DNS wierdness and cox communications

[Patrick Fleming, EA]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

The recent DNS fix forcing port randomization can also be a culprit.

Matrix Mole wrote:
| I'd say it's guaranteed cox. I'm having exact same problems and cox is
| the only provider involved. I've a fried who lives about two streets
| over from me, again having the same problems. Unfortunately, I've
| called cox and they basically are telling me it's my computer (all 7
| of them in my house) that are at fault, cause nothing on their network
| could cause that behavior. When I mentioned to them that others I've
| heard of were having these problems they were like "Oh, if that were
| the case we'd have a lot more calls, and we don't" then they dismissed
| me. I'm calling back tomorrow and going to talk to a manager and see
| if maybe I can get someone to accept they've screwed something up in
| their network and need to fix it.
|
| On Mon, Aug 11, 2008 at 4:56 AM, Technomage Hawke
| <technomage.hawke at gmail.com> wrote:
|> yeah... could be just my connection..... in diverse places on cox (and
|> from what I see, also on qwest). someone suggested a possible routing
|> issue as well (more than likely the case).
|>
|> one other possible thought, the root DNS servers may not be accepting
|> connections from jus "anybody".
|>
|> ASU's DNS servers are actually located within the qwest ip space.
|>
|> I have tried other DNS servers with variable results. I might have to
|> break out wireshark and see if I am getting connection resets on that
|> port. and run some tests with my clients over this week.
|>
|> anyway, I don't have enough available info to call it as a cox or a
|> qwest specific issue.
|>
|>
|> On 8/10/08, James Mcphee <jmcphe at gmail.com> wrote:
|>> If you're experiencing issues, then set up a job to query Cox and
Qwest's
|>> and whoever's DNS servers at the same time and log it.  See if
you're seeing
|>> a trend.  It could just be your connection.
|>>
|>>
|>> On Sun, Aug 10, 2008 at 12:07 AM, Craig White <craigwhite at azapple.com>
|>> wrote:
|>>> On Sat, 2008-08-09 at 23:39 -0700, Technomage Hawke wrote:
|>>>> Over the last few weeks, I have noticed an increasing number of
|>>>> customer calls about network outages. Now on the surface, this might
|>>>> not seem all that relevant, However, these issues are not just windows
|>>>> centric.
|>>>>
|>>>> I have discovered a pattern to the outage problems I have been
|>>>> troubleshooting. it seems that cox is filtering dns traffic to anyone
|>>>> outside their own ip space. any attempt to use a DNS root server or
|>>>> even the ASUdns servers results in many pages not being resolved. as
|>>>> soon as I set for the cox dns servers, all seems to work again.
|>>>>
|>>>> anyone else noticing this "filtering" on cox's part?
|>>> ----
|>>> no - it makes no sense, you can always test your theory out at any time
|>>> you want by running commands such as dig and host and if you really
|>>> care, you could run your own caching dns server which would obviously
|>>> need to access other dns servers to be worthwhile.
|>>>
|>>> Craig
|>>>
|>>>
|>>>
|>>>
|>>> ---------------------------------------------------
|>>> PLUG-discuss mailing list -
|>> PLUG-discuss at lists.plug.phoenix.az.us
|>>> To subscribe, unsubscribe, or to change your mail settings:
|>>>
|>> http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss
|>>
|>>
|>> --
|>> James McPhee
|>> jmcphe at gmail.com
|>>
|>> ---------------------------------------------------
|>>  PLUG-discuss mailing list -
|>> PLUG-discuss at lists.plug.phoenix.az.us
|>>  To subscribe, unsubscribe, or to change your mail settings:
|>> http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss
|>>
|> ---------------------------------------------------
|> PLUG-discuss mailing list - PLUG-discuss at lists.plug.phoenix.az.us
|> To subscribe, unsubscribe, or to change your mail settings:
|> http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss
|>
| ---------------------------------------------------
| PLUG-discuss mailing list - PLUG-discuss at lists.plug.phoenix.az.us
| To subscribe, unsubscribe, or to change your mail settings:
| http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss
|
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (Cygwin)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iEYEARECAAYFAkikTZ4ACgkQIFnqWH4u/3OFPQCfYfh/ahJFU5+pZ0VaehSLAHtR
QUoAnjs+nEV/eAS2h150Y5Fy1ALE70EZ
=RMKX
-----END PGP SIGNATURE-----