[root@blockstorage ~]# rabbitmqctl change_password guest RABBIT_PASS

Changing password for user "guest" ...

Error: unable to connect to node rabbit@blockstorage: nodedown

DIAGNOSTICS

===========

nodes in question: [rabbit@blockstorage]

hosts, their running nodes and ports:

- unable to connect to epmd on blockstorage: timeout (timed out)

current node details:

- node name: rabbitmqctl2309@blockstorage

- home dir: /var/lib/rabbitmq

- cookie hash: 9MAewQpNA2Hn9l2WPQ++rw==

[root@blockstorage ~]# vi /etc/hosts

127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4

::         localhost localhost.localdomain localhost6 localhost6.localdomain6

127.0.0.1       blockstorage

192.168.     blockstorage

[root@blockstorage ~]# systemctl start rabbitmq-server.service

[root@blockstorage ~]# rabbitmqctl status

Status of node rabbit@blockstorage ...

[{pid,},

 {running_applications,[{rabbit,"RabbitMQ","3.1.5"},

                        {mnesia,"MNESIA  CXC 138 12","4.11"},

                        {os_mon,"CPO  CXC 138 46","2.2.14"},

                        {xmerl,"XML parser","1.3.6"},

                        {sasl,"SASL  CXC 138 11","2.3.4"},

                        {stdlib,"ERTS  CXC 138 10","1.19.4"},

                        {kernel,"ERTS  CXC 138 10","2.16.4"}]},

 {os,{unix,linux}},

 {erlang_version,"Erlang R16B03-1 (erts-5.10.4) [source] [64-bit] [smp:2:2] [async-threads:30] [hipe] [kernel-poll:true]\n"},

 {memory,[{total,},

          {connection_procs,},

          {queue_procs,},

          {plugins,},

          {other_proc,},

          {mnesia,},

          {mgmt_db,},

          {msg_index,},

          {other_ets,},

          {binary,},

          {code,},

          {atom,},

          {other_system,}]},

 {vm_memory_high_watermark,0.4},

 {vm_memory_limit,},

 {disk_free_limit,},

 {disk_free,},

 {file_descriptors,[{total_limit,},

                    {total_used,},

                    {sockets_limit,},

                    {sockets_used,}]},

 {processes,[{limit,},{used,}]},

 {run_queue,},

 {uptime,}]

...done.

[root@blockstorage ~]#