修改HOST文件，设置网络访问地址

hostnamectl

hostname --查看主机名称

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vim /etc/hosts

127.0.0.1      localhost

127.0.1.1      ubuntu

172.19.25.91 slave1

172.19.25.92 slave2

172.19.20.76 registry.fpi-inc.hz

# The following lines are desirable for IPv6 capable hosts

::1    localhost ip6-localhost ip6-loopback

ff02::1 ip6-allnodes

ff02::2 ip6-allrouters