thanks for your response.
From: Matus UHLAR - fantomas <uh...@fantomas.sk>
To: bind-users@lists.isc.org
Sent: Sunday, 18 September 2011 7:50 PM
Subject: Re: Query regarding NS record
On 18.09.11 21:31, babu dheen wrote:
> Once i delegated NS record in my ISP name server to my company name server
> for mail.myoffice.com website as below. Do i need to allow DNS port from
> ANY(INTERNET) to my DNS server in firewall or i just need to allow DNS
> traffic only from ISP DNS server
> ISP DNS server configuration
>
> mycompany-dns-server-ip IN A 10.10.10.10
> mail.myoffice.com IN NS <mycompany dns server ip>
you must allow DNS traffic to your server, both TCP and UDP protocols from all
world to port 53.
Note that this way, when your NS is down, mail.myoffice.com won't work. I
recommend tou to get your ISP slave your zone and create additional NS records
pointing on your ISP's name severs for mail.myoffice.com.
-- Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/
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