Open Source C Log Analysis Software

Sarg - Squid Analysis Report Generator is a tool that allow you to view "where" your users are going to on the Internet. Sarg generate HTML reports, with informations about users, IP Addresses, bytes, sites and times.

OSSIM, AlienVault’s Open Source Security Information and Event Management (SIEM) product, provides event collection, normalization and correlation. For more advanced functionality, AlienVault Unified Security Management (USM) builds on OSSIM with these additional capabilities: * Log management * Advanced threat detection with a continuously updated library of pre-built correlation rules * Actionable threat intelligence updates from AlienVault Labs Security Research Team * Rich analytics dashboards and data visualization

SSHGuard protects hosts from brute-force attacks against SSH and other services. It aggregates system logs and blocks repeat offenders using several firewall backends, including iptables, ipfw, and pf.

Free-SA is logs processor and report generating tool. It can be used to control traffic usage, to evaluate conformance to the Internet access security policies, to investigate security incidents, to evaluate web server efficiency and to detect troubles with server configuration.

This is dhcpd-pools ISC dhcp shared network and pool range usage analysis. Purpose of command is to count usage ratio of each IP range and shared network pool which ISC dhcpd is in control of. Users of the command are most likely ISPs and other organizations that have large IP space. Program is written C. Design goal is to get analysis done quickly where there is lots of data. On cheap laptop the speed of analysis is roughly 100k leases per second. Number of ranges, or shared networks, does not make any significant difference in getting analysis done.

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.

ModLogAn is a modular logfile analyzer which is able to generate reports based on 15 different inputformat from variuos sections (http, ftp, mail, firewall, isdn, ...). As a special feature it can combine multiple inputfiles from clustered servers.

this tool tries to repair your broken pcap and pcapng files by fixing the global header respectively packet blocks and recovering the packets by searching und guessing the packet headers or blocks

IPAC-NG is the iptables/ipchains based IP accounting package for Linux. It collects, summarizes, and nicely displays IP accounting data. Ipchains and (preferably) iptables are supported. Logs are stored in files, a gdbm or a PostgreSQL database.

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.

IPCAD runs captures traffic on the specified interfaces (BPF, PCAP, divert, tee, ULOG, IPQ), and records the traffic for later retrieval and analysis. Traffic exported via RSH or NetFlow.

ipac is an ip accounting package for linux. It collects, summarizes and nicly displays ip accounting data. The output of ipac can be a simple ascii table or graph images.

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.

GoAccess is a real-time Apache web log analyzer and interactive viewer that runs in a terminal and provides fast and valuable HTTP statistics for system administrators that require a visual report on the fly.

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.

ATTENTION: Snare Lite is unsupported legacy software. While it will remain a part of the SourceForge community, it is no longer secure and compliant. For up to date Snare software check out Snare Enterprise. https://www.snaresolutions.com/try-snare-for-free/ Snare Enterprise was created to keep up with the fast paced security software market. It started with the desire to create premium logging and SIEM tools that were agnostic by nature so they could be used to boost any SIEM architecture regardless of third party developers. In fact, the agnostic nature allows it to bridge gaps between multiple SIEM implementations across business units. For more on use cases, check out the Intersect Alliance website. https://www.snaresolutions.com/ Snare Enterprise’s premium features include: - Regulatory Compliance - TLS Encryption - Log Simulcasting - TCP – Guaranteed Log Delivery - USB Device Monitoring - And more! For updates follow us on social media!

Logdigest mails interesting lines from log files to the system administrator. Non-relevant lines are filtered out by customizable regular expressions. Logdigest comes with a set of such regexps to provide a good starting point.

AccounteX is an IP accounting system based on the IP Stat program. It has many exciting features like fully customizable web traffic accounting and user access control by many different values. information service and web statistics and administration.

Alfred, OpenSource Internet Software, is a collection of utilities that bring Quota support to SQUID. Alfred has been used in a large high school for several years now, and is working without a hitch.

The Mac OS X Port of analog which has been specially rewritten into ObjC code to take advantage of Cocoa. The rewrite will also incorporate new features not found in the console version. Includes a graphical interface, support for XML property lists. .

This filter allows Apache log files to converted from one time zone to another. This is especially useful if you are using a hosting service that produces its logs in another timezone and you want to make sense of your log statistics.

BCLF is the Binary Common Log Format, a fast, platform independent, streamable, compact logging format that resembles the Extended CLF logging format in content. The project goal is to make an Apache module and enhance the format without giving up speed.

The Big Brother Log Analyzer (BBLA) is a package consisting of an HTTP logger and of a log analyzer. It provides a lightweight and free solution (with no banners!) for individual users and/or systems administrators willing to track their audience.

Bruteblock allows system administrators to block various bruteforce attacks on UNIX services. The program analyzes system logs and adds attacker's IP into IPFW table effectively blocking them. Addresses are removed from the table after expiration period