Hi,
I'm using PDNS Authoritative Server 4.1.3, today I see my server not response and error or timeout on resolves . When check the server see to many DNS requests from some IPs from Brazil like DDOS attack. To fix errors and timeouts, I block the attacker subnet in my firewall . Now could you please let me know how protect my server from DOS and DDOS attacks ? Best Regards, Hamed Haghshenas
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