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DNS Server Cache

 
 
JBFields
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      27th Apr 2006
I've been assuming that a caching server clears its cache when
rebooted. Dawns on me that i"ve not actually read anywhere
authoritative saying so. Does it?

 
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Herb Martin
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      27th Apr 2006
"JBFields" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> I've been assuming that a caching server clears its cache when
> rebooted. Dawns on me that i"ve not actually read anywhere
> authoritative saying so. Does it?


Yes. And when restarted.

[One of the irritating limitations of the Windows DNS
server is that there is no way to reload the cache from
a file at startup.]

Also note that the "server cache" is completely independent
of the "DNS Client" service cache on DNS clients, including
even a DNS server which runs this slightly misnamed process.

The DNS Client service should likely have been named the
"DNS Cache client" -- DNS still works when it is not running.

--
Herb Martin, MCSE, MVP
Accelerated MCSE
http://www.LearnQuick.Com
[phone number on web site]


 
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Kevin D. Goodknecht Sr. [MVP]
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      28th Apr 2006
Herb Martin wrote:
> "JBFields" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed)...
>> I've been assuming that a caching server clears its cache when
>> rebooted. Dawns on me that i"ve not actually read anywhere
>> authoritative saying so. Does it?

>
> Yes. And when restarted.
>
> [One of the irritating limitations of the Windows DNS
> server is that there is no way to reload the cache from
> a file at startup.]
>
> Also note that the "server cache" is completely independent
> of the "DNS Client" service cache on DNS clients, including
> even a DNS server which runs this slightly misnamed process.
>
> The DNS Client service should likely have been named the
> "DNS Cache client" -- DNS still works when it is not running.


Actually Herb, the true Service name is Dnscache. The GUI calls it the DNS
client. But to stop it and start it from a command it is net stop Dnscache &
net start dnscache

--
Best regards,
Kevin D. Goodknecht Sr. [MVP]
Hope This Helps
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Herb Martin
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      28th Apr 2006
>> The DNS Client service should likely have been named the
>> "DNS Cache client" -- DNS still works when it is not running.

>
> Actually Herb, the true Service name is Dnscache. The GUI calls it the DNS
> client. But to stop it and start it from a command it is net stop Dnscache
> &
> net start dnscache
>


Well, technically it's not a GUI issue but rather the
display name displayed and used by both the GUI and
the command line "Net Start" (net stop) command.

Try "net start" for the display, and you can start and
stop it by that name as well.

In any case, the (display) name is a terrible choice
that has continued to confuse people.

--
Herb Martin, MCSE, MVP
Accelerated MCSE
http://www.LearnQuick.Com
[phone number on web site]

"Kevin D. Goodknecht Sr. [MVP]" <(E-Mail Removed)> wrote in message
news:%(E-Mail Removed)...
> Herb Martin wrote:
>> "JBFields" <(E-Mail Removed)> wrote in message
>> news:(E-Mail Removed)...
>>> I've been assuming that a caching server clears its cache when
>>> rebooted. Dawns on me that i"ve not actually read anywhere
>>> authoritative saying so. Does it?

>>
>> Yes. And when restarted.
>>
>> [One of the irritating limitations of the Windows DNS
>> server is that there is no way to reload the cache from
>> a file at startup.]
>>
>> Also note that the "server cache" is completely independent
>> of the "DNS Client" service cache on DNS clients, including
>> even a DNS server which runs this slightly misnamed process.
>>
>> The DNS Client service should likely have been named the
>> "DNS Cache client" -- DNS still works when it is not running.

>
> Actually Herb, the true Service name is Dnscache. The GUI calls it the DNS
> client. But to stop it and start it from a command it is net stop Dnscache
> &
> net start dnscache
>
> --
> Best regards,
> Kevin D. Goodknecht Sr. [MVP]
> Hope This Helps
> ===================================
> When responding to posts, please "Reply to Group"
> via your newsreader so that others may learn and
> benefit from your issue, to respond directly to
> me remove the nospam. from my email address.
> ===================================
> http://www.lonestaramerica.com/
> http://support.wftx.us/
> https://secure.lsaol.com/
> ===================================
> Use Outlook Express?... Get OE_Quotefix:
> It will strip signature out and more
> http://home.in.tum.de/~jain/software/oe-quotefix/
> ===================================
> Keep a back up of your OE settings and folders
> with OEBackup:
> http://www.oehelp.com/OEBackup/Default.aspx
> ===================================
>
>



 
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JBFields
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      28th Apr 2006
Excellent. Thanks.

 
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