Configuring a ProxyVM VPN Gateway

[apparatus]

The guide is for Qubes OS 4.1 so it’s using iptables firewall.
In Qubes OS 4.2 the iptables firewall was replaced with nftables firewall.
To use this guide in Qubes OS 4.2 you need to replace the firewall rules from iptables to nftables in /rw/config/vpn/qubes-vpn-handler.sh and /rw/config/qubes-firewall-user-script files.
You can use the files from this post:

Configuring a ProxyVM VPN Gateway

No problem, below is a copy/paste from my vpn qube.

`/rw/config/vpn/qubes-vpn-handler.sh`

#!/bin/bash set -e export PATH="$PATH:/usr/sbin:/sbin" case "$1" in up) # To override DHCP DNS, assign DNS addresses to 'vpn_dns' env variable before calling this script; # Format is 'X.X.X.X Y.Y.Y.Y [...]' if [[ -z "$vpn_dns" ]] ; then # Parses DHCP foreign_option_* vars to automatically set DNS address translation: for optionname in ${!foreign_opti…