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Hi, I'm Ivan Salloum.
I teach Linux servers, self-hosting & security — clearly, from the terminal up. Standalone guides and ordered written courses, for people who'd rather understand their stack than fear it.
Featured
Hand-picked, start here.
Your First Authoritative DNS Server with CoreDNS
Learn how to set up your own authoritative DNS server for full DNS control and easy custom record management.
Read →How to Run Beszel for Server Monitoring
Step-by-step guide to deploy Beszel for self-hosted server monitoring – everything you need to run it confidently.
Read →How I Built an Adaptive Firewall Setup with UFW and Fail2ban (UFW+)
Learn how I built UFW+, an adaptive firewall setup that combines UFW, Fail2ban, and nftables to block floods, scans, and spoofed traffic efficiently.
Read →Latest
All writings →Your First Authoritative DNS Server with CoreDNS
Learn how to set up your own authoritative DNS server for full DNS control and easy custom record management.
Read →How to Run Beszel for Server Monitoring
Step-by-step guide to deploy Beszel for self-hosted server monitoring – everything you need to run it confidently.
Read →How I Built an Adaptive Firewall Setup with UFW and Fail2ban (UFW+)
Learn how I built UFW+, an adaptive firewall setup that combines UFW, Fail2ban, and nftables to block floods, scans, and spoofed traffic efficiently.
Read →How to Use IP Pools for Better Deliverability in Postal
Learn how to configure IP pools in Postal using Floating IPs for better email deliverability, reputation management, and sending flexibility.
Read →Installing Docker and Docker Compose on Ubuntu (Using Docker’s Official Repository)
Remove old Docker packages and install Docker Engine and the Compose plugin on Ubuntu Server using Docker’s official repository.
Read →Self-Host Private and Lightweight Analytics with Umami
A step-by-step guide to self-hosting Umami – a lightweight, privacy-friendly analytics tool with no cookies or third-party tracking.
Read →cd ./collections
Written courses
Ordered, multi-part guides that build on each other — learn a topic end to end.