How to update QUICKLY for clients on subdomains.

[Truong Tan Son]

Barry Margolin wrote:

> Your diagram is confusing.  Are those zones or are they nameservers?
> Are the servers slaves for each other?

All they are masters of type zone,  3 zones are placed on 3 machines.
                 ^^^^^^^
[zone]
(nameserver)
                                       [domain.com]
                                      (root.domain.com)
                                    /                             \
                                  /                                 \
    [sub1.domain.com]                                    [sub2.domain.com]
  (root1.sub1.domain.com)                            (root2.sub2.domain.com)


I change some records on [sub1.domain.com] zone, and "rndc reload" "rndc flush", but Clients of [sub2.domain.com] can not see new 
records.

Is it wrong something ?

regards,

>>
>> Servers has been setting:
>> --------------------------------------------------------------------
>> @       IN      SOA     root1.domain.com.       admin-dns.domain.com. (
>> 20052012;    Serial
>> 3H;                Refresh
>> 15M;             Retry
>> 1W;               Expire
>> 1D;                Minimum TTL
>> )
>>
>>
>> Need I change parameters above   ?
>>
>>
>>
>> Regards,
>> ---
>>
>> >Truong Tan Son schrieb:
>> >
>> >>Dear Sir,
>> >>
>> >>I have trouble about update quickly for clients on subdomains.
>> >>
>> >>Zoom out of my DNS:
>> >>----------------------------------------------------------
>> >>[domain.com]                is    Root server.
>> >>[sub1.domain.com]        is    Subdomain.
>> >>[sub2.domain.com]        is    Subdomain.
>> >>
>> >>                        [domain.com]
>> >>                        /                        \
>> >>                       /                          \
>> >>[sub1.domain.com]                    [sub2.domain.com]
>> >>-----------------------------------------------------------
>> >>
>> >>After change some records of [sub1.domain.com],
>> >>and reload [sub1.domain.com], after that, clients of [sub2.domain.com] CAN
>> >>NOT see the new records, it still use old records.
>> >>
>> >>It only takes effect if I reload all servers.
>> >>
>> >>Default, $TTL is 3600 for all servers.
>> >>
>> >>Please help me how to update quickly for clients after change something on
>> >>servers.
>> >>
>> >>
>> >>Thanks,
>> >>--
>> >>
>> >>
>> >>
>> >>
>> >>
>> >>
>
> -- 
> Barry Margolin, barmar at alum.mit.edu
> Arlington, MA
> *** PLEASE post questions in newsgroups, not directly to me ***
> *** PLEASE don't copy me on replies, I'll read them in the group ***
>
>