Deploying a Replica Set
Implementing a replica set is very simple in MongoDB. The following steps take you through the process of prepping and deploying a replica set:
1. Ensure that all the members in the replica set are accessible to each other using DNS or hostnames. Adding a virtual private network for the replica servers to communicate on will enhance the performance of the system because the replication process will not be affected by other traffic on the network. If the servers are not behind a DMZ so the data communications are safe, then you should also configure an auth and a kwFile for the servers to communicate on for security.
2. Configure the replSet value, which is a unique name for the replica set either in the mongodb.conf file ...
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