Enterprise manager configuration failed due to the following error - Listener is not up or database service is not registered with it.

So, I installed 64 bit oracle 11.2.0.1 on Windows machine and got this error.

Enterprise manager configuration failed due to the following error - Listener is not up or database service is not registered with it.




Here is what I did to fix it.

1) Since the log file had tons of java errors, I installed the latest version of java. Just go to www.java.com, and install it.

2) Launch Net Configuration Assistant, delete the current Listener, and add a new Listener with the default values.

3) Open Listener.ora, replace IP Address on the hostname with the machine name.

4) Re start listener service

5) launch command prompt, and run emca -config dbcontrol db -repos recreate



Provide values for SID,port number, and passwords for the users.

It will take some time to drop the current repository and recreate a new one

Flashback table

Using Oracle's FLASHBACK command, it is possible to take any table to its previous state (even after commiting some delete statements)

1) You need to enable row movement on the table
2) You can take the table back to its previous state as of any time period


1) alter table table_name enable row movement;

FLASHBACK TABLE table_name TO TIMESTAMP (SYSTIMESTAMP - INTERVAL '10' minute);
or
FLASHBACK TABLE table_name TO TIMESTAMP (SYSTIMESTAMP - INTERVAL '30' second);

Error Activating Windows 8

So, I installed Windows 8 and it never prompted me to enter my serial.

When I try to activate, I got "DNS name does not exist." with an error code  "0x8007232B"

To Activate Windows

1) Open Command Prompt with "Run as Administrator" option. You think this would be really easy, but with Microsoft way of thinking, not so !!

•   Go to Start Screen
•   Right click any where to get the  "All Apps" icon at the bottom of the screen
• Now locate command prompt icon, right click, choose "Run as Administrator" from the bottom

2) Now that you have the command prompt, type the following slmgr.vbs /ipk followed with your product key, as shown below


slmgr.vbs /ipk XXXXX-XXXXX-XXXXX-XXXXX-XXXXX

iPad XBMC Crashes on start up

It looks like iTunes can sync some of the XBMC settings, So Delete the old XBMC settings and re-install XBMC

Use FileBrowser (like iFile ), and navigate to the following path (Start from your Disk folder ), and delete XBMC folder

var/mobile/Library/Preferences

Re-install XBMC, you are good to go.

Media Server not visible on network

I have a NAS with built in Media Server and one fine day my media server (Twonky) just disappeared from my network. My TV/IPad/Google TV/Apple TV won't find it any longer.

I was able to access my media server through a web browser with the proper port, so I knew it was my router that's preventing it from being discovered.

After 4 months, I figured out the issue. " IGMP Proxy" was enabled on my Verizon Fios Router ( I guess by auto firmware update). Once Disabled, my Twonky Media Server appeared on all devices.

To disable IGMP Proxy, go to your router home page ( usually by typing the default IP Address 192.168.1.1)

1. Click on Advanced Tab/Button
2. Locate IGMP Proxy, 
3. Disable it.