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ELB_UMN_0422_VERSION

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Reviewed-by: Hajba, László Antal <laszlo-antal.hajba@t-systems.com>
Co-authored-by: zhoumeng35 <zhoumeng35@huawei.com>
Co-committed-by: zhoumeng35 <zhoumeng35@huawei.com>
This commit is contained in:
zhoumeng35
2025-05-16 12:29:40 +00:00
committed by zuul
parent f181b33195
commit af09635640
12 changed files with 537 additions and 466 deletions
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</th>
</tr>
</thead>
<tbody><tr id="elb_billing_0003__en-us_topic_0000001819164006_row23228914394"><td class="cellrowborder" rowspan="2" valign="top" width="17.32%" headers="mcps1.3.1.6.2.5.1.1 "><p id="elb_billing_0003__en-us_topic_0000001819164006_p1832218919395">Pay-per-use</p>
<p id="elb_billing_0003__en-us_topic_0000001819164006_p232220913396"></p>
<tbody><tr id="elb_billing_0003__en-us_topic_0000001819164006_row23228914394"><td class="cellrowborder" valign="top" width="17.32%" headers="mcps1.3.1.6.2.5.1.1 "><p id="elb_billing_0003__en-us_topic_0000001819164006_p1832218919395">Pay-per-use</p>
</td>
<td class="cellrowborder" valign="top" width="30.64%" headers="mcps1.3.1.6.2.5.1.2 "><p id="elb_billing_0003__en-us_topic_0000001819164006_p532269183920">Elastic</p>
</td>
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<td class="cellrowborder" valign="top" width="27.089999999999996%" headers="mcps1.3.1.6.2.5.1.4 "><p id="elb_billing_0003__en-us_topic_0000001819164006_p13322592396">√</p>
</td>
</tr>
<tr id="elb_billing_0003__en-us_topic_0000001819164006_row103221491398"><td class="cellrowborder" valign="top" headers="mcps1.3.1.6.2.5.1.1 "><p id="elb_billing_0003__en-us_topic_0000001819164006_p632218983914">Fixed</p>
<tr id="elb_billing_0003__en-us_topic_0000001819164006_row103221491398"><td class="cellrowborder" valign="top" width="17.32%" headers="mcps1.3.1.6.2.5.1.1 "><p id="elb_billing_0003__p322875572614">Pay-per-use</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.6.2.5.1.2 "><p id="elb_billing_0003__en-us_topic_0000001819164006_p132269103911">√</p>
<td class="cellrowborder" valign="top" width="30.64%" headers="mcps1.3.1.6.2.5.1.2 "><p id="elb_billing_0003__en-us_topic_0000001819164006_p632218983914">Fixed</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.6.2.5.1.3 "><p id="elb_billing_0003__en-us_topic_0000001819164006_p73221596397">×</p>
<td class="cellrowborder" valign="top" width="24.95%" headers="mcps1.3.1.6.2.5.1.3 "><p id="elb_billing_0003__en-us_topic_0000001819164006_p132269103911">√</p>
</td>
<td class="cellrowborder" valign="top" width="27.089999999999996%" headers="mcps1.3.1.6.2.5.1.4 "><p id="elb_billing_0003__en-us_topic_0000001819164006_p73221596397">×</p>
</td>
</tr>
</tbody>
</table>
</div>
<div class="note" id="elb_billing_0003__en-us_topic_0000001819164006_note55144484399"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="elb_billing_0003__en-us_topic_0000001819164006_ul751484893913"><li id="elb_billing_0003__en-us_topic_0000001819164006_li2514448163920">√ indicates that the billing item is involved. × indicates that the billing item is not involved.</li><li id="elb_billing_0003__en-us_topic_0000001819164006_li1151474816396">If you bind an EIP to a load balancer, you will also be charged for the EIP and the bandwidth used by the EIP.</li></ul>
<div class="note" id="elb_billing_0003__en-us_topic_0000001819164006_note55144484399"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="elb_billing_0003__en-us_topic_0000001819164006_ul751484893913"><li id="elb_billing_0003__en-us_topic_0000001819164006_li2514448163920">Y indicates that the billing item is involved. × indicates that the billing item is not involved.</li><li id="elb_billing_0003__en-us_topic_0000001819164006_li1151474816396">If you bind an EIP to a load balancer, you will also be charged for the EIP and the bandwidth used by the EIP.</li></ul>
