Posted inLinux
Boosting Linux Server I/O Performance: noatime and tuned profile Tips
A quick guide to optimizing Linux I/O performance by configuring noatime and using tuned profiles to reduce system latency.
Posted inUbuntu
Forgot Your Ubuntu Password? How to Reset via GRUB & Recovery Mode in 5 Minutes
Forgetting your Ubuntu password is no longer a disaster. Here is a detailed guide on 2 ways to reset your password via GRUB and Recovery Mode, helping you regain control of your server in under 5 minutes.
Posted inNetwork
Mastering Policy-Based Routing (PBR) on Linux: Route Traffic Like a Pro
Don't let backup traffic clog your main connection. A detailed guide on using Policy-Based Routing (PBR) on Linux to intelligently route traffic based on source IP and Port.
Posted inMonitoring
smartmontools Guide: Diagnosing Linux Hard Drive Issues Before Your Data Vanishes
Don't let your hard drive die in silence. A detailed guide on using smartmontools to diagnose HDD/SSD health on Linux and setting up automated Telegram alerts.
Posted inSecurity
Auditd Configuration Guide: The “Black Box” for Tracking Every Change on Linux
Hackers can wipe history but they can't hide from Auditd. A guide to configuring the Linux "black box" to trace file edits, command execution, and overall server security.
Posted inMonitoring
Simplify Linux Server Monitoring with Glances Web Dashboard
Forget complex terminal commands. Glances provides a comprehensive Linux monitoring dashboard right in your browser. Fast, lightweight, and highly intuitive.
Posted inNetwork
Mastering the socat Command on Linux: Port Forwarding, Relays, and SSL Tunnels in Practice
socat is a powerful Linux command-line tool for port forwarding, TCP/UDP relays, and SSL tunnels — all with a single command. This guide walks through real-world scenarios from basic port forwarding and multi-hop relays to wrapping plain TCP services with SSL.
Posted inUbuntu
Deep Cleaning Ubuntu: Purge Junk, Old Kernels, and Free Up GBs of Space
A detailed guide on deep cleaning Ubuntu: remove orphaned packages, purge old kernels, and limit system logs to quickly reclaim GBs of space for your VPS.
Posted inNetwork
DNS Configuration on Linux: Permanently Fix Settings Being Lost After Reboot
Tired of losing DNS settings in /etc/resolv.conf after every reboot? This guide shows you how to properly configure DNS on Linux using Netplan, nmcli, and systemd-resolved for long-term stability.
Posted inLinux
Direnv: The ‘Lifesaver’ for Automating Per-Project Environment Variables on Linux
Manually managing environment variables on Linux often leads to data mix-ups between projects. Learn how to use direnv to automatically load and unload configurations as you switch directories.