curl http 通过代理服务器连接到ftp URL

Question

I am trying to do ftp over http proxy. I read that it can be achieved by using http connect method.

So i ran curl command from command line.

curl -X CONNECT --url 'ftp://ftp.kernel.org:21' -x http ://proxy_server.com:80

This is the output i get

curl -v -X CONNECT ftp ://ftp.kernel.org:21 -x http ://proxy_server.com:80
* About to connect() to proxy proxy_server.com port 80 (#0)
*   Trying 100.173.137.101... connected
* Connected to proxy_server.com (100.173.137.101) port 80 (#0)
> CONNECT ftp://ftp.kernel.org:21 HTTP/1.1
> User-Agent: curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.14.0.0     zlib/1.2.3 libidn/1.18 libssh2/1.4.2
> Host: ftp.kernel.org:21
> Accept: */*
> Proxy-Connection: Keep-Alive
> 
* HTTP 1.0, assume close after body
< HTTP/1.0 200 Connection established
< 
220 Welcome to kernel.org

But when i enter the command 'user anonymous' or even 'help' command after this, i get no response from the server.

How to make this work?

Answer 1

Will work using this

Curl -x proxy_url -D- destination_url

Would give you the response of connecting destination through given proxy