Re: Username Translation Question

On Mon, Feb 07, 2011 at 05:39:36PM +0000, Paul wrote:
> On 07/02/2011 13:05, Simon Horman wrote:
> > On Mon, Feb 07, 2011 at 12:19:07PM +0000, Paul wrote:
> >> Hi
> >>
> >> I am not 100% sure this is possible with Perdition but if I explain what
> >> I need to do maybe someone could offer some advice.
> >>
> >> I am moving some customers from one POP server to another.
> >>
> >> The old POP server has usernames in the format
> >>
> >> "username"
> >>
> >> The new POP server uses the format
> >>
> >> "[email protected]"
> >>
> >> I have about 50 different domains on these servers with approx 1000
> >> users so I am trying to avoid getting all users to have to change there
> >> POP usernames
> >>
> >> I was hoping I could perform the translation with Perdition, i.e.
> >>
> >> 1. User pops with "username"
> >> 2. Perdition looks up username and uses "[email protected]" against
> >> the new server
> >>
> >> I was trying to use
> >>
> >> username:[email protected]@1.2.3.4
> >>
> >> (where 1.2.3.4 is the IP of the new POP server) in the pop map, but I
> >> dont think it is reading this correctly and is just using username see below
> >>
> >> Feb  7 12:18:20 paris perdition[5628]: Auth: 5.6.7.8->9.10.11.12
> >> user="paulh" passwd="XXXXXX" server="1.2.3.4" port="110" status="failed:
> >> Re-Authentication Failure"
> >>
> >> I would be very grateful for any advice/pointers.
> > Hi Paul,
> >
> > I believe that you can get what you are after by adding the
> > username_from_database option to your perdition configuration file (not the
> > popmap) or specifying --username_from_database on the command line.
> >
> > Also, depending on how many real-servers you have, you may find the POSIX
> > Regular Expression popmap useful for this kind of mapping. For example, it
> > would save you needing an entry per-user if they all map to the same
> > real-server and domain.
> >
> > # cat /etc/perdition/popmap.re
> > ([^@]*): [email protected]@10.10.10.1
> 
> Thanks Simon, that's fantastic, does exactly what I want, thanks for the 
> pointer to the .re file, its going to save me a lot of time!!

N.B: the text above does not reflect the default .re file,
I wrote that line while doing some testing yesterday evening.
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