After you add a website to Web Application Firewall (WAF), you can enable the blacklists feature. This feature blocks access requests from specified IP addresses, Classless Inter-Domain Routing (CIDR) blocks, and IP addresses in specified regions. You can specify either an IP address blacklist or a region blacklist based on your requirements.

Prerequisites

  • A WAF instance is purchased. The instance must meet the following requirements:
    • The instance is billed on a subscription basis.

      If your WAF instance is of the Business edition or lower, you can use only an IP address blacklist. If you want to use a region blacklist, make sure that your WAF instance is of the Enterprise edition or higher.

      For more information, see Editions and features.

    For more information, see Purchase a WAF instance.

  • Your website is added to the WAF console. For more information, see Add domain names.

Background information

WAF supports both IP address and region blacklists.

  • An IP address blacklist blocks access requests from specified IP addresses and CIDR blocks.
  • A region blacklist blocks the access requests from specified regions inside or outside China. You can specify a total of 247 regions inside and outside China as blocked regions.

    You can use the IP address library of Taobao to query the source region of an IP address. For more information, visit the IP address library of Taobao.

Procedure

  1. Log on to the Web Application Firewall console.
  2. In the top navigation bar, select the resource group to which the instance belongs and the region, Mainland China or International, in which the instance is deployed.
  3. In the left-side navigation pane, choose Protection Settings > Website Protection.
  4. In the upper part of the Website Protection page, select the domain name for which you want to configure the whitelist.Switch Domain Name
  5. On the Access Control/Throttling tab, find the IP Blacklist section. Turn on Status and click Settings.
    Note If you specify an IP address blacklist, all requests destined for your website are checked by this blacklist. You can also configure a whitelist for Access Control/Throttling to allow qualified requests to bypass the check. For more information, see Configure a whitelist for Access Control/Throttling.
    IP address blacklist
  6. On the IP Blacklist page, configure IP Blacklist and Area-based IP Blacklist.
    • IP Blacklist: Enter IP addresses that you want to block and click Save in the lower part of the page. Separate multiple IP addresses with commas (,). You can add a maximum of 200 IP addresses.IP address blacklist
    • Area-based IP Blacklist: Select regions that you want to block from the Inside China and Outside China tabs. Then, click Save in the lower part of the page.Region blacklist
    After the blacklists feature is enabled, all the access requests from IP addresses and regions in the blacklists are blocked.

References