October 2020
Intermediate to advanced
481 pages
17h 35m
English
Content preview from Network Security, Firewalls, and VPNs, 3rd Edition
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Types of Virtualization
There are several types of virtualization available for SOHO and business installations. Operating system virtualization is the emulation of an OS environment hosted on another OS. A virtual machine exists logically, but it does not have an associated dedicated physical device. Thus, a single physical machine can host multiple virtual machines. Virtualization of storage allows a storage manager to abstract the underlying physical storage technologies and manage storage at a logical level. Network virtualization allows you to run multiple logical switches within a single physical switch chassis. Some SSL VPNs support VPN virtualization.
All of these technologies can potentially affect your VPN environment.
Desktop ...
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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.