MongoDB Installation and Verification Guide

MongoDB is a leading NoSQL database designed for scalability and flexibility, using a document-oriented model to store data in JSON-like formats. When you deploy a database-ready VPS with HostGraber, we pre-configure the environment so you can start building immediately.

This guide will walk you through verifying that your MongoDB service is installed, secured, and ready for your data.

1. Access Your Server and Retrieve Credentials

To begin, log in to your server via SSH using your server IP and the root credentials provided in your HostGraber Welcome Email.

MongoDB on HostGraber instances is secured with authentication by default. You must retrieve your provisioned admin credentials to gain access.

Run the following command:

cat /root/credential.txt

Look for the ADMIN_USER, ADMIN_PASSWORD, and the CONNECTION_STRING. These are essential for the steps below.

2. Check the Service Status

Ensure the MongoDB daemon (mongod) is active and running on your system.

Command:

systemctl status mongod

• What to look for: Look for Active: active (running). If the service is stopped, you can start it with sudo systemctl start mongod.

3. Verify the Network Port

By default, MongoDB listens on Port 27017. Check if the process is bound to this port.

Command:

ss -tulnp | grep 27017

• Expected Output: You should see a line indicating that mongod is listening on 0.0.0.0:27017 or 127.0.0.1:27017.

4. Test the Database Connection

Starting with MongoDB 6.0 and 7.0, the legacy mongo shell has been replaced by mongosh (The MongoDB Shell).

Method A: Authenticated Login

Because HostGraber secures your installation, running a plain mongosh command will limit your permissions. Use your credentials from Step 1 to log in as an administrator:

Command:

mongosh -u your_admin_user -p 'your_admin_password' --authenticationDatabase admin

Replace your_admin_user and your_admin_password with the details from your credential file.

Method B: Verify Databases

Once logged in, run the following command inside the shell to ensure you have access:

test> show dbs

If you see a list including admin, config, and local, your installation is functioning perfectly. Type exit to return to the terminal.

5. Verify Version and Environment

To check the specific version of MongoDB and the shell installed on your VPS:

• Server Version: mongod --version

• Shell Version: mongosh --version

Troubleshooting Tips

• Command 'mongo' not found: This is expected in newer versions (v6.0+). Always use mongosh.

• Unauthorized Error: If you see MongoServerError[Unauthorized], it means you tried to run a command without logging in via the -u and -p flags shown in Step 4.

• Firewall: If connecting from an external app, ensure your VPS firewall allows traffic on port 27017.

For further assistance with your NoSQL hosting, visit our support portal at HostGraber.com.

Summary Checklist

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