Open Source Linux Logging Software - Page 2

Serial line sniffer (slsnif). slsnif is a serial port logging utility. It listens to the specified serial port and logs all data going through this port in both directions.

Extract internal monitoring data from application logs for collection in a time-series database. mtail is a tool for extracting metrics from application logs to be exported into a timeseries database or timeseries calculator for alerting and dashboarding. It fills a monitoring niche by being the glue between applications that do not export their own internal state (other than via logs) and existing monitoring systems, such that system operators do not need to patch those applications to instrument them or writing custom extraction code for every such application. The extraction is controlled by mtail programs which define patterns and actions. Metrics are exported for scraping by a collector as JSON or Prometheus format over HTTP, or can be periodically sent to a collectd, StatsD, or Graphite collector socket. Precompiled binaries for released versions are available in the Releases page on Github. Using the latest production release binary is the recommended way of installing mtail.

LKL is a userspace keylogger that runs under Linux on the x86 arch. LKL logs everything that passes through the hardware keyboard port (0x60). It translates keycodes to ASCII with a keymap file.

A simple keylogger written in python. It is primarily designed for backup purposes, but can be used as a stealth keylogger, too. It does not raise any trust issues, since it is a set of [relatively] short python scripts that you can easily examine.

Please note that OWFS source code, and all Issue/Tickets/merge requests have now been moved to https://github.com/owfs/owfs/. Developer mailing lists will still be kept at Sourceforge. ---- OWFS -- 1-Wire file system. Use the Dallas 1-Wire and iButton chips with standard filesystem commands. Create temperature loggers. Monitor everything. OWHTTPD -- same system, only used as a light weight web server. OWFS is also ported to embedded routers, Mac OSX and Windows. Basically you can use these inexpensive little sensors and other chips with very simple wiring to sense and control the physical environment. The interface is very flexible -- everything from a web browser, to read and writing directly to the chip's "file" to integrating with your programs -- even over the internet. There is a growing number of 1-wire sensors: temperature, voltage, humidity, light, ultraviolet, pressure, thermisters, thermocouples, programmable microcontrollers, relays, lights, LCD panels, etc

Big Sister is an SNMP aware network and system monitor

pcapsipdump is libpcap-based SIP sniffer with per-call sorting capabilities. It writes SIP/RTP sessions to disk in a same format, as "tcpdump -w", but one file per SIP session (even if there is thousands of concurrent SIP sessions). Getting started: http://pcapsipdump.sf.net/

G15daemon provides support for the G15 keyboard. Multiple LCD clients are supported with a 'virtual' LCD buffer for applications or libraries, and all keys are usable. Users flip through connected screens with a press of a button.Linux, OS-X & Solaris

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.

Hyperic is application monitoring and performance management for virtual, physical, and cloud infrastructures. Auto-discover resources of 75+ technologies, including vSphere, and collect availability, performance, utilization, and throughput metrics.

Logsurfer is a program for monitoring system logs in real-time, and reporting on the occurrence of events. It is capable of grouping information together to enhance loganalysis and create automatic reports.

tcpick is a textmode sniffer; it tracks tcp streams, shows the status, reassembles and saves the data captured in files or displays them in the terminal in different modes (ascii, hex..). There is a color-mode. Useful to get files passively.

Google Logging (glog) is a C++98 library that implements application-level logging. The library provides logging APIs based on C++-style streams and various helper macros. glog supports multiple build systems for compiling the project from source, Bazel, CMake, and vcpkg. glog also supports CMake that can be used to build the project on a wide range of platforms. If you don’t have CMake installed already, you can download it for from CMake’s official website. CMake works by generating native makefiles or build projects that can be used in the compiler environment of your choice. You can either build glog with CMake as a standalone project or it can be incorporated into an existing CMake build for another project. glog defines a series of macros that simplify many common logging tasks. You can log messages by severity level, control logging behavior from the command line, log based on conditionals, abort the program when expected conditions are not met, etc.

