* IT Search
o Paglo discovers everything IT and allows users to search and monitor their server, network, user, and configuration information. The Paglo Crawler is open source and it is free to get started with the service.
o Splunk allows you to search and navigate IT data from applications, servers and network devices in real-time. It includes logs, configurations, messages, traps and alerts, scripts, code, and metrics
* Keynote Systems is a supplier of software and services for measuring and managing the responsiveness of web-based applications. KeyNote RedAlert is aWeb site monitoring service that can perform end-to-end checks of your a site every 5 or 15 minutes. It can also monitor DNS, email, news & telnet servers.
* MeasureNet.
* MeterWare for Windows 95/NT & UNIX from Technically Elite.
* Metrica Network Performance Reporting (NPR) is a performance monitoring toolset being used by telecoms operators to manage the quality of service and the capacity of their networks.
* NATManager.
* NEPM (Network Equipment Performance Monitor is a two part software system that captures and analyzes logged performance data from IP networked equipment and reports it via e-mail and web pages. It can be hosted on either a Unix or WinNT system or a combination of these.
* NetArx Network Monitoring System monitors client systems and reports information to the Netarx Network Operations Center ("NOC"); a fully staffed vault operating 24 hours a day. The NOC notifies on-site contacts of service failures and proactively detected potential problems.
* Network Tools has a suite of online IP and DNS tools that can be run both locally and remotely to check for any Network Errors.
* NetPredict helps you monitor, predict and optimize the performance of distributed business applications.
* Network Health family from Concord.
* NetMedic.
* Net-One-1, monitors your company's network devices 24 hours a day, seven days a week.
* NetOps provides a set of tools for monitoring, logging and reporting network status, focussing on preventive maintenance.
* NetReality provides monitoring and QoS shaping on all OSI layers, from 1 - 7 on WAN links. Real-time and historical reports are provided.
* NetScout Drawing on information generated by NetScout's application-aware probes, intelligent active agents and data collected directly from network devices strategically placed throughout the WAN, SAN, and LAN, the nGenius Performance Management System monitors, troubleshoots, performs capacity planning and reports on the application traffic flowing across the network.
* NextPointS3 provides the ability t define, measure, baseline and report on service levels at many levels from the core network to end user applications.
* PingGraph is a multi-threaded graphical TCP/IP network monitoring and diagnostic tool for Windows 95 and NT.
* Procom+ ISDN/Modem monitoring
* ResponseNetworks provides tools for network service level monitoring and measurements.
* RIPmon provides remote monitoring over IP networks using an agent that physically connects to and communicates with any element through LAN ports, serial ports and/or contact closures. Once connected the agent units interact with the device in native format and translate user queries into SNMP and HTTP responses.
* ROMmon develops easily deployable online network performance metric (passive and active) monitoring system for networking professionals. The system's emphasis are on data aggregation, high availability and high scalability.
* SAA Service Assurance Agent built into Cisco IOS release 12.0(5)T allows measuring response time, net resources, availability, jitter, connect time, packet loss and application performance.
* SftpDrive Maps any SSH server as a Windows network drive. Provides transparent and secure integration of the remote filesystem into Windows without requiring additional server software or configuration.
* Silverback's InfoCare delivers real-time and historical information on faults, assets, performance and security across networks, systems and applications through a unified Web-based interface.
* SNMP Tools:
o AdventNet SNMP API can be used to build system management, application management and network management applications and applets. It includes class libraries and Java beans for Java SNMP development, as well as a complete MibBrowser for interacting with SNMP enabled devices. The AdventNet Agent Toolkit Java Edition provides a complete GUI-based development environment to build standalone SNMP agents, Multi-Protocol agents, and standalone TL1 agents. Also see AdventNet ManageEngine JMX Studio a 100% Java-based development environment that provides Java, J2EE, and EAI middleware application developers, the ability to build JMX and SNMP-based manageability for their applications. It also comes with options for other protocol adaptors like HTML, RMI, CORBA, SOAP, and AMI adaptor for plugging into different types of management consoles.
o Denika Performance Trender is a trending tool that collects and graphs SNMP details for interface utilization, CPU, Memory, Disk Space, Frame Relay, Database Resources, QoS, Port Errors etc.
o LoriotPro a generic SNMP manager
o MIW Multiple Interface Watcher is a graph utility that shows the utilisation of up to 20 different interfaces. The data is requested from the devices using SNMP. MIW is an advanced development of Interface Traffic Indicator that focuses more on the utilization overview of many interfaces than on much information of one interface.
o OidView is a modular network management analysis tool that uses the SNMP protocol to talk to various agents and devices on a computer network, offering a variety of plug-in modules like a MIB Browser, MIB Manager, Trap Manager, PDU Capture, etc.
o NetVoyant Provides SNMP-based performance metrics for managing network infrastructure, devices, and services
o Open NerveCenter is a network management platform, based on SNMP, that is extensible using PERL. NerveCenter correlates events in real time from network and security devices, UNIX and NT systems and applications to improve availability, performance and security.
o OPENXTRA has a set of SNMP utilities.
o Quallaby provides PROVISO 2.0, network monitoring and service assurance solution for network service providers.
o SNMP Explorer provides a tree view of your SNMP managable devices, provides a way to talk to or from the devices, provides a flexible log of transactions, and permits you to transact with the devices with simple yet powerful scripts.
o SNMP Informant is installed on Windows hosts to enable them to provide SNMP information.
o SNMP Research
o SNMP Sweep Engineer's Toolset queries an IP address range to determine which IP addresses are used and which are unused.
o TrapBlaster SNMP trap management engine that receives, filters and converts SNMP traps. They may then be forwarded to your network management applications.
o Unbrowse SNMP. A visual SNMP MIB browser, compiler, walker.
o WinTDS monitors IP-SNMP devices and gives a variety of real-time views of the network status.
o XRate1 SNMP based network monitoring with statistical tags and OPC Server available.
* Shiva Network Manager
* Shiva InterNet Manager
* StatScope from IP Sciences is an outsourced service providing a customized IP network monitoring and reporting capability.
* TelAlert from CalAmp a package for enunciating alerts and managing via pagers, email, pop up windows etc.
* Third Watch Server Monitor will allow you to monitor all of your critical servers and services on an IP network and be notified of any changes in their status. It is a server monitoring program using TCP/IP. It can monitor via Ping, HTTP, FTP or any other TCP/IP port.
