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08-13-2009 10:30 PM
08-13-2009 10:30 PM
How to enable local Cache DNS
Server is a fully pacthed 11.23. In fact its a NNM (Network node Monitoring) server which has to communicate to lot of other devices every time.
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08-13-2009 10:39 PM
08-13-2009 10:39 PM
Re: How to enable local Cache DNS
#sam
- "Networking and Communications"
- "DNS (BIND)"
- "DNS Local Name Server"
- "Actions"
- "Configure Caching-Only Server"
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08-14-2009 12:03 AM
08-14-2009 12:03 AM
Re: How to enable local Cache DNS
Can you give me the full procedure?
thanks,
Arun
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08-14-2009 12:06 AM
08-14-2009 12:06 AM
Re: How to enable local Cache DNS
check this links :
http://books.google.sk/books?id=g2_fM29vAdoC&pg=PA594&lpg=PA594&dq=hp+ux+dns+configure+Caching-Only+Server&source=bl&ots=BApOAUhpFm&sig=6_4XsXIVmWwFKoZ8F2bPdrBQc3k&hl=sk&ei=ZBqFSpiCBtOh_Aa2k9WkBw&sa=X&oi=book_result&ct=result&resnum=4#v=onepage&q=hp%20ux%20dns%20configure%20Caching-Only%20Server&f=false
or :
http://www.freelab.net/unix/hp-ux/chap10_dns.html
chapter : 10.2 HP-UX
mikap
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08-14-2009 03:41 AM
08-14-2009 03:41 AM
Re: How to enable local Cache DNS
As per the procedure I need to copy the some important files from the DNS master server to the cleint like /etc/dns/boot.cacheonly,/etc/dns/db.cache and /etc/dns/db.127.0.0 and all. But here my master DNS server is windows server.
How I will get those file from this wiondows server.
ALso, let me confirm this local DNS cache is for what. My understanding is DNS information (db cache) from the DNS server will be stored in the local server so that every time it no need check in the DNS server for the same info. Mainly this is required the servers like NNM which is communicating with lot of diffrent devices (Servers, Switches, routers etc) every time. Please correct me if I am wrong.
Thanks,
Arun
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08-14-2009 03:58 AM
08-14-2009 03:58 AM
Re: How to enable local Cache DNS
i don't know exactly your configuration of network, but if you have a |NDS server on Windows it;s ok, the dns cache only make internelal database, so the first time he will forward the requeste to your dns server, and if he recieve the record he will cache it.
When you request second time, he will find the record inside the cache, and if the expiration of the record are ok he will answer, if not he will contact the dns server one from twelve root servers.
mikap
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08-14-2009 04:02 AM
08-14-2009 04:02 AM
Re: How to enable local Cache DNS
the same explanation :
http://www.serverwatch.com/tutorials/article.php/2193011/Back-To-Basics-DNS-Server-Roles----Caching-only-Servers.htm
mikap
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08-14-2009 05:01 AM
08-14-2009 05:01 AM
Re: How to enable local Cache DNS
There my question is how I will get the required (mentioned) files from windows DNS server.
Also, the new link you given is not working :).
Thanks,
Arun
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08-14-2009 05:09 AM
08-14-2009 05:09 AM
Re: How to enable local Cache DNS
checked all links, and still working.
what of files from windows server ???,
cache server, is only for caching, not to provide zone such a master/slave.
mikap
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08-14-2009 05:13 AM
08-14-2009 05:13 AM
Re: How to enable local Cache DNS
Thanks for your immediate responses...
As per the procedure given by you, for enabling local Cache, We have to copy the etc/dns/boot.cacheonly,/etc/dns/db.cache and /etc/dns/db.127.0.0 from the master server and start the named service.
How to get these files from Windows server?
Thanks,
Arun..
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08-14-2009 05:24 AM
08-14-2009 05:24 AM
Re: How to enable local Cache DNS
this is an example from linux host but its the same as on Unix .
http://linux.about.com/od/lna_guide/a/gdelna54t03.htm
mikap
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08-14-2009 05:28 AM
08-14-2009 05:28 AM
Re: How to enable local Cache DNS
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08-14-2009 05:34 AM
08-14-2009 05:34 AM
Re: How to enable local Cache DNS
Thanks a lot for your reply..
But they are not able help me since my DNS server is Windows.
One question - If I do it through SAM, whether it will get the required files automatically from the available DNS master server?
Arun
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08-14-2009 07:09 AM
08-14-2009 07:09 AM
Re: How to enable local Cache DNS
It is the full procedure.
Just open SAM, follow the steps above and enter the IP Adress of your Windows Server.
After that, start the DNS Server under the actions menu.
Which step is not clear enough?
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08-14-2009 07:21 AM
08-14-2009 07:21 AM
Re: How to enable local Cache DNS
I have done that..
How to confirm local cache is enabled and working. Still the name resolution is happeing through the master DNS only. I have put # in the nameserver in /etc/resolv.conf and tested. no address is getting resolved.
If enable DNS server in resolv.conf its working, but the out put is like,
rasnnmdk:/# nslookup sentorlan
Name Server: localhost
Address: 127.0.0.1
Trying DNS
looking up FILES
rasnnmdk:/#
can you tell me how to confirm whether local DNS cache is Okay?
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08-14-2009 08:03 AM
08-14-2009 08:03 AM
Re: How to enable local Cache DNS
#sam
- "Networking and Communications"
- "DNS (BIND)"
- "DNS Local Name Server"
- "Actions"
- "Start the DNS Name Server"
Did you add the Name Server?
#sam
- "Networking and Communications"
- "DNS (BIND)"
- "DNS Resolver"
- "Actions"
- "Specify Name Server"
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08-14-2009 08:33 AM
08-14-2009 08:33 AM
Re: How to enable local Cache DNS
I did both steps.
But still its resolving name from the DNS server only. When it will start resolving from the local cache?
thanks,
Arun
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08-14-2009 08:46 AM
08-14-2009 08:46 AM
Re: How to enable local Cache DNS
The first line of the file should be:
nameserver 127.0.0.1
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08-14-2009 08:48 AM
08-14-2009 08:48 AM
Re: How to enable local Cache DNS
nameserver 127.0.0.1 only
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08-14-2009 09:18 AM
08-14-2009 09:18 AM