Open Source Logging Software

Fluent Bit is a super-fast, lightweight, and highly scalable logging and metrics processor and forwarder. It is the preferred choice for cloud and containerized environments. A robust, lightweight, and portable architecture for high throughput with low CPU and memory usage from any data source to any destination. Proven across distributed cloud and container environments. Highly available with I/O handlers to store data for disaster recovery. Granular management of data parsing and routing. Filtering and enrichment to optimize security and minimize cost. The lightweight, asynchronous design optimizes resource usage: CPU, memory, disk I/O, network. No more OOM errors! Integration with all your technology, cloud-native services, containers, streaming processors, and data backends. Fully event-driven design leverages the operating system API for performance and reliability. All operations to collect and deliver data are asynchronous.

swatchdog.pl started out as swatch, the "simple watchdog" for activity monitoring log files produced by UNIX's syslog facility. It has since been evolving into a utility that can monitor just about any type of log. The name has been changed to satisfy a request made by the old Swiss watch company.

Screen squid is web-based interface for viewing reports based on Squid proxy server log files. It can be accessed from web-browser through more than 50 reports. No extra files, only DB. All reports generated "on-the-fly". And we got personal cabinet for each user/group.

[ set status to abandon - volunteers welcome ] The postfix-logwatch / amavis-logwatch log analyzers produce summaries, reports and statistics regarding the operation of postfix and amavis. Use standalone, or as a filter module for the open source logwatch utility.

Logs Analyzer, Alerter & Reporter with a Web Interface

The ProM Import Framework allows to extract process enactment event logs from a set of information systems. These can be exported in the MXML format, which is the standard event log data format for Process Mining analysis techniques.

Logrep is a tool for collection and presentation of information from various logfiles including snort, squid, postfix, apache, sendmail, iptables/ipchains and nt eventlogs. HTML-reports, multi dimensional analysis, ssh and graphs are available.

SRG is a log file analyser and report generator for the Squid web proxy. It is fast and was created to allow easy integration with other authentication systems. SRG is flexible and can report right down the the level of individual files requested.

ttyrpld is a multi-OS kernel-level TTY keylogger and screenlogger with (a)synchronous replay support. It runs on Linux, Solaris, FreeBSD, NetBSD and OpenBSD.

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.

Lire is a pluggable log analyzer, supporting HTTP, email, DNS, FTP, firewall and print services. Output generated can be txt, (X)HTML, PDF, RTF, and DocBook. The latter four support graphics. For news/support visit the project homepage.

NXLog is a modular, multi-threaded, high-performance log management solution with multi-platform support. In concept it is similar to syslog-ng or rsyslog but is not limited to unix/syslog only. It can collect logs from files in various formats, receive logs from the network remotely over UDP, TCP or TLS/SSL . It supports platform specific sources such as the Windows Eventlog, Linux kernel logs, Android logs, local syslog etc. Writing and reading logs to/from databases is also supported. The collected logs can be stored into files, databases or forwarded to a remote log server using various protocols. The old BSD Syslog and the newer IETF syslog standard is fully supported by NXLog in addition to Snare, XML, JSON, GELF, KVP, CSV and custom formats. A key concept in NXLog is to be able to handle and preserve structured logs. No need to convert everything to syslog and parse these logs again at the other side. It has powerful message filtering, log rewrite and conversion capabilities.

An eclipse plugin providing tail in view component.

FW1-Loggrabber is a command-line tool to grab logfiles from Checkpoint FW-1 remotely using Checkpoints LEA (Log Export Api), which is one part of Checkpoints OPSEC API.

monitors logfiles and displays in realtime. log messages may be formatted with different fonts and colors, contents can be parsed, reformated, may even trigger actions playing sounds or executing shell commands. Log can be viewed remotely via webbrowser.

Logpp is a tool for preprocessing event logs and feeding relevant data to other programs for storing or in-depth analysis. Logpp reads lines appended to input files, matches the lines with patterns, and writes the results to given destinations.

SrvReport is a simple and featurefull server monitoring and reporting system. It will send every day a mail with the latest state of the server including traffic (via /proc/net/dev and/or iptables), cpu, mail, http, ftp reports and other logs.

TailBlazer is a graphical version of the UNIX 'tail' utility. It allows you to monitor log files as they are written. New lines appear as they are written. TailBlazer takes this a step further by supporting pattern matching, filtering, and notification

Configurable Caching Logresolver.

Epilog is a multi-file logging program written in C using GTK+ capable of doing log coloring according to key words and doing reports.

IP Traffic Volume: Logs (counts) in- & outgoing bytes through network device(s) using kernel iptables. Highly configurable as to which bytes are logged, e.g. to/from specific ports or ip-addresses. Data displayed in html via cgi or plain ascii to console

Kojoney is an easy of use, secure, robust and powerfull Honeypot for the SSH Service written in Python. With the kojoney daemon are distributeds other tools such as kip2country (IP to Country) and kojreport, a tool to generate reports from the log fi

MakeLogic Tail is an advanced "tail -f" command with GUI. It needs JRE 5.0, hence it is 'Tail for Windows', Linux or 'Tail for Mac'. It shows the last few lines of a growing log file in real time. Provides many more easy to use features. Try it!

Nuhe is a log monitoring system, which is capable of alarm generation and action when rules are matched against log(s) activity.

The Secure Remote Log Monitor (SRLM) project provides client and server utilities that collect application or system log files from multiple systems over an untrusted network onto a central server for analysis and action.