Troubleshoot Oracle HTTP Server in Oracle ebs R12?

The configuration file for apache in R12 is located in the below location.
$ORA_CONFIG_HOME/10.1.3/Apache/Apache/conf/httpd.conf

For successful start of Apache exit code must be 0 ,
If this value is non zero like 150,152 or 204 then identify root cause of non zero exit code by examing below files.


1)First check Apache startup log file .
$LOG_HOME/appl/admin/log/adapcctl.txt 

2) $LOG_HOME/ora/10.1.3/opmn/HTTP_Server~1.log

3) Check for apache access logs and error logs.
$LOG_HOME/ora/10.1.3/Apache

ls -tlrh error_log.*|tail 
ls -tlrh access_log.*|tail

All about OPMN click on the below link.
http://abduulwasiq.blogspot.in/2013/05/opmn-in-oracle-apps-r12.html


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