How to make a MongoDB replica set A three member mongodb replica set on three separate hosts with authentication. Also see official docs. In this tutorial we're putting MongoDB on three different hosts. We generate and use keyfile. The keyfile gets used as part of a Salted Challenge Response Authentication

See Official MongoDB install docs for all platforms. See getting started with MongoDB for an overview of what MongoDB is. 1. Import Key sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 2930ADAE8CAF5059EE73BB4B58712A2291FA4AD5 2. Create List file echo "deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu xenial/