77 lines
1.8 KiB
Bash
77 lines
1.8 KiB
Bash
#!/bin/bash
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source ./variables
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echo "Installing dependencides... Please stay for a second, you will confirm the install"
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apt update
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apt install sudo wireguard-tools
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echo "Setting up user..."
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useradd -m -s /bin/bash $USERNAME
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echo "Configuring WireGuard..."
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WG_SUBNET="fc$(openssl rand -hex 1):$(openssl rand -hex 2):$(openssl rand -hex 2):$(openssl rand -hex 2)"
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WG_LISTEN_PORT=$(shuf -i 49152-65535 -n 1)
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WG_LOCAL_PRIVKEY=$(wg genkey)
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WG_LOCAL_PUBKEY=$(echo $WG_LOCAL_PRIVKEY | wg pubkey)
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cat <<EOF > /etc/wireguard/vmh-ssh-vpn.conf
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[Interface]
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ListenPort = $WG_LISTEN_PORT
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PrivateKey = $WG_LOCAL_PRIVKEY
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Address = $WG_SUBNET::1/64
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[Peer]
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PublicKey = $WIREGUARD_PUBKEY
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AllowedIPs = $WG_SUBNET::2/128
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EOF
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systemctl enable --now wg-quick@vmh-ssh-vpn
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echo "Configuring ssh..."
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mkdir /home/$USERNAME/.ssh
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echo $MY_SSH_KEY > /home/$USERNAME/.ssh/authorized_keys
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cat <<EOF > /etc/ssh/sshd_config.d/10-vmh_ssh.conf
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X11Forwarding no
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PasswordAuthentication no
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PubkeyAuthentication yes
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PermitRootLogin no
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ListenAddress $WG_SUBNET::1
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EOF
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mkdir /etc/systemd/system/sshd.service.d
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cat <<EOF > /etc/systemd/system/sshd.service.d/10-vmh-listen.conf
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[Unit]
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After=wg-quick@vmh-ssh-vpn.service
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EOF
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systemctl restart sshd
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echo "Configuring sudo..."
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cat <<EOF > /etc/sudoers.d/99-vmh-newuser
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$USERNAME ALL=(ALL:ALL) NOPASSWD:ALL
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EOF
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echo
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echo "BEFORE DISCONNECTING, FOLLOW THE FOLLOWING STEPS"
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echo "You won't be able to reconnect if you don't."
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echo
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echo "1. Install the WireGuard config (fill in the gaps)"
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echo
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echo "[Interface]"
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echo "PrivateKey = ..."
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echo "Address = $WG_SUBNET::2/64"
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echo "[Peer]"
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echo "Endpoint = ...:$WG_LISTEN_PORT"
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echo "PublicKey = $WG_LOCAL_PUBKEY"
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echo "AllowedIPs = $WG_SUBNET::1/128"
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echo
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echo "2. Use this command to connect"
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echo
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echo "ssh $USERNAME@$WG_SUBNET::1"
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