fix: seems like we need to keep the two network addresses for the skynet server

machines/skynet.nix

@@ -15,6 +15,7 @@ let
   name      = "skynet";
   # DMZ that ITD provided
   ip_pub    = "193.1.96.165";
+  ip_int    = "193.1.99.79";
   hostname  = "${name}.skynet.ie";
 
 in {
@@ -55,13 +56,35 @@ in {
     # needed to use the dmz first
     defaultGateway = lib.mkForce "193.1.96.161";
 
-    interfaces.eth1.ipv4.addresses = [
+
+    interfaces = {
+      # need it for dns validation for letsencrypt
+      eth0.ipv4 = {
+        addresses = [
+          {
+            address = ip_int;
+            prefixLength = 26;
+          }
+        ];
+        routes = [
+          {
+            address = "193.1.99.64";
+            prefixLength = 26;
+            via = "193.1.99.65";
+          }
+        ];
+      };
+
+
+      # primary ip for logging in
+      eth1.ipv4.addresses = [
         {
           address = ip_pub;
           prefixLength = 28;
         }
       ];
     };
+  };
 
 #  services.skynet = {
 #    host = {