Default MongoDB Port
The following table lists the default TCP ports used by MongoDB:
Default Port | Description |
27017 | The default port for mongod and mongos instances. You can change this port with port or—port . |
27018 | The default port for mongod when running with—shardsvr command-line option orthe shardsvr value for the clusterRole setting in a configuration file. |
27019 | The default port for mongod when running with—configsvr command-line option orthe configsvr value for the clusterRole setting in a configuration file. |