</div></div>
</div>
<div class="section" id="elb_billing_0003__en-us_topic_0000001819164006_en-us_topic_0000001504522410_section1384816209374"><h4 class="sectiontitle">LCU Pricing</h4><p id="elb_billing_0003__en-us_topic_0000001819164006_en-us_topic_0000001504522410_p719353817218">An LCU measures the dimensions on which a dedicated load balancer routes the traffic. See LCU price in <a href="#elb_billing_0003__en-us_topic_0000001819164006_en-us_topic_0000001504522410_table54298422029">Table 3</a>.</p>
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<div class="tablenoborder"><a name="elb_billing_0003__en-us_topic_0000001819164006_en-us_topic_0000001504522410_table54298422029"></a><a name="en-us_topic_0000001819164006_en-us_topic_0000001504522410_table54298422029"></a><table cellpadding="4" cellspacing="0" summary="" id="elb_billing_0003__en-us_topic_0000001819164006_en-us_topic_0000001504522410_table54298422029" frame="border" border="1" rules="all"><caption><b>Table 3 </b>LCU pricing</caption><thead align="left"><tr id="elb_billing_0003__en-us_topic_0000001819164006_en-us_topic_0000001504522410_row742918428211"><th align="left" class="cellrowborder" valign="top" width="18.67%" id="mcps1.3.2.4.2.5.1.1"><p id="elb_billing_0003__en-us_topic_0000001819164006_en-us_topic_0000001504522410_p742944217216">Billing Mode</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="20.01%" id="mcps1.3.2.4.2.5.1.2"><p id="elb_billing_0003__en-us_topic_0000001819164006_en-us_topic_0000001504522410_p164299421727">Specifications</p>
<th align="left" class="cellrowborder" valign="top" width="20.01%" id="mcps1.3.2.4.2.5.1.2"><p id="elb_billing_0003__en-us_topic_0000001819164006_en-us_topic_0000001504522410_p164299421727">Specification Type</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="32.379999999999995%" id="mcps1.3.2.4.2.5.1.3"><p id="elb_billing_0003__en-us_topic_0000001819164006_en-us_topic_0000001504522410_p04295421426">Application Scenario</p>
</th>

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<a name="elb_ug_fz_0005"></a><a name="elb_ug_fz_0005"></a>
<h1 class="topictitle1">Configuring Deletion Protection for Load Balancers</h1>
<div id="body8662426"><div class="section" id="elb_ug_fz_0005__en-us_topic_0000001124473719_section1063251192613"><h4 class="sectiontitle">Scenarios</h4><p id="elb_ug_fz_0005__en-us_topic_0000001124473719_p1071917299262">You can enable deletion protection for load balancers to prevent them from being deleted by accident.</p>
</div>
<div class="section" id="elb_ug_fz_0005__en-us_topic_0000001124473719_section199829311277"><h4 class="sectiontitle">Procedure</h4><ol id="elb_ug_fz_0005__en-us_topic_0000001124473719_ol7973192482819"><li id="elb_ug_fz_0005__en-us_topic_0000001124473719_li677391520332">Log in to the management console.</li><li id="elb_ug_fz_0005__en-us_topic_0000001124473719_li675519100420">In the upper left corner of the page, click <span><img id="elb_ug_fz_0005__image199311591368" src="en-us_image_0000001747739624.png"></span> and select the desired region and project.</li><li id="elb_ug_fz_0005__li83736197297">Click <span><img id="elb_ug_fz_0005__image8482041377" src="en-us_image_0000001794660485.png"></span> in the upper left corner to display <strong id="elb_ug_fz_0005__b1848212413718">Service List</strong> and choose <strong id="elb_ug_fz_0005__b5482546711">Network</strong> &gt; <strong id="elb_ug_fz_0005__b194821641878">Elastic Load Balancing</strong>.</li><li id="elb_ug_fz_0005__en-us_topic_0000001124473719_li786163214298">Locate the load balancer and click its name.</li><li id="elb_ug_fz_0005__en-us_topic_0000001124473719_li662115566309">In the <strong id="elb_ug_fz_0005__en-us_topic_0000001124473719_b8917204725112">Summary</strong> tab, enable <strong id="elb_ug_fz_0005__en-us_topic_0000001124473719_b880645835115">Deletion Protection</strong>.</li></ol>
