Open Source Windows Logging Software

log4cplus is a simple to use C++ logging API providing thread-safe, flexible, and arbitrarily granular control over log management and configuration. It is modelled after the Java log4j API.

syslog-ng is the log management solution that improves the performance of your SIEM solution by reducing the amount and improving the quality of data feeding your SIEM. With syslog-ng Store Box, you can find the answer. Search billions of logs in seconds using full text queries with Boolean operators to pinpoint critical logs. syslog-ng Store Box provides secure, tamper-proof storage and custom reporting to demonstrate compliance. syslog-ng can deliver data from a wide variety of sources to Hadoop, Elasticsearch, MongoDB, and Kafka as well as many others. syslog-ng flexibly routes log data from X sources to Y destinations. Instead of deploying multiple agents on hosts, organizations can unify their log data collection and management. syslog-ng Store Box provides automated archiving, tamper-proof encrypted storage, granular access controls to protect log data. The largest appliance can store up to 10TB of raw logs.

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.

New version 1.03 is released! Check it out. LogEngine is a C++ library for easy and flexible logging to files. Multithreaded, easy to use and fast. Automatic logfile backup (several modes). A small amount of code. Platform Independent.

LogEngine2 is a C++ header only library for easy and flexible logging. Contains small amount of code in compare with other logging libraries. Just copy the files from include folder to your project folder and use a C++20 compiler. LogEngine2 can load loggers from .lfg file. Examples of .lfg files are included into bundle. LogEngine2 provides various log targets: regular files, rotating log files, console logging, string stream, user custom function. Log line format is easy configurable.

Log Searcher provided full indexed search engine for log files on each servers. It supported many powerful query types such as phrase queries, wildcard queries, proximity queries, range queries and more with Lucene and Solr technology. It comes with Web interface to search and generate chart accordingly. This project is Open Source project with Apache 2.0 license for allowing you to extra development on top of Log Searcher project. The initial configuration was written on readme.txt before implementation on production line. If you have idea for improvement, you can drop an email to me. Contact: log.searcher[at]yahoo.com

Log4net has moved to http://logging.apache.org/log4net. The .NET implementation of the popular log4j Java API providing flexible and arbitrarily granular control over log management and configuration.

IDS via ACL log management, including basic reporting via PHP