diff --git a/systems/x86_64-linux/sgx/default.nix b/systems/x86_64-linux/sgx/default.nix
index 579bdfe..6357a5d 100644
--- a/systems/x86_64-linux/sgx/default.nix
+++ b/systems/x86_64-linux/sgx/default.nix
@@ -93,13 +93,12 @@ in
       aio read size = 16384
       aio write size = 16384
       workgroup = WORKGROUP
-      server string = smbnix
-      netbios name = smbnix
+      server string = sgx
+      netbios name = sgx
       security = user
       #max protocol = smb2
-      # note: localhost is the ipv6 localhost ::1
-      hosts allow = 192.168.178. 127.0.0.1 localhost
-      hosts deny = 0.0.0.0/0
+      hosts allow = 192.168.178. 127.0.0.1 localhost 2003::/16 ::1
+      hosts deny = ALL
       guest account = nobody
       map to guest = bad user
     '';
@@ -237,7 +236,7 @@ in
     };
   };
 
-  #networking.firewall.allowedTCPPorts = [ 80 443 1883 548 ];
+  networking.firewall.allowedTCPPorts = [ 548 ];
   networking.firewall.allowPing = true;
   services.samba.openFirewall = true;