* W. C. A. Wijngaards: > This is an interpretation problem in RFC4034 6.2(3). > > A workaround is to give your HINFO in lowercase: > HINFO "vmware" "freebsd" > > Unbound lowercases all text in the rdata of HINFO records before > verification. Because that is what I believe RFC4034 6.2(3) means. The two strings aren't DNS names (<domain-name>s), so they shouldn't be lower-cased. I don't know why RFC 4034 specifies HINFO, it seems a mistake. How do you handle NAPTR? As far as I understand RFC 4034, you should downcase the replacement only.