Learn how to use Linux help commands like apropos, whatis, man, info, and --help to discover commands and learn their usage.

AttackIQ has released two new assessment templates in response to the CISA Advisory (AA25-266A) published on September 23, 2025. The CSA highlights the lessons learned from an incident response ...

Huntress analysts discovered a previously unseen ransomware variant, Obscura, spreading from a victim company's domain controller. Learn how Obscura works—and what it means for defenders—in this ...

You use the chmod command to set each of these permissions. To see what permissions have been set on a file or directory, we ...

You can check user groups in Linux with commands like groups, id, getent, and /etc/group to manage permissions easily.

Certifications from Red Hat, Oracle and SUSE are tailored to environments where those Linux distributions are prevalent.

This means, if you’re working in a checked-out repository, you might not be able to find the files you're expecting. You can ...

Learn how to add, delete, and grant sudo privileges to users in Red Hat Enterprise Linux (RHEL), AlmaLinux and Rocky Linux.

Can a terminal file manager be actually pleasant to use? Tools like Midnight Commander and ranger are undeniably powerful, and much-loved by those who’ve mastered them, but for others they’re dense, ...

G20 Summit: President Trump announced Friday that next year’s Group of 20 summit would be held at a resort he owns, the Trump Doral, in Florida, despite ethical concerns that led to him dropping a ...