小米运维



小米运维

1、可以镜像保存整个目录树和文件系统。

2、可以很容易做到保持原来文件的权限、时间、软硬链接等等。

3、无须特殊权限即可安装。

4、快速:第一次同步时rsync会复制全部内容,但在下一次只传输修改过的文件。rsync在传输数据的过程中可以实行压缩及解压缩操作,因此可以使用更少的带宽。

rsync可以通过rsh或ssh,也能以daemon模式去运行,在以daemon方式运行时rsync server会打开一个873端口,等待客户端去连接。连接时,rsync server会检查口令是否相符,若通过口令查核,则可以开始进行文件传输。第一次连通完成时,会把整份文件传输一次,以后则就只需进行增量备份。


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