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IgorVM2014-05-26 09:18:58
IgorVM, 2014-05-26 09:18:58
How to block UDP connections to port 53 (DNS)?
Good afternoon! Bots with different ip addresses (changing periodically) on port 53 are constantly hitting our server.
About a dozen of these queries appear per second (data from Wireshark)
20465 259.254291000 98.89.95.32 our IP DNS 82 Standard query 0xb9c4 ANY wradish.com
20602 262.111072000 98.89.95.32 our IP DNS 87 Standard query 0x2ae6 ANY magas.bslrpg
How can I block all connections by UDP to port 53 that contain all TYPE=ANY? Server operating system Windows Server 2012 R2.
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