WEB,NIS, DNS, CGI and OS attempting attacks, UDP/TCP ports scan and probe , buffer overflow attack, IP deception attack and etc.

• guarder为一基于网络的入侵检测系统，能够识别约1290种攻击，例如DoS、DDoS、FTP、Web、NIS、DNS、CGI、OS尝试攻击，UDP/TCP端口扫描和秘密的端口扫描，缓冲区溢出攻击，IP欺骗攻击等。