doc-exports/docs/vpc/umn/SecurityGroup_0006.html
Qin Ying, Fan 662ede2c6b VPC UMN 20240105 version
Reviewed-by: Sarda, Priya <prsarda@noreply.gitea.eco.tsi-dev.otc-service.com>
Co-authored-by: Qin Ying, Fan <fanqinying@huawei.com>
Co-committed-by: Qin Ying, Fan <fanqinying@huawei.com>
2024-04-18 12:13:40 +00:00

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<a name="SecurityGroup_0006"></a><a name="SecurityGroup_0006"></a>
<h1 class="topictitle1">Changing the Security Group of an ECS</h1>
<div id="body1529924417030"><div class="section" id="SecurityGroup_0006__section181956227265"><h4 class="sectiontitle">Scenarios</h4><p id="SecurityGroup_0006__p95671820182813">Change the security group associated with an ECS NIC.</p>
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<div class="section" id="SecurityGroup_0006__section451235718918"><h4 class="sectiontitle">Procedure</h4><ol id="SecurityGroup_0006__en-us_topic_0093492517_ol146871568377"><li id="SecurityGroup_0006__en-us_topic_0093492517_li3490190117228">Log in to the management console.</li><li id="SecurityGroup_0006__en-us_topic_0093492517_li1168746173718">Click <span><img id="SecurityGroup_0006__en-us_topic_0093492517_image268756153719" src="en-us_image_0000001818823030.png"></span> in the upper left corner and select your region and project.</li><li id="SecurityGroup_0006__en-us_topic_0093492517_li206871564372">Click <span><img id="SecurityGroup_0006__image16742151417237" src="en-us_image_0000001865662757.jpg"></span> and choose <span id="SecurityGroup_0006__en-us_topic_0093492517_text418319413327"><strong id="SecurityGroup_0006__b20725205512418">Computing</strong></span> &gt; <strong id="SecurityGroup_0006__b127431014142317">Elastic Cloud Server</strong>.</li><li id="SecurityGroup_0006__en-us_topic_0093492517_li6688267371">In the <span id="SecurityGroup_0006__en-us_topic_0093492517_text45363507231">ECS</span> list, choose <strong id="SecurityGroup_0006__b10639418693">More</strong> &gt; <strong id="SecurityGroup_0006__b1393533220253">Manage Network</strong> &gt; <strong id="SecurityGroup_0006__b950719410105">Change Security Group</strong> in the <strong id="SecurityGroup_0006__b696318441197">Operation</strong> column.<p id="SecurityGroup_0006__en-us_topic_0093492517_p968836143718">The <strong id="SecurityGroup_0006__b154917146275129">Change Security Group</strong> dialog box is displayed.</p>
<div class="fignone" id="SecurityGroup_0006__en-us_topic_0093492517_fig1673733486"><span class="figcap"><b>Figure 1 </b>Changing a security group</span><br><span><img id="SecurityGroup_0006__en-us_topic_0093492517_image96888152276" src="en-us_image_0000001865662753.png"></span></div>
</li><li id="SecurityGroup_0006__en-us_topic_0093492517_li14114175682518">Select the target NIC and security groups.<p id="SecurityGroup_0006__en-us_topic_0093492517_p1615510191262"><a name="SecurityGroup_0006__en-us_topic_0093492517_li14114175682518"></a><a name="en-us_topic_0093492517_li14114175682518"></a>You can select multiple security groups. In such a case, the access rules of all the selected security groups apply to the ECS.</p>
<p id="SecurityGroup_0006__en-us_topic_0093492517_p1669712426182">To create a security group, click <strong id="SecurityGroup_0006__b173764201875129">Create Security Group</strong>.</p>
<div class="note" id="SecurityGroup_0006__en-us_topic_0093492517_note4690867375"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="SecurityGroup_0006__en-us_topic_0093492517_p3691176143719">Using multiple security groups may deteriorate ECS network performance. We recommend that you associate no more than five security groups with each ECS.</p>
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</li><li id="SecurityGroup_0006__en-us_topic_0093492517_li1969136193711">Click <strong id="SecurityGroup_0006__b1557690599">OK</strong>.</li></ol>
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<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="vpc_SecurityGroup_0014.html">Managing Instances Associated with a Security Group</a></div>
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