假如现在有两台机器A和B
我们要实现A免密登陆到B,需要做的操作有:
ssh-keygen -t rsa
,一路回车,会生成密钥id_rsa.pub
密钥scp到B服务器上1 | scp -r -P 9777 /home/xs/.ssh/id_rsa.pub xs@B:/home/xs/.ssh/id_rsa.pub |
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1 | cat /home/xs/.ssh/id_rsa.pub >> /home/xs/.ssh/authorized_keys |
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1 2 3 4 5 | 修改权限: chmod 700 /home/xs/.ssh chmod 600 /home/xs/.ssh/authorized_keys 修改scp的目标目录权限,给写权限,如果该目录是root用户创建的,我们需要以root用户身份进行修改权限 chmod 777 /master_to_slave |
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1 2 3 4 5 | [xs@ backup_sql_master]$ for i in `ls -l | awk '{print $9}' |grep novel_all_2018032`;do scp -r -P 端口 /backup_sql_master/$i xs@B:/master_to_slave/$i;done novel_all_20180320.tar.gz 100% 3342MB 63.7MB/s 00:52 novel_all_20180321.tar.gz 100% 3386MB 63.1MB/s 00:53 novel_all_20180322.tar.gz 100% 3429MB 62.9MB/s 00:54 这里指定端口时使用大写的P |
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