Network Management

An open source network monitor project written in C++.

God, written by Tom Preston-Werner, is a Ruby based network monitoring tool.

Zenmap Network Topology provides an interactive, animated visualization of the hosts on a network and connections between them.

Centreon is an open source network monitor build upon the Nagios software engine.

ZABBIX is an enterprise-class open source distributed monitoring solution.

Nagios® is a comprehensive and fully featured host and service network problem monitoring system.

JFFNMS is a Network Management System designed to mantain a IP/SNMP/Syslog/ Tacacs+ Network but can also be used to monitor any standards compliant SNMP device, Server, TCP port, or Custom Poller. Supports some Cisco routers/switches.

Sysmon is a high performance, accurate network monitoring tool.

PIKT® is a cross-categorical toolkit for monitoring and configuring systems, organizing system security, formatting documents, assisting command-line work, and performing other common systems administration tasks.

Zenoss is an enterprise-grade open source monitoring platform. Zenoss products provide application, server, and network management capabilities built on the python-based Zope application server.

OpenNMS is a project that attempts to replicate an enterprise grade Network Management System (NMS) like HP OpenView. The software provides network and system monitoring, trouble ticketing, asset management and rudimentary network mapping.

A framework network management system. you can either use it stand alone or integrate with HP OpenView maps.

Another network management system on steroids. I doubt any SME is going to use BMC, but hey you never know.

I doubt many people haven’t heard of OpenView. It is debatable whether it is a SME tool but maybe some SMEs have very deep pockets.

Nemesis is a command-line network packet crafting and injection utility for UNIX-like and Windows systems built on top of NMap.

A range of products for traffic generation and network simulation.

A network appliance, based upon the Zenoss open source network management project, in an easy to deploy hardware form factor.

A plug and play appliance with good network mapping ability.

SNMPSTAT is network-monitoring system, designed to monitor standard network routers, switches and firewalls using SNMP

Big Sister monitors systems, tracks current status and status change history, and triggers alarms.

NodeWatch is a network monitoring polling tool. It logs connectivity changes and performs user defined commands.

Autostatus is a network and server monitoring program designed to support large complex networks.

RRDTool (Round Robin Database Tool) is a system to store, display and graph time-series data. Many open source network management tools are built upon the functionality provided by RRDTool.

HotSaNIC (Html overview to System and Network Information Center) consists of a set of perl-scripts built on Tobias Oetiker’s rrdtool to generate graphical system-statistics.

NRG is a system for maintaining and visualizing network data and other resource utilization data.

Torrus is designed to be the universal data series processing framework. Its scalable hierarchical design, application-independent core, and highly customizable architecture make Torrus an attractive choice both for small installations and for big enterprise or carrier networks.

RTG is a flexible, scalable, high-performance SNMP statistics monitoring system.

Cacti is a complete frontend to rrdtool, it stores all of the nessesary information to create graphs and populate them with data in a MySQL database. The frontend is completely PHP driven.

A commercial MRTG derivative, with all of the nice bits about MRTG but easy to install and configure.

A mature network monitor with an extensive range of server tests and a wide range of alerting options.

A web based network monitoring application running on Microsoft Windows. A distributed edition is available.

An online magazine devoted to SNMP.

An online information centre for network management information. The focus is on SNMP and Internet management.

A console based IP LAN monitor which can be combined with rrdtool to provide per protocol network

OURMON: ethernet promiscuous mode packet capture and analysis system.

High quality SNMP portal, featuring articles and resources.

A packet injection engine for both *nix and windows.

A python wrapper library for both libpcap and winpcap.

A perl wrapper for the libpcap library.

WinPcap is the industry-standard tool for link-layer network access in Windows environments: it allows applications to capture and transmit network packets bypassing the protocol stack, and has additional useful features, including kernel-level packet filtering, a network statistics engine and support for remote packet capture. All well known open source networking tools like Ethereal, ntop, nmap, snort and windump use winpcap.

A commercial software friendly version of the famous WinPCAP open source packet capture library.

The Distinct Network Packet Sniffing Toolkit is for software developers who need to integrate specialized features in their applications that require capturing of network traffic. The following languages are supported: C#, C++, and VB (Visual Basic).