Change port

src/Jackett/Program.cs

@@ -120,6 +120,19 @@ namespace Jackett
             Console.WriteLine("Server thread exit");
         }
 
+        public static void RestartServer()
+        {
+
+            ServerInstance.Stop();
+            ServerInstance = null;
+            var serverTask = Task.Run(async () =>
+            {
+                ServerInstance = new Server();
+                await ServerInstance.Start();
+            });
+            Task.WaitAll(serverTask);
+        }
+
         static void MigrateSettingsDirectory()
         {
             try