Charles Tajvidi

Charles Tajvidi

Network & Security Open-Source Developer
#97847890 followers0 following
✨ 3 day streak
>10,000All time
0 KP

About

I started writing code in 1992 — C, C++, and Lisp — for telecom companies and large enterprises in France. A decade later, my work shifted to network & security engineering, and I became an infrastructure architect dealing daily with fragmented security appliances: one for the firewall, one for the proxy, one for URL filtering. That bothered me. So I built something that does it all in one. That project became CacheGuard Gateway — a free, open-source UTM I've developed solo alongside my consulting career for 20+ years. No investors, no team, just a conviction that enterprise-grade security should be accessible to everyone. Based in France. CacheGuard is my life's work. I'm only getting started.

Badges

Tastemaker
Tastemaker
Gone streaking 10
Gone streaking 10
Gone streaking
Gone streaking
Gone streaking 5
Gone streaking 5

Maker History

  • CacheGuard
    CacheGuardTurn any machine into an internet security gateway
    Oct 2026
    • 🎉
    Joined Product HuntMay 9th, 2026

Forums

•

1d ago

CacheGuard - Turn any machine into an internet security gateway

Free, open-source protection for your whole network: firewall, web filtering, antivirus, IPsec VPN and a shield for your web apps. Connects to your ISP via static IP, DHCP or PPPoE and runs on bare metal or a VM. No user limits, no licensing fees.
View more