👋 Hey, I'm Marco, a software engineer with 10+ years of experience, currently working as a team leader in Accenture. Explore my articles and projects on GitHub and feel free to connect via email or X!
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How to setup a firewall with UFW on Debian
Step-by-step guide to install and configure UFW (Uncomplicated Firewall) on Debian and Ubuntu to protect your VPS by managing incoming and outgoing traffic rules.
How to secure your VPS with Fail2ban
Complete guide to install and configure Fail2ban on CentOS and Debian to protect your VPS from brute-force attacks by automatically banning malicious IP addresses.
Asymmetric encryption in Nodejs
Learn how to implement asymmetric encryption in Node.js using public and private RSA keys with OpenSSL and the crypto module for secure data exchange.
Recent Posts
How to Configure a Shelly 2PM for Electric Shutters with Zigbee and Home Assistant
A complete guide to wiring and configuring a Shelly 2PM for electric roller shutters, switching the firmware to Zigbee, and integrating it with Home Assistant via ZHA — including calibration over Zigbee.
How to Set Up a Mini PC with Proxmox and Home Assistant OS
A step-by-step guide to install Proxmox on a mini PC, boot it from a USB drive, and then install Home Assistant OS using the community helper scripts.
Setting Up a Telegram Bot for VPS Alert Notifications
Step-by-step guide to create a Telegram bot and send real-time alert notifications from your VPS using simple curl commands, with a practical backup monitoring example.
How to use vi editor without going crazy
Essential Vi/Vim commands cheat sheet for beginners - learn basic editing, search, copy/paste, navigation, and file operations without the frustration.