Can someone help me in understanding Public ,Private ,VIP&SCAN for RAC11gr2

Can someone help me in understanding Public ,Private ,VIP&SCAN for RAC11gr2 as i am new to RAC 11gr2 installtion process

user12085983 wrote:
Can someone help me in understanding Public ,Private ,VIP&SCAN for RAC11gr2 as i am new to RAC 11gr2 installtion processThe public IP address is assigned dynamically using dynamic host configuration protocol (DHCP), or defined statically in a domain name system (DNS) or in a hosts file. It uses the public interface (the interface with access available to clients).
Oracle Clusterware uses interfaces marked as private for internode communication.
The virtual IP (VIP) address is registered in the grid naming service (GNS), or the DNS. Select an address for your VIP that meets the following requirements:
* The IP address and host name are currently unused (it can be registered in a DNS, but should not be accessible by a ping command)
* The VIP is on the same subnet as your public interface
Oracle Database 11g release 2 clients connect to the database using single client access names (SCANs). The SCAN and its associated IP addresses provide a stable name for clients to use for connections, independent of the nodes that make up the cluster. SCAN addresses, virtual IP addresses, and public IP addresses must all be on the same subnet.
The SCAN is a VIP name, similar to the names used for VIP addresses, such as node1-vip. However, unlike a VIP, the SCAN is associated with the entire cluster, rather than an individual node, and associated with multiple IP addresses, not just one address.

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I have been trying to get the pptx files to also open in the viewer. I have been able to do this, but the problem is it wants to try to open everything in viewer.
Here is what I have tried:
1- This wants to open everything in PPT viewer. Not sure why.
if(fileExt = "ppt" or "pptx") then
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     else
     --opens file in the default program on that computer
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end
2-This will just open the 'pptx' file in Power Point. I am sure I am using the 2007 version of PPT viewer in director.
if(fileExt = "ppt") then
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else if(fileExt = "pptx") then
    --opens file in powerpointviewer
_player.open(filePath & " /S", "launchers\PPTVIEW.EXE")
else
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    _player.open(filePath, "launchers\PLAY.EXE")
end if
end
I am not sure where to go from here. Can someone help me? Have not been using director for very long.
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--RUNS WHEN MAIN OPEN BUTTON IS PRESSED--
on mouseUp me
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end case
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--RUNS WHEN MAIN OPEN BUTTON IS PRESSED--
on mouseUp me
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Can someone help me in understanding Public ,Private ,VIP&SCAN for RAC11gr2

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