make sure your service provider runs a secure daily backup routine, otherwise you may lose some valuable data.
确保你的服务提供商运行有安全日常后备路径,否则你也许会丢失一些有价值的数据。
moreover, because each daily backup (except the very first) is so small, you can keep a long history of the files on hand.
另外,因为每个每日备份都非常小(除了第一个),可以保存长时间的文件历史。
once established, run rsync to create a daily backup that takes hardly any space, as shown in listing 9.
完成之后,运行rsync创建每日备份,这个备份几乎不占用任何空间,见 清单9。