Book Image

Configuring IPCop Firewalls: Closing Borders with Open Source

Book Image

Configuring IPCop Firewalls: Closing Borders with Open Source

Overview of this book

IPCop is a powerful, open source, Linux based firewall distribution for primarily Small Office Or Home (SOHO) networks, although it can be used in larger networks. It provides most of the features that you would expect a modern firewall to have, and what is most important is that it sets this all up for you in a highly automated and simplified way. This book is an easy introduction to this popular application. After introducing and explaining the foundations of firewalling and networking and why they're important, the book moves on to cover using IPCop, from installing it, through configuring it, to more advanced features, such as configuring IPCop to work as an IDS, VPN and using it for bandwidth management. While providing necessary theoretical background, the book takes a practical approach, presenting sample configurations for home users, small businesses, and large businesses. The book contains plenty of illustrative examples.
Table of Contents (16 chapters)
Configuring IPCop Firewalls
Credits
About the Authors
About the Reviewers
Preface
7
Virtual Private Networks
11
IPCop Support

The HTTP Problem


One of the most commonly used protocols, Internet-wide, is HTTP (although peer-to-peer filesharing applications are fast catching up). Most businesses have a website running on HTTP as their basic Internet presence and there are very few Internet users that don't use HTTP. We can be pretty confident that this is going to be a protocol used on our network.

HTTP presents us with an important problem when it comes to bandwidth—users expect HTTP to be almost instantaneous. Introducing delays to a user's web browsing experience due to bandwidth congestion is far from an ideal situation and is probably the first place network users are going to notice (and complain!) about a lack of bandwidth. Luckily, IPCop provides us with very powerful options to reduce HTTP's impact on the network.