<div class="note" id="elb_ug_fz_0005__en-us_topic_0000001124473719_note8738203063713"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="elb_ug_fz_0005__en-us_topic_0000001124473719_p2738143013716">Disable deletion protection before you delete a load balancer.</p>
</div></div>
</div>
</div>
<div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="en-us_elb_03_0001.html">Load Balancer</a></div>
</div>
</div>

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<a name="elb_ug_fz_0007"></a><a name="elb_ug_fz_0007"></a>
<h1 class="topictitle1">Configuring Modification Protection or Deletion Protection for a Load Balancer</h1>
<div id="body8662426"><p id="elb_ug_fz_0007__en-us_topic_0000001910425601_p5228203014816">You can enable modification protection or deletion protection for load balancers to prevent them from being modified or deleted by accident.</p>
<ul id="elb_ug_fz_0007__en-us_topic_0000001910425601_ul157614135410"><li id="elb_ug_fz_0007__en-us_topic_0000001910425601_li1457654116546">Deletion protection: prevents your load balancers from being deleted by accident. Disable <strong id="elb_ug_fz_0007__b2995719949">Deletion Protection</strong> If you want to delete a load balancer.</li><li id="elb_ug_fz_0007__en-us_topic_0000001910425601_li48291972413">Modification protection: prevents your load balancers from being modified by accident. Disable <strong id="elb_ug_fz_0007__b10946173019412">Modification Protection</strong> if you want to modify or delete a load balancer.</li></ul>
<div class="section" id="elb_ug_fz_0007__en-us_topic_0000001910425601_section2036320242512"><a name="elb_ug_fz_0007__en-us_topic_0000001910425601_section2036320242512"></a><a name="en-us_topic_0000001910425601_section2036320242512"></a><h4 class="sectiontitle">Enabling or Disabling Deletion Protection</h4><ol id="elb_ug_fz_0007__en-us_topic_0000001910425601_ol03636232518"><li id="elb_ug_fz_0007__en-us_topic_0000001910425601_li436419212519">Log in to the management console.</li><li id="elb_ug_fz_0007__en-us_topic_0000001910425601_li123641727250">Click <span><img id="elb_ug_fz_0007__en-us_topic_0000001934844634_en-us_topic_0240829509_image177714713415" src="en-us_image_0000001961843941.png"></span> in the upper left corner of the console and select a desired region and project.</li><li id="elb_ug_fz_0007__en-us_topic_0000001910425601_li11364172162516">Click <span><img id="elb_ug_fz_0007__en-us_topic_0000001934844634_image15397174411119" src="en-us_image_0000001934685298.png"></span> in the upper left corner to display <strong id="elb_ug_fz_0007__en-us_topic_0000001934844634_b639724418113">Service List</strong> and choose <strong id="elb_ug_fz_0007__en-us_topic_0000001934844634_b839719442117">Network</strong> &gt; <strong id="elb_ug_fz_0007__en-us_topic_0000001934844634_b6397154491120">Elastic Load Balancing</strong>.</li><li id="elb_ug_fz_0007__en-us_topic_0000001910425601_li18364102132516">On the displayed page, locate the load balancer and click its name.</li><li id="elb_ug_fz_0007__en-us_topic_0000001910425601_li20364172132516">Switch to the <strong id="elb_ug_fz_0007__b45801109518">Summary</strong> tab of the load balancer and enable or disable <strong id="elb_ug_fz_0007__b358011018516">Deletion Protection</strong>.<div class="notice" id="elb_ug_fz_0007__en-us_topic_0000001910425601_note167581926124114"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><p id="elb_ug_fz_0007__en-us_topic_0000001910425601_p775862604115">If your load balancer is managed by CCE, deleting the load balancer will affect the running of the CCE cluster.</p>
</div></div>
</li><li id="elb_ug_fz_0007__en-us_topic_0000001910425601_li9531647142318">After deletion protection is enabled, the load balancer cannot be deleted.</li></ol>
</div>
