Open Source Log Analysis Software

DNA is an open, flexible and extensible deep network analyzer software server and software architecture for gathering and analyzing network packets, network sessions and applications protocols, passively off enterprise class networks.

JAVA / PHP / MYSQL IRC Stats Bot based on IRC JAVA BOT. Makes statistics for one or more channels on irc. Make many php page with the stats of channels and the stats of nicks.

Postfix Log Parser in Python is a log analysis tool written in python language to get statistic reports and detect anomalous behaviours on a mail server based on Postfix and Cyrus

Small php script to retrieve, cache and display profile data from the rss feed at http://www.audioscrobbler.com/.

IP traffic accounting on CISCO routers.

GALProxy is a multithread proxy server written in java. It can elaborate all upcoming requests from most common browsers. It can be used in a LAN in order to concur the sharing of an Internet connection; it implements local caching, content filtering an

A simple yet useful tool for browsing instant messenger log files (like Trillian, ICQ or Gaim) and also HTML server log files. It has some interesting search modes and provides functionality that most messengers don't.

imsniff is a pcap-based instant messaging sniffer. It captures the IM traffic in the network and is able to log conversations, contact lists, profile information, incoming email notifications, other MSN events, etc. Tested in Linux and Windows.

eggdrop log analysis program and statistics generator written in PHP

Jalli is a little java-based converter for chatlogs. At the moment it supports Pidgin, Empathy and mcabber. But there will follow many - platform-independant - others, I believe.

MailFilter Web Utilities: A PHP based solution to analizing mailfilter's log files and editing mailfilterrc.

pils is Perl IRC logging system, a utility for connecting to an IRC daemon and collecting data utilizing a relational database for storage and a web interface for data retrieval, processing, and display.

Qmail-Scanner Statistics (QSS) uses the Qmail-Scanner Logfile to generate daily, monthly, and yearly statistics. It also shows a complete list of viruses stopped by Qmail-Scanner, the top five domains from which the viruses came, as well as the countries

Develop cross-platform tools faster using a C++ Framework proven in commercial software. Classes support logging, sockets, RFC servers (NNTP, SMTP, POP, HTTP), object indexing, ini, tagged databases, file systems, and more. The STDNOJ Namespace, by R.A. Nagy

This project was originally created to allow Technical Support personnel to troubleshoot problems with customers logging into their e-mail. It was written to work with VPOPMail when the VLOG, database logging feature, is turned ON.

Gathers data from vpopmail domain and user usage, stores in mysql, and displays a list by user and domain, current quota, quota usage, last time/date of auth, last auth ip, aliases pointing at the address, and aliases pointing to external domains.

X-Itools: eXtended Internet Tools. Suite of tools composed of several collaboration modules. Old and initial project born in 1999, 1st published in 2001 on Sourceforge. X-Itools E-mail management module (log analysis) initiated in 2004 with Web 1.0 technologies (private SVN server). X-Itools development restarted since 2011, on the basis of a unique module: E-mail management module (log analysis). Now based on web 2.0 technologies (ExtJS 4.1) and devel restarted because of a particular interest given to it by a world wide Organization (United Nations). Module renamed "X-Itools ELSE", for "X-Itools E-mail Log Search Engine". Some features: Log analysis and correlation of Postfix and Exchange servers, statistics, policy manager, in-deep analysis, automated network graphs for e-mail tracing, CSV export... The Swiss knife of Messaging Admins. In 2015, X-Itools ELSE is no more limited to E-mail logs: Apache logs are also processed and related stats and dashboards will be there!

An advanced mailing list manager for webmasters.

chill is a heavy-module-based web-application with a core supporting many features. writing own modules for... everything. modules for webmail, firewall/router-administration, server-administration are planned natively.

exim2awstats is a PHP script that can translate the log files from the Exim MTA (http://exim.org) into a format that can be used by the log analyzer AWStats (http://awstats.sourceforge.net).

Produces HTML statistics from Trillian logs.

irclog-xml converts IRC chat logs to xml and HTML. Currently supported chat log formats are: BitchX, Mirc, and Xchat.

This is a Python script to parse your irssi logs and input them into a MySQL database which you can then use to search and display your logs on the web. It incrementally updates the database from the logs and is ideally run as a cronjob often.

This module converts the log files of your eggdrop to the html format. It also creates a page-calendar with links to that created files.

mxOwl is a mail server analysis tool. It consists of information gatherers and a web frontend.