What is ...?
In the section ‘What is …?’ concepts are explained related to Linux and Linux security. The goal is to provide a basic definition of each term with references where to read more about the subject.
What is a monotonic timer?
Monotonic are timers that start at specific events, such as boot or service action. Learn more about monotonic timers and how to related to Linux systems.
What is a security audit?
This article describes what a security audit is and why or when to use it. System audits also apply to Linux systems as part of technical auditing.
What is run0?
Run0 is a command part of systemd that is intended as an alternative to the sudo command. Both elevate privileges, but are slightly different.
What is SSH?
SSH (secure shell) is a network protocol to provide secure remote access to systems, comes with strong authentication and encrypted data communication.
What is the file /proc/kallsyms on Linux?
The file /proc/kallsysm contains a symbol table from the kernel with function and variable names. Learn about its purpose and security implications.