* Topology/Traceroute based tools
o EdgeScape from Akamai, maps user IP addresses to their geographic and network point of origin. This information is assembled into a vast knowledge base and made available to Edgescape customers.
o GeoBoy Allows you to view traces on a flat map or 3D globe. Incorporate geographical features such as cities, rivers, and political boundaries. Zoom in on areas of interest. Save and restore trace data. Rotate and manipulate maps. Update and customize geographical location cache files.
o NeoTrace provides graphical traceroute information.
o PingPlotter is an enhanced traceroute program for Windows 95/98/NT/W2K/XP.
o Route Explorer provides visibility, analysis and diagnosis of IP networks from a routing point of view
o SMARTHawk from Solana Networks is an IP network monitoring and diagnostics tool focused on topology, routing and qos
o VisualRoute a GUI based traceroute for Windows.
* Triticom has software based network protocol analyzers, LAN traffic monitors, RMON probes, and an SNMP manager.
* USR Total Control.
* View2000 runs under Windows NT and has the ability to monitor multi-vendor network equipment configurations, using flat file databases for speed and Oracle RDBMS for SQL report queries, and NOT using SNMP.
* Viola Networks provides NetAlly and other tools that include a suite of tests to provide "true" Service Level Management (SLM), the ability to audit policies and Quality of Service (QoS), and automatically conduct preventive maintenance tests to discover hidden problems in the network.
* VisualPulse from DataMetrics provide realtime and historical reports on RTT & loss.
* Vivere Networks have a wireless sensor that monitor and analyze multi-AP topologies in real-time, including 802.11 packets for all access points in range as well as other IP network traffic.
* VoIP (Voice over IP)
o ACE Live VoIP Monitoring module supplies real-time and historical data in a business context including both application performance and call quality.
o Apparent Networks Uses standard protocols (ICMP and/or UDP) to transmit small packet configurations across the actual path the application takes. These packets vary in size, pattern, and spacing to fully characterize the network path. Detects signatures used to identify the likely cause of the problem, including MTU mismatch, QoS mismatch, duplex mismatch, media errors, path congestion, excessive packet reordering, etc.
o NetQoS VoIP Monitor Network-based call setup and call quality monitoring product that tracks the call quality users experience, provides alerts on call performance problems, and isolates performance issues to speed troubleshooting and MTTR.
o Orion VOIP Monitor proactively analyze VoIP quality across WAN links, as well as monitor the underlying systems and protocols that the VoIP environment relies upon.
o Prognosis provides systems management software for performance monitoring of IP telephony, VOIP, availability, network management, Windows, UNIX and Linux.
o QOVIA provides Voice over IP monitoring and management, sends alerts when it predicts call quality will be affected.
o Telchemy provides Voice over IP (VoIP) passive call quality monitoring and active Quality of Service (QoS) management. Designed specifically to be embedded into VoIP end-systems, management devices and DSPs, Telchemy's non-intrusive monitoring technology, VQmonTM, is the only technology to model time-varying impairments and their effects on end-user-perceived quality in real-time.
o ZTI provide LANTraffic V2 and IP Traffic Test & Measure software testing tools for automatic generation of TCP and UDP traffic.

Public Domain or Free Network Monitoring Tools [Contents]
Application Monitoring | BGP | Finger Printing | Flow Monitoring | FTP | Host based network monitoring tools | Mapping | Monitoring Infrastructures | Packet Capture/Analysis Tools | Path Characterization | Ping | RRDtool | SNMP | Throughput tools | Traceroute

* ANL Web100 based Network Configuration Tester tests the reliablity and operational status of your network link.
* Application Monitoring
o Alvias provides free monitoring of HTTP, TCP/IP port, ping, SMTP, POP# FTP, web page defacements from multiple networks around the world.
o H.323 Beacon is a tool that can be used to measure, qualify and troubleshoot performance of H.323 Videoconference sessions both at the network and host levels (end-to-end)
o Hobbit Monitor monitors hosts, network services, and anything else you configure it to do via extensions. Hobbit will periodically generate requests to network services - http, ftp, smtp and so on - and record if the service is responding as expected. Through the use of agents installed on the servers, you can also monitor local disk utilisation, logfiles and processes.
o MossHe (Monitoring with SSH Environment) is a simple, lightweight (both in size and system requirements) server monitoring package designed for secure and in-depth monitoring of a handful of typical/critical internet systems.
o Munin monitoring tool surveys all your computers and remembers what it saw. It presents all the information in graphs through a web interface. Its emphasis is on plug and play capabilities. After completing a installation a high number of monitoring plugins will be playing with no more effort.
o OpenSMART (Open Source|System Monitoring and Reporting Tool) is a tool to monitor applications with an agent per host. These agents report all there results to a central monitoring console for displaying and alerting. OpenSMART agents can fix some errors (like not running processes) on their own and OpenSMART knows about conditional monitoring (e.g. in a cluster: An application will be monitored only, when the file system is available on this cluster node, too).
o Serio IT Service View is a free monitoring tool for servers and network devices. It includes standard plugins for monitoring Windows Servers, Linux Servers, Exchange servers, 'pingable' devices, log files, Oracle databases, web and web page content monitoring. It can respond to SNMP Traps, and includes its own mib compiler and scripting language for creating your own plugins. WMI integration allows rebooting of Windows servers, restarting services, etc. Realtime graphs and web page status pages included.
o SpiceWorks is a browser-based desktop that lets you: inventory hardware, software and patches on your network; monitor your network for new software, low disk space, offline servers and rogue users; report on the information you need to manage your network.
o System and Network Monitor (SNM) is a tool to monitor, graph and alert on computing devices and services. SNM runs on a Windows or Linux device on your network, 24 hours every day. The recorded data is accessed via a user friendly menu-driven web browser, e-mail alerts are raised if a user determined threshold fails. Sysmon is a network monitoring tool designed to provide high performance and accurate network monitoring of various application protocols. Currently supported protocols include SMTP, IMAP, HTTP, TCP, UDP, NNTP, and PING tests.
* aslookup tool searches the sequence of AS number specified with the parameter from IRR and indicates the first line of Description of AS Object.
* arpwatch, if this link fails then you can FTP it from ftp://ftp.ee.lbl.gov/arpwatch.tar.Z (since this is the master repository it may also be a more recent version than the one above).
* BGP
o BGPlay a web based service, freely available to the community since 2004, which allows graphical inspection of interdomain routing evolution using public BGP data collected by www.routeviews.org and by www.ris.ripe.net.
o BGPmon can monitor your prefixes and alert you in case of a 'interesting' path change. Recently this has received quite some attention. Specifically after the Youtube hijack and the demo given at defcon.
o iBGPlay based on the same visualization technology of BGPlay it is designed to inspect the interdomain routing evolution using private BGP data collected from ISP's routers. iBGPlay can show the outgoing traffic paths for all internet destinations and is especially suited for content providers. Subscription to iBGPlay is free.
o LinkRank BGP dynamics visualization tool "LinkRank" also presented at Nanog 32 at Reston, VA (http://www.nanog.org/mtg-0410/lad.html).
