Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I am wonder a bit. I use openssh-clients-6.2p2-4.fc19.x86_64 on my Fedora 19. I set the environment variable through the console:

"export http_proxy=http://someproxy.officenetwork"

and in the same console I try to run the ssh client

"ssh user@home -p 443"

to connect to my box via ssh on port 443 (other ports are blocked and out of those free the 443 is the least suspicious :-)

But the ssh does not pick up the proxy from the environment variable (opposite to lynx, curl, yum...).

I know I could use a "corkscrew" or "netcast" to help me get the ssh connection through the office proxy but when using e.g.PuTTY or BitwiseSSH I simply specify the proxy server in the settings and everything works.

Which leads me to the question: does the OpenSSH support connecting through a local proxy natively or is it really necessary to use a workaround (corkscrew, nc...) / another client with native proxy support?

share|improve this question
    
The reason it doesn't work is that you are expecting SSH to look for / honor a setting for an HTTP proxy. save for the fact they they both run over TCP they are very different protocols .. –  Doon Aug 1 '13 at 11:21

1 Answer 1

up vote 0 down vote accepted

You can specify a proxy command to ssh, but it requires an external program such as connect or socat. Depending the one you have, you can use ssh this way :

ssh -o ProxyCommand="socat - PROXY:proxy.net:%h:%p,proxyport=8080" login@target

or

ssh -o ProxyCommand="connect -H proxy.net:8080 %h %p" login@target

replacing proxy.net and 8080 by the correct values for your proxy.

as an example, I usually set a bash alias :

alias sshProxy='ssh -o ProxyCommand="connect -H proxy.net:8080 %h %p"'
share|improve this answer
    
thank you, Levans! I have accepted your answer. Pls is the "alias" command reboot-persistent or do you put it in some init script? –  user2433984 Aug 1 '13 at 18:32
    
@user2433984 if you want to make it persistent, just put it in your ~/.bashrc. –  Levans Aug 1 '13 at 18:45

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.