On Linux, the umask defines how new files and directories inherit access rights. Linux uses your current umask value to ...

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 ...

For example, running the command less /var/log/syslog will open your system log in a controlled view. You may then jump ...

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 ...

When an application doesn't respond, it's usually accompanied by it gobbling up system resources. Should that application consume all your remaining CPU or RAM, your system could become unresponsive, ...

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 ...

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 ...

Linux might sound scary for first-time Linux users, but actually, it isn’t. Linux is a bunch of open-source Unix operating systems based on Linux Kernel. These operating systems are called Linux ...

The bug allows users to bypass privilege restrictions to execute commands as root. A vulnerability in Sudo, a core command utility for Linux, could allow a user to execute commands as a root user even ...

Several Linux distros have issued updates to fix a vulnerability in Sudo, a Linux app behind the "sudo" command, which can allow an unprivileged attacker to gain root privileges. The issue, tracked as ...