* FDBGet This little gadget will try to retrieve the forwarding table entries (Mac to interface number) of switches (layer 2 devices). This comes in handy when you want to know to which interface of a switch a particular NIC (e.g. computer) is attached to. Now suppports parameters for command line use.
* Dig
* Netdisco is an Open Source web-based network management tool. Designed for moderate to large networks, configuration information and connection data for network devices are retrieved by SNMP. With Netdisco you can locate the switch port of an end-user system by IP or MAC address. Data is stored using a SQL database for scalability and speed. It also provide optional use of the Cisco Discovery Protocol (CDP).
* D-ITG (Distributed Internet Traffic Generator) is a platform (collection of tools) capable of producing traffic (network, transport and application layer) and of accurately replicating appropriate stochastic processes for both IDT (Inter Departure Time) and PS (Packet Size) random variables (exponential, uniform, cauchy, normal, pareto, ...).
* Dummmynet A FreeBSD system for emulating the effects of bandwidth limitations, propagation delays, bounded-size queues, and packet losses.
* FingerPrinting
o NetworkActive Port Scanner a network scanning tool that can perform UDP and TCP port scans and subnet scans, whois, DNS-dig, ping, protocol scans, and TCP/IP stack fingerprinting.
o Nmap is a utility for port scanning of large networks, although it works fine for single hosts. OPENXTRA has a version (NMapWin) for Windows.
o TBIT TCP Behavior Inference Tool
o sscan performs probes against victim hosts to identify services which may potentially be vulnerable to exploitation.
* Flow Monitoring
o Argus the network Audit Record Generation and Utilization System. The Argus Open Project is focused on developing network activity audit strategies that can do real work for the network architect, administrator and network user. It is a Unix based Real Time Flow Monitor designed to track and report on the status and performance of all network transactions seen in a data network traffic stream.
o ASDIC is a system for advanced firewall log and traffic analysis in large TCP/IP networks.
o Cflowd is an experimental tool to collect data from Cisco's netflow export feature.
o Nett::Flow is a Perl CPAN module to decode and encode NetFlow/IPFIX datagrams.
o Netflow Monitor is tool with a nice web interface for processing and evaluating NetFlow Exports from CISCO routers.
o NetraMet and other realtime flow meters designed for Internet accounting including NetraMet (a traffic meter), NeMac (a combined manager & meter_reader) and NIFTY (a traffic flow analyzer).
o NFDUMP tools collect and process netflow data on the command line. They are part of the NfSen project. The goal of the design is to able to analyze netflow data from the past as well as to track interesting traffic patterns continuously. The amount of time back in the past is limited only by the disk space available for all the netflow data. The tools are optimized for speed for efficient filtering. The filter rules look familiar to the syntax of tcpdump (pcap like).
o NfSen A graphical web based front end for the nfdump netflow tools that allows you to: dDisplay your netflow data: Flows, Packets and Bytes using RRD (Round Robin Database); navigate through the netflow data; process the netflow data within the specified time span; create history as well as continuous profiles; set alerts, based on various conditions; write your own plugins to process netflow data on a regular interval.
* FTP is the standard File Transfer Protocol. See also Commercial FTP tools.
o Autobuf is an auto tuning-enabled FTP client and server. The client, a modification of the NcFTP Client, enables Auto Tuning to calculate optimal window sizes before files are transferred. The client is compatible with most other FTP servers. The server, a modification of the WuFtp FTP server, allows connecting clients to reset its buffer size dynamically by using a SITE option.
o bbcp a secure peer to peer file copy program supporting large windows and multiple streams. See also the presentation and the PDF paper.
o bbftp is designed to quickly transfer files across a wide area network. The package comprises of a server and clients. It also provides compression and secures the transmission of the username and password by using the cryptolib of the OpenSSL project.
o BitTorrent an aggressive peer-to-peer file transfer protocol/implementation.
o Firehose firehose uses multiple interfaces to stripe a bulk data transfer (it's geared towards files, the home-grown protocol includes sending a filename and the client requires a file) over multiple network interfaces.
o GSIFTP is an ftp client and server with built in kerberos and GSI (globus) security, and also allows you to set the TCP buffers on both the client and server.
o HPN-SSH provides a patch to remove the performance bottlenecks in OpenSSH.
o SafeTP operates by installing a transparent proxy in the Windows networking stack which detects outgoing FTP connections from any Windows FTP client, and silently secures them using modern cryptographic techniques.
o NcFTP has a popular free FTP client that adds support for firewalls, intelligent ls caching, background and scheduled processing, and Microsoft Windows.
o RFT Reliable File Transfer Service is a service that allows byte streams to be transferred in a reliable manner. Reliability, in this context, means that problems of less than a certain, user defined magnitude are dealt with automatically. i.e. problems like dropped connections, machine reboots, temporary network outages, etc are dealt with automatically (usually via retry) until they either resume or meet some "ultimate failure" condition
o WU-FTPD is a popular FTP server from Washington University.
* Host based network monitoring tools
o Collectl is a lightweight tool that can monitor network and other traffic and provide a consistent, integrated view of what the system is doing. It can run as a daemon, maintaining a set of rolling logs and optionally can write them in a format plottable by gnuplot or loadable into Excel.
o Etherape is a graphical network monitor for Unix modeled after etherman. Featuring link layer, ip and TCP modes, it displays network activity graphically. Hosts and links change in size with traffic. Color coded protocols display.
o Ethergrouik is a free opensource easy-to-use software that enables you to monitor your network activity (like Etherape) for Windows.
o Fing is a freeware tool for the discovery and scan of local and remote networks. Using adapting techniques, it can discover and scan large networks in short times. It runs on Windows, Linux and Mac OS X.
o IPTraf is a console-based network statistics utility for Linux. It gathers a variety of figures such as TCP connection packet and byte counts, interface statistics and activity indicators, TCP/UDP traffic breakdowns, and LAN station packet and byte counts.
o Jnettop Jnettop is a traffic visualiser, which captures traffic going through the host it is running from and displays streams sorted by bandwidth they use.
o Ntop is a Unix tool that shows the network usage, similar to the popular top Unix command.
o PacketTrap is a free network monitoring tool suite including; TFTP, ping scan, traceroute, and port scan.
o Pktstat a real-time list of active connections seen on a network interface, and how much bandwidth is being used by what. Partially decodes HTTP and FTP protocols to show what filename is being transferred. X11 application names are also shown. Entries hang around on the screen for a few seconds so you can see what just happened. Also accepts filter expressions á la tcpdump.
