Log files. They're there for a reason -- to keep track of what goes on behind the velvet curtain of your operating system. When things go wrong, entries are added to those log files, so you can view ...

How to monitor a Linux log file in real time Your email has been sent This must-know Linux command will make troubleshooting considerably easier. Quick: What’s the first thing you do when you need to ...

The last command allows you to look further back into time to see both current and older logins, beginning with the most recent and moving back into previous logins. The command below reports on ...