<p class="shortdesc">本文介绍在购买DDoS高防IP后如何为网站添加域名。</p> <section class="section context" id="dc_ddos_cfg_0013__context_hft_32c_1nb"><div class="tasklabel"><h2 class="doc-tairway">背景信息</h2></div> <p class="p">在网站高防中添加域名进行高防IP接入后，访问流量经过高防IP过滤，实现保护网站。您必须在DNS服务商处 添加域名对应的CNAME，保证网站流量正常经过高防IP，防护才能生效。</p> <div class="p"> <img class="image" id="dc_ddos_cfg_0013__image_n5c_p2c_1nb" src="https://obs-cn-shanghai.fincloud.pinganyun.com/pacloud/20220811172415-121c056c9f53.jpg"> </div> </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/console/microApp/security-ads" target="_blank">DDoS防护控制台</a>。</span> </li><li class="li step stepexpand"> <span class="ph cmd">在左侧导航栏中，单击<span class="ph uicontrol">网站高防</span>。</span> </li><li class="li step stepexpand"> <span class="ph cmd">在<span class="keyword wintitle">网站高防</span>页面右上角中，单击<span class="ph uicontrol">添加域名</span>。</span> </li><li class="li step stepexpand"> <span class="ph cmd">在<span class="keyword wintitle">添加域名</span>页面，配置相关信息。</span> <div class="itemgroup info"> <table class="table frame-all" id="dc_ddos_cfg_0013__table_kh2_fc1_1nb"><caption></caption><colgroup><col style="width:50%"><col style="width:50%"></colgroup><thead class="thead"> <tr class="row"> <th class="entry" id="dc_ddos_cfg_0013__table_kh2_fc1_1nb__entry__1"> <p class="p"><strong class="ph b">配置项</strong></p> </th> <th class="entry" id="dc_ddos_cfg_0013__table_kh2_fc1_1nb__entry__2"> <p class="p"><strong class="ph b">说明</strong></p> </th> </tr> </thead><tbody class="tbody"> <tr class="row"> <td class="entry" headers="dc_ddos_cfg_0013__table_kh2_fc1_1nb__entry__1 "> <p class="p">防护网站</p> </td> <td class="entry" headers="dc_ddos_cfg_0013__table_kh2_fc1_1nb__entry__2 "> <div class="p">输入防护网站。<div class="note note note_note"><span class="note__title">说明：</span> 一级域名和二级域名需分开配置， a123.com 和 b123.com 需要作为两个不同的域名分别进行配置，否则访问可能出现异常。例如，只配置了 abc.com，在访问 a123.com 时有可能提示无法访问。</div></div> </td> </tr> <tr class="row"> <td class="entry" headers="dc_ddos_cfg_0013__table_kh2_fc1_1nb__entry__1 "> <p class="p">协议类型</p> </td> <td class="entry" headers="dc_ddos_cfg_0013__table_kh2_fc1_1nb__entry__2 "> <div class="p">选择协议类型。<div class="note note note_note"><span class="note__title">说明：</span> 有HTTPS站点，务必勾选HTTPS，同时建议勾选HTTP，以应对HTTP跳转等问题，保证访问平滑。</div></div> </td> </tr> <tr class="row"> <td class="entry" headers="dc_ddos_cfg_0013__table_kh2_fc1_1nb__entry__1 "> <p class="p">源站IP</p> </td> <td class="entry" headers="dc_ddos_cfg_0013__table_kh2_fc1_1nb__entry__2 "> <p class="p">输入源站IP。</p> </td> </tr> <tr class="row"> <td class="entry" headers="dc_ddos_cfg_0013__table_kh2_fc1_1nb__entry__1 "> <p class="p">选择资源</p> </td> <td class="entry" headers="dc_ddos_cfg_0013__table_kh2_fc1_1nb__entry__2 "> <p class="p">选择资源。</p> </td> </tr> <tr class="row"> <td class="entry" headers="dc_ddos_cfg_0013__table_kh2_fc1_1nb__entry__1 "> <p class="p">选择线路</p> </td> <td class="entry" headers="dc_ddos_cfg_0013__table_kh2_fc1_1nb__entry__2 "> <p class="p">选择线路。目前仅支持BGP线路。</p> </td> </tr> </tbody></table> </div> </li><li class="li step stepexpand"> <span class="ph cmd">单击<span class="ph uicontrol">下一步</span>。</span> </li><li class="li step stepexpand"> <span class="ph cmd">弹出提示页面，单击<span class="ph uicontrol">确认</span>。</span> <div class="itemgroup info"> <div class="note note note_note"><span class="note__title">说明：</span> <ul class="ul" id="dc_ddos_cfg_0013__ul_mhs_hf1_1nb"> <li class="li">在您的DNS服务商处修改DNS解析，添加CNAME记录，具体操作请参见《修改DNS解析》。</li> <li class="li">若源站IP已泄露，您的网站可能被绕过高防IP直接被攻击，建议域名添加完成后更换源站IP，具体操作请参见《更换源站IP》。</li> </ul> </div> </div> </li></ol></section>