Nagios is a powerful monitoring system licensed under Nagios Enterprises that helps organizations identify and resolve IT infrastructure issues.



Ipsentry is described as 'IPSentry provides monitoring of all aspects of your network 24/7 and alerts you when there is a potential problem' and is a Network Monitor in the network & admin category. There are more than 10 alternatives to Ipsentry for a variety of platforms, including Linux, Windows, Web-based, Android and iPhone apps. The best Ipsentry alternative is Nagios, which is both free and Open Source. Other great apps like Ipsentry are OpenNMS Horizon, Opsview Enterprise, Idera and SolarWinds Server & Application Monitor.
Nagios is a powerful monitoring system licensed under Nagios Enterprises that helps organizations identify and resolve IT infrastructure issues.



OpenNMS is an open-source network monitoring platform that helps you visualize and monitor everything on your local and distributed networks.




Server monitoring software for physical, virtual, and cloud-based IT. They also do email monitoring, application monitoring. The system is used to provide insight into server up-time and reduce outages.




Idera, formerly CopperEgg, is an all-in-one software-as-a-service designed and priced to ensure that organizations can effectively react to infrastructure performance issues. Idera provides four essential monitoring capabilities, giving you everything you need to identify and...
Server and application performance monitoring has never been easier or more affordable. With agentless monitoring for hundreds of applications and hardware types, Server & Application Monitor delivers the management, alerting, and reporting you need to keep your servers and...




Trafikito is free Linux servers monitoring solution which by default checks RAM, disk space, CPU and sends you an email if something is wrong.




Our open and flexible server and network monitoring solution delivers a unified view of your entire IT environment. Monitor up to 100,000 devices from a single server, with distributed and redundant solutions for nearly infinite scalability.




Monitor applications, infrastructure, and servers in one platform. Out-of-the-box dashboards. Metrics. Analytics. Starting at $7.50/month. Free 14-day trial.