Reverse DNS for eyeballs?

Fri Apr 21 15:31:12 UTC 2023

Fri, Apr 21, 2023 at 07:37:49AM -0500, Chris Adams:
> Once upon a time, Forrest Christian (List Account) <lists at packetflux.com> said:
> > I have a feeling that I might be stepping into a can of worms by asking
> > this,  but..
> > 
> > What's the current thinking around reverse DNS on IPs used by typical
> > residential/ small business customers.
> 
> I don't see any benefit to programmatically-generated reverse DNS.  I
> stopped setting it up a long time ago now.  Really, reverse DNS these
> days is mostly only useful for:
> 
> - mail servers (where it shows a modicum of control and clue)
> - infrastructure/router IPs (so mtr/traceroute can show useful info)

I view complete DNS coverage to be a basic function.  All used addresses
should have forward and matching reverse records.  This is not difficult
stuff.  Bonus points for including a clli code or similar indicating the
general location of use for uses like network device interfaces, commodity
end-users, etc; also not difficult stuff.

You are tracking your allocations, right?  Programmatically generating
your device configurations?  So, generate DNS from that same database(s).