<p class="shortdesc">反向解析即PTR记录，是<a class="xref" href="https://baike.baidu.com/item/%E7%94%B5%E5%AD%90%E9%82%AE%E4%BB%B6%E7%B3%BB%E7%BB%9F/3013461" target="_blank">电子邮件系统</a>中的邮件交换记录的一种；PTR记录常被用于反向<a class="xref" href="https://baike.baidu.com/item/%E5%9C%B0%E5%9D%80%E8%A7%A3%E6%9E%90/10840482" target="_blank">地址解析</a>。将IP地址解析为域名。</p> <section class="section attention" id="CreateReversePparsing__xbb_czp_4sb"> <p class="p">本反向解析只支持通过本账户购买EIP的反向解析，其他IP不能添加反解。</p> </section> <section><div class="tasklabel"><h2 class="doc-tairway">操作步骤</h2></div><ol class="ol steps"><li class="li step stepexpand"> <span class="ph cmd">登录<a class="xref" href="https://www.ocftcloud.com/ac/login" target="_blank">金融云云解析DNS控制台</a>。</span> </li><li class="li step stepexpand"> <span class="ph cmd">在左侧导航栏中，选择<span class="ph menucascade"><span class="ph uicontrol">公网反向解析</span><abbr> > </abbr><span class="ph uicontrol">+反向解析</span></span>。</span> <div class="itemgroup info"> <p class="p"><img lang="zh-CN" class="image" id="CreateReversePparsing__image_i5p_52q_4sb" src="https://obs-cn-shanghai.fincloud.pinganyun.com/pacloud/20222309105758-1095019299a2.jpg" width="500"></p> <table class="table" id="CreateReversePparsing__table_lsv_xbw_nsb"><caption></caption><colgroup><col><col></colgroup><thead class="thead"> <tr class="row"> <th class="entry" id="CreateReversePparsing__table_lsv_xbw_nsb__entry__1"><strong class="ph b">配置项</strong></th> <th class="entry" id="CreateReversePparsing__table_lsv_xbw_nsb__entry__2"><strong class="ph b">描述</strong></th> </tr> </thead><tbody class="tbody"> <tr class="row"> <td class="entry" headers="CreateReversePparsing__table_lsv_xbw_nsb__entry__1 "> <p class="p">反解IP</p> </td> <td class="entry" headers="CreateReversePparsing__table_lsv_xbw_nsb__entry__2 "> <p class="p">选择本账号下的弹性IP。</p> </td> </tr> <tr class="row"> <td class="entry" headers="CreateReversePparsing__table_lsv_xbw_nsb__entry__1 "> <p class="p">域名</p> </td> <td class="entry" headers="CreateReversePparsing__table_lsv_xbw_nsb__entry__2 "> <p class="p">输入反解域名。</p> </td> </tr> <tr class="row"> <td class="entry" headers="CreateReversePparsing__table_lsv_xbw_nsb__entry__1 "> <p class="p">备注</p> </td> <td class="entry" headers="CreateReversePparsing__table_lsv_xbw_nsb__entry__2 "> <p class="p">填写备注。</p> </td> </tr> </tbody></table> </div> </li><li class="li step stepexpand"> <span class="ph cmd">单击<span class="ph uicontrol">确定</span>。</span> </li><li class="li step stepexpand"> <span class="ph cmd">确认<span class="ph uicontrol">订单信息</span>，选择<span class="ph uicontrol">扣费方式</span>。</span> </li><li class="li step stepexpand"> <span class="ph cmd">单击<span class="ph uicontrol">确认支付</span>。</span> </li></ol></section> <section class="section result" id="CreateReversePparsing__result_fhh_c4r_4sb"><div class="tasklabel"><h2 class="doc-tairway">执行结果</h2></div> <p class="p">公网反向解析创建成功后，可在<span class="ph uicontrol">反向解析列表</span>页面查看相关信息。</p> </section> <section class="section postreq" id="CreateReversePparsing__postreq_ogl_ngd_ytb"><div class="tasklabel"><h2 class="doc-tairway">后续操作</h2></div> <p class="p"><strong class="ph b">修改反向解析信息</strong></p> <p class="p">您可以单击目标反解IP<span class="ph uicontrol">操作</span>列的<span class="ph uicontrol">编辑</span>，修改反解，单击<span class="ph uicontrol">确定</span>，反解IP信息更新为最新内容。</p> </section>