2.对内核和用户权限没有特别要求;
3.Unison是双向的,它能自动处理两分拷贝中更新没有冲突的部分,有冲突的部分将会显示出来让用户选择更新策略;
4.只要是能连通的两台主机,就可以运行unison,可以直接使用socket连接或安全的ssh连接方式,对带宽的要求不高,使用类似rsync的压缩传输协议。
#server1地址:192.168.20.1#shell:
#!/bin/bash
ip2="192.168.20.2"
ip3="192.168.20.3"
src2="/home/server1/"
dst2="/home/server2/"
dst3="/home/server3/"
/usr/local/bin/inotifywait -mrq -e create,delete,modify,move $src2 | while read line do
/usr/local/bin/unison -batch $src2 ssh://$ip2/$dst2
/usr/local/bin/unison -batch $src2 ssh://$ip3/$dst3
echo -n "$line " >> /var/log/inotify.log
echo `date | cut -d " " -f1-4` >> /var/log/inotify.log
done
server2 地址192.168.20.2
shell
#!/bin/bash
ip1="192.168.20.1"
ip3="192.168.20.3"
src1="/home/server2/"
dst1="/home/server1/"
dst3="/home/server3/"
/usr/local/bin/inotifywait -mrq -e create,delete,modify,move $src1 | while read line do
/usr/local/bin/unison -batch $src1 ssh://$ip1/$dst1
/usr/local/bin/unison -batch $src1 ssh://$ip3/$dst3
echo -n "$line " >> /var/log/inotify.log
echo `date | cut -d " " -f1-4` >> /var/log/inotify.log
done
server3 地址192.168.20.3
shell
#!/bin/bash
ip1="192.168.20.1"
ip2="192.168.20.2"
src3="/home/server3/"
dst1="/home/server1/"
dst2="/home/server2/"
/usr/local/bin/inotifywait -mrq -e create,delete,modify,move $src3 | while read line do
/usr/local/bin/unison -batch $src3 ssh://$ip1/$dst1
/usr/local/bin/unison -batch $src3 ssh://$ip2/$dst2
echo -n "$line " >> /var/log/inotify.log
echo `date | cut -d " " -f1-4` >> /var/log/inotify.log
done
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