Add GPG key & repo
curl -fsSL https://www.mongodb.org/static/pgp/server-8.0.asc | \
sudo gpg -o /usr/share/keyrings/mongodb-server-8.0.gpg --dearmor
echo "deb [ arch=amd64,arm64 signed-by=/usr/share/keyrings/mongodb-server-8.0.gpg ] \
https://repo.mongodb.org/apt/ubuntu noble/mongodb-org/8.0 multiverse" | \
sudo tee /etc/apt/sources.list.d/mongodb-org-8.0.listInstall & start
sudo apt update
sudo apt install -y mongodb-org
sudo systemctl enable mongod
sudo systemctl start mongod
sudo systemctl status mongodQuick reference — URI patterns
Same VPS (internal)
mongodb://user:pass@127.0.0.1:27017/db?authSource=dbRemote app / Compass
mongodb://user:pass@VPS_IP:27017/db?authSource=dbAdmin access
mongodb://adminUser:pass@VPS_IP:27017/?authSource=admin.env.local key
MONGODB_URI=mongodb://user:pass@VPS_IP:27017/db?authSource=db