CentOS7 密钥登录

#生成密钥
ssh-keygen -t rsa

#进入.ssh目录
cd /root/.ssh/  

#重命名
mv id_rsa.pub authorized_keys 

#或者运行以下命令来将公钥导入
cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys

#修改权限
chmod 600 authorized_keys 

yum install -y lrzsz

# 配置 SSH
vim /etc/ssh/sshd_config

#配置密钥
AuthorizedKeysFile .ssh/authorized_keys 

#使用公钥
PubkeyAuthentication yes

#禁用密码登录
PasswordAuthentication no

# 重启生效
systemctl restart sshd