<div class="section" id="elb_ug_fz_0007__en-us_topic_0000001910425601_section395152674212"><a name="elb_ug_fz_0007__en-us_topic_0000001910425601_section395152674212"></a><a name="en-us_topic_0000001910425601_section395152674212"></a><h4 class="sectiontitle">Enabling or Disabling Modification Protection</h4><p id="elb_ug_fz_0007__p272221914210">After modification protection is enabled for a load balancer, you cannot modify or delete the load balancer. But you can perform operations on its listeners, forwarding policies, backend server groups, access control, and access logs.</p>
<p id="elb_ug_fz_0007__p19511015164212">After modification protection is enabled, the following operations are not allowed: changing the load balancer name, description, backend subnet, or IP address; enabling IP as a backend; binding or unbinding an EIP to or from the load balancer, configuring deletion protection, or changing specifications.</p>
<ol id="elb_ug_fz_0007__en-us_topic_0000001910425601_en-us_topic_0000001124473719_ol7973192482819"><li id="elb_ug_fz_0007__en-us_topic_0000001910425601_en-us_topic_0000001124473719_li677391520332">Log in to the management console.</li><li id="elb_ug_fz_0007__en-us_topic_0000001910425601_en-us_topic_0000001124473719_li675519100420">Click <span><img id="elb_ug_fz_0007__en-us_topic_0000001934844634_en-us_topic_0240829509_image177714713415_1" src="en-us_image_0000001961843941.png"></span> in the upper left corner of the console and select a desired region and project.</li><li id="elb_ug_fz_0007__en-us_topic_0000001910425601_en-us_topic_0000001124473719_li1444815951216">Click <span><img id="elb_ug_fz_0007__en-us_topic_0000001934844634_image15397174411119_1" src="en-us_image_0000001934685298.png"></span> in the upper left corner to display <strong id="elb_ug_fz_0007__en-us_topic_0000001934844634_b639724418113_1">Service List</strong> and choose <strong id="elb_ug_fz_0007__en-us_topic_0000001934844634_b839719442117_1">Network</strong> &gt; <strong id="elb_ug_fz_0007__en-us_topic_0000001934844634_b6397154491120_1">Elastic Load Balancing</strong>.</li><li id="elb_ug_fz_0007__en-us_topic_0000001910425601_en-us_topic_0000001124473719_li786163214298">On the displayed page, locate the load balancer and click its name.</li><li id="elb_ug_fz_0007__en-us_topic_0000001910425601_en-us_topic_0000001124473719_li662115566309">Switch to the <strong id="elb_ug_fz_0007__b215563617618">Summary</strong> tab and click <strong id="elb_ug_fz_0007__b1515519361168">Configure</strong> next to <strong id="elb_ug_fz_0007__b515519367619">Modification Protection</strong>.</li><li id="elb_ug_fz_0007__en-us_topic_0000001910425601_li183894163240">In the <strong id="elb_ug_fz_0007__b59751461667">Configure Modification Protection</strong> dialog box, enable or disable <strong id="elb_ug_fz_0007__b15975164613613">Modification Protection</strong>.<p id="elb_ug_fz_0007__en-us_topic_0000001910425601_p423851892411">Fill in the reason if needed.</p>
<div class="notice" id="elb_ug_fz_0007__en-us_topic_0000001910425601_note21591683218"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><p id="elb_ug_fz_0007__en-us_topic_0000001910425601_p7838310133214">If your load balancer is managed by CCE, modifying the load balancer will affect the running of the CCE cluster.</p>
</div></div>
</li><li id="elb_ug_fz_0007__en-us_topic_0000001910425601_li8989023329">Click <strong id="elb_ug_fz_0007__b79120316714">OK</strong>.</li></ol>
</div>
</div>
<div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="en-us_elb_03_0001.html">Load Balancer</a></div>
</div>
</div>

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</li>
<li class="ulchildlink"><strong><a href="elb_ug_hdg_0004.html">Creating a Backend Server Group (Shared Load Balancers)</a></strong><br>
</li>
<li class="ulchildlink"><strong><a href="elb_ug_hdg_0009.html">Enabling Modification Protection</a></strong><br>
</li>
<li class="ulchildlink"><strong><a href="elb_ug_hd_0004.html">Enabling Removal Protection for a Backend Server Group</a></strong><br>
</li>
<li class="ulchildlink"><strong><a href="elb_ug_hdg_0005.html">Modifying a Backend Server Group</a></strong><br>

