justniffer is a TCP sniffer. It reassembles and reorders packets and displays the tcp flow in a customizable way. It can log network traffic in web server log format. It can also log network services performances (e.g. web server response times) and extract http content (images, html, scripts, etc)
A network and services monitoring system. Does PING, DHCP, POP3, SMTP, FTP etc etc tests. Does NOT require additional software installed at the remote side. Fully configurable. Provides instant report (via HTML page), logs, statistics and sound alarm
Balbec is a visualization addon for nagios. It displays host and service info either in html for the enduser or in xml for further processing. As Balbec uses nagios hostgroups it's not necessary to maintain a complex seperate configuration.