相关疑难解决方法(0)

在过去的一周里，我从各种中国 IP 地址获得了大量流量。此流量似乎来自普通人，他们的 HTTP 请求表明他们认为我是：

• Facebook
• 海盗湾
• 各种 BitTorrent 跟踪器，
• 色情网站

所有这些听起来都像是人们会使用 VPN 做的事情。或者让中国长城生气的事情。

用户代理包括网络浏览器、Android、iOS、FBiOSSDK、Bittorrent。IP 地址是普通的中国商业提供商。

如果主机不正确或用户代理明显错误，我让 Nginx 返回 444：

## Deny illegal Host headers
if ($host !~* ^({{ www_domain }})$ ) {
   return 444;
}
## block bad agents
if ($http_user_agent ~* FBiOSSDK|ExchangeWebServices|Bittorrent) {
    return 444;
}

我现在可以处理负载，但有一些高达 2k/分钟的突发。我想找出他们为什么来找我并阻止它。我们也有合法的 CN 流量，所以禁止 1/6 的地球不是一个选项。

它可能是恶意的甚至是个人的，但它可能只是那里配置错误的 DNS。

我的理论是它配置错误的 DNS 服务器或可能是人们用来绕过长城防火墙的某些 VPN 服务。

给定一个客户端 IP 地址：

183.36.131.137 - - [05/Jan/2015:04:44:12 -0500] "GET /announce?info_hash=%3E%F3%0B%907%7F%9D%E1%C1%CB%BAiF%D8C%DE%27vG%A9&peer_id=%2DSD0100%2D%96%8B%C0%3B%86n%8El%C5L%11%13&ip=183.36.131.137&port=11794&uploaded=4689970239&downloaded=4689970239&left=0&numwant=200&key=9085&compact=1 HTTP/1.0" 444 0 "-" "Bittorrent"

我可以知道：

descr:          CHINANET Guangdong …

我不知道以下日志是否与我的网站有时关闭有关。我的服务器上有很多网站，但它们没有任何类似以下的日志：

117.169.1.85 - - [03/Jan/2015:23:21:37 +0800] "GET /announce.php?info_hash=%D0%A2M%CE%13%21H%D4%11%0C%8C%27%22%C83%B4%A3l%92%15&peer_id=%2DSD0100%2D%C50%95xmh%9B%13%7C%D42%F7&ip=39.178.24.33&port=14940&uploaded=3893629&downloaded=3893629&left=1369695469&numwant=200&key=1490&compact=1 HTTP/1.1" 404 162 "-" "Bittorrent"
115.231.228.252 - - [03/Jan/2015:23:21:37 +0800] "GET /announce.php?info_hash=%DE%82%BC%CFBmH%29e%FD%25%ED6b%F2%2DX%EE%BE%21&peer_id=%2DSD0100%2D%BF3%DAG%83%1F%DAGnV%E3%C8&ip=118.134.134.210&port=13567&uploaded=675282944&downloaded=675282944&left=80740352&numwant=200&key=7916&compact=1 HTTP/1.0" 404 162 "-" "Bittorrent"
115.231.228.252 - - [03/Jan/2015:23:21:37 +0800] "GET /announce?info_hash=%DE%82%BC%CFBmH%29e%FD%25%ED6b%F2%2DX%EE%BE%21&peer_id=%2DSD0100%2D%BF3%DAG%83%1F%DAGnV%E3%C8&ip=118.134.134.210&port=13567&uploaded=675282944&downloaded=675282944&left=80740352&numwant=200&key=16205&compact=1 HTTP/1.0" 404 20283 "-" "Bittorrent"
123.123.126.154 - - [03/Jan/2015:23:21:37 +0800] "GET /announce.php?info_hash=%AA%21U%8F%7F%BA%DC%8F%D2%A5%B5A%7B%26t%F7%2A%FF%1E%8C&peer_id=%2DSD0100%2D%91%11%E7%11G%7B%8C%EB%14Y%2B%26&ip=123.123.126.154&port=12070&uploaded=129742857&downloaded=129742857&left=85310&numwant=200&key=11590&compact=1 HTTP/1.0" 404 162 "-" "Bittorrent"
114.86.129.8 - - [03/Jan/2015:23:21:37 +0800] "GET /announce.php?info_hash=%9A%90s%DCK%29%93%05%FE%BA%E6%D3%7D%03%12%25l%B0%B8k&peer_id=%2DSD0100%2D%20%80%3FRw%E5%0E%3D%3F%2F%B1%0F&ip=114.86.129.8&port=17767&uploaded=240822656&downloaded=240822656&left=480772096&numwant=200&key=5792&compact=1 HTTP/1.0" 404 162 "-" "Bittorrent"
222.161.198.228 - - [03/Jan/2015:23:21:38 +0800] "GET /announce.php?info_hash=f%F7x%23%A6w%96%955%E6T%09%3Br%DD%A5%F3%3D%A4%05&peer_id=%2DSD0100%2Dp%83%F6%00%E9%04B4%28%E5%F4%F8&ip=192.168.1.102&port=11274&uploaded=444858368&downloaded=444858368&left=181403648&numwant=200&key=17766&compact=1 HTTP/1.0" 404 162 "-" "Bittorrent"
117.140.8.11 - - [03/Jan/2015:23:21:38 +0800] "GET /announce?info_hash=%C7Jr%2F%E4%DF9%ECk%BA%88%94%7B%FF%8Ad%102%FA%5B&peer_id=%2DSD0100%2D%F6%F1%A1%A6%C9%01%DC%17%DC%AA%5D%19&ip=19.34.33.71&port=16456&uploaded=60373348&downloaded=60373348&left=1712431046&numwant=200&key=31414&compact=1 …