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<h1 class="topictitle1">Enabling Modification Protection</h1>
<div id="body0000001504938677"><div class="section" id="elb_ug_hdg_0009__section367392435912"><h4 class="sectiontitle">Scenario</h4><p id="elb_ug_hdg_0009__p5238104582611">You can enable the modification protection for a backend server group to prevent it from being modified or deleted by accident.</p>
</div>
<div class="section" id="elb_ug_hdg_0009__section8775839105917"><h4 class="sectiontitle">Constraints</h4><p id="elb_ug_hdg_0009__p4123912437">If modification protection is enabled for a backend server group, you cannot:</p>
<ul id="elb_ug_hdg_0009__ul1320634511436"><li id="elb_ug_hdg_0009__li92061345114315">Modify its basic information.</li><li id="elb_ug_hdg_0009__li6689296495">Configure health checks for it.</li><li id="elb_ug_hdg_0009__li237224091416">Add backend servers to it.</li><li id="elb_ug_hdg_0009__li20603174914447">Delete the backend server group and its associated resources.</li></ul>
</div>
<div class="section" id="elb_ug_hdg_0009__section786213133013"><h4 class="sectiontitle">Procedure</h4><ol id="elb_ug_hdg_0009__ol1597193151518"><li id="elb_ug_hdg_0009__en-us_topic_0000001462081541_li144626117276">Log in to the management console.</li><li id="elb_ug_hdg_0009__en-us_topic_0000001462081541_li204624113275">In the upper left corner of the page, click <span><img id="elb_ug_hdg_0009__image178134505011837" src="en-us_image_0000001747739624.png"></span> and select the desired region and project.</li><li id="elb_ug_hdg_0009__en-us_topic_0000001462081541_li194625132711">Click <span><img id="elb_ug_hdg_0009__image119108087111720" src="en-us_image_0000001794660485.png"></span> in the upper left corner to display <strong id="elb_ug_hdg_0009__b207044260211720">Service List</strong> and choose <strong id="elb_ug_hdg_0009__b191303439811720">Network</strong> &gt; <strong id="elb_ug_hdg_0009__b173447467711720">Elastic Load Balancing</strong>.</li><li id="elb_ug_hdg_0009__en-us_topic_0000001462081541_li20553057761">In the navigation pane on the left, choose <strong id="elb_ug_hdg_0009__b1885119237284">Elastic Load Balancing</strong> &gt; <strong id="elb_ug_hdg_0009__b1485415235288">Backend Server Groups</strong>.</li><li id="elb_ug_hdg_0009__en-us_topic_0000001462081541_li1155416406243">On the <strong id="elb_ug_hdg_0009__b47571826123210">Backend Server Groups</strong> tab page, locate the backend server group and click its name.</li><li id="elb_ug_hdg_0009__en-us_topic_0000001462081541_li1348075212221">On the <strong id="elb_ug_hdg_0009__b11716524143316">Summary</strong> tab page, click <strong id="elb_ug_hdg_0009__b157191824163313">Configure</strong> next to <strong id="elb_ug_hdg_0009__b0722182417331">Modification Protection</strong>.</li><li id="elb_ug_hdg_0009__li16362854171913">In the <strong id="elb_ug_hdg_0009__b49787576335">Configure Modification Protection</strong> dialog box, enable <strong id="elb_ug_hdg_0009__b49811457113315">Modification Protection</strong>.</li><li id="elb_ug_hdg_0009__li131511319182210">Click <strong id="elb_ug_hdg_0009__b114441163417">OK</strong>.</li></ol>
<div class="note" id="elb_ug_hdg_0009__en-us_topic_0000001124473719_note8738203063713"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="elb_ug_hdg_0009__en-us_topic_0000001124473719_p2738143013716">Disable <strong id="elb_ug_hdg_0009__b16961614203416">Modification Protection</strong> if you want to delete a backend server group or modify its settings.</p>
</div></div>
</div>
</div>
<div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="elb_ug_hdg_0000.html">Backend Server Group</a></div>
</div>
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</th>
</tr>
</thead>
<tbody><tr id="elb_ug_jl_0000__row15206195901019"><td class="cellrowborder" valign="top" width="28.599999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="elb_ug_jl_0000__p162077592109">2025-04-08</p>
