cp -r/etc/apt/sources.list/etc/apt/sources.list.bak
sed -i's#http://deb.debian.org#https://mirrors.aliyun.com#g' /etc/apt/sources.list
sudo apt update
sudo apt install openssh-server
sudo systemctl status ssh
/etc/init.d/ssh start
sudo echo " PermitRootLogin yes " >> /etc/ssh/sshd_config
sudo ufw allow ssh
sudo systemctl disable --now
sudo systemctl enable --now ssh
cat ~/home/id_rsa.pub >> ~/.ssh/authorized_keys
### 更新软件包索引
sudo apt update
### 安装 ssh 服务
sudo apt install openssh-server
### 查看 ssh 状态
sudo systemctl status ssh
- 如果运行状态不为active(running)，需要手动开启，命令为:
/etc/init.d/ssh start
### 修改 ssh 配置
sudo vim /etc/ssh/sshd_config
# 将PermitRootLogin prohibit-password那一行修改为PermitRootLogin yes
# 去掉前面的#号将port 22前面的#去掉
### 检查防火墙
sudo ufw allow ssh
### 重新注册ssh服务并附带立马启动
sudo systemctl disable --now ssh
sudo systemctl enable --now ssh
### ssh免密登录设置方法
cat ~/home/id_rsa.pub >> ~/.ssh/authorized_keys
