Aquilenet

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# Wireguard

Le VPN Kiss, utilisant les dernières règles de l'art, construit pour être audité & performant ! au revoir IPSec & OpenVPN !

Aquilenet utilise Wireguard avec succès depuis mi-2019, pour interconnecter une partie de ses [[îlots]] à son [[infrastructure:|cœur de réseau]].

## Installation

https://www.wireguard.com/install/

Dans le Kernel Linux : via DKMS pour l'instant (2019-08-15) et en userspace écrit en GO (en cours de migration en Rust) sur les autres plateformes (*BSD, OpenWRT, Android, Windows).

Pour Debian stable, au départ « Stretch » 9.8 et dorénavant « Buster » 10.0, des paquets `wireguard{,-dkms,-modules}` sont installables depuis le dépôt `unstable` (uniquement).  Les mises à jour y sont fréquentes, par exemple les versions disponibles au 2019-03-07 étaient les 0.0.20190227-1, celles disponibles au 2019-07-19 étaient les 0.0.20190702-1.

ATTENTION : sous Debian Stretch, [une bogue](https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=934763) introduite dans la dernière mise à jour du paquet des entêtes du noyau (2019-09-14), casse la compilation du module Wireguard.  Il reste possible de compiler le module avec la version précédente, puis de l'utiliser avec la dernière version du noyau.

## Configuration

### Serveur

~~~

umask 077

wg genkey > /etc/wireguard/private

wg genkey | tee /etc/wireguard/private | wg pubkey > /etc/wireguard/publickey

wg set wg0 private-key /etc/wireguard/private

ip link set wg0 up

cat << EOF > /etc/wireguard/wireguard.conf

[Interface]

ListenPort = 50000 

PrivateKey = `cat /etc/wireguard/private`

[Peer]

PublicKey = Va0X1zOpRc9471Aa3DEUUy7UkAv5aq5SojtIPqOSqwg=

AllowedIPs = 10.33.33.0/24

Endpoint = 185.233.100.19:50000

EOF

~~~

### Client

~~~

umask 077

wg genkey | tee /etc/wireguard/private | wg pubkey > /etc/wireguard/publickey

wg set wg0 private-key /etc/wireguard/private

ip link add dev wg0 type wireguard

ip link set wg0 up

~~~

### Config serveur (Hypnos)

~~~

#!/bin/bash

set -x -e

# Creating the wireguard interface

ip link add dev wg0 type wireguard

# Setting the IP on the wireguard interface

ip address add dev wg0 185.233.101.127/24

# Configuring the wireguard server

wg set wg0 listen-port 50000 private-key /etc/wireguard/private

# Starting up the wireguard interface

ip link set up dev wg0

# Add Client

wg set wg0 peer W/iRbRNZhftkcmkfS/pUNcyDJ1YHB0cBEDigzed6+B0= allowed-ips 185.233.101.126/32

# Create the static route for the client

ip route add 185.233.101.126/32 dev wg0 proto static

~~~

### Config client

~~~

#!/bin/bash

set -e -x

# Creating the wireguard interface

ip link add dev wg0 type wireguard

# Setting the IP on the wireguard interface

ip address add dev wg0 185.233.101.126/24

# Configuring wireguard

wg set wg0 private-key ./private

# Starting up the wireguard interface

ip link set up dev wg0

# Connect to the server

wg set wg0 peer 'XRhI4WqBipwY21pxPZ9Q7EWkypnQCKKtJjqu2tUUTVo=' allowed-ips 0.0.0.0/0 endpoint 185.233.100.9:50000

~~~

### 1er test: @Sacha's Home (Fibre Bouygues) --> @Hypnos (VM Aquilenet)

~~~

root@hypnos:/etc/wireguard# iperf3 -s

-----------------------------------------------------------

Server listening on 5201

-----------------------------------------------------------

Accepted connection from 10.33.33.2, port 60038

[  5] local 10.33.33.1 port 5201 connected to 10.33.33.2 port 60040

[ ID] Interval           Transfer     Bandwidth

[  5]   0.00-1.00   sec  15.1 MBytes   127 Mbits/sec                  

[  5]   1.00-2.00   sec  19.9 MBytes   167 Mbits/sec                  

[  5]   2.00-3.00   sec  20.1 MBytes   169 Mbits/sec                  

[  5]   3.00-4.00   sec  20.1 MBytes   169 Mbits/sec                  

[  5]   4.00-5.00   sec  19.7 MBytes   166 Mbits/sec                  

[  5]   5.00-6.00   sec  20.0 MBytes   168 Mbits/sec                  

[  5]   6.00-7.00   sec  20.2 MBytes   169 Mbits/sec                  

[  5]   7.00-8.00   sec  20.2 MBytes   170 Mbits/sec                  

[  5]   8.00-9.00   sec  20.1 MBytes   169 Mbits/sec                  

[  5]   9.00-10.00  sec  20.2 MBytes   169 Mbits/sec                  

[  5]  10.00-10.03  sec   566 KBytes   165 Mbits/sec                  

- - - - - - - - - - - - - - - - - - - - - - - - -

[ ID] Interval           Transfer     Bandwidth

[  5]   0.00-10.03  sec  0.00 Bytes  0.00 bits/sec                  sender

[  5]   0.00-10.03  sec   196 MBytes   164 Mbits/sec                  receiver

-----------------------------------------------------------

Server listening on 5201

-----------------------------------------------------------

~~~

~~~

root@hypnos:/etc/wireguard# wg

interface: wg0

  public key: Va0X1zOpRc9471Aa3DEUUy7UkAv5aq5SojtIPqOSqwg=

  private key: (hidden)

  listening port: 50000

peer: VEfmgnq/aXPX3qBB7Q2fgxAawQdfUYZDRKEQSPC8tnA=

  endpoint: 5.51.0.155:3418

  allowed ips: 10.33.33.0/24

  latest handshake: 4 minutes, 30 seconds ago

  transfer: 208.75 MiB received, 6.68 MiB sent

~~~

## InstallDebian sur Apu2

https://blog.pgeiser.com/posts/2017/04/installing-debian-stretch-on-a-machine-without-a-graphic-card/

~~~

apt-get install aptitude \

     dhcpd resolvconf \

     curl dnsutils htop iperf3 tcpdump tmux whois \

     debian-security-support debsums needrestart

~~~

~~~

#!/bin/bash

gw=`ip  route | awk '/default/ { print $3 }'`

sysctl -w net.ipv4.ip_forward=1

ip link add dev wg0 type wireguard

ip address add dev wg0 10.33.33.2/24

ip link set up dev wg0

ip route add 185.233.100.19/32 via $gw dev enp1s0

ip route del default

ip route add default dev wg0

wg setconf wg0 /etc/wireguard/wg0.conf

~~~

https://git.zx2c4.com/WireGuard/about/src/tools/man/wg-quick.8

https://git.zx2c4.com/WireGuard/about/src/tools/wg.8

https://vincent.bernat.ch/fr/blog/2018-vpn-wireguard-route