<tbody><tr id="elb_ug_jl_0000__row4372162035112"><td class="cellrowborder" valign="top" width="28.599999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="elb_ug_jl_0000__p73721120135116">2025-05-13</p>
</td>
<td class="cellrowborder" valign="top" width="71.39999999999999%" headers="mcps1.3.1.1.3.1.2 "><p id="elb_ug_jl_0000__p19421142442319">Modified the following content:</p>
<p id="elb_ug_jl_0000__p15557152713231">Added:</p>
<ul id="elb_ug_jl_0000__ul51871629192317"><li id="elb_ug_jl_0000__li41871329142310"><a href="elb_ug_fz_0007.html#elb_ug_fz_0007__en-us_topic_0000001910425601_section395152674212">Enabling or Disabling Modification Protection</a></li><li id="elb_ug_jl_0000__li7261101132415"><a href="elb_ug_jt_0012.html#elb_ug_jt_0012__section15640254181819">Configuring Modification Protection for a Listener</a></li><li id="elb_ug_jl_0000__li06085306239"><a href="elb_ug_hdg_0009.html">Enabling Modification Protection</a></li></ul>
</td>
</tr>
<tr id="elb_ug_jl_0000__row15206195901019"><td class="cellrowborder" valign="top" width="28.599999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="elb_ug_jl_0000__p162077592109">2025-04-08</p>
</td>
<td class="cellrowborder" valign="top" width="71.39999999999999%" headers="mcps1.3.1.1.3.1.2 "><p id="elb_ug_jl_0000__p6207259191019">Added the description that all AZs are selected by default for dedicated load balancers.</p>
</td>
@ -72,7 +79,7 @@
<tr id="elb_ug_jl_0000__row173111601314"><td class="cellrowborder" valign="top" width="28.599999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="elb_ug_jl_0000__p165541733201318">2022-12-15</p>
</td>
<td class="cellrowborder" valign="top" width="71.39999999999999%" headers="mcps1.3.1.1.3.1.2 "><p id="elb_ug_jl_0000__p131316121312">Modified the following content:</p>
<ul id="elb_ug_jl_0000__ul17577191518175"><li id="elb_ug_jl_0000__li1577151516175">Added <a href="elb_ug_fz_0005.html">Configuring Deletion Protection for Load Balancers</a>.</li><li id="elb_ug_jl_0000__li35501295183">Updated "Adding or Removing Backend Servers (Dedicated Load Balancers)" to state that dedicated load balancers support the HTTPS as the health check protocol.</li></ul>
<ul id="elb_ug_jl_0000__ul17577191518175"><li id="elb_ug_jl_0000__li1577151516175">Added <a href="elb_ug_fz_0007.html#elb_ug_fz_0007__en-us_topic_0000001910425601_section2036320242512">Enabling or Disabling Deletion Protection</a>.</li><li id="elb_ug_jl_0000__li35501295183">Updated "Adding or Removing Backend Servers (Dedicated Load Balancers)" to state that dedicated load balancers support the HTTPS as the health check protocol.</li></ul>
</td>
</tr>
<tr id="elb_ug_jl_0000__row1668414481218"><td class="cellrowborder" valign="top" width="28.599999999999998%" headers="mcps1.3.1.1.3.1.1 "><p id="elb_ug_jl_0000__p16851748132113">2022-09-30</p>

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<div class="note" id="elb_ug_jt_0012__note12644153615238"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="elb_ug_jt_0012__p178332409199"><strong id="elb_ug_jt_0012__b19772193213515">Frontend Protocol/Port</strong> and <strong id="elb_ug_jt_0012__b2772932955">Backend Protocol</strong> cannot be modified after you have configured them. If you want to modify the protocol or port of the listener, add another listener to the load balancer.</p>
</div></div>
</div>
