May 2005
Intermediate to advanced
666 pages
21h 5m
English
book
SSH, The Secure Shell: The Definitive Guide, 2nd Edition
by Daniel J. Barrett, Richard E. Silverman, Robert G. Byrnes
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Summary
In this chapter, we discussed SSH port forwarding and X forwarding. Port forwarding is a general TCP proxying feature that tunnels TCP connections through an SSH session. This is useful for securing otherwise insecure protocols running on top of TCP or for tunneling TCP connections through firewalls that would otherwise forbid access. X forwarding is a special case of port forwarding for X Window System connections, for which SSH has extra support. This makes it easy to secure X connections with SSH, which is good because X, while popular and useful, is notoriously insecure. Access control on forwarded ports is normally coarse, but you can achieve finer control with the TCP-wrappers feature.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.