Port 5672 (TCP) — RabbitMQ (AMQP)

Check if port 5672 is open

On the server, see what is listening:

sudo ss -tulpn | grep ':5672 '

From another machine, test reachability:

nc -zv your-server.example.com 5672

Block port 5672 from the internet

With UFW (Ubuntu/Debian):

sudo ufw deny 5672

With firewalld (RHEL/AlmaLinux/Rocky):

sudo firewall-cmd --permanent --remove-port=5672/tcp && sudo firewall-cmd --reload

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