Enterprise-class, distributed monitoring solution for networks & apps
ZABBIX is an enterprise-class open source distributed monitoring solution designed to monitor and track performance and availability of network servers, devices and other IT resources. It supports distributed and WEB monitoring, auto-discovery, and more. An enterprise-class distributed monitoring solution for networks & apps
Net-SNMP provides tools and libraries relating to the Simple Network Management Protocol including: An extensible agent, an SNMP library, tools to request or set information from SNMP agents, tools to generate and handle SNMP traps, etc.
A cross-platform network scanner that is fast and simple to use
Angry IP scanner is fast and friendly network scanner for Windows, Linux, and Mac. It is very extensible, allowing it to be used for very wide range of purposes, with the primary goal of being useful to network administrators.
PNP is an addon for the Nagios Network Monitoring System. PNP provides easy to use, easy to configure RRDTools based performance charts feeded by the performance data output of the Nagios Plugins.
Nagios network monitoring software is enterprise server monitoring
Nagios network monitoring software is a powerful, enterprise-class host, server, application, and network monitoring tools. Designed to be fast, flexible, and rock-solid stable. Nagios runs on *NIX hosts and can monitor Windows, Linux/Unix/BSD, Netware, and network devices.
Open Source Monitoring System for performance and availability.
Pandora FMS is an enterprise-ready monitoring solution that provides unparalleled flexibility for IT to address both immediate and unforeseen operational issues, including infrastructure and IT processes. It uniquely enables business and IT to adapt to changing needs through a flexible and rapid approach to IT and business deployment. Pandora FMS consolidates all the needs of modern monitoring (ITOM, APM, BAM) and provides status and performance metrics from different operating systems, virtual infrastructure (VMware, Hyper-V, XEN), Docker containers, applications, storage and hardware devices such as firewalls, proxies, databases, web servers or routers. It's highly scalable (up to 2000 nodes with one single server), 100% web and with multi-tenant capabilities. It has a very flexible ACL system and several different graphical reports and user-defined control screens.
AirSnort is a wireless LAN (WLAN) tool which cracks encryption keys on 802.11b WEP networks. AirSnort operates by passively monitoring transmissions, computing the encryption key when enough packets have been gathered.
Savors is a visualization framework that supports the ingestion of data streams created by arbitrary command pipelines. Any number of data streams can be shown synchronized by time in the same or different views, which can be arranged in any layout. These capabilities combined with a powerful parallelization mechanism and interaction models already familiar to administrators allows Savors to display complex visualizations of data streamed from many different systems with minimal effort.
Ettercap is a multipurpose sniffer/interceptor/logger for switched LAN. It supports active and passive dissection of many protocols (even ciphered ones) and includes many feature for network and host analysis. Development has been moved to GitHub, https://github.com/Ettercap/ettercap
A Java based fault and performance management system
An Enterprise-Grade Network Management Application Platform that is 100% Free and Open Source Software.
NOTE: Downloads at http://www.icinga.org/download/ (github)
Note: Downloads have been moved. See http://www.icinga.org/download/ for details Note: Mailinglists have been migrated. See https://www.icinga.org/support/ for details Icinga is an enterprise grade open source monitoring system which keeps watch over networks and any conceivable network resource, notifies the user of errors and recoveries and generates performance data for reporting. Scalable and extensible, Icinga can monitor complex, large environments across dispersed locations. Icinga is a fork of Nagios® and is backward compatible. So, Nagios® configurations, plugins and addons can all be used with Icinga. Though Icinga retains all the existing features of its predecessor, it builds on them to add many long awaited patches and features requested by the user community.
The Network Forensics Tool
NetworkMiner is a Network Forensic Analysis Tool (NFAT) for Windows that can detect the OS, hostname and open ports of network hosts through packet sniffing or by parsing a PCAP file. NetworkMiner can also extract transmitted files from network traffic. New versions of NetworkMiner are released exclusively on www.netresec.com since version 2.0 of NetworkMiner. This page on SourceForge is only kept to provide hosting of older versions of the software. To get the latest version of NetworkMiner, please visit: http://www.netresec.com/?page=NetworkMiner
The open source virtualization software VirtualBox is lacking an option to run virtual machines as a Windows NT/XP/2003/W7/W8x service entity. VBoxVmService does the trick!
