Saturday Aug 17, 2013

Steps to DeInstall Oracle Weblogic Server 12.1.2.0.0...

How to DeInstall Oracle Weblogic Server 12.1.2.0.0 ? 

- Oracle Weblogic Server 12.1.2 can be Deinstalled in two ways :

* GUI mode

* Silent Mode 

- For GUI mode go to " ORACLE_HOME\oui\bin " directory and run deinstall script.

- For Silent mode use the following command :

Go to " ORACLE_HOME\oui\bin " directory

./deinstall.sh -silent -response <deinstaller_response_file> 

- The deinstaller does not remove the JDK or any user-created data such as WebLogic domains or custom application data. Only the components that were installed by the installation program are removed by the deinstaller. 

- Make sure you have stopped all the servers / processes running before starting the DeInstaller.

In this post we will see how to DeInstall Oracle Weblogic Server 12.1.2.0.0.

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Steps to create a new domain on Weblogic Server 12.1.2.0.0...

Weblogic Server Domain Configuration Wizard - Points to remember :

- Adding " -Djava.security.egd=file:/dev/urandom " in Unix/Linux decreases the amount of time it takes for the Configuration Wizard to create or update a domain.

- Quick Start Configuration Wizard can be used only to configure the various sample domains, such as MedRec and the Examples Server, in your WebLogic Server installation.

- You can start Quick Start Configuration Wizard in two ways :

1. Select the Automatically Launch Quick Start Configuration Wizard option on the Installation Complete screen of the WebLogic Server installer.

2. Run the config.cmd / config.sh script located in ORACLE_HOME/oracle_common/common/bin as follows : " config.cmd -target=config-oneclick " in windows and " config.sh -target=config-oneclick " in Linux.

- Prior to manually running the Configuration Wizard in Quick Start mode, you must set the CONFIG_JVM_ARGS environment variable to specify the full path and JAR file name for each template that you want to use for the domain.

- To set CONFIG_JVM_ARGS on a Windows system:

set CONFIG_JVM_ARGS="-DuserTemplates=C:/Oracle/Middleware/wlserver/common/
templates/wls/wls.jar,C:/Oracle/Middleware/wlserver/common/templates/
wls/wls_webservice_jaxws.jar"

- To set CONFIG_JVM_ARGS on a UNIX:

export CONFIG_JVM_ARGS="-DuserTemplates=/Oracle/Middleware/wlserver/common/
templates/wls/wls.jar,/Oracle/Middleware/wlserver/common/templates/
wls/wls_webservice_jaxws.jar"

- Domain can be created using GUI mode or using WLST.

- There is silent mode installation only for WLS 12.1.2 installation and not for WLS 12.1.2 domain creation.

- Nodemanager can now be configured in domain configuration wizard.

In this post we will see how to create a new Weblogic Server domain using DomainConfigurationWizard.

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Thursday Aug 15, 2013

Steps to install Oracle Weblogic Server 12.1.2.0.0...

What's new in Weblogic Server 12.1.2.0.0 :


- JDK is no longer bundled with Weblogic Server Installers

- There are two types of installers :

1. generic installers
2. zip distribution ( intended for development use only ) Remember - this is not patchable..!!

- New GUI ( Graphical User Interface )

- No console mode installation for weblogic.

- SmartUpdate / bsu is deprecated. We need to use OPatch to install patches from now on.

 - Nodemanager can now be configured at domain level / host(machine) level.

- You can install Weblogic Server in silent mode, but there is no option to create a domain using silent mode.

- WLS installer GUI works fine in Unix environment when connected via VNC, however there are few issues seen when using other third party X-Windows clients. 

- Only 64bit machines are supported with WLS 12.1.2.

- WLS 12.1.2 is certified for use only with JDK 1.7

- Server Templates and Dynamic Clusters are introduced in this release. 

and many more..... 

In this post we will see how to install Weblogic Server 12.1.2.0.0. 

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Saturday Jul 20, 2013

Steps to configure Kerberos / SPNEGO / NTLM authentication with Weblogic Server :

What is Kerberos ? 

Kerberos is a computer network authentication protocol which works on the basis of "tickets" to allow nodes communicating over a non-secure network to prove their identity to one another in a secure manner.

It is primarily a client–server model and it provides mutual authentication—both the user and the server verify each other's identity. Kerberos protocol messages are protected against eavesdropping and replay attacks.

The Kerberos protocol name is based on the three- headed dog figure from Greek mythology known as Kerberos.

The three heads of Kerberos comprise the Key Distribution Center (KDC), the client user and the server with the desired service to access. 

The KDC is installed as part of the domain controller and performs two service functions: the Authentication Service (AS) and the Ticket-Granting Service (TGS).

In this post we will see how to configure Single sign-on (SSO) using Kerberos in Weblogic Server. 

[Read More]
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