This column is the second in a series dedicated to one of my favorite subjects: troubleshooting. Because my column is generally aimed more at tips and tricks and less on philosophy and design, I'm not ...

Poor telnet, it used to be the cool kid on the block. It was the program all sysadmins turned to when they needed to connect to a remote server. Telnet just wasn't that good at keeping a secret—all ...

I have a Windows 7 machine that I frequently RDP to with my Ubuntu laptop. Last night, it worked. Today, it doesn't. I can still ping the Windows 7 machine from both Ubuntu machines. I can even RDP ...