March 2011
Intermediate to advanced
252 pages
4h 24m
English
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Configuring optional interfaces
This recipe describes how to create and assign optional network interfaces to our firewall.
Getting ready
The optional network you'll create in this is example is commonly referred to as a DMZ. The idea is taken from the military concept of a de-militarized zone, in which some traffic is allowed to pass and some traffic isn't. The idea is that the area is controlled and clearly separate from your other areas. When applied to networking, a DMZ network follows this pattern:
Internet Traffic | ← DMZ ← LAN Traffic
Unsafe Internet traffic is allowed to enter the DMZ, to access a webserver for example. LAN traffic can also enter the DMZ; it wants to access the webserver too. However, the key lies in the last rule—no DMZ traffic ...
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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.