question about Subdomain query to Domain

[Truong Tan Son]

Dear Sir,

It can not copy root hints on "root.domain.com" (xx.xx.xx.10) to DNS server on windows ?

On DNS server of Windows, I search "Root Hints" from xx.xx.xx.10 (root.domain.com) to copy, it can not see.

Is anythings wrong with root hint of "domain.com" ?


dig @xx.xx.xx.10     domain.com    .
..
;; connection timed out; no servers could be reached

dig @xx.xx.xx.10    sub.domain.com.    
..
;; connection timed out; no servers could be reached

dig @yy.yy.yy.20    sub.domain.com .        Ok

--------
ROOT-SERVER: xx.xx.xx.10 (root.domain.com) 
--------
**/etc/named.conf
options {
        directory "/var/named";
        allow-query { xx.xx.xx/24;yy.yy.yy/24; 127.0.0/8;};
        allow-transfer { yy.yy.yy.20;};
        transfer-format many-answers; 
};
zone "." IN {
        type hint;
        file "named.ca";
};
zone "domain.com" IN {
        type master;
        file "domain.com.db";
        allow-update { any;};
};

**/var/named/named.ca
.                        3600000  IN  NS    A.ROOT-SERVERS.NET.
A.ROOT-SERVERS.NET.      3600000      A     198.41.0.4
..

**/var/named/domain.com.db
$TTL    86400;
$ORIGIN domain.com.
@ IN SOA root.domain.com. admin.domain.com. (
1;
10800;
3600;
604800;
86400;
);
                                      IN      NS      root.domain.com.
root                                IN      A        xx.xx.xx.10
sub.domain.com.            IN      NS     dns1.sub.domain.com.
dns1.sub.domain.com.    IN      A        yy.yy.yy.20


--------------
SUB-DOMAIN: yy.yy.yy.20 (dns1.sub.domain.com);
--------------
**/etc/named.conf
options {
        directory "/var/named";
};
zone "." IN {
        type hint;
        file "root.local";
};
zone "sub.domain.com" IN {
        type master;
        file "/var/named/sub.domain.com.db";
};

**/var/named/root.local
.                              99999  IN     NS    root.domain.com.
root.domain.com.     99999  IN     A     xx.xx.xx.10



Best regards,
---


If the .10 server is authoritative for the root zone, that should work.

It's not very redundant, though. I'd recommend, at the very least, 
listing multiple root servers, if they are available. If no others are 
available, I'd recommend making the .20 server a slave to the .10 server 
for the root zone. You might want to make the .20 server a slave for the 
root zone regardless, unless you expect that zone to be changing very 
frequently.

- Kevin

Truong Tan Son wrote:

>Dear Sir,
>
>Following you teach, I insert root hints to yy.yy.yy.20 (dns1.sub.domain.com) to query to parent "domain.com".
>
>** /etc/named.conf:
>options {
>        directory "/var/named";
>};
>zone "." IN {
>        type hint;
>         ^^^^^^^     
>        file "/var/named/root.hint";
>            ^^^^^^^^^^^^^^^^^
>};
>zone "sub.domain.com" IN {
>        type master;
>        file "/var/named/sub.domain.com.db";
>        allow-update { any;};
>};
>
>** /var/named/root.hint
>.                               99999    IN     NS    root.domain.com.
>root.domain.com.     99999    IN     A       xx.xx.xx.10
>
>
>Now, it works.Subdomain can query to parent.
>
>
>It that right ?
>
>
>regards,
>--
>
>
>  
>
>>My server currently is running Bind 9, and have trouble to query to root domain server.
>>
>>domain name:            domain.com
>>server-ip                   root.domain.com (xx.xx.xx.10)
>>
>>subdomain name:     sub.domain.com
>>sub-server-ip:          dns1.sub.domain.com (yy.yy.yy.20)
>>
>>
>>I setting on   yy.yy.yy.20 :
>>
>>#/etc/named.conf
>>....
>>zone "sub.domain.com" IN {
>>       type master;
>>       file "/var/named/sub.domain.com.db";
>>       allow-transfer { xx.xx.xx.10;};
>>};
>>
>>#/var/named/sub.domain.com.db:
>>....
>>                                 IN      NS      dns1.sub.domain.com.
>>                                 IN      NS      root.domain.com.
>>root.domain.com.       IN      A         xx.xx.xx.10
>>
>>mail                            IN      A        yy.yy.yy.ab
>>www                          IN      A        yy.yy.yy.cd
>>
>>
>>DNS clients using yy.yy.yy.20 (dns1.sub.domain.com) can not query  records of  xx.xx.xx.10 (root.domain.com).
>>
>>Do I have missing on config file above ?
>>
>>    
>>
>How is the .20 server set up to resolve queries outside of the 
>sub.domain.com zone? Forwarding, root hints, stub zone(s), what? Perhaps 
>you should have shown us your entire config, so we wouldn't have to go 
>around guessing at such things...
>
>- Kevin
>
>
>
>
>
>
>  
>