* Internet Detective is a small Windows application that offers computer users easy access to the status and capabilities of their current network connection by providing information about advanced network capabilities, including connectivity to an Internet2 backbone network, an estimate of available bandwidth and multicast capabilities.
* Lachesis a tool from Intel to monitor and report on response time and packet loss to "landmark" Internet sites. It is based on the publically available tool Imeter.
* Mapping tools
o GeoPlot is a light-weight java applet which allows users to create a geographical image of a data set.
o Mapnet from NLANR/CAIDA is a tool for visualizing the infrastructure of multiple backbone providers simultaneously (Mapnet), and for updating and correcting information that may be invalid or out of date (Mapnet Update)
o NetGeo is a database and collection of Perl scripts used to map IP addresses, domain names and AS numbers to geographical locations.
o Network Weathermap provides useful tools for reporting/visualisation of a network's flows generally.
* Monitoring Infrastructures (also see Comparison of Some Internet Active E2E Measurement Infrastructures)
o Aware project is an effort to create a software framework to measure, monitor, and control computer system resources. Aware is intended to enable system administrators tune system variables, set monitoring/security alarms and build adaptive distributed systems. Aware modules may be linked into applications making them 'aware' and able to participate in the larger managed system.
o Cheops is an Open Source Network User Interface designed to unify your network utilities.
o EDDIE is a system monitoring, security and performance analysis agent developed entirely in Python. Its key features are portability, powerful configuration and ease of expansion.
o GNMS is a GPL Network Management System, a graphical tool used to monitor state of network elements. Montoring can be done in multiple ways using service discovery, snmp, wmi and custom plugins, moreover syslog and snmp traps can be caught too.
o JetMon is a client-server link monitoring tool for NOC operations, written in Java. The server pings a list of network devices, reporting the state to the clients.
o Ganglia is a scalable distributed monitoring system for high-performance computing systems such as clusters and Grids.
o GNetWatch is a mature free open source Java application that offers real-time graphical monitoring and analysis of network performance (using traffic generators and SNMP probes). The main advantage of GNetWatch is that it can monitor events (like throughput) that change for instance every second : the user can see a dynamic graphical window.
o GroundWork Monitor Open Source combines open source projects like Nagios, Nmap, Sendpage, MySQL, etc with custom dashboards in one software package for monitoring a range of platforms - Linux, Unix, Windows - & network devices.
o Hyperic HQ Open Source systems management software designed to monitor, analyze and control performance and availability of web infrastructure including hosts, virtualized guests, services, applications and networks through an easy to use portal and extensible plugin architecture.
o Mon is a general-purpose resource monitoring system, which can be used to monitor network service availability, server problems, environmental conditions such as the temperature in a room, or any number of things.
o Nagios (used to be NetSaint) is an open source host, service and network monitoring program. It is designed to run under Linux, although it should work under most other *NIX variants. It can run either as a normal process or as a daemon, intermittently running checks on various services that you specify. The actual service checks are performed by external "plugins" which return service information to Nagios. Several CGI programs are included with Nagios in order to allow you to view the current service status, history, etc. via a web browser.
o NetMeter This application provides an integrated graphical interface for a set of tools that allows the measurement of QoS parameters over IPv4 and IPv6 networks. Network Performance Meter (netmeter) is an Tcl/Tk application which tries to solve these tasks in a flexible and modular way.
o Network Performance Advisor is a single application which integrates the measuring, analyzing, and displaying of network performance statistics.
o NIMI
o Osmius is a system, application and service monitoring tool with availability and SLA tracking.
o OSSMON is a web-based monitoring package based on OSSWEB application framework. It supports SNMP monitoring as well as specific services like POP3, SMTP, Ping.
o Performance Co-Pilot from SGI allows one to measure, visualize, record, and/or respond to the status, activity, and performance of systems, networks, applications, and servers. PCP is open source and runs on Windows, Mac OS X, and most Unix/Linux variants.
o PingER End-to-end active measurement using ping to monitor end-to-end performance of Internet links.
o Polymon is a free Windows/SQL based network/system monitoring solution that has flexible alerting capabilities as well as historical analysis of uptime and all counters and monitor statuses for a variety of monitors such as ping, snmp, Windows performance monitors, SQL, etc.
o SCAMPI SCAMPI is a platform for passive monitoring. It can use several different hardware monitoring adapters (SCAMPI adapters developed in the project, DAG cards produced by Endace and regular NIC cards). It provides MAPI (Monitoring API) as a high-level abstraction of passive monitoring for easy creation of portable monitoring applications.
o Scriptroute is a flexible network measurement and debugging system. Measurements are expressed as scripts that run as an ordinary user, and a priviledged daemon schedules and manages the packet exchange. The goal is to allow any user to connect to any server and execute any safe network measurement.
o Simple Infrastructure Capacity Monitor (SICMD) is a tool to monitor, graph and alert the capacity of computing devices. SICM runs on a Windows or Linux device on your network, 24 hours every day. The recorded data is accessed via a user friendly menu-driven web browser. E-mail alerts are raised if a user determined number of queries fail.
o skipole-monitor allows the user to input host IP addresses, it then pings these hosts every five minutes and displays their status via a built-in web server, on port 8000. It can optionally send email alerts if the hosts change status.
o Total Network Monitor is an application which can be installed on a server and runs 24/7, constantly monitoring your network computers, servers, ports and services and alerting administrators about arising problems by e-mail, jabber, ICQ etc.
o Zenoss is an integrated, easy-to-use IT infrastructure monitoring software product produced by the Open Source Community.
* mrtg Multi Router Traffic Grapher. Also available from OPENXTRA.
* mrtg-ping-probe is a ping probe for MRTG. It is used to monitor the round trip time and packet loss to networked devices. MRTG uses its output to generate graphs visualizing minimum and maximum round trip times or packet loss.
* NetLogger tools to make it easy to instrument distributed applications and visualize the results.
* NetNow a prototype tool providing realtime NAP & ISP backbone delay & packet loss performance statistics.
* netstat a built in Unix and Windows command line utility to display active network connections.
* NetStat Live is a small, easy to use TCP/IP protocol monitor which can be used to see your exact throughput on both incoming and outgoing data.
* NetTest Nettest is a secure, real-time network monitoring utility. The nettest framework is designed to incorporate existing and new network tests, and be run as a daemon or an interactive process. Requests for network tests are received via a SSL connection or the user interface and are authorized using an ACL list (in the future authorization using Akenti will also be supported).
