My google-fu is failing me - I'm looking to find out which GeoIP service
Square uses, or a path to work through a GeoIP issue with them. A client of
ours uses Square and unfortunately one of the blocks (23.247.204.0/22) we
received at ARIN was at one time associated with France. As you can
We are pleased to announce that the Chicago Network Operators Group will
host their 11th annual conference (CHI-NOG 11) on May 11th, 2023 in
Chicago, IL. Stop by and see our great agenda.
Presentations
- Design and Implementation of the Illinois Express Quantum Metropolitan
Area Network by
On Fri, 21 Apr 2023 at 20:44, Jason Healy via NANOG wrote:
> This is not intended as snark: what do people recommend for IPv6? I try to
> maintain forward/reverse for all my server/infrastructure equipment. But
> clients? They're making up temporary addresses all day long. So far, I've
>
We actually manually list our customer ranges in pbl, or at least used to.
Probably something else that I need to check on.
On Fri, Apr 21, 2023, 8:04 AM Lukas Tribus wrote:
> Hello,
>
>
> without PTRs you will probably get your prefixes listed in things like
> Spamhouse PBL. So adding the
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Once upon a time, heasley said:
> I view complete DNS coverage to be a basic function. All used addresses
> should have forward and matching reverse records.
But why? It's not like anybody can trust what's in a reverse DNS
string, even if it has matching forward. If I'm looking for
> I view complete DNS coverage to be a basic function. All used addresses
> should have forward and matching reverse records.
This is not intended as snark: what do people recommend for IPv6? I try to
maintain forward/reverse for all my server/infrastructure equipment. But
clients? They're
Fri, Apr 21, 2023 at 07:37:49AM -0500, Chris Adams:
> Once upon a time, Forrest Christian (List Account)
> 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
> >
Hello,
without PTRs you will probably get your prefixes listed in things like
Spamhouse PBL. So adding the correct PTR for a mailserver may not be
enough, as services like that love to classify entire IP blocks. Of
course Spamhaus provides the tools to fix this issue. But what if
there are 4 - 5
On 4/21/23 14:37, Chris Adams wrote:
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)
-
On 4/21/23 15:02, Frank Habicht wrote:
I would say the absence of reverse DNS tells useful info to receiving
MTAs - to preferably not accept.
As does a randomly-generated one...
Mark.
On Fri, Apr 21, 2023 at 5:40 AM Chris Adams wrote:
> Once upon a time, Forrest Christian (List Account)
> 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
> >
On 21/04/2023 15:37, Chris Adams wrote:
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)
-
Once upon a time, Forrest Christian (List Account) 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
> On Apr 21, 2023, at 11:38 AM, Forrest Christian (List Account)
> wrote:
> What's the current thinking around reverse DNS on IPs used by typical
> residential/ small business customers?
> I'm not talking about reverse dns for infrastructure/router IPs here, as I
> still feel those need to
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.
Way way back in the day I used to generate "filler" reverse dns for all of
these ranges .. that is,
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