Justniffer 0.5.6

Justniffer 0.5.6 is a useful utility that can log network traffic in a 'standard' (web server like) or in a customized way.

It can also log response times, useful for tracking network services performances (e.g. web server, application server, etc.)

Justniffer was born to help in toubleshooting perfomance in network tcp based services : HTTP, JDBC, RTSP, SIP, SMTP, IMAP, POP, LDAP, etc. It can collect low and hight level protocol and performance info reconstructing the tcp flow in a reliable way using portions of the Linux Kernel code. Precisely, it uses a slightly modified version of the libnids libraries that already include a modified version of linux kernel code in a more reusable way.

You can extend traffic analisys with external scripts (bash, python, or any executable). An example is provided: justniffer-grab-http-traffic script use justniffer to saves files (images, text, html pages, javascript, flash, video, etc) captured from HTTP traffic. Justniffer can generate logs in a customizable way. For example it can mimic the apache access_log 

Major Features:

1. TCP flow rebuild: very reliable: it can reorder, reassemble tcp segments and ip fragments using portions of the Linux kernel code
2. Logging: text mode: can be customized
3. Extensibility: by any executable, such as bash, python, perl scripts, ELF executable, etc.
4. Performance measurement: it can collect many information on performances: connection time, close time, request time , response time, close time, etc