October 2020
Intermediate to advanced
481 pages
17h 35m
English
Content preview from Network Security, Firewalls, and VPNs, 3rd Edition
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Limitations of Firewalls
Firewalls are essential components of security. Systems ranging from standalone home systems to global IT infrastructures all need firewalls as part of the overall security solution. However, firewalls are not perfect solutions. In fact, when it comes to firewalls, you need to account for several well-known limitations in design and management.
Firewalls are ultimately software code written by humans. In either a host firewall or an appliance firewall, the logic and controlling mechanisms of the firewall are software. Software is simply code that is designed and written by people. Whenever people are involved, the possibility exists that they will make mistakes or oversights. Fortunately, most firewall products are ...
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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.