+++
title = "Wireguard Gateway & Android"
date = 2019-07-07T02:02:05+02:00
author = "MH"
cover = ""
tags = ["VPN", "Wireguard", "Android", "Setup"]
description = "Setup a Linux Wireguard Gateway and connet with Android"
showFullContent = false
draft = true
+++

# Setup your Linux Server

Your Linux Server should be reachable throu an public via UDP.
If the IP address changes then DynDNS works just fine.

First **install WireGuard** on your Linux server. On the official website you will find
the right way for your Linux distro:
[WireGuard.com/install](https://www.wireguard.com/install/)

Then **configure** the Gateway.
We will use the 100.64.0.0/10 range (RFC 6598) because it wont colide with private IPv4 adresses (RFC 1918).

    echo '[Interface]' > /etc/wireguard/wg0.conf
    echo "PrivateKey = $(wg genkey)" >> /etc/wireguard/wg0.conf
    echo 'ListenPort = 50002' >> /etc/wireguard/wg0.conf
    echo "Address = 100.64.0.1/10" >> /etc/wireguard/wg0.conf

    iptables -t nat -A POSTROUTING -s 100.64.0.0/10 -o eth0 -j MASQUERADE
    systemctl enable --now wg-quick@wg0 && systemctl status wg-quick@wg0

To get the public key type:

    wg pubkey <<<$(grep PrivateKey /etc/wireguard/wg_obermui.conf  | cut -d ' ' -f3)

# Setup your Android

Download the App from [F-Droid](https://f-droid.org/en/packages/com.wireguard.android/) or [Google Play](https://play.google.com/store/apps/details?id=com.wireguard.android).


use [ABC].jgp to explane

# Add Android Client to Server

    [Peer]                            >> /etc/wireguard/wg0.conf
    PublicKey = <Client-Pub-Key>      >> /etc/wireguard/wg0.conf
    AllowedIPs = 100.64.0.101/32      >> /etc/wireguard/wg0.conf

    systemctl restart wg-quick@wg0 && ystemctl status wg-quick@wg0

________________________________

# Sources
look at
https://www.wireguard.com/quickstart/

use config from ct (heise)
https://www.heise.de/select/ct/2019/5/1551091519824850

Witepaper https://www.wireguard.com/papers/wireguard.pdf

Demo Video https://video.obermui.de/videos/watch/5009724a-a670-4130-bc99-4ab820773da6