Preventive maintenance is the practice of routinely taking measures in hardware administration that reduces the risk of failures and improves the likelihood of quick recovery in the event that a failure does occur.
Site reliability engineering (SRE) is the application of scripting and automation to IT operations tasks such as maintenance and support. The goal of SRE is to swiftly fix bugs and remove manual work in rote tasks.
A sysop is the person who runs a computer server.
Zabbix is an open-source tool designed to monitor networks, servers, appliances and other hardware through a Linux-based server, which communicates to the native agents that are available for many operating systems, including Linux, UNIX and Windows.