I have a bind9 server with TSIG keys. One of those key is named 'TSIG_HAPPYDOMAIN'.
When creating the DynamicDNS provider, the connection to the bind9 service fails if the 'Key Name' value is uppercase. So, if this value is 'TSIG_HAPPYDOMAIN', the addition of a domain fails with the error '[Error] AXFRDDNS: nameserver refused to transfer the zone my.domain: dns: no secrets defined'. However, if the 'Key Name' value is 'tsig_happydomain', the addition is successful.
I have a bind9 server with TSIG keys. One of those key is named 'TSIG_HAPPYDOMAIN'.
When creating the DynamicDNS provider, the connection to the bind9 service fails if the 'Key Name' value is uppercase. So, if this value is 'TSIG_HAPPYDOMAIN', the addition of a domain fails with the error '[Error] AXFRDDNS: nameserver refused to transfer the zone my.domain: dns: no secrets defined'. However, if the 'Key Name' value is 'tsig_happydomain', the addition is successful.