<div class="section" id="elb_ug_jt_0012__section724417138240"><h4 class="sectiontitle">Modifying a listener</h4><ol id="elb_ug_jt_0012__ol772094312418"><li id="elb_ug_jt_0012__li2720043202417">Log in to the management console.</li><li id="elb_ug_jt_0012__li9720164310246">In the upper left corner of the page, click <span><img id="elb_ug_jt_0012__image1016891703825" src="en-us_image_0000001747739624.png"></span> and select the desired region and project.</li><li id="elb_ug_jt_0012__li87206434243">Click <span><img id="elb_ug_jt_0012__image84514125511" src="en-us_image_0000001794660485.png"></span> in the upper left corner to display <strong id="elb_ug_jt_0012__b745104117559">Service List</strong> and choose <strong id="elb_ug_jt_0012__b646184125511">Network</strong> &gt; <strong id="elb_ug_jt_0012__b134717416553">Elastic Load Balancing</strong>.</li><li id="elb_ug_jt_0012__li10720114372416">Locate the load balancer and click its name.</li><li id="elb_ug_jt_0012__li12298323184613">Modify the listener in either of the following ways:<ul id="elb_ug_jt_0012__ul793192154716"><li id="elb_ug_jt_0012__li815283916522">On the <strong id="elb_ug_jt_0012__b3741921112916">Listeners</strong> page, locate the listener, and click <strong id="elb_ug_jt_0012__b19051792273">Edit</strong> in the <strong id="elb_ug_jt_0012__b139065992717">Operation</strong> column.</li><li id="elb_ug_jt_0012__li79352111476">Click the name of the target listener. On the <strong id="elb_ug_jt_0012__b138041650143419">Basic Information</strong> page, click <strong id="elb_ug_jt_0012__b1180575083413">Edit</strong> on the top right corner.</li></ul>
<div class="section" id="elb_ug_jt_0012__section15640254181819"><a name="elb_ug_jt_0012__section15640254181819"></a><a name="section15640254181819"></a><h4 class="sectiontitle">Configuring Modification Protection for a Listener</h4><p id="elb_ug_jt_0012__p188111198">You can enable modification protection for a listener to prevent it from being modified or deleted by accident.</p>
<ol id="elb_ug_jt_0012__ol185401329437"><li id="elb_ug_jt_0012__li58244192407">Log in to the management console.</li><li id="elb_ug_jt_0012__li8824101912409">Click <span><img id="elb_ug_jt_0012__en-us_topic_0000001934844634_en-us_topic_0240829509_image177714713415" src="en-us_image_0000001961843941.png"></span> in the upper left corner of the console and select a desired region and project.</li><li id="elb_ug_jt_0012__li28247196408">Click <span><img id="elb_ug_jt_0012__en-us_topic_0000001934844634_image15397174411119" src="en-us_image_0000001934685298.png"></span> in the upper left corner to display <strong id="elb_ug_jt_0012__en-us_topic_0000001934844634_b639724418113">Service List</strong> and choose <strong id="elb_ug_jt_0012__en-us_topic_0000001934844634_b839719442117">Network</strong> &gt; <strong id="elb_ug_jt_0012__en-us_topic_0000001934844634_b6397154491120">Elastic Load Balancing</strong>.</li><li id="elb_ug_jt_0012__li1379615339436">On the displayed page, locate the load balancer and click its name.</li><li id="elb_ug_jt_0012__li4430135619311">On the <strong id="elb_ug_jt_0012__b1559303015519">Listeners</strong> tab, locate the listener, and click its name.</li><li id="elb_ug_jt_0012__en-us_topic_0000001124473719_li662115566309">On the <strong id="elb_ug_jt_0012__b1940251215314">Summary</strong> tab, click <strong id="elb_ug_jt_0012__b74033122536">Configure</strong> next to <strong id="elb_ug_jt_0012__b14403171215531">Modification Protection</strong>.</li><li id="elb_ug_jt_0012__li117714019423">In the displayed dialog box, enable <strong id="elb_ug_jt_0012__b82494328531">Modification Protection</strong>. Once you enable it, you cannot modify or delete the listener. You cannot modify its forwarding policies and the default backend server group, either.</li></ol>
<div class="note" id="elb_ug_jt_0012__en-us_topic_0000001124473719_note8738203063713"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="elb_ug_jt_0012__en-us_topic_0000001124473719_p2738143013716">You need to disable <strong id="elb_ug_jt_0012__b1451072125611">Modification Protection</strong> if you want to modify or delete a listener.</p>
</div></div>
</div>
