Re: [Exim] Newbie SMTP/ISP-Problem ...

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Autor: Suresh Ramasubramanian
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A: James P. Roberts, Leonardo Boselli, exim-users
Assumpte: Re: [Exim] Newbie SMTP/ISP-Problem ...
punster@??? (James P. Roberts) writes:

> Reverse lookup need not be done in batches of 256. There are
> well-known (well, at least published) methods of setting up
> reverses for smaller blocks. See Bind 9 users group; Cricket Liu's
> DNS & Bind textbook, etc. But try explaining this to a big
> company that doesn't really care... (No kidding, I emailed them
> chapter and page number, and ISBN number of the textbook!)


Nice little set of hacks there - but I guess what doesn't fit into their DNS
provisioning system aint gonna happen, even though there is a way (aka 'vi')
to do it. Just not worth the hassle.

This way, with a sufficiently large pool of customer IPs, delegated all over
the place, one single $GENERATE is all they'll want or need to maintain for
PTR records, rather than sub-delegating /27 or smaller blocks and letting
you run your own rDNS.

You might decide to pay them extra so that they'll maintain PTR records on
their zonefiles for you.

    -srs