全新Ubuntu初始化配置

• 常用软件安装

sudo apt update
sudo apt install vim tmux proxychains git curl hugo -y

sudo apt upgrade

• SSH安装与配置
• 安装ssh服务并设置开机自启

sudo apt update
sudo apt install ssh -y

sudo systemctl enable ssh
sudo systemctl start ssh
sudo systemctl status ssh

2. SSH免密登录
   生成SSH公私钥, 将pub内容追加写入到 authorized_keys

ssh-keygen -t rsa

#touch ~/.ssh/authorized_keys
cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys

chmod 600 ~/.ssh/authorized_keys
chmod 700 ~/.ssh

3. sshd_config配置
   编辑 /etc/ssh/sshd_config 文件，

sudo vim /etc/ssh/sshd_config

进行以下配置，注意路径：

PubkeyAuthentication yes

AuthorizedKeysFile    /home/torrk/.ssh/authorized_keys

可以通过禁用密码登录提高安全性

PasswordAuthentication no