* Network Diagnostic Tool (NDT) a web100 Java applet developed to test the reliablity and operational status of your desktop computer and network connection.
* NPAD (Network Path and Application Diagnosis) is designed to diagnose network performance problems in your end-system (the machine your browser is running on) or the network between it and your nearest NPAD server. For each diagnosed problem, the server prescribes corrective actions with instructions suitable for non-experts.
* ns network simulator is a discrete event simulator targeted at networking research.
* NIST Net allows a single Linux PC set up as a router to emulate a wide variety of network conditions.
* NOCOL
* nslookup
* OWAMP One Way Active Measurement Program from Internet 2. provides one way delay measurements.
* Packet capture/analysis tools. (see also commercial capture tools) Before using these tools on your site you should check with your network security people.
o Analyzer is a fully configurable analyzer program. It was developed in Win32 environment. It can be used with both Windows 95/98 and Windows NT/2000 platforms. It is composed by three parts: a graphical interface, an analysis engine and a capture program.
o Bro intrusion detection system contains a number of protocol analyzers that can munch on tcpdump traces (or live traffic, of course) and extract high-level application events from the reassembled TCP/UDP streams.
o Crypto-PAn is a cyrptography-based sanitization tool for network trace owners to anonymize the IP addresses in their traces in a prefix-preserving manner.
o Ethereal/Wireshark is a free network protocol analyzer for Unix and Windows (including Win2K). It allows you to examine data from live network or from a capture file on disk. Also Packetyzer provides a Packetyzer new Windows User Interface that will available under the terms of the GNU Public License.
o Darkstat a packet sniffer that runs as a background process on a cable/DSL router, gathers all sorts of statistics about network usage, and serves them over HTTP.
o flstats is program for extracting flow statistics from trace files created using the -w argument to tcpdump.
o IPAudit captures packets in promiscuous mode and is often used for intrusions detection.
o Justsniffer is a tcp packet sniffer. It captures reassembles and reorders TCP packets, performs IP packet defragmentation and displays the tcp flow and trace timings. It is useful for logging network traffic in a 'standard' (web server like) or in a customized way. It can log http response time, useful for tracking network services performances (e.g. web server, application server, etc.) .
o Natas is an opensource windows 2000 network sniffer.
o NetworkMiner is a passive network sniffer/packet capturing tool for Windows. NetworkMiner can detect OS's, hostnames, open ports, sessions and extract files without putting traffic on the network. NetworkMiner can also parse PCAP files for offline forensic analysis
o PasTmon is a passive network application response time monitor utilising packet capture (via libpcap), tracking sessions maintaining transaction state and collecting metrics of server/network response times, segment size negotiation and TCP window size advertisements.
o Plab is a software platform for packet capture and analysis. It is capable to extract, either from live traffic or from file traces, Inter Packet Times (IPT) and Packet Sizes (PS) inside conversations between couples of hosts. Plab runs under Linux and FreeBSD. It tries to use as few processing resources as possible and it is capable of analyzing traffic traces of hundreds millions packets associated to millions of conversations.
o sniffit,
o Snoop is similar to tcpdump and is bundled with the Sun/Solaris Unix operating system.
o Snuffle is a measurement tool for capturing the protocol messages, internal protocol states and to measure implementation performance on networking nodes. Snuffle consists of a set of modules placed in the kernel, device driver and user space. Currently measuring probes for UDP, IP and IEEE 802.11b MAC are implemented.
o TansuTCP (TT) is a TCP trace utility which listens on a local port and then forwards tcp packets to another server. You can see and save binary / text data to a file or you can load binary data from a file.
o Tcpdpriv is a program for eliminating confidential information from packets collected on a network interface (or, from trace files created using the -w argument to tcpdump).
o tcpdump. There is also a version for Windows 9x, NT & 2000. tcpillust takes tcpdump file(s) specified at the command line and draws pictures like figures in the ``TCP/IP Illustrated'' series. You can see sample screen images of tcpillust or screen guide at http://www.jp.nishida.org/tcpillust/index.html.
o TCPurify is a packet sniffer/capture program similar to tcpdump, but with much reduced functionality. What sets TCPurify apart from other, similar programs is its focus on privacy. TCPurify is designed from the ground up to protect the privacy of users on the sniffed network as much as possible.
o TCPshow is a Unix based program that parses the output file of TCPdump into human readable text.
o Tcptrace is a TCP dump file analysis tool written by Shawn Ostermann at Ohio University.
o trafd is a traffic accounting daemon for Linux and FreeBSD, built on top of libpcap, with accompanying tools to manage its data.
o trafshow continuously displays information regarding packet traffic on the configured network interface that match the boolean expression.
o Tstat TCP statistic and analysis tool (Unix/Linux based) - allows collecting network performance indexes from passive traffic analysis (i.e. packet traces), at both network (IP) layer, and at transport (TCP/UDP/RTP/RTCP) layer. It can be used to persistently monitor links, thanks to the integration with the RRD database.
o WinPcap is an architecture for packet capture and network analysis for the Win32 platforms, based on the model of BPF and libpcap for UNIX. See also libcap for windows and libpcap for Unix.
* Path Characterization & Bandwidth Estimation
o ABwE Available Bandwidth Estimator.
o Bandwidth Estimation Tools a compendium of tools maintained by Sally Floyd.
o Bing is a point-to-point bandwidth measurement tool (hence the 'b'), based on ping. You can download it from here
o Bprobe & cprobe provide measurement of bottleneck and congestion bandwidth using ping.
o Clink is a tool for estimating Internet link characteristics.
o Nettimer is a project to do end-to-end network performance measurement. It can listen passively to existing network traffic or actively probe the network
o Pathchar is a tool to infer the characteristics of Internet paths. There are some usage notes from CAIDA. There is also a SIGCOMM '99 paper on Using pathchar to estimate Inernet link characteristics by Allen Downey.
o PathChirp
o Pathload measures the available bandwidth of a link.
o Pathneck is an active probing tool that can detect bottleneck location of network path. It only needs single end control, and has relatively small probing overhead (33.6KB for one probing in the default setting).
o Pathprobe is a MIB tool that uses TCP and web100 to probe and characterize the path between two hosts. The goal of this tool is to run hop-by-hop tests to determine if the paths along the way are capable of supporting the desired end-to-end target bandwidth between the sender and receiver.
o Pathrate measures end-to-end capacity
o Pchar an independent implementation of Van Jacobsens pathchar with more intelligible output. Available for FreeBSD, Solaris, Linux, IRIX
o Pipechar a tool for reporting dynamic network characteristics in particular the bottleneck bandwidth.
o STAB short for spatio-temporal available bandwidth estimator, locate congested links on an end-to-end network path.
