How to configure iptables to block a specific DNS record type?
Issue
- How to configure
iptablesfirewall to block a specific DNS record type? - Trying to rate limit the DNS "ANY" query type using an
iptables rulewith the--hex-stringsearch option, but not able to block the source. - How to prevent or stop DNS DDoS by flood of
ANYqueries
Environment
- Red Hat Enterprise Linux
iptablesfirewall- DNS Server
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