[BlueOnyx:27183] Re: 5211R Dns TXT Record exceeding Length Kills whole Zone

Michael Stauber mstauber at blueonyx.it
Wed Aug 14 21:24:50 -05 2024


Hi Rodrigo,

> TO inform that adding a TXT Record with 355 Characters or more,  on a 5211R BLueonyx
> 
> 1: Kills the whole DNS zone and renders unsuable the DNS records for that domain
> 
> Removing the record and adding on the includes dns file
> With increments of 100 chars  Loads the zone correctly
> 
> 2 Also we found that adding a Domain Key with the following format
> Also kills dns.
> 
> Example:
> mail._domainkey.domainzone.com.       in txt "v=DKIM1; k=rsa; p=MIIBIjANxxxxxxyyyyyyyyyJ/OWFNyi->>>String exceeds 355chars"
> 
> We propose that the Records that exceed the RFC Length that causes the failure
> Should be separated in pieces and added so that it wont kill dns
> 
> Solution Proposed
> mail._domainkey      in txt ( "v=DKIM1; k=rsa;" "p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAkwxd2"
> "OzuxLMeqnf2qLZWFaUPdhyB9guwE9X1GuElk84HfmTJ/ioh56+J/OWFNyi"
> "until line ends " )


Many thanks for the information and the heads up. I'll look into this.

-- 
With best regards

Michael Stauber



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