<p><strong>Prerequisites</strong></p> <p>A security group is created.</p> <p><strong>Procedure</strong></p> <p>1.&nbsp;&nbsp;&nbsp;Log in to the <a href="https://www.pinganyun.com/console/ecs/overview" target="_blank">ECS Console</a>.</p> <p>2.&nbsp;&nbsp;&nbsp;Select <strong>Network &gt; Security Group</strong> in the left navigation tree to enter the <strong>Security Group</strong> page.</p> <p>3.&nbsp;&nbsp;&nbsp;Select the region of the security group.</p> <p>4.&nbsp;&nbsp;&nbsp;Click the name of the target security group to enter the <strong>Security Group Information</strong> page.</p> <p>5.&nbsp; &nbsp;Click <strong>Create</strong> in the upper-right corner of the <strong>Security Group Rule</strong> tab.</p> <p>6.&nbsp;&nbsp;&nbsp;In the <strong>Create Security</strong> <strong>Group Rule</strong> dialog box, create a security group rule as described in the following table:</p> <p><img src="https://obs-cn-shanghai.yun.pingan.com/pcp-portal/20212704175030-178dedd0976d.png" style="height:457px; width:830px" /></p> <table border="1" cellpadding="0" cellspacing="0"> <tbody> <tr> <td> <p><strong>Configuration item</strong></p> </td> <td style="vertical-align:top"> <p><strong>Description</strong></p> </td> </tr> <tr> <td> <p><strong>Rules Direction</strong></p> </td> <td style="vertical-align:top"> <p>Select the traffic direction.</p> <p>&bull;&nbsp;&nbsp;&nbsp;&nbsp; <strong>OUT</strong>&mdash;Allows instances bound to the security group to access the authorized IP address.</p> <p>&bull;&nbsp;&nbsp;&nbsp;&nbsp; <strong>IN</strong>&mdash;Allows the authorized IP address to access instances bound to the security group.</p> </td> </tr> <tr> <td> <p><strong>Protocol Type</strong></p> </td> <td style="vertical-align:top"> <p>Select network protocol type, TCP, UDP, or ICMP.</p> </td> </tr> <tr> <td> <p><strong>Port Range</strong></p> </td> <td style="vertical-align:top"> <p>If you select TCP or UDP, enter a port range. The port value is in the range of 1 to 65535.</p> </td> </tr> <tr> <td> <p><strong>Authorize IP</strong></p> </td> <td style="vertical-align:top"> <p>Enter the authorized IP address.</p> </td> </tr> <tr> <td> <p><strong>Description</strong></p> </td> <td style="vertical-align:top"> <p>Configure the description of the rule.</p> <p><strong>Note:</strong> The description supports a maximum of 50 characters.</p> </td> </tr> </tbody> </table> <p>7.&nbsp;&nbsp;&nbsp;Click <strong>Confirm</strong>.</p> <p>Message <strong>Operation succeeded</strong> is displayed at the bottom of the page.</p>