--- /dev/null
+# This file is part of NIT ( http://www.nitlanguage.org ).
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Services common to the client and server
+module common
+
+import gamnit::network
+
+redef class Sys
+ # Name of this app
+ redef fun handshake_app_name do return "tinks"
+
+ # Default listening port of the server
+ fun default_listening_port: Int do return 18721
+
+ # Port to which clients send discovery requests
+ fun discovery_port: Int do return 18722
+end