SSH via HTTP Proxy · DIGIT-ARC

I need to access ssh via an http proxy. We use an automatic proxy configuration url (pac file) for browsers. Any idea how to use it for ssh?

AFAIK, HTTP proxy is only for port 80.. You cannot access SSH through it..

I can. That is what port tunnelling is for.

But my problem is, here i don't have the proxy address and port, what i have is a pac (proxy automatic config file). I don't know how to tackle it.

IE proxy url configuration: *localhost

ort/proxy.pac or something similar.

I need to configure ssh using a pac file.

And what is IE doing in middle. Did i mentioned it somewhere ?

Hmm.. I'd like to know more about port tunneling! Please temme when you have time

I have forgoten about port tunneling, but there r certain sites that allow u to have shell window in the browser. So if u visit such sites via proxy, then may be u can get ssh there!

@kalpik: not a problem. But you can google for more details. I'm not that an expert in it.

Now my scenario is something like this.

My company have a corporate firewall which blocks all ports other than 80 (http)
I want to use ssh which uses port 22, and for the same reason i cannot.
So what i need to do is to tell ssh to go through the http proxy (using port 80). This is easy if i have a proxy address, a username and a password. But my company is using a pac file for automatic proxy configuration. I don't know how to use this with ssh.

Any clues?

Try downloading the pac by entering its URL in a browser window. Open it in Notepad, and you should get all your server and port details.

@desertwind ............m also behind proxy ....i know proxy address and have user name & password also.....so can u plz tell me how to do it......wat r d possibilities of using SSH?????

Thanks a lot Fatbeing for pointing that out.

@uchiha.sasuke

1. install corkscrew

2. Edit .ssh/config file in your home folder and add the following line

Code:

Host *
  ProxyCommand corkscrew http-proxy.example.com 8080 %h %p auth_file

Replace http-proxy.example.com with your actual proxy and 8080 with port.

3. create a file auth_file and put in your username and password to proxy as follows

Code:

username:password

Thats it.

Are you trying to set up a host or client? ssh listens on port 22, so the host should be able to use it. I've accessed a friend's computer outside my residential gateway when I can't use port 22 but he can, so he was host. It should be possible to change this as well, but I haven't found out how yet. So are you server or client?

I'm a client trying to access some other server through ssh.

first of all thanx for ur quick response......

now actually i want to conform that ,,,,,for using ssh as a client on pc ,do i have to install ssh in some pc outside my proxy server ???or is there ne way to pypass proxy through some other means???

desertwind said:
I'm a client trying to access some other server through ssh.

try wpc3015.amenworld.com to acess vis ssh

^^^
WTF. It redirected me to KProxy website. What does an anonymous proxy has to do here?
__________

uchiha.sasuke said:
first of all thanx for ur quick response......

now actually i want to conform that ,,,,,for using ssh as a client on pc ,do i have to install ssh in some pc outside my proxy server ???or is there ne way to pypass proxy through some other means???

I don't think you can byepass proxy. What i'm trying to tunnel it through http proxy, since http port is the only open one (it usually will be in corporate firewalls).

ok......... thanx for that info....

There are some dedicated tools to tunnel through an http proxy. I used htc/hts, there probably are others.

htc -P <address-of-proxy>:<proxy-port> -F 80 <IP-of destination>:80
ssh -p 80 username@name-of-host

You'll have to get hts to listen on the host computer. I don't know if your proxy has a password, if it does I'll have to change that a bit.