Lcrzoex, created with the network library lcrzo, allows to test an Ethernet/IP network. For example, one can use it to sniff, spoof, create clients/servers, create decode and display packets, etc. The Ethernet, IP, UDP, TCP, ICMP, ARP and RARP protocols are supported. Lcrzoex and lcrzo were successfully installed under Linux, FreeBSD and Solaris.
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Serial Line Sniffer is a serial port logging utility. It listens to the specified serial port and logs all data going through this port in both directions.
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Razorback is a log analysis program for Gnome which interfaces with the Snort Intrusion Detection System to provide real time visual notification when an intrusion signature has been detected on the network. Screenshot here.
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