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Weekend Project: Set Up Safe Guest Wi-Fi with Linux

The holiday season is upon us, and you know what that means: relatives coming over wanting to use your WiFi. If you'd like to find a solution somewhere between "run an open, unsecured AP" and "hand out your WPA2 password to people who write things like that down on sticky notes" then setting up a captive portal is a convenient option.

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Managing Templates in LibreOffice

Templates are a way to manage frequently used, pre-formatted documents that keep you from having to re-create the same forms over and over. OpenOffice.org.org and its successor LibreOffice have a built-in system for handling templates. At first blush this system may seem less than intuitive, because it is. But, after you are used to managing templates in LibreOffice, you will wonder what you did without them.

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Understanding the Stable Linux Kernel

Will we have a new kernel by Christmas? I remember wondering that back in 1998 when 2.2 was on the horizon. Things have changed quite a bit since then in kernel development, and with Greg Kroah-Hartman's announcement last week about changes in the stable kernel release procedure, it's a good time to look at how the stable tree works.

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Weekend Project: Intrusion Detection on Linux with AIDE

Front-line measures like firewalling, strong authentication, and staying on top of security updates are mandatory steps to keeping your system secure. But you also need to check your system's health frequently and make sure a compromise didn't slip past you unnoticed. A good place to start is with an intrusion detection system (IDS) that monitors your machine's resources and flags any changes that might indicate an intruder or a rootkit. The Advanced Intrusion Detection Environment (AIDE) is an open source IDS that you can set up in a weekend.

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Foil Firesheep and other Nuisances on Linux

You've probably heard a lot about Firesheep, the Firefox extension that exposes user credentials and allows almost anyone to take over an account on Facebook, Twitter, and many other sites with a few clicks. But what do you do to defeat it? Read on, and you'll be able to foil Firesheep in no time.

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