I have a split DNS system installed in my network.
My external DNS only serves DNS records for my 3 domains.
I have been receiving a lot of spurious DNS queries associated with DNS amplification attacks, which all get rejected by bind. However I would like to block these requests at the firewall rather than passing them to my externally facing DNS.
So what what I would like to do is:
[ul]Any ideas?
Thanks,
Pat
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A custom IPS signature would be an option. No fancy stuff inside, just matching '^(dom1.com|dom2.com|dom3.com)'.
Actually, you could open a ticket an ask FTNT if they would help out with this.
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