From 85e1ef440023b8c0635ba7e0abba7e66e24f4f58 Mon Sep 17 00:00:00 2001
From: albert <albert@sysctl.io>
Date: Sun, 7 Jul 2024 11:15:42 +0900
Subject: [PATCH] Updates

---
 nixos/hosts/frankfurt-linode-01/firewall.nix  | 92 +++++++++++++++++++
 nixos/hosts/frankfurt-linode-01/wireguard.nix |  1 -
 nixos/hosts/osaka-linode-01/default.nix       |  5 +-
 nixos/hosts/osaka-linode-01/wireguard.nix     |  1 -
 4 files changed, 95 insertions(+), 4 deletions(-)

diff --git a/nixos/hosts/frankfurt-linode-01/firewall.nix b/nixos/hosts/frankfurt-linode-01/firewall.nix
index 6152094c..f9977caa 100644
--- a/nixos/hosts/frankfurt-linode-01/firewall.nix
+++ b/nixos/hosts/frankfurt-linode-01/firewall.nix
@@ -3,11 +3,103 @@
     firewall = {
       enable = true;
       allowedTCPPorts = [
+        80    # HTTP
+        443   # HTTPS
+        42420 # Vintage Story
+        25565 # Minecraft
         1443  # Headscale DERP (tcp)
+        25    # Mailserver
+        143   # Mailserver
+        465   # Mailserver
+        587   # Mailserver
+        993   # Mailserver
+        4190  # Mailserver
+        4443  # Jitsi
       ];
       allowedUDPPorts = [
         3478  # Headscale DERP (udp)
+        10000 # Jitsi Meet (udp)
+        15636 # Enshrouded - Game
+        15637 # Enshrouded - Query Port
+      ];
+    };
+
+    nftables = {
+      enable = true;
+      ruleset = ''
+          table ip nat {
+            chain PREROUTING {
+              type nat hook prerouting priority dstnat; policy accept;
+              iifname "enp0s4" udp dport 10000 dnat to 10.100.0.2:10000;
+              iifname "enp0s4" udp dport 15636 dnat to 10.100.1.2:15636;
+              iifname "enp0s4" udp dport 15637 dnat to 10.100.1.2:15637;
+            }
+          }
+      '';
+    };
+
+    nat = {
+      enable = true;
+      internalInterfaces = [ "enp0s4" ];
+      externalInterface = "wireguard0";
+      forwardPorts =  [
+        { sourcePort = 10000; proto = "udp"; destination = "10.100.0.2:10000"; }
+        { sourcePort = 15636; proto = "udp"; destination = "10.100.1.2:15636"; }
+        { sourcePort = 15637; proto = "udp"; destination = "10.100.1.2:15637"; }
       ];
     };
   };
+
+  services.haproxy = {
+    enable = true;
+    config = ''
+      defaults
+        timeout connect 10s
+        timeout client 30s
+        timeout server 30s 
+        maxconn 3000 
+        log global 
+
+      frontend http
+        mode http
+        bind :80
+        default_backend backend_http
+      
+      frontend tcp
+        mode tcp
+        bind :42420
+        bind :25565
+        bind :4443
+        bind :443
+        default_backend backend_tcp
+
+      frontend mail 
+        mode tcp
+        bind :25
+        bind :143
+        bind :465
+        bind :587
+        bind :993
+        bind :4190
+        default_backend backend_mail 
+
+      backend backend_mail
+        mode tcp 
+        option forwarded
+        option forwardfor if-none 
+        server mailserver-wg 10.100.1.3
+
+      backend backend_tcp
+        mode tcp
+        option forwarded
+        option forwardfor if-none
+        server framework-server 10.100.0.2 
+      
+      backend backend_http
+        mode http
+        option forwarded
+        option forwardfor if-none
+        server framework-server 10.100.0.2 
+    '';
+  };
 }
diff --git a/nixos/hosts/frankfurt-linode-01/wireguard.nix b/nixos/hosts/frankfurt-linode-01/wireguard.nix
index 0c784daa..92d4e30d 100644
--- a/nixos/hosts/frankfurt-linode-01/wireguard.nix
+++ b/nixos/hosts/frankfurt-linode-01/wireguard.nix
@@ -29,7 +29,6 @@
 
   # Wireguard Forwarder
   boot.kernel.sysctl = { 
-    "net.ipv4.ip_forward" = true; 
     "net.ipv4.conf.all.forwarding" = 1;
     "net.ipv4.conf.default.forwarding" = 1;
   };
diff --git a/nixos/hosts/osaka-linode-01/default.nix b/nixos/hosts/osaka-linode-01/default.nix
index 3a71e4e4..9de1aa70 100644
--- a/nixos/hosts/osaka-linode-01/default.nix
+++ b/nixos/hosts/osaka-linode-01/default.nix
@@ -1,4 +1,4 @@
-{ lib, modulesPath, ... }: {
+{ lib, modulesPath, hostname, ... }: {
   imports = [ 
     (modulesPath + "/profiles/qemu-guest.nix")
     ../../common/services/tailscale-autoconnect.nix
@@ -37,7 +37,8 @@
 
   networking.useDHCP = lib.mkDefault true;
   time.timeZone = "Asia/Tokyo";
-  networking.hostName = "osaka-linode-01";
+  networking.hostName = hostname;
 
   services.tailscale.extraUpFlags = [ "--advertise-exit-node" ];
+  boot.kernel.sysctl = { "net.ipv4.ip_forward" = true; };
 }
diff --git a/nixos/hosts/osaka-linode-01/wireguard.nix b/nixos/hosts/osaka-linode-01/wireguard.nix
index 0c784daa..92d4e30d 100644
--- a/nixos/hosts/osaka-linode-01/wireguard.nix
+++ b/nixos/hosts/osaka-linode-01/wireguard.nix
@@ -29,7 +29,6 @@
 
   # Wireguard Forwarder
   boot.kernel.sysctl = { 
-    "net.ipv4.ip_forward" = true; 
     "net.ipv4.conf.all.forwarding" = 1;
     "net.ipv4.conf.default.forwarding" = 1;
   };