Port 15672 RabbitMQ management · TCP

What runs on port 15672

RabbitMQ's management UI and HTTP API (the rabbitmq_management plugin). Queues, users, policies and message rates, and the ability to publish, purge and delete. The default guest account only works from localhost; still, the UI belongs on an internal network behind TLS, since any user with the "management" tag can read every queue name and rate.

Software that uses it: RabbitMQ management plugin · Prometheus rabbitmq_exporter (via the API)

Should port 15672 be open?

Private network or VPN only. Nothing good comes from this port being reachable from the internet. Keep it on an internal network, reach it over a VPN or an SSH tunnel, and firewall it from everything that does not need it.

• curl -u user:pass http://host:15672/api/overview is the health check; /api/queues lists queue depths.

Check port 15672

# on the host: is anything listening, and which process?
ss -ltnp 'sport = :15672'
sudo lsof -i :15672

# from another machine: is it reachable?
nc -zv host 15672
nmap -p 15672 host
curl -v telnet://host:15672      # raw TCP connect test, Ctrl-C to leave

A port that answers from the internet when it should not is the finding; nmap from a machine outside your network (or a VPS) is the honest test, because scans from inside the LAN pass the firewall you are trying to verify.

Allow or block port 15672

# ufw (Ubuntu/Debian)
sudo ufw allow from 10.0.0.0/8 to any port 15672 proto tcp
sudo ufw deny 15672/tcp

# nftables
nft add rule inet filter input ip saddr 10.0.0.0/8 tcp dport 15672 accept
nft add rule inet filter input tcp dport 15672 drop

# iptables (legacy)
iptables -A INPUT -p tcp --dport 15672 -s 10.0.0.0/8 -j ACCEPT
iptables -A INPUT -p tcp --dport 15672 -j DROP

# firewalld
sudo firewall-cmd --permanent --add-rich-rule='rule family=ipv4 source address=10.0.0.0/8 port port=15672 protocol=tcp accept'

Replace 10.0.0.0/8 with the networks that need access. Allowing by source address is the rule that matters; "allow 15672" with no source is just "open".

Related ports

• 5672 AMQP — RabbitMQ
• 4369 EPMD — Erlang port mapper (RabbitMQ)
• 25672 RabbitMQ inter-node

Part of the port number reference. Ports are 16-bit numbers; see also the subnet calculator and the packet decoder, which shows ports inside TCP and UDP headers.

Questions