Wireguard-ui

Links

• Wireguard
• https://adminforge.de/linux-allgemein/vpn/wireguard-vpn-server-mit-web-interface-einrichten/
• https://github.com/ngoduykhanh/wireguard-ui

Installation

apt update && apt install -y wireguard curl tar
cd /etc/wireguard
# Port öffnen:
ufw allow 51820/udp
# IP-forwarding:
echo "net.ipv4.ip_forward=1" >> /etc/sysctl.conf
echo "net.ipv6.conf.all.forwarding=1" >> /etc/sysctl.conf
sysctl -p

WireGuard UI Startscript erstellen

SCRIPT_START=/etc/wireguard/start-wgui.sh
cat <<EOF > $SCRIPT_START
#!/bin/bash
 
cd /etc/wireguard
./wireguard-ui -bind-address 0.0.0.0:5000
EOF
chmod +x $SCRIPT_START

WireGuard UI

SERVICE=/etc/systemd/system/wgui-web.service
cat <<EOF > $SERVICE
[Unit]
Description=WireGuard UI
 
[Service]
Type=simple
ExecStart=$SCRIPT_START
 
[Install]
WantedBy=multi-user.target
EOF

WireGuard UI Download und Update Script

SCRIPT_UPDATE=/etc/wireguard/update.sh
cat <<EOF > $SCRIPT_UPDATE
#!/bin/bash
 
VER=\$(curl -sI https://github.com/ngoduykhanh/wireguard-ui/releases/latest | grep "location:" | cut -d "/" -f8 | tr -d '\r')

echo "downloading wireguard-ui \$VER"
curl -sL "https://github.com/ngoduykhanh/wireguard-ui/releases/download/\$VER/wireguard-ui-\$VER-linux-amd64.tar.gz" -o wireguard-ui-\$VER-linux-amd64.tar.gz
 
echo -n "extracting "; tar xvf wireguard-ui-\$VER-linux-amd64.tar.gz
 
echo "restarting wgui-web.service"
systemctl restart wgui-web.service
EOF
chmod +x $SCRIPT_UPDATE

# Ausführen
cd /etc/wireguard ; ./update.sh

• ACHTUNG: Die -bind-address 0.0.0.0:5000 sollte aus Sicherheitsgründen, sobald der erste Tunnel steht, gegen die WireGuard Server IP-Adresse 10.252.1.0 ausgetauscht werden!

WireGuard Konfigurationsdatei von Systemd überwachen lassen

WG_ID=wg0
cat <<EOF > /etc/systemd/system/wgui.service
[Unit]
Description=Restart WireGuard
After=network.target
 
[Service]
Type=oneshot
ExecStart=/bin/systemctl restart wg-quick@$WG_ID.service
 
[Install]
RequiredBy=wgui.path
EOF
 
cat <<EOF > /etc/systemd/system/wgui.path
[Unit]
Description=Watch /etc/wireguard/$WG_ID.conf for changes
 
[Path]
PathModified=/etc/wireguard/$WG_ID.conf
 
[Install]
WantedBy=multi-user.target
EOF

Dienste aktivieren und starten

WG_ID=wg0
touch /etc/wireguard/wg0.conf
systemctl enable wgui.{path,service} wg-quick@$WG_ID.service wgui-web.service
systemctl start wgui.{path,service}

WireGuard UI öffnen und einstellen

• Im Browser: http://<server>:5000
• admin admin
• Global Settings
  • Endpoint kontrollieren
  • DNS ersetzen: 1.1.1.1 durch 176.9.93.198, 176.9.1.117
• Wireguard Server
  • Post Up Script: Öffentliches Interface sei eth0:

iptables -A FORWARD -i %i -j ACCEPT; iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE

• Post Down Script:

iptables -D FORWARD -i %i -j ACCEPT; iptables -t nat -D POSTROUTING -o eth0 -j MASQUERADE

• Wireguard Clients
  • neue Clients eintragen

Linux-Client installieren

apt install wireguard-tools

• Konfiguration von Server downloaden (mit wireguard-gui) oder selber erstellen:

WG_ID=wg0
CONFIG=/etc/wireguard/$WG_ID.conf
if [ -e $CONFIG ]; then
  echo "+++ $CONFIG already exists"
else
  cat <EOS >$CONFIG
[Interface]
Address = 10.58.100.3/32
PrivateKey = IS_A_PRIVATE_KEYGXRXzAsIK4H3dzHXno=
DNS = 176.9.93.198,176.9.1.117
MTU = 1450
FwMark = 0xca6c

[Peer]
PublicKey = /IS_ANY_VALUE_4jj/NfSYO7ROfGk4fVo6ei+YmgE=
PresharedKey = kO19Y3S62g8Cw9Pfg7A57NZloqBlW9FpbWjzed10sjQ=
AllowedIPs = 10.58.0.0/16
Endpoint = 207.180.255.91:51820
PersistentKeepalive = 15
EOS
fi

WG_ID=wg0
wg-quick up $WG_ID

Fehlersuche

Test, ob Ping-Pakete ankommen

• Auf dem Server:

tcpdump icmp -i wg0