* Ping
o arping is an ARP level ping utility. It's good for finding out if an IP is taken before you have routing to that subnet. It can also ping MAC addresses directly. It is pre-installed on some Linux installations, but requires sudo priviledges.
o fping is similar to ping but is optimized to ping a large number of hosts in parallel. You may be able to download from here.
o Fpinger Visualizes your computer network as an animated screen that lets you perform administration functions, monitoring, pinging, scanning, exporting, looking for software and hardware over the network.
o FREEping will ping all your 2003-XP-2000-NT servers (or any other IP address) in free-definable intervals. FREEping will send you a popup when one of the 2003-XP-2000-NT servers stops responding
o Just-ping pings from 8 locations worldwide to a host you select.
o MTR (Matt's traceroute) combines the functionality of the 'traceroute' and 'ping' programs in a single network diagnostic tool.
o MultiPing Grapher MultiPing Grapher is a further development of Perfping with the ability to graph up to 10 different ICMP results. Includes logging and average calculation.
o pathping is built into Windows 2000, it pings all nodes along a route.
o Perfping a tool for testing availability, response times and performance using ICMP. Writes data to a text file for later interpretation with e.g. Excel. Allows you to change IP address, ICMP timeout and data size during runtime. Comes with a nice little graph for realtime testing.
o Ping 'Classic' and the Nikhef Ping variant and its man page.
o Pingroute.pl is a simple Perl script to ping all nodes along a traceroute and provide min, max, avg response time, plus packet loss analysis for 100 and 1400 byte packets. The source is freely available for SunOS, Solaris, Linux, AIX and Digital OSF1.
o TCP based pings use TCP to figure out the Round Trip Time (RTT)
+ Synack measures the Round Trip Time to establish a TCP session using the SYN request and SYN/ACK response, allows specification of the TCP port.
+ Tping also also can ping more than one host at a time.
o Traceping measures the packet loss to nodes along a route.
o TRIUMF's Visual Ping provides a Web page that the user can make ping transfer rate measurements between the Web server and the browser.
o hping2 is a network tool able to send custom ICMP/UDP/TCP packets and to display target replies like ping do with ICMP replies.
o Zinger a small Perl program that pings the closest router on network and reports any loss of connection. When it detects a problem, it does two things. First, it announces the problem over the PC speakers. Then, it writes the time and date to a log file. When the connection comes back up, the program writes another entry in the log and announces the happy event over the speakers again.
* Qcheck checks network response time, throughput, and streaming performance, by means of thin agents installed on hosts that are to be checked.
* RANCID monitors a router's (or device's) configuration, including software and hardware (cards, serial numbers, etc), using CVS. Rancid logs into each of the devices in a router table file, runs various commands, chomps the output, and emails any differences ( sample) from the previous collection to a mail list.
* Rider measures available bandwidth, latency, and streaming performance (including noticing consecutive lost packets -- a key measure for VoIP) using lightweight performance agents that include a built-in web server. Using a web browser for a GUI provides many extra useful features, such as the ability to save and print results, and the ability to bookmark tests (and even make a page of tests for your intranet.)
* RRDtool (Round Robin Database tool) is a system to store and display time-series data.
o Bronc is a package of utilities that allow you to gather and visualize data in the form of graphs. It uses RRD and is similar in function to Cricket and MRTG, though it is claimed to be faster.
o Cacti is a complete network graphing solution designed to harness the power of RRDTool's data storage and graphing functionality.
o Cricket is a high performance, flexible system for monitoring trends in time-series data. The collector runs from cron every 5 minutes (by default), and stores data into a file-based database managed by the RRD Tool. Later, when you want to check on the data you have collected, you can use a web-based interface to view graphs of the data.
o ElvinRRD is a tool to provide a mechanism for transporting data across a network and storing it in RRD databases. ElvinRRD is written entirely in Python and works with (and requires) both Elvin and RRDtool. Any Elvin producer (client) can send data for ElvinRRD to store (e.g., EDDIE-Tool); and any RRD-aware software can process the resulting RRD databases (e.g., Cricket, Cacti).
o Host Grapher II is a light program that uses RRD to draw graphics of Hosts for Network, Processes, CPU, Memory etc. Writing addicional plugins is quite simple. Works on all major UNIX platforms and on win32.
o NetMRG is a tool for network monitoring, reporting, and graphing. Based on RRDTOOL, NetMRG is capable of creating graphs of any parameter of your network.
o NMIS Network Management Information System is an SNMP polling and statistics viewer front-end to Tobi Oetiker's RRDTool.
o Orca is a tool useful for plotting arbitrary data from text files onto a directory on a Web server.
o remstats Remstats is a system of programs to: gather data from servers and routers, store and maintain the data for long periods, produce graphs and web-pages tieing them together, and monitor the data for anomalous behavious and issue alerts. This software is a pretty good hack to wrap around rrdtool as collector and presenter, easy to set up with not to much prerequesits. It only needs a some perlmodules and perl. Its under GPL and is able to maintain and monitor big environments.
o SmokePing measures latency and packet loss in your network. Uses RRDtool to maintain a longterm datastore and to draw pretty graphs giving up to the minute information on the state of each network connection.
o Torrus is designed to be the universal data series processing framework. Its has a scalable hierarchical design, with an application-independent core, and highly customizable architecture. Suitable for small installations and for big enterprise or carrier networks. Although most of our users deploy Torrus for SNMP monitoring, it might be useful for data series of any nature. Tobi Oetiker's RRDtool is used for data storage.
* RouteViews is a tool for Internet operators to obtain real-time information about the global routing system from the perspectives of several different backbones and locations around the Internet.
* SNMP:
o Analyse It is a shareware device poller that produces graphical performance reports for devices. You use it for trend analysis. The reports are in HTTP format for global organization view ability. Enables pro active network availability, performance, reliability and utilization reporting. CMU SNMP or for a Perl5 extension module
o EzMgt MIB Browser is a free tool that includes a MIB Editor, SNMP Query View and SNMP Tracer View.
o Interface Traffic Indicator Interface Traffic Indicator, a graph utility to measure incoming and outgoing traffic on an interface in bits/sec, bytes/sec or utilization. Works on all SNMP-capable devices (computers, NICs, switches, routers, etc.) with adjustable poll interval down to three seconds. You can use this program in a professional network environment to monitor selected network interfaces (even backplane ports if the device provides the information) or you can monitor your home network or cable/modem/ISDN connection to the internet.
o Mibbrowser Mibbrowser is a tool that retrieves all MIB data (OIDs and values) from SNMP-capable network devices. It can be used to find out what kind of MIB data is available from a device.
o STC is a free command line tool to get and compare, side by side, SNMP tables entries from different computers. The output is always in XML format which is by default associated with a XSL script. So it can be processed later or immediately viewed with a WEB browser.
o Tricklet man pages and code
o UCD SNMP public domain tools
* SolarWinds Free Tools provides many free tools for everydays tasks performed by network professionals. Includes uploading/downloading executabe images to network devices, IP address tracking, syslog server, monitoring of some applications, netflow etc.
