June 2003
Intermediate to advanced
464 pages
10h 33m
English
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8.3. Before opening the doors: hardening
A process sometimes used in the UNIX and Linux community is hardening. A “hardened” system is presumed to be impervious to any currently known attacks, exposures, or vulnerabilities. Every system, Linux or otherwise, should be hardened before being placed on any active LAN. Hardening is not a one-time task. Depending on the level of acceptable risk, triggers must be identified to ensure that the system configuration is revisited as needed. The security policy should contain criteria that trigger a reassessment of the configuration. For example, if a new Internet worm is identified and is known to attack the e-mail server, the security policy must be checked, and systems must be updated and rehardened. ...
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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.
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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.