A firewall is a program that controls the incoming and outgoing network traffic on a system. Use this tag for all questions related to firewall configuration and operation.

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Firewall change control

At the moment I'm using a Python script to generate iptables rules. Each set of changes gets committed to a git repository before deployment so there's a trace of who changed what and why. What ...
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Learning about iptables: Is this Slicehost example any good?

In preparation to eventually launch my first website, I've been playing with Ubuntu Lucid Server in a VM on my WinXP machine. I've been alternating between the Linode and Slicehost tutorials/articles ...
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Recommend a reading for learning Linux firewalls configuration for beginner? [closed]

I am using Linux at home and want to be able to configure firewall. I would like to understand what I am doing not just copy paste some rules from internet :).