Getting Hits From Public IP's On My AD DNS Server. Event Id Is 5504

Afghan shaikh | Thu, 03 Aug 2017 at 09:23 hours | Replies : 2 | Points : 100

Hi,

I am getting frequent event log with ID 5504 on my DC DNS server server. Some unknown IP's are trying to send the packet to my DNS server.

Pls find the event message.

The DNS server encountered an invalid domain name in a packet from 211.166.0.166. The packet will be rejected. The event data contains the DNS packet.

Kindly help me on this issue

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Sitender Kumar
Novice (N+)

Hi Afghan,

Please check and enable "Disable Recursion" and "Secure Cache against pollution".

https://learningintheopen.org/tag/the-dns-server-encountered-an-invalid-domain-name-in-a-packet/

Thu, 03 Aug 2017 14:38 hrs |

Sitender Kumar
Novice (N+)

Hi Afghan,

Please let us know if issue is fixed.

Thu, 30 Nov 2017 06:37 hrs |

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