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Fix WireGuard nat rules

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This commit is contained in:
fi 2023-09-18 03:38:09 +02:00
parent f67a75b07d
commit e7fe3707ee
Signed by: fi
SSH key fingerprint: SHA256:d+6fQoDPMbSFK95zRVflRKZLRKF4cPSQb7VIxYkhFsA
11 changed files with 269 additions and 61 deletions
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39
config/hosts/lifeline/configuration.nix
View file

@ -1,4 +1,4 @@
{ ... }:
{ pkgs, ... }:
{
boot.loader.grub = {
enable = true;
@ -14,6 +14,43 @@
enable = true;
allowedUDPPorts = [ 51820 ];
};
# mail-2 VPN
wireguard = {
enable = true;
interfaces.wg0 = {
listenPort = 51820;
ips = [
"172.16.50.1/24"
];
peers = [
{
name = "mail-2";
publicKey = "OIBOJlFzzM3P/u1ftVW2HWt8kA6NveB4PaBOIXhCYhM=";
presharedKeyFile = "/secrets/wireguard-lifeline-mail-2-lifeline-psk.secret";
allowedIPs = [ "172.16.50.2/32" ];
}
];
postSetup = ''
${pkgs.iptables}/bin/iptables -A FORWARD -i wg0 -j ACCEPT
${pkgs.iptables}/bin/iptables -t nat -A POSTROUTING -s 172.16.50.0/24 -o ens6 -j MASQUERADE
'';
postShutdown = ''
${pkgs.iptables}/bin/iptables -D FORWARD -i wg0 -j ACCEPT
${pkgs.iptables}/bin/iptables -t nat -D POSTROUTING -s 172.16.50.0/24 -o ens6 -j MASQUERADE
'';
privateKeyFile = "/secrets/wireguard-lifeline-wg0-privatekey.secret";
};
};
nat = {
enable = true;
internalInterfaces = [ "wg0" ];
externalInterface = "ens6";
forwardPorts = [{
destination = "172.16.50.2:25";
proto = "tcp";
sourcePort = 25;
}];
};
};
services.prometheus.exporters.node.enable = false;

8
config/hosts/lifeline/secrets.nix
View file

@ -1,15 +1,15 @@
{ ... }:
{
deployment.keys."wireguard-lifeline-mail-1-lifeline-psk.secret" = {
keyCommand = [ "env" "GNUPGHOME=/home/yuri/.passinfra_gnupg" "PASSWORD_STORE_DIR=/home/yuri/pass/infra" "pass" "wireguard/lifeline-mail-1/psk" ];
deployment.keys."wireguard-lifeline-wg0-privatekey.secret" = {
keyCommand = [ "env" "GNUPGHOME=/home/yuri/.passinfra_gnupg" "PASSWORD_STORE_DIR=/home/yuri/pass/infra" "pass" "wireguard/lifeline-wg0-privatekey" ];
destDir = "/secrets";
user = "root";
group = "root";
permissions = "0640";
uploadAt = "pre-activation";
};
deployment.keys."wireguard-lifeline-mail-1-lifeline-privatekey.secret" = {
keyCommand = [ "env" "GNUPGHOME=/home/yuri/.passinfra_gnupg" "PASSWORD_STORE_DIR=/home/yuri/pass/infra" "pass" "wireguard/lifeline-mail-1/lifeline-privatekey" ];
deployment.keys."wireguard-lifeline-mail-2-lifeline-psk.secret" = {
keyCommand = [ "env" "GNUPGHOME=/home/yuri/.passinfra_gnupg" "PASSWORD_STORE_DIR=/home/yuri/pass/infra" "pass" "wireguard/lifeline-mail-2/psk" ];
destDir = "/secrets";
user = "root";
group = "root";