Selfhosted @lemmy.world TelepathicWalrus @lemmy.world 1y ago

Looking to chain multiple VPNs with docker

I have a paid external vpn(Nordvpn using gluetun) and am currently hosting my own wireguard vpn on my server through docker. is there a way to get the traffic from my selfhosted vpn to tunnel through my paid vpn? This is my docker-compose file atm.

services:
  gluetun_test:
    image: qmcgaw/gluetun
    container_name: gluetun_test
    cap_add:
      - NET_ADMIN
    ports:
      - "5010:5000"
      # Port of the WireGuard VPN server
      - "36843:36843/udp"
    environment:
      - VPN_SERVICE_PROVIDER=nordvpn
      - VPN_TYPE=wireguard
      - WIREGUARD_PRIVATE_KEY=redacted
      - SERVER_COUNTRIES=United Kingdom

  wireguard:
    image: linuxserver/wireguard:latest
    container_name: wireguard
    cap_add:
      - NET_ADMIN
    environment:
      - PUID=1000
      - PGID=1000
    volumes:
      - ./wireguard/config:/config
#    ports:
      # Port for WireGuard-UI
#      - "5010:5000"
      # Port of the WireGuard VPN server
#      - "36843:36843/udp"
    network_mode: service:gluetun_test

wg0.conf

[Interface]
Address = 10.252.1.0/24
ListenPort = 36843
PrivateKey = redacted
MTU = 1450
PostUp = iptables -A FORWARD -i wg0 -j ACCEPT; iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
PostDown = iptables -D FORWARD -i wg0 -j ACCEPT; iptables -t nat -D POSTROUTING -o eth0 -j MASQUERADE
Table =

Any help would be great! Thanks!

8 comments

Sorry, I am not super clear of what you are asking.

You do have gluetun which is used to connect to NordVPN. Then you have wireguard, to which you connect from somewhere, and you want essentially:

client -> wireguard -> wireguard container -> gluetun container -> internet?
- Yeah, this is correct. I have a self-hosted Wireguard VPN which i connect to and i want my internet traffic to go through the gluetun docker through nordvpn. client -> wireguard container -> gluetun container -> internet
  
  https://www.youtube.com/watch?v=xbSfaKwyfXE
  
  This should help
ip rule add from WG-NET table TABLE ip route add default via GLUETUN-GW dev GLUETUN-DEV src GLUETUN-IP table TABLE ip route add WG-NET dev WG-DEV src WG-IP

First one causes all packets coming from wireguard network to use the routing table TABLE, second one sets the default gateway in that table to gluetun, third one sets up routing back to the wireguard network (this one probably already exists)

Where

TABLE: A routing table name, mapped in /etc/iproute2/rt_tables

GLUETUN-GW: The gateway IP of the gluetun tunnel, e.g. 10.128.1.1

GLUETUN-DEV: The gluetun tunnel netdev, e.g. tap0

GLUETUN-IP: The gluetun tunnel device's IP (your machine), e.g. 10.128.1.2

WG-NET: your wireguard network, e.g. 10.100.0.0/24

WG-DEV: The wireguard network device, e.g. wg0

WG-IP: The wireguard network device's IP (your machine), e.g. 10.100.0.1

Untested, so not sure if it works.
- Would this be put in the post up part of wg0?
having the very same idea and issue u described, any idea on how to solv it? my post here https://www.reddit.com/r/WireGuard/comments/1abnvyj/need_help_with_idea_wireguard_and_gluetun/

8 comments