Setup MongoDb

To set up MongoDB on Ubuntu, follow these steps:

Visit the MongoDB website for detailed instructions on installing MongoDB.
Start MongoDB by running the following command:
```
sudo systemctl start mongod
```
If you encounter an error like Failed to start mongod.service: Unit mongod.service not found, run the following command before starting MongoDB again:
```
sudo systemctl daemon-reload
```
Verify that MongoDB has started successfully by running the following command:
```
sudo systemctl status mongod
```
If you want MongoDB to start automatically after a system reboot, run the following command:
```
sudo systemctl enable mongod
```
To stop MongoDB, use the following command:
```
sudo systemctl stop mongod
```
If you need to restart MongoDB, run the following command:
```
sudo systemctl restart mongod
```

By following these steps, you will be able to set up and manage MongoDB on your Ubuntu system effectively.