Thorough as ever, Ian Grieve continues his series going: Hands On With Microsoft Dynamics GP 2016 R1: Integration Manager Installation
Hands On With Microsoft Dynamics GP 2016 R1: Integration Manager Installation | azurecurve
Development & IntegrationInstall, Upgrade & AdminGP 2016
Archived post from 2016. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.