You can configure static benign and command-and-control (C2) domains in the DNS cache to take immediate action on configured domains.
To configure benign and C2 domains, run the commands set services security-metadata-streaming dnscache custom-list benign < domain > and set services security-metadata-streaming dns-cache custom-list c2 <domain >
To view the benign and C2 entries in the DNS cache, use the commands show services dns-filtering cache summary, show services dns-filtering cache c2, and show services dns-filtering cache benign.