今日安装rabbitmq学习AMQP，启动rabbitmq失败，提示以下错误：
[root@leeon sbin]# rabbitmq-server start
Activating RabbitMQ plugins ...
0 plugins activated:
ERROR: unexpected epmd error: address
遂google找到解决方法：
It turns out this is a simple hostname resolution issue. For reasons unknown, my mac's hostname was not resolving to an IP for an interface that was being used. This was easily solved by editing /etc/hosts and adding an entry matching the output of 'hostname' so that it always resolves to 127.0.0.1:
[rob@macbook ~]$ hostname
rsmbp.local
[rob@macbook ~]$ cat /etc/hosts
##
# Host Database
#
# localhost is used to configure the loopback interface
# when the system is booting. Do not change this entry.
##
127.0.0.1 localhost
255.255.255.255 broadcasthost
::1 localhost
fe80::1%lo0 localhost
127.0.0.1 rsmbp rsmbp.local
执行hostname命令查看本机主机名，然后在hosts文件中将主机名指向127.0.0.1 这里要注意的是如果主机名是rsmbp.local，那么配置的时候要使rsmbp 和 rsmbp.local 均指向127.0.0.1
就比如我自己的vps中的指向
127.0.0.1 leeon leeon.me