How to Use the ss Command to Monitor Network Connections in Linux

If you use Linux, there will probably come a time when you need to know more about your network. Several tools can help you do this, and some are more complicated than others. The ss command is something you can rely on being installed on many machines, so it’s handy to know. What Is the ss Command? While the two-letter command’s name may seem arcane, it’s actually quite simple. Like many Linux/Unix commands, the name is an abbreviation of what the command does. Here, ss stands for Socket Statistics. Socket Statistics is a replacement for the old netstat tool, aimed at being easier to use… Read more

How to Schedule Commands in Linux with the “at” Utility

The first time I managed a busy server, I had to wait for an opportune time to reboot it when people weren’t using it. I noticed that this happened around 3AM. Then, I thought to myself: “Well this is inconvenient, I have to wake up at an unreasonable hour just to reboot my server.” Five seconds later I realized that was a stupid thought. “This is Linux, I’m sure it’s easy to automate such a simple task.” And so, at was discovered. The utility is very easy to use. You just pass the time and date as a command line parameter, and then enter one… Read more