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Old 09-06-2012, 06:46 PM
Marco Fioretti
 
Default Fwd: centos email server suddenly much slower. What to do?

sorry, didn't realize I had not sent it to the list too.

I have ran the command again several times, and now it is much slower,
~30/40 msec


---------- Forwarded message ----------
From: Marco Fioretti <marco.fioretti@gmail.com>
Date: 2012/9/6
Subject: Re: [CentOS] centos email server suddenly much slower. What to do?
To: Steve Clark <sclark@netwolves.com>


2012/9/6 Steve Clark <sclark@netwolves.com>:
> On 09/06/2012 01:58 PM, Marco Fioretti wrote:
>
> 2011 msec
>
>
> Pretty slow my dig to the same server ran in 113 msec
>

yes, >2 seconds seemed high to me too. But what does this mean? What
can the reason be?


Thx
Marco
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Old 09-06-2012, 06:59 PM
Dennis Jacobfeuerborn
 
Default Fwd: centos email server suddenly much slower. What to do?

On 09/06/2012 08:56 PM, Rajagopal Swaminathan wrote:
> Greetings,
>
> On Fri, Sep 7, 2012 at 12:16 AM, Marco Fioretti
> <marco.fioretti@gmail.com> wrote:
>> sorry, didn't realize I had not sent it to the list too.
>>
>> I have ran the command again several times, and now it is much slower,
>> ~30/40 msec
>>
>
> Innocent, ignorant, curious ramble:
>
> I understand it has something to do with MX records...
>
> Dunno if it will help.. Will setting DNS to 8.8.8.8 help?
>
> or will it require payment to google?
>
> Recently in India, there were issues with DNS.

No that doesn't require payment. Usually you want you DNS to be close to
keep the response time short but with a 2 second response time pretty much
any nameserver in the world will be faster.
So go ahead and use 8.8.8.8 and see if that works better.

Regards,
Dennis

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