bind slave not get DNS update

[Chris Buxton]

Are you sure that this is the same address that is shown in your allow-notify statement on the slave? You really don't need allow-notify at all, and removing it may help in tracking this down.

Regards,
Chris Buxton
BlueCat Networks

On Jan 5, 2011, at 6:42 PM, Steve Zeng wrote:

> On slave, it sees the public IPs. tcpdump shows:
> 
> 01:38:51.035945 IP A.A.A.A.domain > C.C.C.C.domain:  7545 notify [b2&3=0x2400] [1a] SOA? airg.com. (72)
> 01:38:51.036174 IP C.C.C.C.domain > A.A.A.A.domain:  7545 notify Refused- 0/0/0 (26)
> 
> Steve
> 
> -----Original Message-----
> From: Mark Andrews [mailto:marka at isc.org] 
> Sent: Wednesday, January 05, 2011 5:36 PM
> To: Steve Zeng
> Cc: bind-users at lists.isc.org
> Subject: Re: bind slave not get DNS update
> 
> 
> In message <8B5C6F575422414AA91B46C454126B6C02666AF068 at EXCHMVS.exchange.airg>, 
> Steve Zeng writes:
>> Tcpdump on master(A.A.A.A) shows the following:
> 
> And what source address does the slave see?  
> 
>> 23:59:54.788272 IP A.A.A.A.domain > C.C.C.C.domain:  26512 notify [b2&3=0x240
>> 0] [1a] SOA? mydomain.com. (72)
>> 23:59:54.788898 IP C.C.C.C.domain > A.A.A.A.domain:  26512 notify Refused- 0/
>> 0/0 (26)
>> 
>> So it looks like master did sent notify out but refused by BIND slave
>> also-notify {
>>   B.B.B.B;                                # public IP of first DNS slave(win
>> dows DNS)
>>   C.C.C.C;                                # public IP of second DNS slave(Li
>> nux BIND DNS)
>> };
>> 
>> Steve
>> 
>> -----Original Message-----
>> From: bind-users-bounces+stevez=airg.com at lists.isc.org [mailto:bind-users-bou
>> nces+stevez=airg.com at lists.isc.org] On Behalf Of Niall O'Reilly
>> Sent: Wednesday, January 05, 2011 3:33 PM
>> To: bind-users at lists.isc.org
>> Subject: Re: bind slave not get DNS update
>> 
>> On 05/01/11 01:50, Steve Zeng wrote:
>>> I don't have NS record for both of the slaves (windows DNS slave and
>>> Linux DNS slave). I use "also-notify" and it works for Windows DNS
>>> slave. But not for BIND/Linux.
>> 
>> On 05/01/11 19:56, Steve Zeng wrote:
>>> Rndc transfer (initialized at the slave side) works fine...
>> 
>> 	Good.  Manual intervention works.
>> 
>> 	I suggest you try to determine the following from your logs
>> 	on both master and (Linux) slave.
>> 
>> 	Whether the master is sending the NOTIFY.
>> 	Whether the slave is receiving the NOTIFY.
>> 	Whether the slave is acting on the NOTIFY.
>> 
>> 	That should make it clear what's not happening without
>> 	manual intervention.
>> 
>> 
>> 	Best regards,
>> 	Niall O'Reilly
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> -- 
> Mark Andrews, ISC
> 1 Seymour St., Dundas Valley, NSW 2117, Australia
> PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org
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