Port 5672 (AMQP (RabbitMQ))

AMQP 0-9-1 / 1.0 message broker port used by RabbitMQ, Qpid and Azure Service Bus clients.

Registered (user) port, 1024-49151 TCP Message queues Do not expose to the internet

What port 5672 is used for

AMQP 0-9-1 / 1.0 message broker port used by RabbitMQ, Qpid and Azure Service Bus clients.

Do not expose to the internet. Keep internal. RabbitMQ's default guest/guest account only works from localhost; do not re-enable it remotely.

Service nameProtoDescriptionAssigneeReference

amqp TCP AMQP Pieter Hintjens -

amqp UDP AMQP Pieter Hintjens -

amqp SCTP AMQP Martin Sustrik -

Registry dates for this port: registered 2006-01.

Linux: is anything listening on TCP 5672?

sudo ss -tlnp 'sport = :5672'

Linux / macOS: which process owns the port

sudo lsof -nP -i :5672

Older Linux / BSD (net-tools)

sudo netstat -tlnp | grep ':5672 '

Windows (Command Prompt)

netstat -ano | findstr :5672

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5672 -State Listen | Select LocalAddress,OwningProcess

From another machine

nc -vz -w 5 HOST 5672

From Windows

Test-NetConnection HOST -Port 5672

ufw

sudo ufw deny 5672/tcp

iptables

sudo iptables -A INPUT -p tcp --dport 5672 -j DROP

nftables

sudo nft add rule inet filter input tcp dport 5672 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block TCP 5672' -Direction Inbound -Protocol TCP -LocalPort 5672 -Action Block

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Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.