how to add and connect mac hosts to fleetdm osquery, is there any documentation that can provide step by step procedure to connect mac hosts to fleetdm osquery

https://holdmybeersecurity.com/2021/01/07/getting-started-with-fleetdm-v3-6-0/ Covers how to do it with Ubuntu but the process is similiar

can you please specify which part of this article do i need to read to add a new mac hosts that is on another network to connect to my fleetDM

As I stated above this blog post is written to show how to setup Osquery with FleetDM on Ubuntu. However, the steps/configs for Ubuntu are very similar for macos. The section you want to look at is

Manual Osquery install on Ubuntu