How to quickly check if your kernel configuration is secure. Upload your .config file and see what needs fixing.

An overview of the most important changes in Linux kernel 6.19 — Live Update, the new listns() syscall, Btrfs and ext4 improvements, HDR, io_uring, and Rust in the kernel.

How LKRG (Linux Kernel Runtime Guard) works — a kernel module protecting against rootkits and privilege escalation exploits. Installation and comparison with Grsecurity.

How to use ftrace and trace-cmd to trace function calls inside the Linux kernel. Configuration, usage examples, and performance diagnostics.

A complete step-by-step guide to compiling your own Linux kernel — from downloading the source, through configuration, to installation and reboot.

How to use the Magic SysRq Key for emergency reboot of a frozen Linux server. The REISUB sequence, sysctl configuration, and essential SysRq commands.

How to configure kdump to capture memory dumps after a Kernel Panic and analyze them with the crash tool. Setting up kexec, crashkernel, and vmcore analysis.

What is LVM (Logical Volume Manager) on Linux? Creating physical volumes, volume groups, and logical volumes, snapshots, thin provisioning, and practical commands.

What is a Kernel Panic and how to configure automatic system reboot after a crash using the sysctl kernel.panic parameter. Values and use cases for servers.

What is the Linux OOM Killer, how does it choose which process to terminate, and how can you protect critical services from being killed when memory runs out.