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Using screen for remote interaction

Recently I needed to do some distance education; one of my coworkers wanted me to show him how to do software builds on Linux. The only problem was that I'm on the East Coast and he is on the West. How could I show him the build and install process? After considering some alternatives, we found our solution in GNU Screen.

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Create a secure Linux-based wireless access point

Wi-Fi Protected Access version 2 (WPA2) is becoming the de facto standard for securing wireless networks, and a mandatory feature for all new Wi-Fi products certified by the Wi-Fi Alliance. We all know the security weaknesses of its predecessor, WEP; this time they got it right. Here's how to implement the WPA2 protocol on a Linux host and create a secure wireless access point (WAP) for your network.

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Vim tips: The basics of search and replace

Let's start by looking at searches and doing search and replace operations within Vim. You can do a search in normal mode by using /searchstring . This will search forward through the file for searchstring . Likewise, running ?searchstring will search backwards through the file.

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Ten tips for new Ubuntu users

The default Ubuntu install contains free software only, which means that it doesn't support some popular multimedia formats straight out of the box. This is inconvenient, but the Ubuntu folks have good reasons for not shipping with support for MP3, DVDs, and so forth -- including that software could cause them some legal headaches, or incur some serious fees.

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Vim tips: Folding fun

The problem with writing and editing on a computer, versus having words on paper, is that it's usually hard to compare text from different sections of a document when they don't fit on the screen together. One way to do it is to use Vim's viewports feature. Another is to "fold" the text. Using Vim's folding features, you can tuck away portions of a file's text so that they're out of sight until you want to work with them again. Here's how.

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