How to quickly check if your kernel configuration is secure. Upload your .config file and see what needs fixing.
Posts for: #Tutorial
dmesg Command in Linux — How to Read Kernel Logs
How to use the dmesg command to diagnose hardware, driver, and boot issues in Linux. Practical examples of filtering and analyzing kernel log messages.
Strace in Linux — How to Trace System Calls
How to use strace to trace system calls of processes in Linux. Attaching to running processes, filtering, and practical debugging examples.
5 Best Linux Performance Monitoring Tools
A review of the 5 essential Linux performance monitoring tools: top, htop, vmstat, iostat, and ss. How to read CPU, memory, disk, and network metrics.
How to Compile Your Own Linux Kernel - A Complete Guide
A complete step-by-step guide to compiling your own Linux kernel — from downloading the source, through configuration, to installation and reboot.
Linux SysRq Key — How to Rescue a Frozen Server
How to use the Magic SysRq Key for emergency reboot of a frozen Linux server. The REISUB sequence, sysctl configuration, and essential SysRq commands.
LVM on Linux — Flexible Disk Management Guide
What is LVM (Logical Volume Manager) on Linux? Creating physical volumes, volume groups, and logical volumes, snapshots, thin provisioning, and practical commands.
make oldconfig — How to Update Linux Kernel Config
How to use make oldconfig to quickly update your Linux kernel configuration when upgrading to a newer version. A practical guide to the Y, M, N options.
menuconfig Search Trick — Jump Directly to Kernel Options
How to use the search feature in make menuconfig to find kernel options instantly and jump to their location in the menu tree.