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.
Articles for What is ...?
The kernel ring buffer on Linux stores information about important kernel events that can be used by the system administrator to troubleshoot.
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.
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.
Inter-process communication (IPC) provides processes with the capability to communicate with each other, such as signals, pipes, semaphores, and shared memory.
Run0 is a command part of systemd that is intended as an alternative to the sudo command. Both elevate privileges, but are slightly different.
SSH (secure shell) is a network protocol to provide secure remote access to systems, comes with strong authentication and encrypted data communication.
The file /proc/kallsysm contains a symbol table from the kernel with function and variable names. Learn about its purpose and security implications.