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set up the mullvad VPN for wheatley (untested)

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This commit is contained in:
Lillian Violet 2025-08-23 12:23:12 +02:00
parent e6c6bd012f
commit 374bf4d63a
1 changed files with 41 additions and 8 deletions
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49
nixos/hosts/wheatley/configuration.nix
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@ -220,6 +220,35 @@
# wg public key for host: A02sO7uLdgflhPIRd0cbJONIaPP4z8HTxDkmX4NegFg=
# TODO: generate this dynamically based on other hosts
mullvad = {
address = ["10.70.93.226/32" "fc00:bbbb:bbbb:bb01::7:5de1/128"];
listenPort = 51820;
privateKeyFile = lib.mkForce config.sops.secrets."wg-private-key".path;
dns = ["100.64.0.7"];
extraOptions = {
FwMark = 51820;
};
postUp = ''
${pkgs.iproute2}/bin/ip rule add from 192.168.2.43 table main
${pkgs.iptables}/bin/iptables -t mangle -A PREROUTING -i end0 -j CONNMARK --set-mark 51820
${pkgs.iptables}/bin/iptables -t mangle -A PREROUTING -m connmark --mark 51820 -j MARK --set-mark 51820
'';
preDown = ''
${pkgs.iproute2}/bin/ip rule del from 192.168.2.43 table main
${pkgs.iptables}/bin/iptables -t mangle -D PREROUTING -i end0 -j CONNMARK --set-mark 51820
${pkgs.iptables}/bin/iptables -t mangle -D PREROUTING -m connmark --mark 51820 -j MARK --set-mark 51820
'';
peers = [
{
publicKey = "UrQiI9ISdPPzd4ARw1NHOPKKvKvxUhjwRjaI0JpJFgM=";
allowedIPs = ["0.0.0.0/0" "::0/0"];
endpoint = "193.32.249.66:51820";
}
];
};
wg1 = {
# Determines the IP address and subnet of the server's end of the tunnel interface.
address = ["10.0.0.1/24" "fdc9:281f:04d7:9ee9::1/64"];
@ -229,22 +258,26 @@
# This allows the wireguard server to route your traffic to the internet and hence be like a VPN
postUp = ''
${pkgs.iptables}/bin/iptables -A FORWARD -i wg0 -j ACCEPT
${pkgs.iptables}/bin/iptables -t nat -A POSTROUTING -s 10.0.0.1/24 -o eth0 -j MASQUERADE
${pkgs.iptables}/bin/ip6tables -A FORWARD -i wg0 -j ACCEPT
${pkgs.iptables}/bin/ip6tables -t nat -A POSTROUTING -s fdc9:281f:04d7:9ee9::1/64 -o eth0 -j MASQUERADE
${pkgs.iptables}/bin/iptables -A FORWARD -i wg1 -j ACCEPT
${pkgs.iptables}/bin/iptables -t nat -A POSTROUTING -s mullvad -o end0 -j MASQUERADE
${pkgs.iptables}/bin/ip6tables -A FORWARD -i wg1 -j ACCEPT
${pkgs.iptables}/bin/ip6tables -t nat -A POSTROUTING -s mullvad -o end0 -j MASQUERADE
'';
# Undo the above
preDown = ''
${pkgs.iptables}/bin/iptables -D FORWARD -i wg0 -j ACCEPT
${pkgs.iptables}/bin/iptables -t nat -D POSTROUTING -s 10.0.0.1/24 -o eth0 -j MASQUERADE
${pkgs.iptables}/bin/ip6tables -D FORWARD -i wg0 -j ACCEPT
${pkgs.iptables}/bin/ip6tables -t nat -D POSTROUTING -s fdc9:281f:04d7:9ee9::1/64 -o eth0 -j MASQUERADE
${pkgs.iptables}/bin/iptables -D FORWARD -i wg1 -j ACCEPT
${pkgs.iptables}/bin/iptables -t nat -D POSTROUTING -s mullvad -o end0 -j MASQUERADE
${pkgs.iptables}/bin/ip6tables -D FORWARD -i wg1 -j ACCEPT
${pkgs.iptables}/bin/ip6tables -t nat -D POSTROUTING -s mullvad -o end0 -j MASQUERADE
'';
privateKeyFile = lib.mkForce config.sops.secrets."wg-private-key".path;
extraOptions = {
FwMark = 51820;
};
peers = [
{
#GLaDOS public key