China Telecom filtering nameservers
Our main nameservers are being filtered from networks managed by CHINANET, Data Communications Division, China Telecom All traffic from our nameservers (ICMP, DNS queries, etc) is being dropped. As a result, many websites and mail servers with DNS hosted on networks which connect via China Telecom are inaccessible to users from our network. Only the IP addresses of our main nameservers are filtered. I have contacted China Telecom at hostmaster@ns.chinanet.cn.net noc@cn.net about this problem, but have received no response. Does anyone know of any good contacts at China Telecom, or know if there's some explanation for this? -- Daniel Medina Columbia University
On Wed, Oct 22, 2003 at 02:57:55PM -0400, Daniel Medina wrote:
Our main nameservers are being filtered from networks managed by
CHINANET, Data Communications Division, China Telecom
All traffic from our nameservers (ICMP, DNS queries, etc) is being dropped. As a result, many websites and mail servers with DNS hosted on
This has been seen elsewhere too and contacting someone at chinanet has been difficult. Your DNS may be filtered if it supports recursive lookups from chinanet. Forgetting for a moment the potential problems with doing that, its been suggested that chinanet is filtering DNS as a means to prevent their users from pointing at your DNS to get to sites that they may deem inappropriate (censorship).
Does anyone know of any good contacts at China Telecom, or know if there's some explanation for this?
This is a problem. If you have someone on staff that can speak Chinese, that might be useful. I haven't heard of email to the public addresses resulting in any meaningful response. I can't point to a specific contact at the moment, but I have been peripherally involved in this problem and if something definitively useful comes out of it I can follow up with you in private email. John
On Wed, 22 Oct 2003, John Kristoff wrote:
This has been seen elsewhere too and contacting someone at chinanet has been difficult.
I actually found two helpful individuals via posting to this list. They both spoke english, and helped me out in finding out what was going on. China telecom has some US POPs, so they do have people in the US even.
Care to share what was going on? Was it really censorship or something more mundane and less offensive? Owen --On Wednesday, October 22, 2003 06:53:58 PM -0700 "Tom (UnitedLayer)" <tom@unitedlayer.com> wrote:
On Wed, 22 Oct 2003, John Kristoff wrote:
This has been seen elsewhere too and contacting someone at chinanet has been difficult.
I actually found two helpful individuals via posting to this list. They both spoke english, and helped me out in finding out what was going on.
China telecom has some US POPs, so they do have people in the US even.
On Wed, 22 Oct 2003, Tom (UnitedLayer) wrote:
On Wed, 22 Oct 2003, John Kristoff wrote:
This has been seen elsewhere too and contacting someone at chinanet has been difficult.
I actually found two helpful individuals via posting to this list. They both spoke english, and helped me out in finding out what was going on.
China telecom has some US POPs, so they do have people in the US even.
If I'm not mistaken, I think I even saw an office the other day on Herndon Parkway... Best Regards, Andy Walden -- PGP Key Available at http://www.tigerteam.net/andy/pgp
Gut instinct says that One Wilshire is their primary US PoP/peering/transit point: http://www.onewilshire.com/our_building/connectivity.htm
China telecom has some US POPs, so they do have people in the US even.
If I'm not mistaken, I think I even saw an office the other day on Herndon Parkway...
actually no. Joe can probably tell you more but they are peering at both Equinix-Los Angeles & PAIX-Palo Alto in California in addition to the carrier hotel on One Wilshire. -ren At 04:28 AM 10/23/2003 -0700, Eric Kuhnke wrote:
Gut instinct says that One Wilshire is their primary US PoP/peering/transit point:
http://www.onewilshire.com/our_building/connectivity.htm
China telecom has some US POPs, so they do have people in the US even.
If I'm not mistaken, I think I even saw an office the other day on Herndon Parkway...
participants (7)
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Andy Walden -
Daniel Medina -
Eric Kuhnke -
John Kristoff -
Owen DeLong -
ren -
Tom (UnitedLayer)