Re: Setting up security for development

From: Saul Lozano <lozano(dot)saul(at)gmail(dot)com>
To: Michael Swierczek <mike(dot)swierczek(at)gmail(dot)com>
Cc: Michael Gould <mgould(at)intermodalsoftwaresolutions(dot)net>, pgsql-novice(at)postgresql(dot)org
Subject: Re: Setting up security for development
Date: 2009-07-23 21:26:47
Message-ID: 4A68D597.9050502@gmail.com
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Hi Michael,

You are correct in you assesment regarding x.x.x.x/32

http://en.wikipedia.org/wiki/Classless_Inter-Domain_Routing

Best regards, Saul

Michael Swierczek wrote:
> I'm no expert, but I believe the format of your pg_hba.conf is wrong.
>
>
>>> # TYPE DATABASE USER CIDR-ADDRESS METHOD
>>>
>>> # IPv4 local connections:
>>> #host all all 127.0.0.1/32
>>> host all all 192.168.1.0/32 255.255.255.0 trust
>>> # IPv6 local connections:
>>> host all all ::1/128 md5
>>>
>>>
> The error is this
> host all all 192.168.1.0/32 255.255.255.0 trust
>
> I think you want
> 192.168.1.0/24 OR
> 192.168.1.0 255.255.255.0
>
> I don't know if specifying both would work.
> Also /32 means that all four groups of numbers must match, so you can
> only connect from the exact IP address 192.168.1.0.
> /8 means you can connect from 192.anything
> /16 means 192.168.anything
> /24 means 192.168.1.anything
> /32 means 192.168.1.0 exact match
>
> -Mike Swierczek
>
>

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