Linux系统分发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。