[bind10-dev] question about configure option "zero-no-soa-ttl" in bind9

[zhanglikun]

Hi Mark,

Thank you and your draft.

Likun


> The option is to allow one to find the containing zone of a name to be
> added to the dns without it causing side effects.
> 
> 	dig soa <name.to.be.added> -> nxdomain
> 	dig soa <to.be.added>	   -> nxdomain
> 	dig soa <be.added> 	   -> soa
> 	dig soa <added> 	      not done
> 	dig soa .	              not done
> 
> 	nsupdate
> 	zone be.added
> 	update add name.to.be.added 3600 A 1.2.3.4
> 	send
> 
> Without this the cache may contain a nxdomain response which prevents the
> newly added records being returned.
> 
> https://tools.ietf.org/tools/rfcmarkup/rfcmarkup.cgi/draft-andrews-dnsext-soa-
> discovery-00