VPSサーバーを構築後、基本的な設定を行うシェル。実行ユーザーの追加、 root ログインの禁止、 ssh 公開鍵設定など。

Initial_VPS_Configurations.sh

# ADD USER
useradd foobar
passwd foobar
# Enter password.

# APPEND USER TO WHEEL GROUP (to grant sudo privilege)
usermod -G wheel foobar
visudo
# Edit following line:
# %wheel        ALL=(ALL)       ALL

# Add public key in `/root/.ssh/authorized_keys` before the following commands.
cp /root/.ssh/authorized_keys /home/foobar/.ssh/
chown -R foobar:foobar /home/foobar/

vim /etc/ssh/sshd_config
# Edit as:
#   PermitRootLogin no
#   PasswordAuthentication no
systemctl restart sshd.service