centos启动rpcbind报错Job rpcbind.service/start failed with result 'dependency'
解决办法：
[root@node3-iot ~]# vim /etc/sysctl.conf
net.ipv6.conf.all.disable_ipv6 = 0
net.ipv6.conf.default.disable_ipv6 = 0
重启
[root@node3-iot ~]# systemctl restart rpcbind.service
[root@node3-iot ~]# systemctl restart nfs
