"Linda" wrote in message
news:cg3pep$23v0$1@sf1.isc.org...
> Hi,
> If dns.aaa.com is the master and dns.isp.com is the slave, should I config
> allow-transfer in named.conf of dns.aaa.com for dns.isp.com?
>
> If dns.isp.com is one of the NS records in the zone file, should I still
> config allow-transfer in the named.conf?
> IN NS dns.aaa.com.
> IN NS dns.isp.com.
>

Yes. You do configure allow transfer, if you have blocked all transfer to.