Proc

The file /proc/kallsysm contains a symbol table from the kernel with function and variable names. Learn about its purpose and security implications.

Harden system and user services by restricting systemd units to access information from the /proc directory with the unit setting ProcSubset.

Harden system and user services by restricting systemd units to access information from the /proc directory with the unit setting ProtectProc.

Linux memory management is an extensive subject. This guide helps you understanding the how to analyze it and obtain available memory information.

Using the Linux Security Module (LSM) Yama we can protect the system against the usage of ptrace. The sysctl key kernel.yama.ptrace_scope sets the behavior.