[dns-operations] glb.cdc.gov nameservers not accepting TCP

[Tim Maestas]

Anyone have a contact for CDC.gov (or glb.cdc.gov - other than
hostmaster at cdc.gov which I've already reached out to)?

A response to a +DO query for DNSKEY glb.cdc.gov is 1253 bytes.  If the
EDNS bufsize is <1253 the nameservers for glb.cdc.gov are setting TC=1
however they do not seem to be accepting TCP queries.

-Tim
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