C++ TinyWebServer 项目在云服务器上运行不了

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能正常./server 运行，但是浏览器上用服务器公网 Ip+9006 端口打不开，看了下云服务器安全组和防火墙 9006 端口都是开放的，但是浏览器上显示不了界面，telnet 测试了下 9006 端口连通性没问题，不知道怎么搞的。

Supplement 1 · Aug 21, 2022

尝试了下Telnet发请求直接返回error:

浏览器打开界面及日志如下：

字数限制想直接用图片，奈何SMMS抽风死活都是ECONNRESET 枯了

2022-08-21 12:29:25.646066 [info]: timer tick
2022-08-21 12:29:30.401103 [info]: deal with the client(103.xxx.xxx.xxx)
2022-08-21 12:29:30.401189 [info]: adjust timer once
2022-08-21 12:29:30.401374 [info]: GET / HTTP/1.1
2022-08-21 12:29:30.401403 [info]: Host: 47.xxx.xxx.xxx:9006
2022-08-21 12:29:30.401414 [info]: Connection: keep-alive
2022-08-21 12:29:30.401423 [info]: Cache-Control: max-age=0
2022-08-21 12:29:30.401432 [info]: oop!unknow header: Cache-Control: max-age=0
2022-08-21 12:29:30.401442 [info]: Upgrade-Insecure-Requests: 1
2022-08-21 12:29:30.401456 [info]: oop!unknow header: Upgrade-Insecure-Requests: 1
2022-08-21 12:29:30.401466 [info]: User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36
2022-08-21 12:29:30.401477 [info]: oop!unknow header: User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36
2022-08-21 12:29:30.401487 [info]: Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
2022-08-21 12:29:30.401501 [info]: oop!unknow header: Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9

Supplement 2 · Aug 21, 2022

2022-08-21 12:29:30.401510 [info]: Accept-Encoding: gzip, deflate
2022-08-21 12:29:30.401519 [info]: oop!unknow header: Accept-Encoding: gzip, deflate
2022-08-21 12:29:30.401532 [info]: Accept-Language: zh-CN,zh;q=0.9,en-US;q=0.8,en;q=0.7
2022-08-21 12:29:30.401540 [info]: oop!unknow header: Accept-Language: zh-CN,zh;q=0.9,en-US;q=0.8,en;q=0.7
2022-08-21 12:29:30.401573 [info]: deal with the client(103.xxx.xxx.xxx)
2022-08-21 12:29:30.401614 [info]: adjust timer once
2022-08-21 12:29:30.401698 [info]: close fd 16
2022-08-21 12:29:30.646123 [info]: timer tick

Supplement 3 · Sep 17, 2022

8.21: 问题解决。
把问题发给舍友帮忙测试服务器，发现除了 Chrome 以外的其他浏览器能够打开项目页面，才发现是 Chrome 缓存的问题，原理是一个地址如果几次都打不开就会被缓存记录，下次打开就会被直接重置，清空后页面就能正常显示了。

端口

服务器

连通性

浏览器

15 replies • 2022-08-22 15:43:05 +08:00

BrettD

Aug 20, 2022 via iPhone

Telnet 手敲一个 HTTP 请求看返回什么

Nemodontcry

Aug 21, 2022

"浏览器显示不了界面" 具体是报什么错？或者看一下 log ，看一下服务初始化有没有错误

SupperMary

Aug 21, 2022

云服务器自己访问自己看看， curl -v http://xxxxx 这样，如果能通应该是云服务器商直接拦截掉了

tracker647

Aug 21, 2022

@BrettD 尝试了下 Telnet 发请求直接返回 error:

tracker647

Aug 21, 2022

@SupperMary
curl 看起来能通。。似乎是云服务器拦截了那咋办

curl -v 47.xxx.xxx.xxx:9006
* Trying 47.xxx.xxx.xxx:9006..
* TCP_NODELAY set
* Connected to 47.xxx.xxx.xxx (47.xxx.xxx.xxx) port 9006 (#0)
> GET / HTTP/1.1
> Host: 47.xxx.xxx.xxx:9006
> User-Agent: curl/7.68.0
> Accept: */*
>
* Mark bundle as not supporting multiuse
< HTTP/1.1 200 OK
< Content-Length:586
< Connection:close
<
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>WebServer</title>
</head>
<body>
<br/>
<br/>
<div align="center"><font size="5"> <strong>欢迎访问</strong></font></div>
<br/>
<br/>
<form action="0" method="post">
<div align="center"><button type="submit">新用户</button></div>
</form>
<br/>
<form action="1" method="post">
<div align="center"><button type="submit" >已有账号</button></div>
</form>

</div>
</body>
</html>

* Closing connection 0

BrettD

Aug 21, 2022 via iPhone

在服务器本地请求 127.0.0.1:9006 试一下

tracker647

Aug 21, 2022

@Nemodontcry 附言有 log

Nemodontcry

Aug 21, 2022

@tracker647 看起来像是被云服务器拦了，再看看安全组策略？我之前在阿里云的服务器上跑过 TinyWebServer ，配置正确可以正常访问的

tracker647

Aug 21, 2022

@Nemodontcry
就定了一条 TCP ，不知道要不要订其他连接方式，但防火墙上看着 9006 端口 TCP 和 UDP 都好好的

![image-20220821145552008]( https://s2.loli.net/2022/08/21/iLvzWAG7EIKyk84.png)

![Snipaste_2022-08-21_15-10-14.jpg]( https://s2.loli.net/2022/08/21/7SaiQxLEnyWj5mF.jpg)