The sudo command lets users elevate their privileges to run admin tasks. But it's far from perfect. These tips can help.

The sudoers file can provide detailed control over user privileges, but with very little effort, you can still get a lot of benefit from sudo. In this post, we’re going to look at some simple ways to ...

OK, it looks like you need to employ some extra privilege. In general, you can’t write to a system log file with your user account. Let’s try that again with sudo. The response to the first of the ...

T he usermod command is a tool for updating details about an existing user account in your system. It's kind of like editing ...

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

If you use sudo to run commands as root, you've probably run into “permission denied” problems when only part of a pipeline or part of a command is running with root permissions. This fails with ...

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 ...

A common use for the ip command is checking what network devices are connected to your Linux system. You can use this ...

A now-fixed Sudo vulnerability allowed any local user to gain root privileges on Unix-like operating systems without requiring authentication. Sudo is a Unix program ...