ssh 证书登录

客户端

ssh-keygen -t rsa #生成证书
ssh -i /demo/.ssh/id_rsa demo@<ssh_server_ip> #指定私钥文件登录
vi /etc/ssh/ssh_config
IdentityFile ~/.ssh/id_rsa #设置私钥路径

服务器

apt-get install openssh-server
mkdir -p ~/.ssh/
cat id_rsa.pub >> ~/.ssh/authorized_keys #先上传公钥id_rsa.pub 再追加到authorized_keys
vi /etc/ssh/sshd_config

StrictModes no
PermitRootLogin yes

RSAAuthentication yes
PubkeyAuthentication yes
AuthorizedKeysFile      .ssh/authorized_keys #指定authorized_keys文件

PasswordAuthentication no 是否禁用密码登录

/etc/init.d/sshd restart