* Spong Son of Pong (spong) is a simple system monitoring package, that will monitor system attributes and network services on a variety of machines. It will gather status reports and contact staff if there are problems. It will also summarize the information and display it via a web interface
* Sting end-to-end active monitoring tool that estimates one way loss through careful manipulation and observation of TCP behavior.
* TCPtune a TCP stack tuner for Windows
* telnet
* Thruput tools (also see the FTP tools):
o bulk is achievable performance measurement tool (iperf-like), which allows real-time monitoring of any socket options and their members, particularly TCP_INFO option, which provides useful clues for performance debugging. You can monitor rtt, cwnd, ssthresh, retransmits, etc. down to per sent segment, if you wish. The tool does not require root access or any kernel patch (even though it works with an accompanying AIMD patch for per-socket AIMD tuning). Download
o gen_send/gen_recv a simple UDP trafic generator.
o IPerf is a tool for measuring maximum TCP and UDP bandwidth, reminiscent of tools such as ttcp. It has been written to overcome the shortcomings of those aging tools. Jperf is a Java implementation.
o The MGEN toolset provides programs for sourcing/sinking real-time multicast/unicast UDP/IP traffic flows.
o netperf maintained by HP, is a general measure of performance of a network. Provides a measure of latency between request and response of generic transactions across a TCP/IP network.
o Nuttcp is a tool for measuring TCP achievable throughput.
o RUDE stands for Real-time UDP Data Emitter and CRUDE for Collector for RUDE. RUDE is a small and flexible program that generates traffic to the network, which can be received and logged on the other side of the network with the CRUDE.
o Tcpspray sends data to either the discard or echo TCP service on the specified host and prints the average throughput.
o thrulay measures achievable UDP and TCP single stream throughputs (currently only supports Linux) also provides RTT estimates.
o TReno a tool to function as a basis for a formal bulk transfer metric for the Internet.
o ttcp
o UDPmon This is a set of tools using UDP and TCP to give estimates of the request-response latency and bandwidth found in the route between the two end nodes. See also Some Tools used for Testing Network Behaviour.
* Traceroute (also see the Traceroute Servers web site, and commercial traceroute products)
o man pages, where to get it, the traceroute NIKHEF variant and traceroute servers.
o Gtrace is a traceroute visualization tool that uses a combination of methods to either determine or guess at the physical location of a node in the traceroute path. It is flexible enough to support addition of new databases, heuristics to map IP addresses to physical location and maps.
o mturoute is a small Windows tool to determine the path MTU between you and a specified host. In traceroute mode it will additionally show you the mtu at every hop between you and the specified host.
o NeoTrace provides graphical traceroute information.
o pathping a Windows NT utility to do a traceroute and then measure to each node along the route.
o Prtraceroute is a version of traceroute, from the RIPE Internet Routing Registry toolset, that presents routing policy information together with the real time packet trace obtained from traceroute. It adds AS information to the normal traceroute output, making use of Routing Registry (RR) database information.
o Scamper is a program that conducts traceroute to large numbers of IPv4 and IPv6 addresses in parallel to fill a specified packets-per-second rate.
o TCPtraceroute uses TCP to a port at the end node to do a traceroute.
o The tracepath for Linux is like traceroute but does not need superuser and has no fancy options. It does discover the PMTU along the route.
o Traceroute-nanog has additional features like AS lookup, TOS support, microsecond timestamps, path MTU discovery, parallel probing and others.
o VisualRoute a GUI based traceroute for Windows.
* Zabbix is software for application and network monitoring. Zabbix supports both polling and trapping techniques to collect data from monitored hosts. Flexible notification mechanism allows easy and quckly configure email notifications for pre-defined events.

Web Tools [Contents]

* Benchmarking
o WAPT (Web Site APplication Testing) is a web load and stress testing tool that provides a way of testing web sites, web servers, and intranet applications with web interfaces.
o WCAT is a Web Capacity Analysis Tool freely available from Microsoft.
o WebStone from MindCraft measures raw throughput of a standard HTTP workload, see also the NCSA Web Server Performance page.
o Web Server Stress Tool is a powerful HTTP client/server test application, designed to pinpoint critical performance issues in your web site or web server that may prevent optimal experience for your site's visitors. Supports SSL.
o WWW performance monitoring
* Website Monitoring
o BasicState is a free hosted service for monitoring the status of http servers. Subscribers can also add popular ecommerce partner sites to their alert specifications.
o EZ WebSite Monitoring monitors uptime, response time/quality, history, popularity ranking, and tracking important changes.
o DownorNot shows actual and past information about the uptime of (mainly) popular websites
o Jiploo.com Website Monitoring" is a web based tool for monitoring web sites and sending alerts on performance or downtime failures.
o Panopta Panopta is a server monitoring service and outage management system for online businesses and service providers, providing the ability to detect outages immediately, then notify the right people about the outage, and finally, give a team the right tools to resolve the outage quickly.
o Pingdom lets you monitor the uptime and response time of your web site or servers from several locations around the world. See your historical performance and make sure that you have a acceptable availability so you are not loosing customers and visitors. You can also receive SMS and email notifications if any downtime occurs so you can fix any errors the minute they happen.
o WebMetrix GlobalWatch provides performance monitoring and metrics for the broadest range of websites, internet applications and services. It provides the information for better customer-centric decision-making for those providing web-enabled services.
o Website Monitoring provides performance monitoring and metrics for a broad range of websites, internet applications and services. It provides the information for customer-centric decision-making for those providing web-enabled services.
o WebPerform provides website performance monitoring and testing services from network locations in major cities across the globe. Drill-down object, host, and component level detail on test runs, reporting, and alerting help companies identify and resolve availability issues and performance problems.
o Website Monitoring is a free website monitoring application released under the GPL that provides an uptime monitoring tool.
o WebWatchBot provides monitoring, notification, and analysis software for web sites and IP devices, providing email alerts, reporting and performance metrics.
o Wombat monitors the availability and operation of websites. When your website goes down or produces a defineable error, WOMbot will automatically notify you via SMS and Email.
