Re: how to make a dns server
From: Kevin D. Goodknecht Sr. [MVP] (admin_at_nospam.WFTX.US)
Date: 07/14/04
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Date: Wed, 14 Jul 2004 13:22:02 -0500
In news:Oc5phtcaEHA.3716@TK2MSFTNGP11.phx.gbl,
Sharad Naik <sharadnaik@nospam-vsnl.net> posted a question
Then Kevin replied below:
> Your thoght is good, but it won't really help in
> accessing the ineternet fast.
> From your question I guess you don't have an AD
> and it won't really help setting up your own DNS just for
> the purpose you mentioned.
>
> Sharad
>
> "thinker" <thinknologist@yahoo.com> wrote in message
> news:2c82101c4697e$9e8f6550$a401280a@phx.gbl...
>> I would like to make a dns server inside LAN pointing to
>> our service provider dns, so that users can have faster
>> access to the internet.
I'll have to respectfully disagree with you Sharad, if they have a couple of
hundred or even a few clients acccessing the internet, there is somewhat of
a benefit to having a local caching only DNS to help in resolving internet
names.
By default MS DNS can cache these records in its cache for up to one day.
There might even be a benefit to increasing the Maximum cache Time to live
to two days or even seven days. Most host records have a TTL of two hours or
less but NS records generally have a TTL of two days, having the NS records
in cache can greatly increase the recursive performance of DNS.
You have to add this entry to increase the maximum cache TTL for MS DNS.
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\DNS\Parameters
MaxCacheTtl
Type: DWORD
Default value: 0x15180 (86,400 seconds = 1 day)
Function: Determines how long the DNS server can save a record of a
recursive name query.
You can use the MaxCacheTtl registry entry to specify how long the DNS
server can save a record of a recursive name query.
If the value of the MaxCacheTtl entry is 0x0, the DNS server does not save
any records.
The DNS server saves the records of recursive name queries in a memory cache
so that it can respond quickly to new queries for the same name. Records are
deleted from the cache periodically to keep the cache content current. The
interval when the records remain in the cache typically is determined by the
value of the Time to Live (TTL) field in the record. The MaxCacheTtl entry
establishes the maximum time that records can remain in the cache. The DNS
server deletes records from the cache when the value of this entry expires,
even if the value of the TTL field in the record is greater.
-- Best regards, Kevin D4 Dad 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. ========================================== http://www.lonestaramerica.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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