: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