How to Install and Secure RabbitMQ Message Broker on Ubuntu 24.04 VPS with Management Web GUI

The Critical Role of Message Brokers in High-Concurrency Apps

When web applications process heavy operations—such as sending marketing email blasts, transposing user video uploads, generating PDF invoices, or processing webhook transactions—running them synchronously inside HTTP request threads causes page timeouts and server lockups. RabbitMQ is the industry's most dependable open-source message broker, enabling backend microservices (Node.js, Python, Go, PHP) to publish tasks asynchronously to distributed worker pools.

Step 1: Installing Erlang and RabbitMQ from Official Cloudsmith Repositories

# Install prerequisites
sudo apt update && sudo apt install -y curl apt-transport-https gnupg

# Add Team RabbitMQ package repository
curl -1sLF 'https://dl.cloudsmith.io/public/rabbitmq/rabbitmq-erlang/setup.deb.sh' | sudo -E bash
curl -1sLF 'https://dl.cloudsmith.io/public/rabbitmq/rabbitmq-server/setup.deb.sh' | sudo -E bash

# Install RabbitMQ server
sudo apt update && sudo apt install -y rabbitmq-server

Step 2: Enabling the Web Management Console

sudo rabbitmq-plugins enable rabbitmq_management
sudo systemctl restart rabbitmq-server

Step 3: Creating an Administrative Superuser

By default, the guest user is restricted to localhost connections only. Create a dedicated administrative user:

sudo rabbitmqctl add_user admin_user YOUR_STRONG_PASSWORD
sudo rabbitmqctl set_user_tags admin_user administrator
sudo rabbitmqctl set_permissions -p / admin_user ".*" ".*" ".*"

Access the web console at http://YOUR_CONTABO_IP:15672 and log in with your administrative credentials.