报错内容如下：
Error: unable to perform an operation on node 'rabbit@bogon'. Please see diagnostics information and suggestions below.
Most common reasons for this are:
- Target node is unreachable (e.g. due to hostname resolution, TCP connection or firewall issues)
- CLI tool fails to authenticate with the server (e.g. due to CLI tool's Erlang cookie not matching that of the server)
- Target node is not running
In addition to the diagnostics info below:
- See the CLI, clustering and networking guides on https://rabbitmq.com/documentation.html to learn more
- Consult server logs on node rabbit@bogon
- If target node is configured to use long node names, don't forget to use --longnames with CLI tools
DIAGNOSTICS ===========
attempted to contact: [rabbit@bogon]
rabbit@bogon:
- connected to epmd (port 4369) on bogon
- epmd reports node 'rabbit' uses port 25672 for inter-node and CLI tool traffic
- can't establish TCP connection to the target node, reason: timeout (timed out)
- suggestion: check if host 'bogon' resolves, is reachable and ports 25672, 4369 are not blocked by firewall
Current node details:
- node name: 'rabbitmqcli-70-rabbit@bogon'
- effective user's home directory: /var/lib/rabbitmq
- Erlang cookie hash: C3OUV0vVss/JC0cw1+XMhw==
处理步骤：
1、查看自己的主机名：hostname
2、在hosts文件中加入自己的IP和主机名：vi /etc/hosts
接下来就可以正常创建用户了
