A simple way to block access to the internet per app
OpenSnitch is a GNU/Linux port of the Little Snitch firewall
Simple tool to configure Windows Filtering Platform (WFP)
Serve as a reverse proxy to protect your web services from attacks
HTTP proxy to block ads and customize webpages
Free UTM appliance: firewall, VPN, WAF and antivirus in one ISO.
Robust and flexible VPN network tunnelling
Anti Spam SMTP Gateway
OpenWRT ©VMWare ©ESXi Appliance NAT router
Tool to ping hosts through firewalls blocking ICMP
One of the most advanced DNS Proxy and DNS Firewall in one product.
Bypass your ISP's firewalls and connect to the internet!
OWASP ModSecurity Core Rule Set (CRS) Project
Bash script to enable the firewall on startup of your Ubuntu server.
KnockIt! is a port Knocking tool for MAC OSX
This tool locks down Linux and UNIX systems.
IoT Device, Gateway, Server platform
A simple captive portal