Many Linux commands can do more than you might think. The usermod command is one such command, and it can be very handy.

There are many aspects to security on Linux systems – from setting up accounts to ensuring that legitimate users have no more privilege than they need to do their jobs. This is look at some of the ...

As Terry Lambert, the developer behind Linux ancestor Unix, once said, "It is not Unix's job to stop you from shooting your foot. If you so choose to do so, then it is Unix's job to deliver Mr. Bullet ...

I have been a Linux advocate for about ten years now. The first version of Linux I installed was Red Hat 3.0.3. I had used a UNIX-based system in graduate school, and I was somewhat familiar with how ...

Removing sudo rights from CentOS (top) and Ubuntu (bottom). How to create a new user with admin privileges on Linux Your email has been sent If you’re a Linux system admin, you probably find yourself ...

When using Linux, you're bound to fire up a terminal session at some point. Whether it's to dabble with some commands to see how you fare, learn something new, or troubleshoot an issue that the GUI is ...

Linux System Security offers ways to protect Linux systems from break-in, as well as to detect evidence of attacks quickly. The book is intended to provide readers with skills, knowledge and tools ...

Everyone knows that Linux makes a great Web server. Some network administrators even use it in conjunction with Samba to create file servers that Windows workstations can access as easily as Windows ...

How the true and false commands work, and how to put them to use on the command line and in scripts. True and false are common concepts in all forms of computing. They’re critical to Boolean logic ...