[rabbitmq-discuss] RabbitMQ clustering with SSL

ramviv.123 at gmail.com ramviv.123 at gmail.com
Tue Aug 13 22:39:53 BST 2013

We also noticed two other failures.  When we kill the epmd process and 
restart rabbitMQ we see the following error.  

{error_logger,{{2013,8,13},{17,31,53}},"Protocol: ~p: not 

   According to one other thread here, this should go away if we use the 
latest version of erlang, which we are using.  Rabbit MQ also seems to 
recognize the latest version of erlang, when we do rabbitmqctl status. We 
checked this  removing the SSL.configuration.  As mentioned in the ssl 
config guide for erlang, if we uncomment the commented out section of the 
config file below, the RRabbitMQ server would just hang.  I am able to 
connect the WebUI, but I never get the success message on the terminal I 
started the server.  Also, the other node when brought up, times out trying 
to connect to this node.


On Tuesday, August 13, 2013 12:00:57 PM UTC-4, ramvi... at gmail.com wrote:
> Hi,
>     We are setting up a RabbitMQ env with clustering on the LAN and 
> federated on the WAN.  We also intend to use consistent hash on the 
> receiver side.  We were able to successfully setup a federated 
> configuration with ssl enabled.  But we are having issues trying to setup 
> ssl with clusters.  We are using RabbitMQ 3.1.3 with erlang 
> version  We have setup the erlang config based on 
> http://www.erlang.org/doc/apps/ssl/ssl_distribution.html.   I am able 
> connect tru an erlang client server program to send data back and forth and 
> so I know the ssl with erlang works.  But when I bring RabbitMQ with 
> clusters and take a TCP dump of the packets, the data transfer seem to be 
> clear text.  Is there a way to check if the clusters are configured for ssl 
> by any other means.  Also, would appreciate if someone can point out what 
> am I doing wrong here.  Here is the env file (rabbitmq-env.conf)
> SERVER_START_ARGS="-boot /usr/lib64/erlang/releases/R15B03/start_ssl 
> -proto_dist inet_tls"
> /usr/lib64/erlang/lib/ssl-5.1.2/ebin"
> /usr/lib64/erlang/lib/asn1-1.8/ebin"
> #SERVER_START_ARGS="${SERVER_START_ARGS} -ssl_portprogram_dir 
> /usr/lib64/erlang/lib/ssl-5.1.2/ebin"
> SERVER_START_ARGS="${SERVER_START_ARGS} -ssl_dist_opt server_cacertfile 
> /etc/openssl/all_cacerts.pem"
> SERVER_START_ARGS="${SERVER_START_ARGS} -ssl_dist_opt server_certfile 
> /etc/openssl/nn-vmrh5/cert.pem"
> SERVER_START_ARGS="${SERVER_START_ARGS} -ssl_dist_opt server_keyfile 
> /etc/openssl/nn-vmrh5/key.pem"
> SERVER_START_ARGS="${SERVER_START_ARGS} -ssl_dist_opt server_verify 1"
> server_fail_if_no_peer_cert true"
> server_secure_renegotiate true"
> SERVER_START_ARGS="${SERVER_START_ARGS} -ssl_dist_opt client_cacertfile 
> /etc/openssl/all_cacerts.pem"
> SERVER_START_ARGS="${SERVER_START_ARGS} -ssl_dist_opt client_certfile 
> /etc/openssl/nn-vmrh5/cert.pem"
> SERVER_START_ARGS="${SERVER_START_ARGS} -ssl_dist_opt client_keyfile 
> /etc/openssl/nn-vmrh5/key.pem"
> SERVER_START_ARGS="${SERVER_START_ARGS} -ssl_dist_opt client_verify 1"
> client_secure_renegotiate true"
> Here is the rabbitmq.config for clustering and ssl option set for other 
> modes.
> [nn-vmrh5: /etc/rabbitmq]vi rabbitmq.config
> [
>     {rabbit, [
>         {default_vhost, <<"alert">>},
>         {tcp_listeners, [5672]},
>         {ssl_listeners, [5671]},
>         {rabbitmq_tracing, [{username, "guest"}]},
>         {cluster_nodes, ['rabbit at nn-vmrh5','rabbit at nn-vmrh5g']},
>         {ssl_options, [{cacertfile,"/etc/openssl/all_cacerts.pem"},
>                        {certfile,"/etc/openssl/nn-vmrh5/cert.pem"},
>                        {keyfile,"/etc/openssl/nn-vmrh5/key.pem"},
>                        {verify,verify_peer},
>                        {fail_if_no_peer_cert,true}] },
>         {auth_mechanisms, ['PLAIN', 'AMQPLAIN', 'EXTERNAL']},
>         {ssl_cert_login_from, common_name},
>         {log_levels, [{connection, info}]}
>     ] }
> ].
>    Would really appreciate any help on this.
> Thanks
> Venkat
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