Bash script that enables you to aggregate (tail/follow) logs from multiple pods into one stream. This is the same as running "kubectl logs -f " but for multiple pods. Just download the kubetail file (or any of the releases) and you're good to go. Note that you may need to run compinit for zsh to pick-up the changes in the competition after having upgraded from the non-abbreviated installation. If you're using a ZSH plugin manager, you can install kubetail as a plugin. kubetail itself doesn't have filtering or highlighting capabilities built in. If you're on MacOSX I recommend using iTerm2 which allows for continuous highlighting of search terms, good scrolling capabilities, and multitab arrangements. Another useful feature of iTerm2 is the "timeline" (cmd + shift + e) which lets you display a timeline in your own local timezone next to the logs (that are typically in UTC).

Monolog sends your logs to files, sockets, inboxes, databases and various web services. See the complete list of handlers below. Special handlers allow you to build advanced logging strategies. This library implements the PSR-3 interface that you can type-hint against in your own libraries to keep a maximum of interoperability. You can also use it in your applications to make sure you can always use another compatible logger at a later time. As of 1.11.0 Monolog public APIs will also accept PSR-3 log levels. Internally Monolog still uses its own level scheme since it predates PSR-3. Tidelift delivers commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. Monolog 1.x support is somewhat limited at this point and only important fixes will be done. You should migrate to Monolog 2 where possible to benefit from all the features.

Like many other libraries for .NET, Serilog provides diagnostic logging to files, the console, and elsewhere. It is easy to set up, has a clean API, and is portable between recent .NET platforms. Unlike other logging libraries, Serilog is built with powerful structured event data in mind. Serilog message templates are a simple DSL extending .NET format strings. Parameters can be named, and their values are serialized as properties on the event for incredible searching and sorting flexibility. Serilog is a diagnostic logging library for .NET applications. It is easy to set up, has a clean API, and runs on all recent .NET platforms. While it's useful even in the simplest applications, Serilog's support for structured logging shines when instrumenting complex, distributed, and asynchronous applications and systems.

When logging, it's important to use the least amount of resources available. Over time, logged messages tend to pile up. This can lead to some negative effects on applications, such as reduced requests per second. This is why pino is an ideal choice for logging. pino is a very fast Node.js logger with very low overhead. It is in many cases 5x faster than alternatives, based on benchmarks. pino offers not just speed but a number of great features as well, such as a browser API, child loggers, transports, and pretty printing, which "prettifies" your logs.

"Java log viewer" is a GUI to easily view the java application logs generated by the "java.util.logging" package. The log must be formatted by the XMLFormatter class. It provides facilities in order to filter, to sort and to find log records.

[ 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.

mtop (MySQL top) monitors a MySQL database showing the queries which are taking the most amount of time to complete. Features include 'zooming' in on a process to show the complete query and 'explaining' the query optimizer information.

Mysql Monitor Tool is a useful application to monitor multiple Mysql server instances. Its simple and effective user interface allows you to track the health of your servers, check parameters and visualize trends via real time charts.

pgBadger is a PostgreSQL log analyzer built for speed with fully detailed reports from your PostgreSQL log file. It's a single and small script written in pure Perl language. It uses a javascript library to draw graphs so that you don't need additional Perl modules or any other package to install. Furthermore, this library gives us more features such as zooming. pgBadger is able to autodetect your log file format (syslog, stderr or csvlog). It is designed to parse huge log files as well as gzip compressed file.

Cinemagoer is a Python package useful to retrieve and manage the data of the IMDb movie database about movies, people, characters and companies. Platform-independent, it can retrieve data from both the IMDb's web server and a local copy of the whole db.

xrootconsole tails a file in a window on your X11 root window. It aims to be as simple and resource-light as possible, within reason: it should run smootlhy on a P133 laptop. The program is non-interactive; all configuration is done on the command line.

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