Sometimes you want to know how is the strength of WiFi signal. It is very useful when you are in a hotel, or you want to diagnose problems with WiFi. In order...

Once upon a time I wanted to check if some ports are open. The network I wanted to check was at my office, and when I forwarded some ports on my Mikrotik I...

I have an old scanner Mustek 1248UB and I decided to use it on my Ubuntu 12.04 64bit. Of course after plugged it in USB it doesn't work, so I found solution...