- PRTG monitors is freeware using up100 sensors.
https://www.it.paessler.com/
From my experience it work fine with all devices such switches, Firewall, client, Server, Hypervisors, SNMP devices and so on.
An interesting tips is installing different PRTG istances on different servers (bypassing 100 sensor free limits) using PRTG client software that permit you to have single management console, without having necessity to purchase license. - SolarWinds All Free Network/System/Security/DB/clients monitoring tools
https://www.alessandromazzanti.com/2018/11/freeware-solarwinds-software-free-tools.html - MAP Toolkit 9.8
https://www.alessandromazzanti.com/2018/03/server-map-toolkit-98.html - Veeam One
https://www.alessandromazzanti.com/2017/05/monitor-veeam-one-free-edition-95.html - Naemon Monitoring Server
https://www.alessandromazzanti.com/2017/03/monitoring-naemon-monitoring-server.html - OpManager is an excellent monitoring platform, I used during these years and is free to monitor up to 10 devices:
https://www.manageengine.com/network-monitoring/
https://www.manageengine.com/network-monitoring/download-free.html - AD Lockout Monitoring tool (such as Netwrix, Microsoft tool....)
https://www.alessandromazzanti.com/2016/10/ad-lockout-events-on-domain-controller.html - Scripting - Monitor disk space, cpu load, memory and send html report through email
https://www.alessandromazzanti.com/2016/06/scripting-monitor-disk-space-cpu-load.html - AD health check with Powershell
https://www.alessandromazzanti.com/2016/06/monitoring-ad-health-check-with.html - Exchange 2010 - How to monitor Exchange Health
https://www.alessandromazzanti.com/2016/05/exchange-2010-how-to-monitor-exchange.html - Exchange 2013 - How to monitor it with powershell command
https://www.alessandromazzanti.com/2015/06/exchange-2013-how-to-monitor-it-with.html - Exchange - Microsoft Exchange Server User Monitor
https://www.alessandromazzanti.com/2012/10/exchange-microsoft-exchange-server-user.html - Monitor Wall Board for IT Rooms, tools and tips:
https://www.alessandromazzanti.com/2016/03/monitoring-virtualwin-with-autoswitcher.html - How to monitor website (for free) via email/smshttps://www.alessandromazzanti.com/2016/01/monitoring-how-to-monitor-website-for.html
- Netwrix Tools auditing, security and monitoring
https://www.alessandromazzanti.com/2015/09/security-netrwrix-tools-auditing.html - Netwrix Auditor:
https://www.netwrix.com/auditor.html - True last logon to monitor AD
https://www.alessandromazzanti.com/2015/09/security-true-last-logon-to-monitor-ad.html - 2012 R2 Server - Install SNMP and enable monitoring
https://www.alessandromazzanti.com/2015/06/2012-r2-server-install-snmp-and-enable.html - 2012 Server - How monitor 2008 server on 2012 dashboard
https://www.alessandromazzanti.com/2014/09/2012-server-how-monitor-2008-server-on.html - Utility that lists computers and devices connected to your network
https://www.alessandromazzanti.com/2013/11/server-new-utility-that-lists-computers.html - NetTools
https://www.alessandromazzanti.com/2012/10/programma-nettools-per-monitorare-la.html - Zenoss Monitor solution:
https://www.zenoss.com/get-started
https://www.zenoss.com/product/unified-monitoring
https://www.alessandromazzanti.com/2012/09/network-disponibile-zenoss-core-42.html - JFFNMS - Just For Fun Network Management System is written in PHP Language Devices are continuously polled, or JFFNMS can collect events from SNMP traps and syslog messages. The web GUI displays the status of the devices’ interfaces as well as report on rolling statistics, such as error counts or traffic on an interface.
