What are some alternatives?
When comparing eZ Server Monitor and Linux Dash, you can also consider the following products
PhpSysInfo - phpSysInfo is a customizable PHP script that displays information about your systems.
netdata - Real-time performance monitoring, done right
Zabbix - Track, record, alert and visualize performance and availability of IT resources
Grafana - Data visualization & Monitoring with support for Graphite, InfluxDB, Prometheus, Elasticsearch and many more databases
Nagios - Complete monitoring and alerting for servers, switches, applications, and services
RunDeck - RunDeck is an open source automation service with a web console, command line tools and a WebAPI.