1 查看機器名
[root@localhost bin]# cat /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=localhost.localdomain
2 修改hosts文件
[root@localhost bin]# cat /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
默認的機器名是 [root@localhost bin] localhost
如果[root@localhost ] 不是localhost 而是 [root@it123 ]
那麼 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 這個後面添加
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 it123
修改完之後 重啓 activeMQ服務 即可