Here they are some interesting features like * TFTP Configuration Download and Archival (Cisco IOS & CatOS) and screenshots - LogicMonitor
https://www.alessandromazzanti.com/2012/05/server-prodotto-cloud-di-monitoraggio.html - Spiceworks Network Monitor & Cloud Cost monitor
https://www.spiceworks.com/free-network-monitoring-management-software/?utm_medium=internal&utm_source=community_tools&utm_campaign=%20community_tools
https://www.alessandromazzanti.com/2012/04/server-spiceworks-programma-gratuito.html - Vmware ESXi Monitoring
https://www.alessandromazzanti.com/2012/03/vmware-esxi-monitorare-un-server-vmware.html - HyperV - how to monitor 80 functionlaity with script
https://www.alessandromazzanti.com/2012/03/hyperv-it-does-pretty-much-what-it-says.html - Server - Folder monitoring
https://www.alessandromazzanti.com/2011/09/server-monitorare-una-cartella-di-un.html - OMD Labs-Edition
https://labs.consol.de/omd/ - Nagios XI, Enterprise Server and Network Monitoring Software https://www.nagios.com/products/nagios-xi/
- Nagios Network Analyzer
https://www.nagios.com/products/nagios-network-analyzer/ - AD monitoring Tool (Dovestones)
https://dovestones.com/download/ - The Dude automatically scan all devices within specified subnets, draw and layout a map of your networks, monitor services of your devices and alert you in case some service has problems.
https://mikrotik.com/thedude - NetXMS Open-source network and infrastructure monitoring and management system
https://www.netxms.org/ - Total Network Monitor
https://www.softinventive.com/total-network-monitor/ - 10-Strike Network Diagram - Software for Creating and Drawing Topology Diagrams
https://www.10-strike.com/network-diagram/ - Multi Router Traffic Grapher (MRTG): Open source Round Robin Database (RRD)–based network monitoring and graphing tool used to show current and historical information about network devices, specifically router and switch interface statistics. This tool is freely available from oss.oetiker.ch/mrtg/index.en.html.
- WhatsUp Gold: Ipswith’s network-device monitoring tool, which is capable of discovering network devices, tracking system health, and receiving Simple Network Management Protocol (SNMP) trap and Syslog data. Ipswitch provides a 30-day evaluation of the product, whose price starts around $1,500 for the ability to manage 25 devices. Check out their website at www.whatsupgold.com.
- Cacti: Open source RRD–based network monitoring and graphing tool. If you have used MRTG but wanted something a little flashier or geared towards other types of devices, then Cacti may be for you. Cacti makesit easier to add devices such as servers to your monitored devices list. As with MRTG, this tool is freely available, and you can find it for downloadon their website, www.cacti.net.
- Xymon Monitor (formerly Hobbit Monitor): Open source–device monitoring and alerting tool, as shown in Figure 2-4, that displays current status information for network devices. Like Cacti and MRTG, Xymon is capable of gathering a wide range of information about your devices and offers historical information on those devices in the form of RRD–based charts. One difference with Xymon lies in its ability to send out alerts to configured users in the event that certain conditions have been met, such as a device has gone offline for more than 5 minutes or free disk space on a server has dropped below 100 MB. You will find Xymon on itsSourceforge page at xymon.sourceforge.net.
- NetFlow: A Cisco Internetwork Operating System (IOS) component that collects and measures data as it flows through switch and router interfaces. While NetFlow on a switch or router collects data, it does not provide any of the analytical functions. For analytics, you will require a NetFlow collector.
- Cisco NetFlow Collection Engine: Cisco’s NetFlow gathering and analysis tool that collects NetFlow data from network devices and allows for centralized analysis of the data. This data can be analyzed across the network to ensure that application data is passing over the network in a manner that is appropriate to the application. For example, you could use this tool to ensure that a business-critical accounting system is not being impacted by users watching YouTube videos. You can get more information about the NetFlow Collector Engine from www.cisco.com/en/US/products/sw/netmgtsw/ps1964/index.html, but this product comes with a price tag in excess of $16,000.
- Splunk: Log Analyzer
https://www.splunk.com/it_it
[Update 2024.01.25]
Zabbix: https://www.zabbix.com/
