[rabbitmq-discuss] MQTT login failed for "guest" access_refused even after mentioning loopback_users

Tue Jul 22 12:41:34 BST 2014

So if I do not use SSL , in that case how does the authentication occur? 
Anyone who is aware of the uri can post data to a topic with a client id ?

What is the significance of the user and pass (mentioned as default user 
and pass) mentioned in the rabbit config file?

I am using the default one and using the tag   loopback_users, []   for 
connecting from remote host. All is working fine.

Thanks and Regards,
Ankur Chakraborty

From:   Michael Klishin <mklishin at gopivotal.com>
To:     Ankur5 C <ankur5.c at tcs.com>
Cc:     Legacy list about RabbitMQ <rabbitmq-discuss at lists.rabbitmq.com>
Date:   22-07-2014 15:53
Subject:        Re: [rabbitmq-discuss] MQTT login failed for "guest" 
access_refused even after mentioning loopback_users

On 22 July 2014 at 10:52:11, Ankur5 C (ankur5.c at tcs.com) wrote:
> > Just wanted to know using Paho java client how can I connect a 
> rabbit mq mqtt broker using username and password.
> 
> At the broker side I have to add user and password and add the user 
> from rabbitmq ctl. Then what should be done at the paho java client 
> end ?
> 
> Please suggest with example.

Ankur,

You don't need to configure anything
in the Paho Java client, just provide a URI, client-id and (possibly) 
client WAL/persister.

This is what two MqttClient constructors do:
http://www.eclipse.org/paho/files/javadoc/index.html

Also, you do not technically have to add a new user to RabbitMQ but if you 
connect
from remote hosts and want to use reasonable security practices, that's a 
good idea.

That said, in the latter case non-authenticated connections is not what 
you want.
-- 
MK 

Staff Software Engineer, Pivotal/RabbitMQ

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