[root@iZuf63gwewjw594wdtfmh7Z bin]# hostname
iZuf63gwewjw594wdtfmh7Z
[root@iZuf63gwewjw594wdtfmh7Z bin]# vi /etc/hosts
#hosts文件中加入 hostname名称
127.0.0.1 localhost localhost.localdomain localhost4 localhost iZuf63gwewjw594wdtfmh7Z
127.0.0.1 iZnee6hia1crhwZ4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6