This chapter excerpt on Linux Administration (download PDF) is taken from the book The Accidental Administrator: Linux Server Step-by-Step Configuration Guide. Among the topics covered in this book ...

A vulnerability in the Linux sudo command has been discovered that could allow unprivileged users to execute commands as root. Thankfully, this vulnerability only works in non-standard configurations ...

Root (aka “/”) is where all other directories are found. If you issue the command ls /, the output will include directories like bin, boot, dev, home, etc, media, mnt, opt, sbin, srv, and var. The ...

Files, permissions, processes, networking, packages and disks: the Linux commands you actually use, with syntax and examples, and the ip and ss tools that replaced ifconfig and netstat.

When I started using Linux, the file system was nothing like the folder structures I’d been used to on Windows. I’ll admit that it took me a while to feel comfortable. However, with time, I realized ...

Directories on Linux systems provide an easy and very convenient way to organize your files. In fact, depending on how you like to work, you can set up as many layers of directories within directories ...

GUIs are great—we wouldn’t want to live without them. But if you’re a Mac or Linux user and you want to get the most out of your operating system (and your keystrokes), you owe it to yourself to get ...

Ayush Pande is a PC hardware and gaming writer. When he's not working on a new article, you can find him with his head stuck inside a PC or tinkering with a server operating system. Besides computing, ...