:original_name: en-us_topic_0090713826.html .. _en-us_topic_0090713826: Modifying an Instance's Security Group ====================================== Scenario -------- On the DCS console, after creating a DCS instance, you can modify the security group of the DCS instance on the instance's \ **Summary**\ page. Prerequisites ------------- At least one DCS instance has been created. Procedure --------- #. Log in to the management console. #. Click |image1| in the upper left corner of the management console and select a region. #. Click **Service List**, and choose **Database** > **Distributed Cache Service** to launch the DCS console. #. In the navigation pane, choose **Cache Manager**. A list of DCS instances is displayed on the \ **Cache Manager**\ page. #. Click the name of the DCS instance for which you want to modify the security group. #. On the **Basic Information** page, click the |image2| icon next to the **Security Group** parameter. #. Select a new security group from the drop-down list. Click |image3| to save the modification or |image4| to discard the modification. The modification will take effect immediately, that is, the new security group will appear on the **Basic Information** tab page immediately. .. |image1| image:: /_static/images/en-us_image_0000001287445448.png .. |image2| image:: /_static/images/en-us_image_0000001340285313.png .. |image3| image:: /_static/images/en-us_image_0000001287765328.jpg .. |image4| image:: /_static/images/en-us_image_0000001340205085.jpg