Fault caused by China's most bull wall firewall

Simply put under Ring Environment:

1. 1. I'm our the domain name is HK,

2. 2. I'm our all the machines are Hong Kong cloud host

DayThe director told me, "Xiao Xu, why this address can't be opened, I said impossible, then the director gaveme aURLAddress,LetI open it to see if I canenough access, I openedfoundas followsFigure 1-1:

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Figure 1-1

Next, openHair said test ringcan't open the border, Iof course.impossible, it must have beenStrong, wait a minute, and then wait a minute.Realwell, but again Ivisit thisan address,KnotFruitstillis aSample. (Becauseto beI'mourthe room is in Hong Kong, BigLand VisitHong Kong will come outnoweven, erwaswall of the problem. )

it just say Ming, I our the Nginx, PHP, MySQL did not exit abnormally, nor did it provide Access . Is that

1.2Problem Analysis

when when didn't care it a thing, I feel sure there is no problem, until the second boss said I open every 20 minutes to flash the app, ask iOS development, iOS gives the result is because of background reasons. That's the pot that's on my side. That's when I started to pay attention to the problem.

began to feel that it was the wall, but there is no real evidence, and later through the capture of the packet found, as long as the access to the address with the XX string, immediately be reset off,

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The problem is serious, and the cloud producers confirm that they have not made any restrictions, then only the great Firewall that is exported by Beijing (GFW) to be banned, the evidence is as follows:

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I see it here . The TTL in the normal packet is 136

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then the TTL in reset is 138 and 142

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1.3Solution Solutions

For business reasons, only in Beijing to build a load, to dispatch to the Hong Kong room, of course, this is only suitable for our company's business. If you are experiencing the same situation in other business, you may wish to discuss it in the comments below.

or join QQ Group: 471443208

This article is from "Liang Wai" blog, please be sure to keep this source http://liangweilinux.blog.51cto.com/8340258/1831854

China's most bull of the Great Firewall caused the failure