Hello, I have PowerDNS Authoritative Server is 2.9.22 on Centos 5.5 32 bits.
I do not allow external recursion but I have had a brutal mass-attack from China and Romania. It is a "recursion was desired" attack. Does anyone know how to configure fail2ban to protect port 53? Is there a Tutorial for that? I am a newbie. I tried with iptables but I need something that automaticaly blocks ips. Best Regards, Kim
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