com>
Cc: <pgsql-novice@postgresql.org>
Sent: Monday, February 03, 2003 2:13 PM
Subject: Re: [NOVICE] Can't connect to postgresql on win32 using Perl
> On Tue, 2003-02-04 at 03:24, Ronald Schmidt wrote:
> > As my original email stated, I have postmaster running as a service.
> > I have looked at all three of the files you mentioned and do not
> > understand why their default configurations would interfere with
> > connections from Perl DBI/DBD.
>
> pg_hba.conf defines the limitations to access and authenticate with the
> database - that's the most likely of the three to need editing in your
> case.
>
> I've never used the Windows version so I don't know if it supports local
> socket access, but for TCP access you need to ensure you are running
> PostgreSQL with the -i switch.
>
> Is there a Windows equivalent to "netstat"? You might check to see
> whether the DB is listening.
>
> Cheers,
> Andrew.
> --
> ---------------------------------------------------------------------
> Andrew @ Catalyst .Net.NZ Ltd, PO Box 11-053, Manners St, Wellington
> WEB: http://catalyst.net.nz/ PHYS: Level 2, 150-154 Willis St
> DDI: +64(4)916-7201 MOB: +64(21)635-694 OFFICE: +64(4)499-2267
> Survey for nothing with http://survey.net.nz/
> ---------------------------------------------------------------------
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 2: you can get off all lists at once with the unregister command
> (send "unregister YourEmailAddressHere" to majordomo@postgresql.org)
>
