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.

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.

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.

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.