这是一些信息：
2017-11-20 09:05:00 SERVER -> CLIENT: 220 smtp.gmail.com ESMTP z7sm6797750qtz.40 - gsmtp
2017-11-20 09:05:00 CLIENT -> SERVER: EHLO www.trueniu.com
2017-11-20 09:05:00 SERVER -> CLIENT: 250-smtp.gmail.com at your service, [54.172.19.40]
250-SIZE 35882577
250-8BITMIME
250-AUTH LOGIN PLAIN XOAUTH2 PLAIN-CLIENTTOKEN OAUTHBEARER XOAUTH
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-CHUNKING
250 SMTPUTF8
2017-11-20 09:05:00 CLIENT -> SERVER: AUTH LOGIN
2017-11-20 09:05:00 SERVER -> CLIENT: 334 VXNlcm5hbWU6
2017-11-20 09:05:00 CLIENT -> SERVER: czYwOTkyNjIwMkBnbWFpbC5jb20=
2017-11-20 09:05:00 SERVER -> CLIENT: 334 UGFzc3dvcmQ6
2017-11-20 09:05:00 CLIENT -> SERVER: U3gxOTkyMTEyOSFAIw==
2017-11-20 09:05:01 SERVER -> CLIENT: 534-5.7.14 <https://accounts.google.com/signin/continue?sarp=1&scc=1&plt=AKgnsbur
534-5.7.14 S_l4jy-EJKrK2IupSssBOYwZxRzVjqeSGKl0zGfsV_yiLTfQvDOhAWkMDVSsro03uALvef
534-5.7.14 Q0nDJO07pej2wkUtbyVNPtMtBGdWUJTj0aGgDs9hv-Hv8bea3HfMAl0iq5jOw9u5Z4wP4d
534-5.7.14 9UkmIkgLjY-DmS3BF-fCdXZ3Y2pq6mYisBsOkGY5tVFIkhJ218EUXlvtu02SHRFpXdJXe7
534-5.7.14 FnDUtB8ofSuAZdrWEtRK0k9gJbpGU> Please log in via your web browser and
534-5.7.14 then try again.
534-5.7.14 Learn more at
534 5.7.14 https://support.google.com/mail/answer/78754 z7sm6797750qtz.40 - gsmtp
2017-11-20 09:05:01 SMTP ERROR: Password command failed: 534-5.7.14 <https://accounts.google.com/signin/continue?sarp=1&scc=1&plt=AKgnsbur
534-5.7.14 S_l4jy-EJKrK2IupSssBOYwZxRzVjqeSGKl0zGfsV_yiLTfQvDOhAWkMDVSsro03uALvef
534-5.7.14 Q0nDJO07pej2wkUtbyVNPtMtBGdWUJTj0aGgDs9hv-Hv8bea3HfMAl0iq5jOw9u5Z4wP4d
534-5.7.14 9UkmIkgLjY-DmS3BF-fCdXZ3Y2pq6mYisBsOkGY5tVFIkhJ218EUXlvtu02SHRFpXdJXe7
534-5.7.14 FnDUtB8ofSuAZdrWEtRK0k9gJbpGU> Please log in via your web browser and
534-5.7.14 then try again.
534-5.7.14 Learn more at
534 5.7.14 https://support.google.com/mail/answer/78754 z7sm6797750qtz.40 - gsmtp
2017-11-20 09:05:01 SMTP Error: Could not authenticate.
2017-11-20 09:05:01 CLIENT -> SERVER: QUIT
2017-11-20 09:05:01 SERVER -> CLIENT: 221 2.0.0 closing connection z7sm6797750qtz.40 - gsmtp
2017-11-20 09:05:01 SMTP Error: Could not authenticate.

哦，对了，我这是香港节点的服务器，2 核 4G，10M 带宽，，据客服说到国内是 10%的带宽。。

@gstqc
刚刚 ab 测试了下，并发 100，1000 次访问的数据如下：

```
[root@VM_23_169_centos ~]# ab -n 1000 -c 100 http://eladxxxxxxxxxm/
This is ApacheBench, Version 2.3 <$Revision: 655654 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking eladeanode.trueniu.com (be patient)
Completed 100 requests
Completed 200 requests
Completed 300 requests
Completed 400 requests
Completed 500 requests
Completed 600 requests
Completed 700 requests
Completed 800 requests
Completed 900 requests
Completed 1000 requests
Finished 1000 requests


Server Software: nginx/1.9.9
Server Hostname: eladeanode.trueniu.com
Server Port: 80

Document Path: /
Document Length: 60888 bytes

Concurrency Level: 100
Time taken for tests: 300.551 seconds
Complete requests: 1000
Failed requests: 499
(Connect: 0, Receive: 0, Length: 499, Exceptions: 0)
Write errors: 0
Total transferred: 61788973 bytes
HTML transferred: 61491379 bytes
Requests per second: 3.33 [#/sec] (mean)
Time per request: 30055.138 [ms] (mean)
Time per request: 300.551 [ms] (mean, across all concurrent requests)
Transfer rate: 200.77 [Kbytes/sec] received

Connection Times (ms)
min mean[+/-sd] median max
Connect: 49 966 902.7 716 7084
Processing: 1289 26399 21672.7 23701 83029
Waiting: 462 22630 22199.1 13952 80911
Total: 1343 27364 21651.8 23830 83341

Percentage of the requests served within a certain time (ms)
50% 23830
66% 45242
75% 48600
80% 50180
90% 54099
95% 55818
98% 58098
99% 63462
100% 83341 (longest request)
```

速度感人，，，我把火狐更新到最高版并把玩了一会还在测试，，哈哈，，，求解这个反向代理怎么拯救。。。

@iamdsy。。。。我忘说了一个重要的信息，，代理的不仅有美东的资源，还有 AWS 尚 S3 的图片等资源。。。

我没看懂为何加了 B 服务器就访问不了 a、b 子域名了，，，，

看看去腊了没，，有些内存上面涂腊了

报价不超过 1000 吧，，

@chairuosen 也是使用 zipArchive 来打包输出吗？

所以，最后一张图是关键？

晚睡不是可以吹嘘的本事，也可能是你的能力不够！！！

@wzdbsss 是个办法。。

@ToughGuy
你确定替换成功的是 POST 请求返回的 json 串里的内容吗？

@ToughGuy
sub_filter 不行的，我写成这样：
sub_filter_types *；

然后查看效果是无效的。

@safeoy
@tomczhen
求解 openresty 怎么实现我这个需求。

@defunct9
亲测无效，以下是我的配置：
subs_filter 's3.amazonaws.com/adwords.yesssbi.com' 'elasnode.trudsiu.com' gi;
subs_filter_types application/json;

@defunct9 我试着安装一下这个第三方模块测试一下吧，，

@defunct9 subs_filter 可以实现吗？感觉和 sub_filter 没啥区别啊，，

@tomczhen 这个可以实现吗？

@rrfeng 你的意思是使用 sub_filter 和正则结合实现替换的目的？