Anti DDoS Guardian is a high performance Anti DDoS firewall for Windows Servers, such as Apache servers, IIS servers, online game servers, mail servers, FTP servers, VOIP PBX and SIP servers and other Internet servers . It manages TCP flow and network flow and keeps attack traffic out. Anti DDoS Guardian protection can deal with most DDoS/DoS attacks, including brute force password guessing attack, SYN attack, IP flood, TCP flood, UDP flood, ICMP flood, bandwidth attack and so on. This Anti DDoS firewall limits network flow number, client bandwidth, TCP connection number of each client, UDP/ICMP packet rate, and most importantly, it controls TCP half-open connection which is effective to combat SYN attacks. Anti DDoS Guardian can be successfully deployed on Windows website server machines, in a production environment, to easily ban country IP addresses with Apache’s .htaccess files. In addition, this Anti DDoS software can be used as a simple firewall and the firewall rules are based on IP address, port, protocol, and other TCP/IP factors. It supports IP black list and white list, IP list automatically updating, exceptional rules, log files, network activity displaying in real-time, IP address looking up and other powerful features. In order to get high performance, this Anti DDoS firewall can be configured to start when the Windows is booted and run in the background as a Windows service. Anti DDoS Guardian is fully compatible with Windows 2000, XP, 2003, 2008, Vista, Windows 7, in 32-bit and 64-bit.