TeamViewer - TeamViewer lets you establish a connection to any PC or server within just a few seconds.
Zabbix - Track, record, alert and visualize performance and availability of IT resources
LogMeIn - LogMeIn gives you fast, easy remote access to your PC or Mac from your browser, desktop and mobile...
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
Remote Desktop Manager - Remote Desktop Manager is a remote connection and password management platform for IT pros trusted by more than 300 000 users in 130 countries.Add-ons - Remote Desktop .
Nagios - Complete monitoring and alerting for servers, switches, applications, and services