I have PowerDNS and I do not allow external recursion.
I need to protect port 53. I am having a mass-attack.
> Jun 16 12:05:25 domain pdns: Not authoritative for 'adobe.com',
> sending servfail to 220.127.116.11 (recursion was desired)
Does anyone know how to configure Fail2ban for port 53?
Thanks and Best Regards,
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