https://ops.docs.72602.space/linux/scripts/login_without_pwd/index.html copy id_rsa to other nodes yum install sshpass -y mkdir -p /extend/shell cat >>/extend/shell/distribute_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 distribute_pub.sh ./distribute_pub.sh Hugo en