Login Without Pwd

copy id_rsa to other nodes

yum install sshpass -y
mkdir -p /extend/shell

cat >>/extend/shell/fenfa_pub.sh<< EOF
#!/bin/bash
ROOT_PASS=root123
ssh-keygen -t rsa -f ~/.ssh/id_rsa -P ''
for ip in 101 102 103 
do
sshpass -p\$ROOT_PASS ssh-copy-id -o StrictHostKeyChecking=no 192.168.29.\$ip
done
EOF

cd /extend/shell
chmod +x fenfa_pub.sh

./fenfa_pub.sh