How to Install MongoDB 8 on AlmaLinux 10

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MongoDB is a popular NoSQL database that stores data as JSON-like documents. It allows fast, scalable, and flexible data management, supports replication and sharding, and uses the MongoDB Query Language (MQL) for access.

Add MongoDB Repository

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Before installing MongoDB, manually add its repository because it is not available in the default AlmaLinux 10 repository.

Create the repository file

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vi /etc/yum.repos.d/mongodb.repo

Add the following lines

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[mongodb-org-8.0]
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/redhat/10/mongodb-org/8.0/x86_64/
gpgcheck=1
enabled=1
gpgkey=https://pgp.mongodb.com/server-8.0.asc

Install MongoDB

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dnf clean all
dnf makecache
dnf install -y mongodb-org

Start and Enable MongoDB Service

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systemctl start mongod
systemctl enable mongod

Check service status

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systemctl status mongod

Output:

● mongod.service - MongoDB Database Server
   Loaded: loaded (/usr/lib/systemd/system/mongod.service; enabled; vendor preset: enabled)
   Active: active (running) since Tue 2026-01-20 14:32:10 UTC; 20s ago
     Docs: https://docs.mongodb.org/manual
 Main PID: 10520 (mongod)
   Memory: 99.5M
   CGroup: /system.slice/mongod.service
           └─10520 /usr/bin/mongod -f /etc/mongod.conf

Access MongoDB Shell

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mongosh

Output:

Current Mongosh Log ID: 1b23cd098b2f4bc17dd21ab5
Connecting to: mongodb://127.0.0.1:27017/?directConnection=true
Using MongoDB: 8.0.x
Using Mongosh: 2.5.8

Create MongoDB Admin User

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Switch to admin database

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use admin

Create admin user

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db.createUser(
  {
    user: "Enter-A-user-Here",
    pwd: "Enter-A-Password-Here",
    roles: [ { role: "root", db: "admin" } ]
  }
)

List users

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show users

Enable Authentication in MongoDB

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Edit configuration file

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vi /etc/mongod.conf

Add security block

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security:
  authorization: enabled

Restart MongoDB

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systemctl restart mongod

Test without authentication

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show users

Output:

MongoServerError: command usersInfo requires authentication

Authenticate

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db.auth('Enter-A-user-Here', 'Enter-A-Password-Here')
exit

(Optional) Allow MongoDB in Firewall

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firewall-cmd --zone=public --add-port=27017/tcp --permanent
firewall-cmd --reload

This completes the installation and configuration of MongoDB 8 on AlmaLinux 10.