Posted inSecurity
Watching the Hackers: Building an SSH Honeypot with Cowrie
I ran an SSH honeypot for six months and captured 50GB of logs. Here is how you can use Cowrie to monitor real-world attackers and improve your Linux security.
Posted inLinux
How to Secure SSH Server: Disable Root Login and Set Up Key-Based Authentication
Default SSH configuration leaves your server exposed to brute-force attacks. This guide walks through disabling root login, setting up key-based authentication, and validating your SSH hardening configuration on Ubuntu/Debian servers.
Posted inLinux
How to Install Ubuntu Server Step by Step: A Practical Guide for IT Pros
Installing Ubuntu Server is a core skill for any IT professional. This guide walks you through each step, from downloading the ISO to essential post-installation checks, providing a stable, secure base for your projects. Learn practical tips to set up your server efficiently.
Posted inSecurity
How I Detect and Prevent Brute-Force Attacks (A 6-Month Review)
A midnight brute-force attack forced me to get serious about server security. For the last six months, a layered strategy using Fail2ban and SSH keys has kept my systems secure and silent. This guide details my practical, battle-tested setup so you can do the same.
Posted inLinux
Automated Backup with rsync and cron: Stop Losing Data the Hard Way
Manual backup routines break down under real workload pressure — not from laziness, but from how humans actually work. This guide covers how to pair rsync with cron for a reliable automated backup system on Linux, including incremental transfers, SSH remote sync, versioned copies, and a production-ready script with logging.
Posted inNetworking
SSH Tunneling: Secure Access to Remote Services Over Any Network
SSH tunneling lets you securely forward ports between machines using an existing SSH connection — no VPN, no firewall changes, no extra software. This guide covers local, remote, and dynamic tunnels with practical examples, persistent setup using autossh, and a systemd service for production use.