关于代理

[swimmingchar]

您好，如果我要部署在一台内网服务器上，然后是通过squid代理出去的，我怎么加HTTP_PROXY？我不想加全局变量的方式添加啊

[trazfr]

Hello,

I don't speak Chinese, so I'm not sure I will correctly answer the question.
I have understood that you would like to connect through an HTTP Proxy like squid or other.

But I don't see the problem. Just using the environment variables http_proxy and https_proxy seems to work.
Like any Go program using the net/http lib, it does support those environment variables.

As an example I will do like this.
Beware: this is only for illustration purpose. Directly connecting in plain HTTP over the Internet is insecure.

 tcp over ws client      proxy server                         tcp over ws server               tcp over ws server
+------------------+    +-------------------------------+    +---------------------------+    +--------+
| netcat           | -> | http://proxy.example.com:8899 | -> | ws://tow.example.com:8080 | -> | netcat |
+------------------+    +-------------------------------+    +---------------------------+    +--------+

• On the tcp over ws server. Start a dummy TCP server:

  echo 'hello from remote' | nc -l -p 5678

• On the tcp over ws server. The server DNS is tow.example.com:

  ./tcp-over-websocket server -listen_ws 0.0.0.0:8080 -connect_tcp 127.0.0.1:5678

• On the proxy server (I don't have any Squid, but I use proxy.py for this example). The server DNS is proxy.example.com in this example:

  python -m venv ./venv
  ./venv/bin/pip install proxy.py
  ./venv/bin/proxy --hostname 0.0.0.0 --port 8899

• On tcp over ws client:

  # for ws://
  export http_proxy=http://proxy.example.com:8899
  # for wss://
  export https_proxy=http://proxy.example.com:8899
  ./tcp-over-websocket client -listen_tcp 127.0.0.1:1234 -connect_ws ws://tow.example.com:8080

• On tcp over ws client:

  echo 'hello from local' | nc 127.0.0.1:1234
  # we print in the console:
  # - "hello from remote" on the tcp over ws client
  # - "hello from local" on the tcp over ws server

It worked like this.

Could you please describe with more details your issue in English?

[swimmingchar]

Thank you very much for your detailed instructions.
I originally planned to change the data transfer between zabbix_proxy and zabbix_server from TCP to HTTP.
At present, the program has been written through the introduction of the TCP communication method on the Zabbix official website.
I'm very sorry, I just saw your description now, I will set up an environment to verify it.
Thanks again very much.