diff --git a/app/controllers/games_controller.rb b/app/controllers/games_controller.rb
index ec69f3963..10b690d0c 100644
--- a/app/controllers/games_controller.rb
+++ b/app/controllers/games_controller.rb
@@ -69,7 +69,10 @@ class GamesController < ApplicationController
         if res && res['code'].to_i != 0
           raise("实训云平台繁忙（繁忙等级：99）")
         end
-        @vnc_url = "http://#{service_host}:#{res['port']}/vnc_lite.html?password=headless"
+        # 无域名版本
+        #@vnc_url = "http://#{service_host}:#{res['port']}/vnc_lite.html?password=headless"
+        # 有域名版本
+        @vnc_url = "http://#{res['port']}.#{service_host}/vnc_lite.html?password=headless"
       rescue Exception => e
         Rails.logger.error(e.message)
       end