Install and Secure MariaDB on Linux (Ubuntu & AlmaLinux)
Install MariaDB on Ubuntu and AlmaLinux. Secure with mysql_secure_installation, create users, and enable remote access safely.
Read tutorial →linux admin
Browse step-by-step tutorials in this topic.
Fail2ban Ban Report Shell Script for Linux (Daily Summary)
Generate a daily Fail2ban ban report on Linux. List banned IPs per jail, top attackers, and email summary…
Read tutorial →
Linux Backup Verification Shell Script (Test Restore Integrity)
Verify backup integrity on Linux with a Bash script. Test gzip archives, SQL dumps, and tar files before…
Read tutorial →
Nginx Config Test and Safe Reload Shell Script for Linux
Safely test and reload Nginx on Linux with a Bash script. Validates config before reload and rolls back…
Read tutorial →
Systemd Journal Vacuum Shell Script (Log Disk Cleanup)
Free disk space on Linux by vacuuming systemd journal logs with a safe Bash script. Set size limits…
Read tutorial →
Linux Inode Usage Monitor Shell Script (Prevent Disk Full)
Monitor inode usage on Linux filesystems with a Bash script. Alert before small-file exhaustion crashes MySQL, mail, or…
Read tutorial →
Systemd Failed Units Report Shell Script for Linux
List failed systemd units on Linux with a Bash script. Daily report of failed services, timers, and mounts…
Read tutorial →
Linux Swap and Memory Alert Shell Script
Monitor Linux swap and memory usage with a Bash script. Alert when RAM or swap exceeds threshold before…
Read tutorial →
Extend LVM Logical Volume on Linux (Step-by-Step Guide)
Extend an LVM logical volume on Linux when disk is full. Add PV, extend VG/LV, and grow XFS…
Read tutorial →
Extend LVM Disk on Linux with a Shell Script (lvresize & xfs/ext4)
Extend LVM logical volumes on Linux with a safe Bash script. Grow partitions, PV, VG, LV, and filesystem…
Read tutorial →