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使用shell脚本实现自动SSH互信功能(转)
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下一篇 2015-09-22 14:17:01
/ 个人分类:shell
说假设有一个1000台节点的Hadoop集群,要配置节点之间的SSH免密码登录,该如何用
shell脚本实现?
#!/bin/expect
#循环1000台机器的IP地址,生成密钥文件authorized_keys
for ip in {cat ip.list}
do
ssh user@$ip ssh-keygen -t rsa &>/dev/null
expect{
"yes/no" { send "yes\r";exp_continue}
"password:"{send "$passwd\r";exp_continue}
}
cat ~/.ssh/id_rsa.pub > ~/.ssh/authorized_keys &> /dev/null
exit
if [ !-f ~/.ssh/authorized_keys ];<br> then
touch ~/.ssh/authorized_keys<br> fi
ssh user@$ip cat ~/.ssh/authorized_keys >> ~/.ssh/authorized_keys &> /dev/null
expect{
"yes/no" { send "yes\r";exp_continue}
"password:"{send "$passwd\r";exp_continue}
}
done
#scp authorized_keys 文件到各台机器上面。
for ip in {cat ip.list}
do
scp ~/.ssh/authorized_keys user@$ip:~/.ssh/
expect{
"yes/no" { send "yes\r";exp_continue}
"password:"{send "$passwd\r";exp_continue}
}
done
原文地址:http://www.cnblogs.com/vovlie/archive/2012/10/17/2727029.html
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