DNS Resolving problem

[Kevin Darcy]

I'm getting resolution of smtp.polaris.co.in from all 3 polaris.co.in 
nameservers, but the queries seem rather sluggish. What's sluggish from 
my vantage point on the Internet may be bad enough from your vantage 
point to cause a timeout, especially if you're using your ISP's 
nameservers as forwarders (thus adding an extra "hop" to your query path).

As for why the "smtp.polaris.co.in" query failed, but the 
"polaris.co.in" query (with the smtp.polaris.co.in record in the 
response) worked, it could just be the luck of the draw. What might have 
happened is that the response to the smtp.polaris.co.in query arrived 
just after your nslookup timed out, so it was in your forwarder's cache 
already when you made the subsequent "polaris.co.in" query...

                                                                         
                                       - Kevin

S. Zain wrote:

>I have Bind 8.3.7 and i have a problem that one of the Domains is resolved
>in the two DNS's, the domain is (polaris.co.in).
>
>    I am getting this massage:
>            smtp.polaris.co.in
>            Server:  ns1.MYISP.net.sa
>            Address:  XXX.XXX.XXX.101
>            *** ns1.MYISP.net.sa can't find smtp.polaris.co.in: Non-existent
>host/domain
>
>    If i try to Resolve the main Domain.
>            polaris.co.in
>            Server:  ns1.MYISP.net.sa
>            Address:  XXX.XXX.XXX.101
>
>            Non-authoritative answer:
>                    polaris.co.in   preference = 1, mail exchanger =
>smtp.polaris.co.in
>                    polaris.co.in   preference = 3, mail exchanger =
>rsmtp.polaris.co.in
>                    polaris.co.in   preference = 2, mail exchanger =
>psldns.polaris.co.in
>
>                    Authoritative answers can be found from:
>                    polaris.co.in   nameserver = dns1.polaris.co.in
>                    polaris.co.in   nameserver = dns2.polaris.co.in
>                    polaris.co.in   nameserver = dns3.polaris.co.in
>                    smtp.polaris.co.in      internet address =
>203.197.144.71
>                    rsmtp.polaris.co.in     internet address =
>203.196.190.68
>                    psldns.polaris.co.in    internet address =
>203.197.144.72
>                    dns1.polaris.co.in      internet address =
>203.197.144.66
>                    dns2.polaris.co.in      internet address =
>203.197.144.67
>                    dns3.polaris.co.in      internet address = 202.54.218.7
>
>
>What could be the problem.
>
>Best Regards
>Zain
>
>
>
>
>
>
>  
>