> I want to redirect the X-Output from a workstation at my university
> to my PC. The Gateway that connects my LAN with the university LAN
> seems to block these packets.
> The admin will not change this.
> 1. What kind of protocol is used for the X-client/server communication?
> 2. Is there any (freeware etc) tool available to tunnel it via http or
See if they will forward ssh connections. Perhaps they already do.
One of the things that the ssh suite does is to forward encrypted
and compressed X sessions. Not only is it secure, but it is much
faster than regular X. There is also a WindowsNT client available.
Ssh uses port 22 for its communications.
Ssh normally does 1024-bit host key identrification, and 768-bit encryption.
This exceeds military-grade cipher requirements, and should satisfy any
security concerns that the admin may have. Its far more secure than his
admin connection to the firewall would be.
Once you have ssh in place, you won't need ftp, since scp will perform the
same functionality as rcp, but encrypted again.
I had a brain-dead firewall administrator, who wanted to deny all access.
He would only allow outbound connections to start. What I ended up doing,
was to start up a window on my home machine (Linux) from my work machine
(Solaris) and firing keep-alive messages through constantly from a background
process. This kept the connection up for weeks at a time.
John Mellor Process Improvements Kitchener, Ontario, Canada