HI all, I have a client with staff member in China who has had consistent difficulty accessing our mail server, both using pop *and* the webmail client. Yet access from within NZ has been faultless. If anyone has had experience in this area, are there issues relating to the Chinese Authorities intercepting such communications, or would it be just to do with the connection? regards Gary Benner 123 Internet Ltd
On 18/01/06, Gary T. Benner wrote:
If anyone has had experience in this area, are there issues relating to the Chinese Authorities intercepting such communications, or would it be just to do with the connection?
Yes. It's called the Great Firewall of China. You'll find news on it on Google (unless you try to search for it from within China). Chinese authorities don't like their subjects to access dangerous content, like discussions on evil concepts like "Democracy" or "Religious Freedom".
Yes. It's called the Great Firewall of China. You'll find news on it on Google (unless you try to search for it from within China). Chinese authorities don't like their subjects to access dangerous content, like discussions on evil concepts like "Democracy" or "Religious Freedom".
If you really want to upset someone then tell him to tunnel his POP traffic over SSH :) --- James Tyson "Art -- is part of...who we are. It's part of...being human, Spock." http://helicopter.geek.nz/
I have used SIP phones in China and I can tell you that some of the firewalls are a lot more advanced than just blocking applications. I was able to place some types of calls via my USA DDI, while others were redirected to a local chinese gateway. Essentially that means that ALGs were inspecting the SIP invite messages ... quite interesting ... Turning on the SSL VPN made that problem go away ... --truman On 18/01/2006, at 5:02 PM, yuri wrote:
On 18/01/06, Gary T. Benner wrote:
If anyone has had experience in this area, are there issues relating to the Chinese Authorities intercepting such communications, or would it be just to do with the connection?
Yes. It's called the Great Firewall of China. You'll find news on it on Google (unless you try to search for it from within China). Chinese authorities don't like their subjects to access dangerous content, like discussions on evil concepts like "Democracy" or "Religious Freedom".
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On 17-Jan-2006, at 23:57, Truman Boyes wrote:
I have used SIP phones in China and I can tell you that some of the firewalls are a lot more advanced than just blocking applications. I was able to place some types of calls via my USA DDI, while others were redirected to a local chinese gateway. Essentially that means that ALGs were inspecting the SIP invite messages ... quite interesting ...
Presumably this is the difference between living in a region where the authorities are open about intercepting communications, in contrast to other places where communications are routinely intercepted in secret? Joe
Hi Gary, It's certainly possible. We've had a few such similar problems, a notable one also being with a New Zealand client with a Chinese branch office. For a long time we couldn't see how the authorities could have been consistently blocking both POP3 content downloaded from NZ to China and HTTP traffic from the webmail system, but we couldn't make it work reliably, and nobody in NZ was having any problems. If the person in China is relatively computer-savvy it would be worth walking them through the process of retrieving mail over ssh using putty or a similar program to see if that gets you any joy. I'm not sure how much this increases the likelihood of your staff member in China getting a visit from men in dark suits with sunglasses, but it seemed to do the trick for us. Can you be a bit more specific about what you mean when you say "consistent difficulty accessing our mail server"? Do you get a certain error message when connecting to POP3 or viewing webmail? Do emails just disappear en route from NZ to China and vice versa? Cheers, Erin
participants (7)
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Erin Salmon - Unleash -
Gary T. Benner -
James Clark -
James Tyson -
Joe Abley -
Truman Boyes -
yuri