<div class="section" id="elb_ug_jt_0012__section724417138240"><h4 class="sectiontitle">Modifying a Listener</h4><ol id="elb_ug_jt_0012__ol772094312418"><li id="elb_ug_jt_0012__li2720043202417">Log in to the management console.</li><li id="elb_ug_jt_0012__li9720164310246">In the upper left corner of the page, click <span><img id="elb_ug_jt_0012__image1016891703825" src="en-us_image_0000001747739624.png"></span> and select the desired region and project.</li><li id="elb_ug_jt_0012__li87206434243">Click <span><img id="elb_ug_jt_0012__image84514125511" src="en-us_image_0000001794660485.png"></span> in the upper left corner to display <strong id="elb_ug_jt_0012__b745104117559">Service List</strong> and choose <strong id="elb_ug_jt_0012__b646184125511">Network</strong> &gt; <strong id="elb_ug_jt_0012__b134717416553">Elastic Load Balancing</strong>.</li><li id="elb_ug_jt_0012__li10720114372416">Locate the load balancer and click its name.</li><li id="elb_ug_jt_0012__li12298323184613">Modify the listener in either of the following ways:<ul id="elb_ug_jt_0012__ul793192154716"><li id="elb_ug_jt_0012__li815283916522">On the <strong id="elb_ug_jt_0012__b3741921112916">Listeners</strong> page, locate the listener, and click <strong id="elb_ug_jt_0012__b19051792273">Edit</strong> in the <strong id="elb_ug_jt_0012__b139065992717">Operation</strong> column.</li><li id="elb_ug_jt_0012__li79352111476">Click the name of the target listener. On the <strong id="elb_ug_jt_0012__b138041650143419">Summary</strong> page, click <strong id="elb_ug_jt_0012__b1180575083413">Edit</strong> on the top right corner.</li></ul>
</li><li id="elb_ug_jt_0012__li1672124372411">On the <strong id="elb_ug_jt_0012__b10825754145511">Edit</strong> dialog box, modify parameters, and click <strong id="elb_ug_jt_0012__b17450111955615">OK</strong>.</li></ol>
</div>
<div class="section" id="elb_ug_jt_0012__section630190201235"><a name="elb_ug_jt_0012__section630190201235"></a><a name="section630190201235"></a><h4 class="sectiontitle">Deleting a Listener</h4><ol id="elb_ug_jt_0012__ol10940073201316"><li id="elb_ug_jt_0012__li1867020302482">Log in to the management console.</li><li id="elb_ug_jt_0012__li1267043016488">In the upper left corner of the page, click <span><img id="elb_ug_jt_0012__image8777134535514" src="en-us_image_0000001747739624.png"></span> and select the desired region and project.</li><li id="elb_ug_jt_0012__li0374123114395">Click <span><img id="elb_ug_jt_0012__image498520487551" src="en-us_image_0000001794660485.png"></span> in the upper left corner to display <strong id="elb_ug_jt_0012__b7985548155519">Service List</strong> and choose <strong id="elb_ug_jt_0012__b1998624815510">Network</strong> &gt; <strong id="elb_ug_jt_0012__b14988144815558">Elastic Load Balancing</strong>.</li><li id="elb_ug_jt_0012__li10486424201316">Locate the load balancer and click its name.<div class="note" id="elb_ug_jt_0012__note265614935516"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="elb_ug_jt_0012__ul1735135312473"><li id="elb_ug_jt_0012__li1641395517473">If the listener has backend servers associated, disassociate the backend servers before deleting the listener.</li><li id="elb_ug_jt_0012__li1246721351116">If HTTP requests are redirected to an HTTPS listener, delete the redirect before deleting the HTTPS listener.</li><li id="elb_ug_jt_0012__li182512509527">If the listener has a forwarding policy, delete the forwarding policy before deleting the listener.</li><li id="elb_ug_jt_0012__li1273535320473">After a listener is deleted, the associated backend server group is also deleted.</li></ul>

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</li>
<li class="ulchildlink"><strong><a href="en-us_topic_0015479967.html">Creating a Shared Load Balancer</a></strong><br>
</li>
<li class="ulchildlink"><strong><a href="elb_ug_fz_0005.html">Configuring Deletion Protection for Load Balancers</a></strong><br>
<li class="ulchildlink"><strong><a href="elb_ug_fz_0007.html">Configuring Modification Protection or Deletion Protection for a Load Balancer</a></strong><br>
</li>
<li class="ulchildlink"><strong><a href="elb_ug_fz_0015.html">Modifying the Bandwidth</a></strong><br>
</li>

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