Date: Sat, 21 Jan 2006 00:11:51 -0400 (AST)
From: "Marc G. Fournier" <scrappy@postgresql.org>
To: Magnus Hagander <mha@sollentuna.net>
cc: Larry Rosenman <ler@lerctr.org>, pgsql-www@postgresql.org
Subject: Re: DNS: mirrors?
In-Reply-To: <6BCB9D8A16AC4241919521715F4D8BCE92E9E3@algol.sollentuna.se>
Message-ID: <20060121000632.A98693@ganymede.hub.org>
References: <6BCB9D8A16AC4241919521715F4D8BCE92E9E3@algol.sollentuna.se>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed

On Fri, 20 Jan 2006, Magnus Hagander wrote:

>> Jan 20 15:18:30 lerami named[1409]: zone
>> mirrors.postgresql.org/IN: refused notify from non-master:
>> 200.46.204.2#2867
>
> That, however, is wrong. I don't know why neptune is sending out
> notifies - it's not the master. It's not even a slave for that zone!
>
> Also, I ran my test script. Seems there are problems with several of the
> listed nameservers!
>
> We have the following servers:
> ns.hub.org          | 200.46.204.2
> ns2.hub.org         | 66.98.250.36
> ns3.hub.org         | 200.46.204.4
> ns-a.lerctr.org     | 192.147.25.11
> ns-b.lerctr.org     | 192.147.25.45
> ns1.pgadmin.org     | 194.217.48.34
> ns2.pgadmin.org     | 81.187.210.23
>
>
> Of these we have:
> ns1.pgadmin.org and ns2.pgadmin.org - don't resolve at all. Changed or
> should be removed?

'k, where are ns{1,2}.pgadmin.org being used?

> ns.hub.org - now has a different IP? But something is answering on the
> listed one? And it's the old one that sends notifies? Which one is
> right?
>
> ns3.hub.org - now has a different IP? Nothing answering on specified IP.
>
> This means that more than half the DNS servers have changed since this
> system was set up (and that was just a year ago! DNS servers are
> supposed to be stable :P), and not one of the changes were reported
> here... (Or if they were, nobody made sure the system was updated. But
> I'm fairly certain I haven't heard anything about it)
>
> Anyway. If I can get confirmation on how the above is supposed to be,
> I'll fix it up ASAP.

'k, I just did a major overhaul of our DNS this month ... 200.46.204.2 was 
getting overloaded, and there was no easy way to move things around, so I 
put the DNS servers on a floating IP (the IP doesn't change, it can just 
float between servers) instead of tying it to a specific server ...

So, the IPs should all be:

   ?column?   |      data
-------------+----------------
  ns4.hub.org | 200.46.208.251
  ns.hub.org  | 200.46.204.13
  ns2.hub.org | 66.98.250.36
  ns3.hub.org | 200.46.204.254
(4 rows)

Everything is in a bind-dlz database right now (except postgresql.org 
itself, since I haven't quite figured out a clean way of doing that yet, 
since its generated based on other data sources) ...

Primaary is 200.46.204.13, as the others are all slony slaves from it ...


----
Marc G. Fournier           Hub.Org Networking Services (http://www.hub.org)
Email: scrappy@hub.org           Yahoo!: yscrappy              ICQ: 7615664