Comments on: How to setup a private DNS for your virtual cluster

By: Harald van Breederode

Harald van Breederode — Tue, 29 May 2012 10:27:37 +0000

Hi Rana,

This is something you can do easily yourselves by running h2n against your own host file.
-Harald

By: rana

rana — Fri, 18 May 2012 18:39:56 +0000

hi, could you please upload the files generated by h2n..it could be very usefull..

By: kurt

kurt — Wed, 28 Dec 2011 18:45:10 +0000

I’ve used this as you recommend, and it works. I definitely appreciate you intelligence and ingenuity putting this dns project together.
Your work is very much appreciated.

By: Harald van Breederode

Harald van Breederode — Tue, 13 Sep 2011 08:16:19 +0000

Hi,

They have 2 nameserver lines, one with IP address 0.0.0.0 and another one with the IP address of the other node. The 0.0.0.0 entry tells the DNS resolver to talk to the named process on the localhost. They also contains a “search example.com” entry to allow the usage of non-fully qualified hostnames.
-Harald

By: forurinfoonly

forurinfoonly — Mon, 12 Sep 2011 04:15:49 +0000

Hi,
How does the resolve.conf on the node1 and node2 looks like ?

Thanks

By: SCAN you LISTEN to this? « The Blog from the DBA Classroom

SCAN you LISTEN to this? « The Blog from the DBA Classroom — Thu, 18 Mar 2010 12:17:04 +0000

[...] on 18/03/2010 My good friend and colleague Harald van Breederode recently posted an article on How to Set Up a Private DNS for Your Virtual Cluster where he discussed DNS and the steps he took to create both master and slave DNS servers on his [...]

By: filesearch.web.id

filesearch.web.id — Sun, 07 Mar 2010 23:39:34 +0000

nice info, thanks for sharing.

By: Blogroll Report 22/01/2009 – 29/01/2010 « Coskan’s Approach to Oracle

Blogroll Report 22/01/2009 – 29/01/2010 « Coskan’s Approach to Oracle — Sun, 21 Feb 2010 03:25:47 +0000

[...] 6-How to configure DNS for SCAN in 11GR2 for personal tests ? (easier zone configuration with H2N ) Harald van Bredeerode-How to setup a private DNS for your virtual cluster [...]

By: Hans-Peter Sloot

Hans-Peter Sloot — Wed, 03 Feb 2010 10:19:12 +0000

Hi Harald,

Nice post.
Pitty only that I did not see it earlier.
I have just set up a DNS server for 11gR2.
H2n would have saved me a lot of time.

Hans-Peter

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By: Log Buffer #176: a Carnival of the Vanities for DBAs | The Pythian Blog

Log Buffer #176: a Carnival of the Vanities for DBAs | The Pythian Blog — Fri, 29 Jan 2010 19:02:52 +0000

[...] Harald van Breederode shows how to setup a private DNS for your virtual cluster. [...]

By: jarneil

jarneil — Wed, 27 Jan 2010 10:34:18 +0000

Hi Harald,

Absolutely you need oel 5 for ACFS.

However, you can indeed run Grid Infrastructure on OEL4 (and indeed rhel 4), you get a message of the following type popping up when installing on 4:

CRS-4123: Oracle High Availability Services has been started.
ohasd is starting
ADVM/ACFS is not supported on Redhat 4

but you still get a working grid infrastructure.

cheers,

jason.

By: Harald van Breederode

Harald van Breederode — Wed, 27 Jan 2010 10:22:07 +0000

Hi Jason,

Part of the 11gR2 Grid infrastructure is ASM Cluster Filesystem (ACFS) and you defenitly need OEL5 for that. I am not sure if you can install the 11gR2 Grid Infrastructure without ACFS on OEL4. I do know however that the 11gR2 database does run on OEL4, but if you want to use ASM you will need Grid Infrastructure for a standalone server which requires OEL5. So in most situations OEL5 is what you need too have.
-Harald

By: Harald van Breederode

Harald van Breederode — Wed, 27 Jan 2010 10:15:07 +0000

Thanx for your comment and for catching the typo. I’ve corrected the IP address.
-Harald

By: Andre

Andre — Wed, 27 Jan 2010 09:16:25 +0000

Nice example! There only seems to be a typo in the resolv.conf file shown.
The IP address “nameserver 192.168.40.1422″ has an extra ’2′.