* Webalizer is a fast, free web server log file analysis program. It produces highly detailed, easily configurable usage reports in HTML format, for viewing with a standard web browser.

Auxiliary Tools to Enable Monitoring, Analysis, Report Creation or Simulation [Contents]

* Asset Tracking
o PC Inventory Advisor automatically queries all computers on your network and reports back with details about OS and hotfixes, installed software and hardware, network alerts and visual comparison of configurations.
o Inventory Genie is a Discovery based Inventory system, that can automatically build an inventory on any subject (specially network & system inventories ) using simple wizards, parsers and multiple protocols (icmp,snmp,sql,http,telnet, ssh,wmi,registry,open ports,...). It can be used to populates CMDBs. It has many pre-made discovery rules. It has the ability to perform remote actions on selected elements based on the information in its DB, thus enables provisioning.
o Remote Asset Tracker is a network inventory and PC auditing software designed specifically for medium and large companies.
o Total Network Inventory is a PC audit and Network inventory software for office and large scale enterprise networks. Total Network Inventory interrogates all computers and notebooks on a network and reports back with complete information about OS, service packs, hotfixes, hardware, software, running processes, etc. on remote machines. This information is added to the centralized database and network administrators are able to generate reports about each or all PCs (notebooks) on a network. The program is agent-free and requires no software installed on remote machines (laptops).
* HighTower security solutions are designed to help you improve organizational security, and at the same time, reduce the burden of manual process facing security administrators.
* ghostscript
* GIF Manipulation and Animation
o Alchemy Mindwork's GIF Construction Set is a shareware tool for Windows.
o GIFBuilder is freeware for the Mac.
o WhirlGIF is a UNIX command-line utility to take a series of GIF files and output an animated GIF.



* Plotting tools
o ChartDirector a chart component control library for ASP/COM/VB/.NET/PHP/Perl/Python/Ruby/ColFusion/C++
o GDChart Easy to use C, Perl, Python APIs, high performance library to create charts and graphs in PNG, GIF and WBMP format
o Gnuplot a command-line driven interface function plotting utility. Also see the demos.
o Google Charts.
o Ploticus non-interactive plotting package for Unix & Windows. Has mouseover and mouse click capabilities.
o Simile.
* Analysis & Visualization tools
o Analyse-it is a software add-in for Microsoft Excel that includes over 30 parametric & non-parametric statistics, including descriptive statistics, box-whisker plots, correlation, multiple linear regression analysis, ANOVA, & chi-square statistics for general statistical research.
o BestFit is a Windows program that finds the distribution curve which best describes your data set.
o Maple.
o MatLab.
o moodss a graphical monitoring application. The core takes care of managing modules (loading and unloading), displaying modules data through sortable tables and diverse graphical viewers, handling user set threshold conditions with email alerts, recording and browsing data history from a database. moodss can predict the future, using sophisticated statistical methods and artificial neural networks, and therefore be used for capacity planning.
o PV-Wave.
o SAS.
o S-Plus.
* Simulation/Modeling
o Network Simulator (ns).
o OPNET Modeler OPNET Modeler uses discrete event simulation to provide an environment for designing protocols and technologies, as well as testing and demonstrating designs in realistic scenarios.
o Xplot.

Further Information [Contents]

* 7-Minute IT Manager's Guide to Network Visibility series of podcasts from VSS Monitoring covers traffic visibility's role in network monitoring. Each segment tackles a different application area or technical topic, e.g., video monitoring, cell network visibility, traffic load balancing to the monitoring devices, configuring traffic capture filters, intrusion detection and prevention, etc.
* CAIDA Measurement Tool Taxonomy provides a preliminary overview of Internet and TCP/IP performance measurement tools and efforts and distinguishes tools used to measure the Internet from general TCP/IP performance tools.
* CIAC's List of Security Tools
* Cisco's Network Monitoring Tools an introduction to network monitoring.
* Gigamon University provides podcasts of passive monitoring for protocol analysis, RMON probe, network troubleshooting, application performance, web experience management, network and application discovery, network security, intrusion detection, access control, Sarbanes-Oxley, HIPAA and PCI compliance auditing, forensics and packet capturing and storage, deep packet inspection, VoIP analysis and IPTV service assurance, etc.
* Network Performance Measurement Tools: An Internet2 Cookbook
* Computing Vendors Online.
* LBNL's Network Research Group Includes links to lots of their documents and tools.
* Internet Tools
* is a compact, comprehensive, carefully organized set of links to essential Internet sites about Internet-based tools for information, interaction, and communication. LoveMyTool gives customer testimonials and expert reviews of their favoriate "out-of-band" networkk security and performance monitoring tools.
* Malware Analysis: Tools of the Trade
* Netspec a Network Performance Evaluation and Experimentation Tool from the University of Kansas.
* Network-Automation mailing list is for discussions of issues related to automating network configuration and management, including (but not limited to) methods, mechanisms, techniques, philosophies, policies, and products (in general; questions about specific products should be directed to the mailing list dedicated to that particular product).
* Network Management Tutorial
* NIH's Network and Network Monitoring Software list.
* Network Performance Daily is blog that includes free network monitoring Tools, How-Tos, and a handy Google calendar of events that typically spike enterprise network traffic.
* NLANR Advanced Applications Database is an online resource that provides access to information about networked research and education projects, applications, and resources that are related. You can view information about the more than 2,400 projects entered in the AAD by using keyword searches or preformatted reports.
* Routing Arbiter ToolSet
* ServerFiles.com is a software directory for network administrators and IT professionals that are looking for networking & server software for Windows 2003, Windows 2000 or Windows NT.
* Terena Guide to network resource Tools a guide to network tools and innovation for users of all levels of expertise.
* TruePath will work with your teams to define what monitoring software packages (if any) are needed. They then configure and maintain the monitoring tools and your teams use them.
* Tutorial on Internet Monitoring & PingER.
* WebAttack a large collection of Internet Tools.
* WindowsNetworking.com provides tutorials on various Windows networking related topics such as setting up Windows NT/XP/2000/2003 networks, troubleshooting, connectivity and more. Also includes a comprehensive archive of reviewed networking software.
* WWW Resources for Communications & Networking Technologies from eIT.in presents a comprehensive listing of networking and communication resources from around the web. It contains over a thousand web links for hundreds of networking and communications related topics.
* The X Consortium's Anonymous FTP Archive.
* Smart Yellow Pages

[Contents]
* Disclaimer: Reference herein to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by SLAC, Stanford University or the United States Government. The views and opinions of authors expressed herein do not necessarily state or reflect those of SLAC, Stanford University or the United States Government, and shall not be used for advertising or product endorsement purposes.

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