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How to install Pre-requisites RPM for EBS 12.2 on OEL 7/RHEL 7 In this post, I am going to share how to install pre-requisites RPM related to EBS R12.2 through Oracle public yum repository. It is recommended that this x86_64 Pre-Install RPM be installed on top of a 'minimal' installation of Oracle Linux to provide just the necessary packages to install and run Oracle E-Business Suite Release 12. RPM provides all required E-Business Suite packages for both the application and database tiers. This Pre-Install RPM helps to reduce the preparation time of an environment prior to installing, upgrading or cloning an E-Business Suite R12 instance by performing the following tasks: Downloading and installing all software package versions and dependencies required for installing E-Business Suite R12 (12.1, 12.2). Creating the users oracle and applmgr for use as owners of the database and application tiers respectively, while setting hard and soft shell resource limits. Updating kernel pa...

Install Stress tool on Amazon Linux Login into EC2 instance sudo amazon-linux-extras install epel -y sudo yum install stress -y If you like please follow and comment

HAPROXY as the Reverse Proxy and usage with EBS/Oracle Apps HAProxy is a free, very fast, and reliable solution offering high availability, load balancing, and proxying for TCP and HTTP-based applications. It is particularly suited for very high traffic websites and powers quite a number of the world's most visited ones. Benefits of Reverse Proxy Load Balancing Web Caching Improved performance Clients never know where is Server More Efficient and Secure SSL encryption Integration with Oracle EBS TLS Termination point in front of the Oracle EBS. Up-to-date TLS endpoint  Certificates signed with SHA-2 (signature algorithm: sha256WithRSAEncryption) TLS 1.2 with stronger cipher suites Can be implemented on same node as application Node TLS 1.0, TLS 1.1, TLS 1.2 supported Works with both Self signed and CA certificates. HAProxy can provide an up-to-date TLS endpoint with the following configuration options: • Certificates signed with SHA-2 (signature algorithm: sha256WithRSAEncryption...

Schemas used during  Login into an EBS Application When we sign on to Oracle E-Business Suite, we initially connect to the public schema, APPLSYSPUB . Once the user name and password have been verified, Oracle E-Business Suite connects you to the APPS schema and allows you to choose responsibility. You can then use the Forms interface or HTML interface to access data that resides in a product schema. So whenever a database session is created it will be connected via apps user. The OAcore and forms services will be making the database session. In R12.2 the data source in Weblogic is used for the database connection. More about APPLSYSPUB check the link below https://www.funoracleapps.com/2019/02/understanding-applsyspub-user-in-oracle.html If you like please follow and comment

The flow of how to Start/Stop Oracle Application Services R12.2 In this post, I am going to share how to start/stop the application services in EBS R12.2. I have tried to explain the process through an easy diagram as a visual explanation is remembered longer. CONTEXT_NAME=<SID>_<hostname> Please note in the case of Multiple Application nodes or RAC you have to start services on all nodes. If you like please follow and comment

How to change APPS password in Oracle Apps/EBS 11i Steps to change apps password in 11i 1) Shut down the application on all nodes 2) Take the backup below files on all application nodes. $IAS_ORACLE_HOME/Apache/modplsql/cfg/wdbsvr.app $ORACLE_HOME/reports60/server/CGIcmd.dat  (8.0.6 Oracle_home) $FND_TOP/resource/wfmail.cfg 3) Backup below tables create table FND_USER_BK_<YYYYMM> as select * from FND_USER; create table FND_ORACLE_USERID_BK_<YYYYMM> as select * from FND_ORACLE_USERID; 4) Change apps password using the below command. FNDCPASS apps/<appspwd> 0 Y system/<pwd> SYSTEM APPLSYS <new password>  **Changing APPLSYS user password will automatically change APPS user password. 5) Change APPS password in the following files. $IAS_ORACLE_HOME/Apache/modplsql/cfg/wdbsvr.app $ORACLE_HOME/reports60/server/CGIcmd.dat  (8.0.6 Oracle_home) $FND_TOP/resource/wfmail.cfg 6) Start the Application on all the nodes. 7 ) Validate services. 8) Recreate DB...

How to Start and Stop Oracle Database and Listener Automatically  with Server Reboot In this post, I am going to share how the Oracle database and listener can automatically shutdown and startup when the server reboots. I have a 19c  Database  Steps: 1) Edit the /etc/oratab file, and place a Y at the end of the entry for the databases you want to  automatically restart when the system reboots.  # vi /etc/oratab [SID]:[ORACLE_HOME]:Y GOLD19:/u01/19cDB:Y The Y on the end of the string signifies that the database can be started and stopped by the  ORACLE_HOME/bin/dbstart and ORACLE_HOME/bin/dbshut scripts. 2) Create the service script /etc/init.d/dbora. The content of the script is as follows. Make sure you  change the values of variables ORA_HOME and ORA_OWNER to match your environment. All is being done via root user. #!/bin/bash # chkconfig: 35 99 10 # description: Starts and Stops Oracle and Listener processes ORACLE_HOME=/u01/19cDB ORA_OWNER=oracle P...

How to Install Oracle 19c Database on OEL 7.9 In this post, I am going to share the steps to install a 19c database on OEL 7.9 I have already created a VM for this setup. OS version: OEL 7.9 Add the hostname and IP in /etc/hosts if not using DNS as per your server setup  [root@fundb ~]# cat /etc/hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 192.168.56.21 fundb.training fundb Download the latest oel 7 public repositories on the server to do the setup. I will use the same to install all the prereqs for the 19c database. [root@fundb yum.repos.d]# cd /etc/yum.repos.d [root@fundb yum.repos.d]# wget http://yum.oracle.com/public-yum-ol7.repo --2021-02-09 17:15:53--  http://yum.oracle.com/public-yum-ol7.repo Resolving yum.oracle.com (yum.oracle.com)... 23.54.89.140 Connecting to yum.oracle.com (yum.oracle.com)|23.54.89.140|:80... connected. HTTP request sent, awaiting resp...

Understanding the Flow when EBS URL is entered in the Browser In this post, I am going to share what happens when we enter an EBS URL in a browser .  When a HTTP request is made for EBS, the clinet system will first check the hostname and port is reachable or not.Then request is received by the Oracle HTTP Server (OHS). When the configuration of OHS is for a resource that needs to be processed by Java, such as logging into EBS, the OHS configuration will redirect the request to the Web Logic Server (WLS) Java process (OACore in this case). WLS determines the J2EE application that should deal with the request, which is called "oacore". This J2EE application needs to be deployed and available for processing requests in order for the request to succeed. The J2EE application needs to access a database and does this via a datasource which is configured within WLS. Login HTTP headers When the EBS login works OK, the browser will be redirected to various different URLs in order for ...