Set up Oracle Cloud Infrastructure DNS to use Domain Name

In this post we will configure Oracle Cloud Infrastructure DNS feature to Map a Domain name. This is a required step to Map the Load Balancer IP Address to a domain name so that users can access your Application/Web Servers inside the cluster with a domain name in the browser.

Below are the pre requisites for setting up Domain Name and Load Balancer Mapping in OCI.

• Existing Domain Name. If you do not have, you can buy it from any vendor e.g. godaddy,bigrock.. etc. In this post I will use my domain : rohanwalia.com
• Working Oracle Cloud Infrastructure Set Up - Two Web Instances in different Availability Domain with Load Balancer configured in Front.
• You can read about OCI Load Balancer 
• Refer the sample Set Up using Load Balancer - OCI Load Balancer & Instances Set Up
• For this Example, we have Two Web Servers (Backend Servers) - Webserver1 & Webserver2 in two Availability domain's as Backend Set. Load Balancer is configured to spread load to Webserver1 & Webserver2 on Port 80. Listener is configured to listen http traffic on Load Balancer IP address on Port 80.

*** All IP Addresses and Name Server  have been masked for security reasons.

Ok so we are good with the Set up. Let us configure OCI DNS Service to use Domain Name.

First, go to OCI DNS Service home page from OCI Account.

Create Windows Instances on Oracle Infrastructure as a Service - Step By Step

In this post we will see how we can create Windows Instances on Oracle IaaS (Infrastructure as a Service) with desired Image (Windows Version) , Compute , Memory , Disk as well as enabling Remote Desktop service. At last we will enable RDP Connections to the instance and will try to connect.

Lets Get started.

Login to the cloud portal using Identity domain, Username & Password Information. Go to Compute service console. Click Instances and click create instance.

Click on MarketPlace to search for Windows Image.

Alert in Oracle Public Cloud - Notifications on Quota

There are new updates in Oracle Public Cloud portal. Now there are new Alerts which lets one set notifications for the quota usage. These notifications are both for Metered as well as Subscription based Non Metered PaaS services.

Below are the steps to set Alerts and notifications in Cloud Public Portal for PaaS Services.

Step 1 : On the Dashboard, Click on Estimated Balance of the services for which you want to set new alert.

Step 2 : Check the Amount for Database Public Cloud Service. This is total available credits. Suppose this is X amount. We will set an alert on 80% of X.

Oracle Public Cloud - Test Throughput from Customer Place to Data Center

Most common question in mind while going to cloud is to get statistics for latency and throughput from customer location to the Data Centers based in different geography’s e.g. (US – Chicago and Ashburn ).

Below is the way to get the numbers of throughput and latency from tooling provided by OPC Interface.

Step 1 : Click on the user name and select Diagnostics.

Oracle Public Cloud : Create Public/Private keys for secure access

For accessing Oracle Cloud Services securely and for authorized access, combination of Public and Private Keys are required. So before the process of creating a new Database Instance public and private keys should be generated. Below is the process for generating public/private key.

Tools Required: PuttyGen.

Download PuttyGen from: http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html

Follow below steps to use PuttyGen to generate keys.

Open Putty Key Generator.

Accept the defaults with SSH-2 RSA and 2048. Click on Generate.

Now next step is important one. One needs to move mouse in the empty area freely till time the message “Please generate some randomness by moving the mouse over blank area” is flashing on the bar.

Sangam 14 - My Experience

It was a proud moment for myself to attend and present in Largest Independent Oracle Event in India. The conference was very well organised by AIOUG and was a way to network and learn about latest trends in Oracle Stack. Though the conference had large number of  DBA's (Yes they are super people) sessions but there were also good amount of sessions for Oracle Fusion Middleware.

Session on Big Data by Satyender was an eye opener of where we are heading towards in way to store data apart from conventional RDMS. Its the way ahead and also for Application Developers. For application developers, we should know how to use NoSQL and Big Data databases for our applications.

Session at Sangam 2014 - AIOUG

I am proud to announce that I will be Presenting a Session at Sangam 2014 this year in Bangalore India.

Sangam is a yearly Oracle User Group Conference Hosted by All India Oracle User Group (AIOUG) and is the largest Independent Oracle event in India.


Below are the details of my Session :

Session           : 201421

Session Title   : Customizations of Enterprise Applications using Meta Data Services in Oracle ADF

Duration          : 50 Minutes

Track               : Development Track

The Session will be about Customizations and Personalizations of Applications using powerful XML based MDS framework provided by Oracle ADF. It will consist of introduction to Meta Data Services (MDS) and how MDS framework is enabled in ADF applications using Jdeveloper. There will be an explanation of how MDS works behind the scenes and how requests for Customizations are being persisted in MDS Store. Finally there will be a Demo of Personalization using Jdeveloper 12c.

I am excited to talk about this topic @ Sangam14.

See you there !!

Seeded Customizations using MDS in Oracle ADF

In the last post Personalization using MDS in Oracle ADF we saw the power of MDS Framework in Oracle ADF using which Users can personalize pages, components etc according to their own need. MDS saves these changes in MDS Store based on every user and applies on the runtime to the base document.

In Personalization, user is at the driver seat , changing things according to the needs. But there are cases where the application is developed and after there is a requirement of two different flavours of the same application. For example, there is a ADF application and there are two clients. One client wants some fields to be visible and some specific color settings while other client wants other fields to be hidden and different color settings. We can also put in this way, that one client want some regions (task flows) to be displayed and other client says other regions to be displayed.

Now in these cases the , making changes to the existing application will be difficult. Most common solution will be we create two versions of application , each version having specific changes required by the client. Hmm that works good for two clients but what will happen if there are hundreds, thousands of clients. One has to create / maintain same number of versions of applications. More to it, what will happen if there will be a common functionality change which needs to go to all versions. Maintenance will become a nightmare.

So by using Seeded Customizations provided by MDS, changes for specific needs / clients can be done on base document. There will be a single Base Application and changes corresponding to all the clients/layers will be done and these changes will be applied on runtime depending upon which client is using it..

Personalization using MDS in Oracle ADF

Personalization for the users is the most wanted features in Enterprise applications nowadays. This gives user good experience and makes him to decide what and how he needs to see things in Enterprise Applications .

This post we will see how can we do User level Personalizations in Oracle ADF Applications and steps to configure it.

Example uses Jdev 11.1.1.7. Lets get started !


Created a simple ADF Application. Created BC from HR schema consist of EmployeesEO/VO and DepartmentsEO/VO and AppModule.

Implemented ADF Security. This is required since we are doing personalization for a particular user