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
Content preview from SSH, The Secure Shell: The Definitive Guide, 2nd EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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.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.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.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.
Connector
We have previously seen how static port forwarding can be extended for SOCKS-aware applications to provide dynamic port forwarding. [9.3] SOCKS is fully supported by the Tectia client, but you have to reconfigure each application to use the SOCKS proxy, which can be annoying.
Tectia Connector extends this concept further to achieve complete transparency: applications can use dynamic port forwarding without any reconfiguration whatsoever, because the applications are entirely unaware that the forwarding is happening.
To accomplish this feat, Connector worms its way into the Windows TCP/IP protocol stack (which includes hostname lookup functionality). This allows it to intercept networking operations by applications and reroute them to its own Connector engine, which then initiates SSH connections to servers on behalf of the applications. The capture and forward mechanism also allows the Connector engine to exercise precise control over network connections, and to enforce security policies that require certain kinds of connections to use secure protocols, like SSH.
Tip
As of Version 4.2, Connector requires functionality provided only by “Tectia Server (T).” [16.11] “Tectia Server (A)” can’t be used with Connector, and other non-Tectia servers are unsupported.
Connector only affects outgoing TCP connections. Applications can still accept incoming connections directly, and other protocols (like UDP, ICMP, etc.) are completely ignored by Connector. Note, however, that all applications ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
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.