Installing and updating the OS, managing user accounts, and looking after security are just a few of the primary responsibilities of a Linux systems administrator. While I don’t imagine that I’ll ever ...

Sudo is one of the most powerful and dangerous tools in the Unix or Linux system administrator's toolbox. With it, an ordinary user can run commands just as if he or she were the superuser or any ...

This is the second in a series of articles on systems administrator fundamentals. These days, DevOps has made even the job title "systems administrator" seem a bit archaic, much like the "systems ...

Keep your Linux operating system and the software you run on it fully up to date. You don’t have to worry about remembering to perform patching if you take on one of these automated systems. Automated ...

It is no secret that Linux is a far more secure option than Windows. From the ground up, Linux was designed to be highly secure. Since I started using Linux (back in '97), I've only had one ...

SearchEnterpriseLinux – Proprietary vendors call free OSS support “worthless”; but one sysadmin claims that mailing lists and Web-based documentation have solved almost all of his open source problems ...

One of the files that the average Unix sysadmin rarely looks at, almost never changes and yet depends on every time he or she reboots a system is the /etc/inittab file. This modest little file ...

A sysadmin has developed 48 characters of code that he claims can crash most popular Linux distributions. Andrew Ayer, a Linux administrator and founder of SSLMate, explains his code works by crashing ...