All seasoned Oracle Apps DBAs know that Autoconfig is the master utility that can configure the whole E-Business Suite Instance. In E-Business Suite releases 11i, 12.0 and 12.1 running Autoconfig recreated all the relevant configurations files used by Apache server. If the context file has the correct settings, then configuration files should include the correct setting after running Autoconfig. This is not the case anymore in Oracle E-Business Suite 12.2. Some of the Apache config files are under fusion middleware control now, namely httpd.conf, admin.conf and ssl.conf. All other Apache config files are still under Autoconfig control. But these 3 critical config files include the main config pieces like Webport, SSL port etc.
So if you have to change the port used by EBS instance, then you have to log into the Weblogic admin console and change port there and then sync context xml file using adSyncContext.pl. This adSyncContext.pl utility will get the current port values from Weblogic console and update the xml with new port values. Once the context xml file syncs, we have to run Autoconfig to sync other config files and database profile values to pickup new webport
Similarly, if you want to change the JVM augments or class path, you have run another utility called adProvisionEBS.pl to make those changes from command line or login to the Weblogic admin console to do those changes. Interestingly, few of the changes done in Weblogic admin console or fusion middleware control are automatically synchronized with context xml file by the adRegisterWLSListeners.pl script that runs in the background all the time. But Apache config file changes were not picked by this script, so Apache changes had to be manually synchronized
There are a few My Oracle Support notes that can help you understand these utilities little more, such as 1676430.1 and 1905593.1. But understand that Autoconfig is a different ball game in Oracle E-Business Suite R12.2.
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