Linux系统下分发SCP不需要输入密码配置

    首先在每个节点执行一下命令脚本

　　mkdir -p ~/.ssh

　　chmod 700 ~/.ssh

　　/usr/bin/ssh-keygen -t rsa

　　然后再需要批量分发的主机上

　　touch ~/.ssh/authorized_keys

　　ssh 192.168.1.20 cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys

　　说明：192.168.1.20是分发主机的IP地址

　　The authenticity of host 'linux1 (192.168.1.100)' can't be established.

　　RSA key fingerprint is 2f:cc:a1:4f:2b:67:01:6a:d1:9e:0b:ab:c8:9e:57:a1.

　　Are you sure you want to continue connecting (yes/no)? yes

　　Warning: Permanently added 'linux1,192.168.1.100' (RSA) to the list of known hosts.

　　oracle@linux1's password: xxxxx

　　在需要分发的主机执行

　　chmod 600 ~/.ssh/authorized_keys

　　在分发主机验证

　　ssh 192.168.1.19 hostname

　　RS9

　　在分发主机上常见 scp.sh 文件

　　从分发主机192.168.1.20向 192.168.1.19、192.168.1.10 分发文件

　　scp -r /usr/local/adsit/webapps/preroll/WEB-INF/classes root@192.168.1.19:/home/adsit/

　　scp -r /usr/local/adsit/webapps/preroll/WEB-INF/classes root@192.168.1.10:/home/adsit/

　　在分发主机执行 scp.sh 实现拷贝功能。