1.update openssl
yum update openssl
2.修改openssl配置
vim /etc/ssh/sshd_config
RSAAuthentication yesPubkeyAuthentication yesAuthorizedKeysFile .ssh/authorized_keys
3.重启ssh服务
servcie sshd restart
openssl配置
原文：http://www.cnblogs.com/jeffry/p/5066269.html
