add openvpn and dns config for mibex

configuration.nix

@@ -24,7 +24,15 @@
   # Pick only one of the below networking options.
   # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
   networking.networkmanager.enable = true;  # Easiest to use and most distros use this by default.
-
+  networking.networkmanager.plugins = [ pkgs.networkmanager-openvpn ];
+  networking.networkmanager.dns = "dnsmasq";
+
+  environment.etc."NetworkManager/dnsmasq.d/00-cave.conf".text = ''
+  server=/.mibex.ch/172.31.13.27
+  server=/huus/192.168.15.2
+  server=192.168.15.2
+  server=1.1.1.1
+  '';
   # Set your time zone.
   time.timeZone = "Europe/Zurich";
 
@@ -143,9 +151,12 @@
     vscodium
     pciutils
     usbutils
+    openvpn
+    dig
     ronema.packages.x86_64-linux.default
-  ];
+    networkmanager-openvpn
 
+  ];
   # Some programs need SUID wrappers, can be configured further or are
   # started in user sessions.
   # programs.mtr.enable = true;