What are some alternatives?
When comparing eZ Server Monitor and PhpSysInfo, you can also consider the following products
Zabbix - Track, record, alert and visualize performance and availability of IT resources
RunDeck - RunDeck is an open source automation service with a web console, command line tools and a WebAPI.
Terraform - Tool for building, changing, and versioning infrastructure safely and efficiently.
Monitor in a Box - Instantly usable, open source monitoring
Rancher - Open Source Platform for Running a Private Container Service
Ravello - Ravello is a cloud service powered by nested virtualization. Enterprises run VMware or KVM workloads on AWS or Google without modifications.