After R12.1.3 installation adstrtal.sh is exiting with error code 3

Issue -> 
After R12.1.3 installation adstrtal.sh is exiting with error code 3

Although the startup script is giving error, all the modules and technical components are working fine, as there is no user complain till now. So, all the

After installing new R12.1.3, concurrent manager was not starting and showing "Inactive nomanager" error

After installing new R12.1.3, concurrent manager was not starting and showing "Inactive nomanager" error.

We have done the following to try to solve the problem.

BNE_UIX_PHYSICAL_DIRECTORY is not configured Issue in Oracle Apps

While generating the document through WEB ADI, the below error message is coming. 
"BNE_UIX_PHYSICAL_DIRECTORY is not configured". 

Oracle Database Security Tutorial

Authentication

Authentication is the process of validating whether proper user is accesing the database Authentication has been done mostly

EBS R12 Migration from Solaris to Linux

How to Migrate Oracle R12 instance from Solaris to Linux

Recently I have migrated the Solaris R12.1.1 instance to Linux. The following article describes the overall process. Although we have mostly followed the oracle doc on R12 export/import and apps tier platform migration, in some of