Everything for Self-Hosters
Course, tools, guides, and VPS directories to run, secure, and monitor your own infrastructure.
Course
The flagship long-form course behind these tools.
Self-Hosting Mastery with Coolify
Take Control of Your Hosting, Cut Costs, With No Limits!
By Hasan Aboul Hasan
Resources
Directories and tools to run, secure, and monitor your own infrastructure.
Resource
VPS Providers
Compare VPS hosts side-by-side: pricing, support, performance, locations, trust score. Verified facts, no fluff.
Resource
Self-Hosting Savings Calculator
Plug in your current SaaS bills. See real savings against an honest VPS cost. Get a personalized roadmap for what to host first.
Resource
VPS Security Scanner
Run an external security scan against your VPS public IP. Available to Self-Hosting Course students. Audits SSH, exposed databases, container APIs, management UIs, DDoS amplification, and IP reputation.
Guides
Step-by-step walkthroughs for self-hosting popular tools.
Guide
Install Coolify in 2026 (Starter Guide)
Install Coolify on a Contabo VPS, spin up Postgres, Redis, and MongoDB in three clicks each, secure with HTTPS, and update safely. ~30 minutes.
Guide
Install PyRunner on Coolify
Deploy PyRunner on your own Coolify v4 server with HTTPS, persistent storage, and one-click updates. ~3 minutes start to finish.
Guide
Self-Host Postal SMTP
Ship a production-ready Postal SMTP install in ~30 minutes. Strong DB password, firewall, HTTPS, SPF/DKIM, and daily backups.
Guide
Install Mautic 7 on Coolify
Coolify removed its one-click Mautic service. Here's the working docker-compose.yml for Mautic 7 — web, cron, worker, and MariaDB. ~5 minutes.
Quick Tools
Free networking and sysadmin utilities — no signup, no limits.
SMTP Tester
Test your SMTP server configuration by sending a test email
DNS Lookup
Inspect A, AAAA, MX, TXT, CNAME, NS, SOA, and CAA records for any domain — fast answers from public resolvers.
IP Lookup
Geolocate any IPv4 or IPv6 address — country, region, city, ISP, ASN, timezone, and reverse DNS, all in one query.
Ping
Test if a host is reachable and measure response time from our servers — works with any domain or public IP.
SSL Certificate Lookup
Inspect any site's TLS certificate — issuer, expiry, SANs, key strength, and chain validity in one query.
Reverse IP Lookup
Find the PTR (reverse DNS) hostname for any IPv4 or IPv6 address — powered by Cloudflare and Google resolvers.
Open Port Checker
Test if a TCP port is reachable on any public host — instant results, no install.