Question: what tools have you used for infrastructure monitoring?
Answer: SolarWinds Network Performance Monitor (FREE TRIAL) ...  Datadog Infrastructure Monitoring (FREE TRIAL) ...  SolarWinds Server & Application Monitor (FREE TRIAL) ...  Paessler PRTG Network Monitor. ...  Site24x7 Server Monitoring. ...  Atera. ...  ManageEngine OpManager. ...  Nagios X.