We have listed 12 alternatives for Datadog which have similar features like
Datadog
including commercial, freemium, free and open source Mac OS X
alternatives.
NetCrunch is a Windows Server–based network monitoring tool that boasts high performance and impressive scalability even in a single-server deployment.
Graylog helps you can observe any established or rejected network connection, find those that are unusual to tighten rules and mitigate attacker activity.