Enable Authentication

To enable the authentication, perform the following steps:

Go to the server where MongoDB service has been installed. Open the Command Prompt as Administrator and execute the command below.
```
mongosh --host x.x.xx.x1 --port 27017
```
Execute the command below:
```
MongoDBMongoDB> use admin
```

Make the following changes in the values before execution:

user:<username>
pwd :<password>

Note:

(Choose any password for the corresponding user for MongoDB authentication.)

MongoDB adminMongoDB> db.createUser(
{
user: "<username>",
pwd: "<password>",
roles: [ {role: "userAdminAnyDatabase", db: "admin" }, { role: "root", db: "admin" }, "readWriteAnyDatabase" ]
}
)
On successful execution, You will get {ok: 1 } message.

Make the following changes in mongod.cfg. Refer the screenshot below:
Note:
Uncomment the security section, which can be found around line 24, and add the following configuration as shown below:
```
security:
authorization: “enabled”
Make sure to maintain proper indentation.
```
Figure 1. Enable Authentication
Restart the MongoDB service on the server.

Re-open the Command Prompt as Administrator and open the MongoDB terminal using the following command:

mongosh --host <IP> --port <Port> -u <username> -p <password> --authenticationDatabase "admin"
For e.g.- mongosh --host x.x.xx.x --port 27017 -u <username> -p <password> --authenticationDatabase "admin"
Connection with MongoDBMongoDB should be successfully established.