1. Install Erlang
Because RabbitMQ is developed in the Erlang language, you install Erlang first

yum install erlang

Download the RPM package

 wget http://www.rabbitmq.com/releases/rabbitmq-server/v3.6.15/rabbitmq-server-3.6.15-1.el7.noarch.rpm

3. Install after downloading

yum install rabbitmq-server-3.6.15-1.el7.noarch.rpm

4. Restart the service after installation

service rabbitmq-server start

5. Check service status

service rabbitmq-server status

6. Install the plug-in

/sbin/rabbitmq-plugins enable rabbitmq_management 

Restart the service

service rabbitmq-server restart

At this point, you can go to http://ip:15672 to access the page. The default password is “guest/guest”.
However, starting with version 3.3.0, access other than using guest/guest to log in to localhost is prohibited. The solution is to find
Rabbitmq_server-3.6.15 /ebin/ Rabbitmq_server-3.6.15 /ebin/ Rabbit.app

{loopback_users, [<<"guest">>]},

Is amended as:

{loopback_users, []},

Then restart it.
7. Access