Infoblox’s global team of threat hunters uncovers a DNS operation with the ability to bypass traditional security measures and control the Great Firewall of China. Read about “Muddling Meerkat” and the many other threat actors discovered by Infoblox Threat Intel here.

NIOS DNS DHCP IPAM

Reply

Invalid QCLASS in DNS error messages?

New Member
Posts: 1
1100     0

I'm seeing DNS responses with the response code "Refused" and a single Question with a QCLASS of 6 or 29807. Those both seem to be considered available for assignment by IETF Review. Any ideas what those QCLASSes mean coming from an Infoblox device?

Showing results for 
Search instead for 
Did you mean: 

Recommended for You