Networking :: Accessing External SSH From A PC With Only Port 80 Access

I work for a company who has a really closed proxy configuration, and I think that only the port 80 is opened, but with a lot of blocked sites.

I guess that for other cases, like bank sites and others, they opened the 443 port too. But other ports are all closed.

I set up a linux server at home, and I need to access it with SSH. However, I can't access my server directly by its IP number,

I don't know why, but probably it's because some rule in the company's firewall or proxy, right? What I did to trick this was create an account on NO-IP.org, which provides me with a DNS to my host. In this moment, my "network" is something like this:

When I try to connect (by my work PC) with "telnet xxxxx.no-ip.org 80", or with Putty, I get a blank screen, no errors, no nothing.

But when I try to do this on another PC, on another network without proxies, I'm successfull. So I really think that is my company proxy thats blocking this way, am I correct?

So I think that the solution for my problem is to create a tunnel, to transport my SSH connection over an HTTP, through the Port 80.

But is there a way to do this?

It would be something like this:

Is that correct?

If so, how could I do this?

I'm trying for a week now, with programs like http-tunnel, proxy-tunnel, and others. But nothing until now.

So, any ideias how could I could communicate my SSH client at work over a HTTP (port 80) connection, over NO-IP, my modem, my server, HTTP to SSH, and finally my SSH server?