Cross platform web application firewall (WAF) engine for Apache
All-in-one solution for high performance web content delivery
Handy, High performance, ModSecurity compatible Nginx firewall module
Provide basic firewall program for Kevux using FLL.
Next Generation Open Source Firewall
Cross-platform multi-protocol VPN software
IPBan is a trusted, free security software to block hackers
A dead simple VPN
Zeek is a powerful network analysis framework
Bug-fix-only libev port of shadowsocks
Intelligently block brute-force attacks by aggregating system logs
Network Security Appliance Linux Distribution
Free UTM appliance: firewall, VPN, WAF and antivirus in one ISO.
SKUDONET Open Source Load Balancer and Web Application Firewall
Antivirus eCAP adapter for Squid 3.1 and above.
Robust and flexible VPN network tunnelling
Network Load Balancer and Application Security
Anti Spam SMTP Gateway
A library for blocking access to network on-the-fly
Chat Messenger. E-Mail-Client. Websearch. Filetransfer.
The only tool/technique to punch holes through firewalls
Spock SLAF is a Shared Library Application Firewall "SLAF".
hidden firewall, custom firewall in kernel
Web application firewall in C language uses libevent