I live in college and I access internet through a local http proxy. I want to access internet through external http/SOCKS5 proxies which are freely available. How to configure Firefox to do that?


My_comp <-->local http_proxy <--> external http_proxy <--> internet

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  • is it mandatory to use local proxy for you to access the internet? – lavish Mar 3 '15 at 13:46

One way to access an External Proxy behind an Internal proxy is to SSH External Proxy (if remote SSH enabled) and bind the connection to a specific port in your system. Thereafter, use the port and as Network Options (Socks5) for Firefox.

If the system you've is Linux, type in Terminal ssh -D Port_no user@server_address server_port, where,

  • Port_no is the binding port you can select for the system, try a port greater than 1024;
  • user is the username provided by external proxy;
  • server_address is the IP address of the external proxy;
  • server_port is the port where the Server is receiving the SSH connection;

For Windows,many prefer Putty, but I would not be able to assure how it will work.

About Putty : PuTTY is an SSH and telnet client, developed originally by Simon Tatham for the Windows platform.

Link for Putty : Here.

  • thanks Firelord! Is there any other method than this because proxy servers usually dont give such access. – Krishna Chaitanya Kodur Mar 3 '15 at 18:03
  • @KrishnaChaitanyaKodur I was thinking do you want access to a personal choice of External Proxy or else, VPN and TOR wouldn't do any bad? Otherwise, I'll try looking for such answer. – Firelord Mar 3 '15 at 18:05
  • Have you tried this? This talks about HTTP Tunneling, which we need here to achieve the goal. – Firelord Mar 3 '15 at 18:13
  • This is the closest I can get of right now. Its about the usage of HTTpTunnel tool which possibly can help you to tunnel your system right to external proxy. – Firelord Mar 3 '15 at 18:21
  • i dont want to use TOR or VPN. and the above mentioned solutions were quite useful for me. For now i think the problem is solved by your solution. Thank you ! But if you can find a solution in which there is no need of http-tunnel server outside the firewall it would be very grateful! what i exactly need is as i asked in the question with minimal or no extra installation of any softwares – Krishna Chaitanya Kodur Mar 4 '15 at 10:01

Without access to your university proxy configuration, I don't think it would be easy. You need to install a local proxy, that would chain to your external proxy, while passing all the data through your network proxy. I only know that you can do something similar with Tor (configure your browser to use Tor, configure Tor to use your proxy and a relay), but none of the most popular proxies (ie, Squid or Privoxy) does this.

  • thanks Braiam! Yup! i know tor! b.t i want specifically the connection configuration i asked in the question. above – Krishna Chaitanya Kodur Mar 3 '15 at 18:00

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