rsync同步

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环境：

vmwara两台linux虚拟机

系统：SUSE linux 11 SP3

A机：172.27.34.210 B机：172.27.34.211

主机配置这里略过，IP配好基本ok

第一步：SSH配置

AB 两台主机开启SSHD服务，一般默认安装了，开启服务，并且禁用防火墙就行。

第二步：rsync服务

开启rsync服务在 vi /etc/xinetd.d/rsync中将 “disable=yes”改为“disable=no”

chkconfig rsync检验

第三步：运行rsync脚本

#!/bin/bash

backupf='/home/qwt/bckup.txt'
echo "Shell Script Backup Your Files / Directories Using rsync"
while [ x$desthost = "x" ]; do
read -p "Destination backup Server : " desthost
done
while [ x$destpath = "x" ]; do
read -p "Destination Folder : " destpath
done
for line in `cat $backupf`
do
echo "Copying $line ... "
rsync -ar "$line" "$desthost":"$destpath"
echo "DONE"
done

其中bckup.txt中包含需要同步的文件以及路径如：

/home/qwt/1.txt

/home/qwt/2.sh
/home/qwt/docs

这里会报一个错误：Copying /home/qwt/1.txt ...
The authenticity of host '172.27.34.211 (172.27.34.211)' can't be established.
ECDSA key fingerprint is 40:c2:34:00:0a:1e:51:c1:57:85:cb:01:7e:2d:2e:f8 [MD5].
Are you sure you want to continue connecting (yes/no)?

查阅网上资料，在绝对信任的主机之间可以采用以下方法屏蔽该错误提示

修改/etc/ssh/ssh_config文件

在最后加上 StrictHostKeyChecking no
UserKnownHostsFile /dev/null

再次运行 bash rsync.sh

先提示输入目的IP：

再提示输入目的路径：

DONE

Shell Script Backup Your Files / Directories Using rsync
Destination backup Server : 172.27.34.211
Destination Folder : /home/qwt
Copying /home/qwt/1.txt ...
Warning: Permanently added '172.27.34.211' (ECDSA) to the list of known hosts.
Password:
DONE
Copying /home/qwt/2.sh ...
Warning: Permanently added '172.27.34.211' (ECDSA) to the list of known hosts.
Password:
DONE
Copying /home/qwt/docs ...
Warning: Permanently added '172.27.34.211' (ECDSA) to the list of known hosts.
Password:
DONE

这里一共同步了三个文件，所以输入了三次密码。。。

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