有用 frp 的吗，请教个问题

[ProjectSky]

这两天被这个 frp 转发问题搞的头大了。

手头有两台云服务器，一台腾讯云，一台阿里云，阿里云使用 frps，frpc 连接后没有任何问题，https 页面可以正常打开。

但是腾讯云同样的 frps 和客户端的 frpc 配置，只能访问 http 端口，不能访问 https 端口，后台也可以看到 frpc 访问的日志，但是就是不能打开 https 页面。

• frps 日志

[https] join connections, workConn(l[172.27.0.16:7000] r[x.x.x.x:40688]) userConn(l[172.27.0.16:443] r[x.x.x.x:51612])

但是我发现腾讯云本机可以正常访问 https 服务，外部就是不行，端口已经全部打开了。

• 本机访问 fprs 日志

[proxy.go:221] [78a21caf9e2b36d8] [https] join connections, workConn(l[172.27.0.16:7000] r[x.x.x.x:39712]) userConn(l[172.27.0.16:443] r[x.x.x.x:52728])

• 腾讯云本机访问 curl -vv

* Rebuilt URL to: https://x.x.x/
*   Trying x.x.x.x...
* TCP_NODELAY set
* Connected to x.x.x (x.x.x.x) port 443 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* successfully set certificate verify locations:
*   CAfile: /etc/ssl/certs/ca-certificates.crt
  CApath: /etc/ssl/certs
* TLSv1.2 (OUT), TLS handshake, Client hello (1):
* TLSv1.2 (IN), TLS handshake, Server hello (2):
* TLSv1.2 (IN), TLS handshake, Certificate (11):
* TLSv1.2 (IN), TLS handshake, Server key exchange (12):
* TLSv1.2 (IN), TLS handshake, Server finished (14):
* TLSv1.2 (OUT), TLS handshake, Client key exchange (16):
* TLSv1.2 (OUT), TLS change cipher, Client hello (1):
* TLSv1.2 (OUT), TLS handshake, Finished (20):
* TLSv1.2 (IN), TLS handshake, Finished (20):
* SSL connection using TLSv1.2 / ECDHE-RSA-AES256-GCM-SHA384
* ALPN, server accepted to use h2
* Server certificate:
*  subject: CN=x.x
*  start date: Jun  5 21:49:41 2019 GMT
*  expire date: Sep  3 21:49:41 2019 GMT
*  subjectAltName: host "x.x.x" matched cert's "*.x.x"
*  issuer: C=US; O=Let's Encrypt; CN=Let's Encrypt Authority X3
*  SSL certificate verify ok.
* Using HTTP2, server supports multi-use
* Connection state changed (HTTP/2 confirmed)
* Copying HTTP/2 data in stream buffer to connection buffer after upgrade: len=0
* Using Stream ID: 1 (easy handle 0x5559f69468e0)
> GET / HTTP/2
> Host: x.x.x
> User-Agent: curl/7.58.0
> Accept: */*

• 外部访问 curl -vv

* Rebuilt URL to: https://x.x.x/
*   Trying x.x.x.x...
* TCP_NODELAY set
* Connected to x.x.x (x.x.x.x) port 443 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* successfully set certificate verify locations:
*   CAfile: /etc/ssl/certs/ca-certificates.crt
  CApath: /etc/ssl/certs
* (304) (OUT), TLS handshake, Client hello (1):
* OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to x.x.x:443
* stopped the pause stream!
* Closing connection 0
curl: (35) OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to x.x.x:443

• frpc.ini

[common]
server_addr = x.x.x.x
server_port = 7000
token = xxxxxxx

[https]
type = https
local_port = 666 ;
custom_domains = x.x.x

• frps.ini

[common]
bind_port = 7000
vhost_https_port = 443
vhost_http_port = 80
token = xxxxxxx
log_file = /var/log/frp/frps.log
log_level = debug
log_max_days = 3

[chinesestudio]

我没细想 多数端口占用 冲突咯

[chinesestudio]

正确的是 nginx 监听 80 443 后端转发 你 frps 监听 443 那 https 怎么打开 443

[enng]

最简单的是 frp 只映射 tcp 端口，然后用 nginx 做反代。

[ProjectSky]

@enng 测试多次，发现好像是腾讯云把 443 端口给阻断了，所以才会出现内部通外部不通的问题。主机刚开通的时候是可以正常使用的，大概一天之后就不能使用了。

[ProjectSky]

找到原因了，是域名备案的原因，没想到 443 端口也要备案了，不备案的域名走 443 或者 80 会被腾讯阻断。

[ODD10]

我腾讯云 frp https 可以，https 是 nginx 服务

[ODD10]

嗯，备案了的域名

[qa2080639]

@ProjectSky 没在腾讯云备案的域名 我这加 https 能绕过

[ProjectSky]

@qa2080639
@ODD10
用 curl -vv https://腾讯云外网 IP 是可以得到正确返回信息的，用域名就不行了。
找到原因就不折腾了，其实就是刚开始搞不懂相同的环境怎么就出问题了，挨个排查没想到是外部原因。