fudp simple udp flooding utility with some nice features.
Alfandega is a strong and Modular IpTables Firewall. It provides NAT, port-forwarding, spoofing list, blacklist of crackers and spywares sites, protection for tcp/udp scans, DOS/DDOS and Smurf attacks, TCP tuning, DHCP and PPP support and much more.
A fast PPTP proxy for any BSD with OpenBSD packet filter installed. It handles multiple transparent bi-directional tunnels, and can be chained from one proxy to another over several servers.
DaemonWall is an OpenBSD-based network security live CD which can act as an Internet firewall/gateway.
FireGate is an IPtables script for use as a firewall and NAT/masquerade for home networks or SOHO applications.
Easy to use firewall configuration script, featuring statefull connection tracking, bandwidth limiting and bandwidth logging.
The PyGuard Firewall is a Linux firewall distribution. It is geared towards home, SOHO and small business users. The main difference with existing firewalls is that the PyGuard interface will be very user-friendly and task-based. The firewall can be rem
Quarantine is an ipchains based firewall with NAT, traffic shaping and type of service features. This project was formerly known as 'netwall'.
An easy-to-use, self-configuring OpenBSD-based firewall with a web interface.
nf_quota is an ip-based traffic accounting project. IPs can be added to users. It provides a kernel module that hooks onto netfilter and counts every packet passing a specified interface. If the quota for a ip/user is exceeded, the packet is dropped.
pKnocker is a package of programs used to implement port knocking on both the client and the server.