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  • Book Overview & Buying Designing and Implementing Linux Firewalls and QoS using netfilter, iproute2, NAT and l7-filter
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Designing and Implementing Linux Firewalls and QoS using netfilter, iproute2, NAT and l7-filter

Designing and Implementing Linux Firewalls and QoS using netfilter, iproute2, NAT and l7-filter

By : Lucian Gheorghe
4.3 (8)
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Designing and Implementing Linux Firewalls and QoS using netfilter, iproute2, NAT and l7-filter

Designing and Implementing Linux Firewalls and QoS using netfilter, iproute2, NAT and l7-filter

4.3 (8)
By: Lucian Gheorghe

Overview of this book

Firewalls are used to protect your network from the outside world. Using a Linux firewall, you can do a lot more than just filtering packets. This book shows you how to implement Linux firewalls and Quality of Service using practical examples from very small to very large networks. After giving us a background of network security, the book moves on to explain the basic technologies we will work with, namely netfilter, iproute2, NAT and l7-filter. These form the crux of building Linux firewalls and QOS. The later part of the book covers 5 real-world networks for which we design the security policies, build the firewall, setup the script, and verify our installation. Providing only necessary theoretical background, the book takes a practical approach, presenting case studies and plenty of illustrative examples.
Table of Contents (14 chapters)
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Designing and Implementing Linux Firewalls and QoS using netfilter, iproute2, NAT, and L7-filter
Credits
About the Author
About the Reviewer
Preface
1
Index

Chapter 7. Medium Networks Case Studies

In the previous chapter we learned about using Linux as a SOHO router and as a router for a medium company with internal departments.

While small networks have the most common topologies because of their simplicity, when we go further in the hierarchy of networks, there are fewer chances to find standard topologies for networks built with Linux machines as routers. This is not a bad thing at all, because, considering Linux' flexibility, network administrators can deploy networks and services using more their imagination than standardization.

Throughout this chapter we will try to describe a few medium networks we've encountered in our experience, how we deployed them, and how we built the firewall for those networks.

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83
Tech Concepts
36
Programming languages
73
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Designing and Implementing Linux Firewalls and QoS using netfilter, iproute2, NAT and l7-filter
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