Hybrid IT Monitoring and Analytics Software - SaaS, Virtual, Physical
Zenoss is the global leader in hybrid IT monitoring and analytics software, providing complete visibility for cloud, virtual and physical IT environments for more than 40,000 global organizations. Zenoss customers gain IT performance and risk insights into their unique IT ecosystems through real-time analytics that adapt to the ever-evolving data center and cloud, enabling them to eliminate disruptions and accelerate business. The power of Zenoss Core begins with its in-depth IT inventory and configuration database. Zenoss creates this database by discovering managed resources -- networks, servers, storage, and other devices -- in your IT environment. Once Zenoss Core discovers the IT infrastructure, it automatically begins monitoring the performance of each device and provides event and fault management capabilities. Zenoss offers Open Source Core, Enterprise and SaaS solutions as well as an open API and SDK to easily extend your IT monitoring via Zenoss ZenPacks.
Open source tool to monitor your servers and websites
PHP Server Monitor is a script that checks whether your websites and servers are up and running. It comes with a web based user interface where you can manage your services and websites, and you can manage users for each server with a mobile number and email address. For services a connection will be made to the entered ip or domain, on the given port. This way you can check if certain services on your machine are still running. To check your IMAP service for example, enter port 143. For websites you can enter a link and it will check the HTTP status code. If the HTTP status code is in the 4xx range or a timeout, it means an error occurred and the tool will start sending out notifications. You can also set a regular expression to match for content on the page itself. Each server has its own settings regarding notification. You can choose for email, text message (SMS) and Pushover.net notifications. For more info please visit http://www.phpservermonitor.org
Ganglia is a scalable distributed monitoring system for high-performance computing systems such as clusters and Grids. It is based on a hierarchical design targeted at federations of clusters. Supports clusters up to 2000 nodes in size.
Graphical network monitoring and documentation tool
jNetMap is a graphical network monitoring and documentation tool. It will ping all registered devices every x minutes, updating the status according to the result of the ping. Requires Java 8 or higher
IPMItool provides a simple command-line interface to IPMI-enabled devices through an IPMIv1.5 or IPMIv2.0 LAN interface or Linux/Solaris kernel driver.
NSClient++ is a windows service that allows performance metrics to be gathered by Nagios (and possibly other monitoring tools). It is an attempt to create a NSClient and NRPE compatible but yet extendable performance service for windows.
A network access control (NAC) system featuring a captive-portal for registration and remediation, wired and wireless management, 802.1X support, isolation of devices, integration with IDS; it can be used to secure networks from small to large. Source code is hosted here: https://github.com/inverse-inc/packetfence Issue tracker tracker is hosted here: http://www.packetfence.org/bugs/
nagiosgraph parses output and performance data from Nagios plugins, stores the data in RRD files, and creates graphs and reports from the data. Graphs and reports can be embedded in Nagios. Easy to setup, highly customizable, and few dependencies.
netflow collecting and processing tools
*** This project moved to Github *** https://github.com/phaag/nfdump However, you may want to download older versions from here. nfdump is a set of tools to collect and process netflow data. It's fast and has a powerful filter pcap like syntax. It supports netflow versions v1, v5, v7, v9 and IPFIX as well as a limited set of sflow. It includes support for CISCO ASA (NSEL) and CISCO NAT (NEL) devices, which export event logging records as v9 flows. nfdump is fully IPv6 compatible.
Free Syslog Server for Windows with a graphical user interface
Visual Syslog Server for Windows is a free open source program to receive and view syslog messages. Useful when setting up routers and systems based on Unix/Linux. Visual Syslog Server for Windows has a live messages view: switches to a new received message. Helpful color highlighting. Useful message filtering. Customizable notification and actions. Sources hosted on the GitHub: https://github.com/MaxBelkov/visualsyslog
Full-featured enterprise network management tool
Netdisco is an SNMP-based L2/L3 network management tool designed for moderate to large networks. Routers and switches are polled to log IP and MAC addresses and map them to switch ports. Automatic L2 network topology discovery, display, and inventory.
GPING (Graphical Ping) is a powerful utility that pings and graphs multiple hosts simultaneously over a user-defined polling interval and generates detailed graphs. It comes with plethora of options for novice as well as advanced network engineers.