Centos_Mount挂载linux系统
1.使用NFS
需要提前在客户端预授权，不需要持账号密码，赋予只读或者读写权限。
2.手动挂载命令
mount -t nfs 192.168.99.100:/Backup/WordPress/Main / www/backup/site
mount -t nfs 192.168.99.100:/Backup/WordPress/Database /www/backup/database
3.自动挂载命令，vi /etc/fstab最后加入：
192.168.99.100:/Backup/WordPress/Main /www/backup/site nfs defaults 0 0
192.168.99.100:/Backup/WordPress/Database /www/backup/database nfs defaults 0 0
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