I set up this Linux 'Watchdog' and now my system auto-reboots when it locks up

If your Linux system becomes unresponsive, this tool can monitor it and reboot when problems arise. Here's how.
XDA Developers on MSN

I turned my old router into a Wi-Fi extender with OpenWrt, and it was easier than I thought

Your old router may have been abandoned by the manufacturer, but OpenWrt can breathe some new life into it and make it useful ...