ssh配置密钥登陆

mona included in Linux

2023-01-16 81 words One minute

Contents

nano /etc/ssh/sshd_config

#修改默认端口
Prot 25428

adduser username
apt update && apt install sudo
visudo

#在 User Privilege Specification 下加入一行 username ALL=(ALL) NOPASSWD: ALL
username ALL=(ALL) NOPASSWD: ALL

nano /etc/ssh/sshd_config
#PermitRootLogin Yes改为no
PermitRootLogin no
systemctl restart ssh

运行PuTTYgen

点击 Save public key 保存公钥，文件名为 id_rsa.pub

点击 Save private key 保存私钥，文件名为 id_rsa (PuTTY 私钥自带.ppk后缀)

将上方红框内的内容，向下滚动全部复制出来并保存，文件名为 authorized_keys

su username
cd /home/username/
mkdir .ssh
//将红框内容复制进去
vi authorized_keys
chmod 600 ~/.ssh/authorized_keys

sudo vi /etc/ssh/sshd_config
PasswordAuthentication no
PubkeyAuthentication  yes
sudo systemctl restart ssh