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List:       james-user
Subject:    Re: How to purge dns cache
From:       zkn <zkn () abv ! bg>
Date:       2006-12-20 17:34:08
Message-ID: 45897410.2060007 () abv ! bg
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Stefano Bagnara wrote:
> zkn wrote:
>> Hi,
>>
>> Does JAMES have a DNS cache and where it is stored?
>>
>> We are running a JAMES server which forwards emails to another mail 
>> server. We had a problem with the second mail server so we moved it 
>> to a new machine and we made the necessary DNS configuration changes.
>> nslookup on the machine where JAMES runs returns the right new IP, 
>> but JAMES is still trying to send all emails to the old IP. I 
>> restarted JAMES but that didn't help.
>>
>> Ozkan
>
> Maybe the IP is cached in one of the DNS servers james is using to 
> resolve.
>
> if you didn't specify it James try to autorecognize them from the 
> underlying OS (/etc/resolv.conf for linux, ipconfig /all for windows)
In the configuration I had specified two dns servers: localhost which is 
our secondary name server and the IP of our primary server. Strangely 
localhost was the third option in resolve.conf and the first two where 
other DNS servers.

I replaced localhost with 127.0.0.1 in the config file and when I 
restarted JAMES it worked fine. Now emails are being sent successfully.

I run nslookup using the first two DNS server from the resolve.conf and 
the result was good - the new IP. So know I'm not sure what exactly was 
the problem. I suppose that James didn't work with localhost instead of 
ip and that caused James to use the servers from resolve.conf which had 
cached the old IP but when I tested them the cache had already been purged.

Thanks for your quick responses, guys!
>
> Stefano
>
>
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