Re: Access SSH server via HTTP proxy

Doug wrote:
Hi,
My company doesn't allow any kind of connection to outside. The only
way you can have access to the internet is thru the company's HTTP
proxy. Other traffic (DNS included) is prohibited.
I have learned that you can access ssh server via http proxy. But when
I set it up in PUTTY (under Connection -> Proxy tab) looks like the
HTTP proxy detects I am trying to connect to SSH server. Thus it throws
service not allowed exception (error 403).
But if I try to change the port # of ssh server setting for PUTTY from
22 to 80 it throws this exception:
503: service unavailable.

So I wonder if I change my SSH server port to 8080 for example, will it
work for me?

Thanks guys


In order to access the web from work, do you have to enter the proxy
server's info into your browser's configuration? If not you may be
hitting a firewall restriction and not a proxy server issue at all. If
this is the case you just need to run your ssh server on a port that is
not blocked by the firewall and configure putty to connect to it
directly on that non-standard port. A few that would likely work are 80
(http), 443 (https), 8080-8089 (typical proxy server port #'s).
.

Relevant Pages

  • Re: HTTPS Using Web Proxy
    ... The ISA log displays the following on the error. ... HTTP Method = ... I created a HTPPS 444 protocol set to TCP port 444 and assigned it to my ... At first I was getting a error code: 502 Proxy Error and fixed that by ...
    (microsoft.public.isa)
  • Re: Access SSH server via HTTP proxy
    ... My company doesn't allow any kind of connection to outside. ... I have learned that you can access ssh server via http proxy. ...
    (comp.security.ssh)
  • Re: External IP address
    ... one attached to the NAT gateway. ... any) but will instead get you an ip given by your HTTP proxy -- ... My ISP decided to install a transparent proxy one day without telling ... querying via an alternate port which should solve the problem. ...
    (comp.lang.tcl)
  • Re: Access SSH server via HTTP proxy
    ... I do have to enter the proxy hostname and port in my browser. ... I have learned that you can access ssh server via http proxy. ... I set it up in PUTTY looks like the ...
    (comp.security.ssh)
  • RE: ServicePointManager does not support proxies of HTTPS scheme
    ... I think the term proxy is what is adding some confusion. ... There is an HTTP ... proxy server somewhere in your environment that is saying it will not pass ... the browser typically switches to port 443. ...
    (microsoft.public.dotnet.framework.webservices)