Weblogic Server
1. Weblogic server is a java j2EE based application server like other application servers exist in the market are websphere, jboss, tomcat etc, java j2EE based means it's completely build on the latest java J2EE standards, and application server you can say a middleware component or software which hosts or runs your applications, middleware because it's exist at the mid layer between front end ( your browser like IE, firefox, chrome etc ) and backend database, like below
FRONT END ( IE, CHROME ETC ) =====> APPLICATION SERVER ( HOSTS/RUN YOUR APPLICATION ) =====> DATABASE
2. Above architecture means, browser will access your application hosted on application server, and application will contact back end database of rest of the configurations or database related operations.
3. Apart from application server functionality, it has the capability of a strong web server also. it mean you can used weblogic server as an application server as well as web server just like apache, iis etc.
4. So in whole, as a application server you can deploy your java j2ee based applications on weblogic server to get lots of application server benefits and features as well as deploy web applications to use it as a web server also.
5. Difference between an application server and web server is, A Web server you can say is a computer program or software that serves content, such as Web pages ( static/dynamic ), using the Hypertext Transfer Protocol (HTTP), over the World Wide Web but an application server is much more than serving Static/Dynamic Web pages, It provides Infrastructure or features for large enterprise application like better performance tuning options, advance more secure security options, advance and latest technology supports, maintainability, scalability, high availability etc which a web server doesn't provides.
Web Logic Server Installation Steps on Oracle Linux 64 bit (Console mode) :
1. Before executing Weblogic installation steps make sure that java is installed on the server. Also, set the JAVA_HOME environment variable (It will give the path of the JDK which will be used ).
2. In order to know which JDK is to be installed please download the Oracle certification matrix which is available free for download. You can search it in google.
3. You can see the below screen shots to confirm whether JDK is installed on your machine or not. If not you need to proceed with JDK installation first
4. Once you are done with JDK installation you can start with Web Logic server installation .
5. For weblogic installation first, you need to change the directory to homes_stage which contains wls1036_generic.jar file.
12. At this point, It will ask you to select the JDK version you want if the required version is selected Enter Next and Continue else change the JDK. The x mark within the bracket indicates the selected version. Since we have already set the JAVA_HOME variable the correct JDK version will be selected by default.
13. Next you have to Choose Product Installation Directories for Weblogic Server and Oracle Coherence, Enter Next to go with default path
14. Enter Next to install the listed Products and JDKs.
9. Now configure the Administrator user name and password. But the default username is weblogic which we will keep the same.But the password is null, so enter index number 2 to change the password. We will enter the password as weblogic1
7. Next it will ask you to enter the Weblogic username and password in order to Start the web logic server: Enter weblogic as username and weblogic1 as password which we had already set during domain creation .
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