mirror of
https://github.com/Qubes-Community/Contents.git
synced 2024-12-22 21:59:26 -05:00
f74b31ad0b
Some sites work in sys-wireguard, but did not work in an AppVM connected to sys-wireguard. Examples: https://duckduckgo.com https://atlassian.net The problem is caused by MTU. The solution was proposed on https://github.com/QubesOS/qubes-issues/issues/5264#issuecomment-707683771
142 lines
3.4 KiB
Markdown
142 lines
3.4 KiB
Markdown
# Using WireGuard as VPN in QubesOS
|
|
|
|
Based on https://www.scaleway.com/en/docs/installing-wireguard-vpn-linux/
|
|
|
|
To use this guide you need VPS to use as VPN server.
|
|
|
|
Use Debian 10 on both server and client.
|
|
|
|
## On both server and client
|
|
|
|
In Qubes, do the following steps in TemplateVM (debian-10).
|
|
|
|
If needed, enable buster-backports:
|
|
|
|
```
|
|
$ echo 'deb http://deb.debian.org/debian buster-backports main' | sudo tee /etc/apt/sources.list.d/buster-backports.list
|
|
$ sudo apt-get update
|
|
```
|
|
|
|
If needed, install kernel headers:
|
|
|
|
```
|
|
$ sudo apt-get install linux-headers-amd64
|
|
```
|
|
|
|
Install WireGuard:
|
|
|
|
```
|
|
$ sudo apt-get install wireguard resolvconf
|
|
```
|
|
|
|
Make sure kernel module was installed:
|
|
|
|
```
|
|
$ sudo modprobe wireguard
|
|
$ echo $?
|
|
0
|
|
```
|
|
|
|
In Qubes, shutdown `debian-10` TemplateVM and do the following steps
|
|
in ProxyVM `sys-wireguard` based on `debian-10`. On the server, continue
|
|
in the same terminal.
|
|
|
|
Generating Public and Private Keys
|
|
|
|
```
|
|
# mkdir -p /etc/wireguard/keys
|
|
# cd /etc/wireguard/keys
|
|
# umask 077
|
|
# wg genkey | tee privatekey | wg pubkey > publickey
|
|
```
|
|
|
|
## On server
|
|
|
|
Create the file `/etc/wireguard/wg0.conf` with the following content:
|
|
|
|
```
|
|
[Interface]
|
|
PrivateKey = <private key of the server>
|
|
Address = 192.168.66.1/32
|
|
ListenPort = <random port for server>
|
|
PostUp = sysctl -w net.ipv4.ip_forward=1; iptables -A FORWARD -i %i -o %i -j DROP; iptables -A FORWARD -i %i -j ACCEPT; iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
|
|
PostDown = iptables -D FORWARD -i %i -o %i -j DROP; iptables -D FORWARD -i %i -j ACCEPT; iptables -t nat -D POSTROUTING -o eth0 -j MASQUERADE
|
|
|
|
[Peer]
|
|
PublicKey = <public key of the client>
|
|
AllowedIPs = 192.168.66.2/32
|
|
|
|
<add more clients if needed>
|
|
```
|
|
|
|
Run:
|
|
|
|
```
|
|
$ sudo wg-quick up wg0
|
|
```
|
|
|
|
You can also enable the start of WireGuard on server at boot time with the following command:
|
|
|
|
```
|
|
$ sudo systemctl enable wg-quick@wg0.service
|
|
```
|
|
|
|
## On client
|
|
|
|
Create the file `/home/user/wg0.conf` with the following content:
|
|
|
|
```
|
|
[Interface]
|
|
PrivateKey = <private key of the client>
|
|
Address = 192.168.66.2/32
|
|
DNS = 1.1.1.1
|
|
PostUp = iptables -t nat -I PREROUTING 1 -p udp -m udp --dport 53 -j DNAT --to-destination 1.1.1.1; iptables -t nat -I POSTROUTING 3 -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
|
|
|
|
[Peer]
|
|
PublicKey = <public key of the client>
|
|
Endpoint = <public ip of server>:<public port of server>
|
|
AllowedIPs = 0.0.0.0/0
|
|
PersistentKeepalive = 25
|
|
```
|
|
|
|
Run:
|
|
|
|
```
|
|
$ sudo wg-quick up /home/user/wg0.conf
|
|
```
|
|
|
|
It should work at this point.
|
|
|
|
Add the following to `/rw/config/rc.local`:
|
|
|
|
```
|
|
wg-quick up /home/user/wg0.conf
|
|
```
|
|
|
|
Then `chmod +x /rw/config/rc.local`
|
|
|
|
Then go to Qubes firewall settings and limit outgoing connections to UDP `<public ip of server>:<public port of server>`.
|
|
Then do to dom0 console and use `qvm-firewall` command to remove unneeded exceptions for ICMP and DNS:
|
|
|
|
```
|
|
$ qvm-firewall sys-wireguard
|
|
... 4 rules, including unwanted DNS and ICMP rules ...
|
|
$ qvm-firewall sys-wireguard del --rule-no 1
|
|
$ qvm-firewall sys-wireguard del --rule-no 1
|
|
$ qvm-firewall sys-wireguard
|
|
... 2 rules ...
|
|
```
|
|
|
|
Make sure it now has only the server rule and then DROP.
|
|
|
|
## On Android/iOS
|
|
|
|
You can use wireguard on Android or iOS devices.
|
|
|
|
Android: https://play.google.com/store/apps/details?id=com.wireguard.android&hl=fr
|
|
|
|
iOS: https://apps.apple.com/us/app/wireguard/id1441195209?ls=1
|
|
|
|
In the app, select `Create from scratch` and configure it the same way you did
|
|
in sys-wireguard. The form has the same fields as the file.
|