What ports does RabbitMQ use

Question

What ports does RabbitMQ Server use or need to have open on the firewall for a cluster of nodes   My  usr lib rabbitmq bin rabbitmq-env is set below which I m assuming are needed  35197    SERVER ERL ARGS   K true  A30  P 1048576      -kernel inet default connect options   nodelay true       -kernel inet dist listen min 35197      -kernel inet dist listen max 35197    I haven t touched the rabbitmq config to set a custom tcp listener so it should be listening on the default 5672   Here are the relevant netstat lines   tcp        0      0 0 0 0 0 4369           0 0 0 0             LISTEN      728 epmd  tcp        0      0 0 0 0 0 35197          0 0 0 0             LISTEN      5126 beam tcp6       0      0    5672                                    LISTEN      5126 beam   My questions are    for other nodes to be able to connect to the cluster  do all 3 ports 4369  5672 and 35197 need to be open  Why isn t 5672 running on tcp and not just tcp6

User · Accepted Answer

PORT 4369  Erlang makes use of a Port Mapper Daemon  epmd  for resolution of node names in a cluster  Nodes must be able to reach each other and the port mapper daemon for clustering to work   PORT 35197 set by inet dist listen min max Firewalls must permit traffic in this range to pass between clustered nodes  RabbitMQ Management console    PORT 15672 for RabbitMQ version 3 x PORT 55672 for RabbitMQ pre 3 x   PORT 5672 RabbitMQ main port   For a cluster of nodes  they must be open to each other on 35197  4369 and 5672   For any servers that want to use the message queue  only 5672 is required

User · Answer

Port Access  Firewalls and other security tools may prevent RabbitMQ from binding to a port  When that happens  RabbitMQ will fail to start  Make sure the following ports can be opened    4369  epmd  a peer discovery service used by RabbitMQ nodes and CLI tools  5672  5671  used by AMQP 0-9-1 and 1 0 clients without and with TLS  25672  used by Erlang distribution for inter-node and CLI tools communication and is allocated from a dynamic range  limited to a single port by default  computed as AMQP port   20000   See networking guide for details    15672  HTTP API clients and rabbitmqadmin  only if the management plugin is enabled   61613  61614  STOMP clients without and with TLS  only if the STOMP plugin is enabled   1883  8883   MQTT clients without and with TLS  if the MQTT plugin is enabled  15674  STOMP-over-WebSockets clients  only if the Web STOMP plugin is enabled   15675  MQTT-over-WebSockets clients  only if the Web MQTT plugin is enabled   Reference doc  https   www rabbitmq com install-windows-manual html

User · Answer

To find out what ports rabbitmq uses     epmd -names   Outputs   epmd  up and running on port 4369 with data  name rabbit at port 25672   Run these as root   lsof -i  4369 lsof -i  25672   More about epmd options

User · Answer

What ports is RabbitMQ using   Default  5672  the manual has the answer   It s defined in the RABBITMQ NODE PORT variable   https   www rabbitmq com configure html define-environment-variables  The number might be differently if changed by someone in the rabbitmq configuration file   vi  etc rabbitmq rabbitmq-env conf   Ask the computer to tell you   sudo nmap -p 1-65535 localhost  Starting Nmap 5 51   http   nmap org   at 2014-09-19 13 50 EDT Nmap scan report for localhost  127 0 0 1  Host is up  0 00041s latency   PORT      STATE         SERVICE 443 tcp   open          https 5672 tcp  open          amqp 15672 tcp open  unknown 35102 tcp open  unknown 59440 tcp open  unknown   Oh look  5672  and 15672  Use netstat   netstat -lntu Active Internet connections  only servers  Proto Recv-Q Send-Q Local Address               Foreign Address             State tcp        0      0 0 0 0 0 15672               0 0 0 0                     LISTEN tcp        0      0 0 0 0 0 55672               0 0 0 0                     LISTEN tcp        0      0    5672                                                 LISTEN   Oh look 5672   use lsof   eric dev    sudo lsof -i   grep beam beam smp  21216    rabbitmq   17u  IPv4 33148214      0t0  TCP   55672  LISTEN  beam smp  21216    rabbitmq   18u  IPv4 33148219      0t0  TCP   15672  LISTEN    use nmap from a different machine  find out if 5672 is open   sudo nmap -p 5672 10 0 1 71 Starting Nmap 5 51   http   nmap org   at 2014-09-19 13 19 EDT Nmap scan report for 10 0 1 71 Host is up  0 00011s latency   PORT     STATE SERVICE 5672 tcp open  amqp MAC Address  0A 40 0E 8C 75 6C  Unknown      Nmap done  1 IP address  1 host up  scanned in 0 13 seconds   Try to connect to a port manually with telnet  5671 is CLOSED   telnet localhost 5671 Trying 127 0 0 1    telnet  connect to address 127 0 0 1  Connection refused   Try to connect to a port manually with telnet  5672 is OPEN   telnet localhost 5672 Trying 127 0 0 1    Connected to localhost  Escape character is         Check your firewall   sudo cat  etc sysconfig iptables     It should tell you what ports are made open   -A INPUT -p tcp -m tcp --dport 5672 -j ACCEPT   Reapply your firewall   sudo service iptables restart iptables  Setting chains to policy ACCEPT  filter             OK    iptables  Flushing firewall rules                             OK    iptables  Unloading modules                                   OK    iptables  Applying firewall rules                             OK

[rabbitmq] What ports does RabbitMQ use?

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