5 articles
Keep your processes in check. Master Linux 'Control Groups' (Cgroups). Learn how the kernel limits CPU usage, RAM allocation, and Disk I/O speed. Understand why a single runaway container can't crash your entire server.
How does Docker actually work? Peek behind the curtain of Linux Namespaces. Learn how the kernel creates the 'Illusion' of a private system for a single process. Understand PID, Network, and Mount namespaces.
Fortify the brain of Linux. Learn to use 'sysctl' to tune kernel parameters for maximum security. Master 'Anti-Spoofing', 'IP Forwarding' controls, and 'ASLR' (Address Space Layout Randomization). Protect the bootloader with GRUB passwords.
Who exactly are you talking to? Learn to identify your system's heartbeat. Explore the uname command, manage hostnames with hostnamectl, and decode the version strings of the Linux Kernel.
How does Linux start? Trace the journey from BIOS/UEFI to the Bootloader, through Kernel Initialization, and finally into systemd. Learn to troubleshoot boot failures and understand the 'initrd' magic.