April 2011
Intermediate to advanced
392 pages
8h 12m
English
Content preview from BackTrack 4: Assuring Security by Penetration TestingBecome 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,
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VPN enumeration
In this section, we will discuss discovering and testing Virtual Private Network (VPN) systems.
Several years ago, when a branch office wanted to connect to the head-office, it needed to set a dedicated network line between the branch and head office. The main disadvantage of this method was the cost; a dedicated network line was expensive.
Fortunately, there is a solution for this problem a VPN. A VPN allows a branch office to connect to the head office using the public network (Internet). The cost of using a public network is much cheaper than using a dedicated line. With the VPN, the branch office will be able to use the application in the headquarters as if the branch office is located in the Local Area Network (LAN). The connection ...
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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.