Small Help

[SYS ADMIN_7]

Hi Guys

Silly questions .. Hope I can get the sollutions..

1)What is the difference between Authentication, Authorization, and Personalization. Please give some brief

2)What exactly the meaning of CI(Central Instance) in case of DBs. How it differs from Application Service .


Please help

Rgds
Suraj

[Bharat Katkar]

Suraj i can answer your first question:

1. TO authenticate is to verify or to do validations

2. To Authorize is to Approve or permit

3. To personalize is to customize the environment user specific.

Hope that helps.
Regards,

[SYS ADMIN_7]

Hi Bharat

Thnaks for the same


1. TO authenticate is to verify or to do validations... Is this same like validating the password through files/NIS/LDAp like stuffs

2. To Authorize is to Approve or permit--
Is this is like after getting the authontication you are performing some tasks on this

3. To personalize is to customize the environment user specific..... Thanks I got this one


Regards,
Suraj

[Michael Selvesteen_2]

Authentication

Authentication is the process of determining whether someone or something is, in fact, who or what it is declared to be. In private and public computer networks (including the Internet), authentication is commonly done through the use of logon passwords. Knowledge of the password is assumed to guarantee that the user is authentic.

Authorization

The process of determining, by evaluating applicable access control information, whether a subject is allowed to have the specified types of access to a particular resource. Usually, authorization is in the context of authentication. Once a subject is authenticated, it may be authorized to perform different types of access.

Personalization

The process of matching categorized content with different end users based on business rules. This personalization may be a process occurs upon page request to a Webserver and is handled by either

(a) a general application server
(b) a specialized one-to-one application server
(c) a specific personalization engine.

For central instances and application service (more likely releated to SAP terms) you should go thru the following thread

http://listserv.sap.com/pipermail/linux.general/2002-June/002542.html


Hope this helps

[SYS ADMIN_7]

Hi Michael

Thanks for your answer..

But the link you provided doesnot give any description about the CI or Application Service .

Hope still more answes may come

Rgds
Suraj

[R. Sri Ram Kishore_1 · Accepted solution]

Hi Suraj,

The application server:
----------------------
While SAP uses the generic term application server to define a computer that receives connections from SAP clients, the actual connections are managed by SAP dialog servers.

A dialog instance is a software program that is running the SAP kernel (similar to an Oracle instance), and it is the job of the dialog instance to execute the ABAP programs and manage the requests for data and services. While there is generally a one-to-one mapping between an application server and a dialog instance, it is possible to have more than one dialog instance on an application server.

The central instance
--------------------
The central instance is a concept that is unique to SAP. The central instance is a combination of hardware and software. It contains a physical server (the application server) and numerous software components, including a message server, a database gateway (a pre-established connection between SAP and Oracle--or another database), and various update, enqueue, dialog, and spool facility software. In most generic SAP architectures, there are numerous application servers but only a single central instance. However, in addition to managing the SAP interfaces, the central instance can also serve as an application server.

Bear in mind that SAP is very flexible, and there are many different ways to configure an SAP architecture to meet your business needs. However, most companies that implement SAP wisely choose to alter their business practices to accommodate SAP. By avoiding customization of its SAP application, a company can more easily upgrade its SAP software.
...

Read more at: http://www.oreilly.com/catalog/sapadm/chapter/ch01.html

HTH.

Regards,
Sri Ram

[R. Sri Ram Kishore_1]

Hi,

Regarding the differences between Authentication and Authorization, found these nice write-ups:
http://www.acm.uiuc.edu/workshops/security/auth.html
http://www.iis-resources.com/modules/wfsection/print.php?articleid=7

Personalization:
http://www.google.com/search?hl=en&lr=&ie=UTF-8&oi=defmore&q=define:Personalization

HTH.

Regards,
Sri Ram

[SYS ADMIN_7]

Hi RamKishore

Thanks for the Link

This is what exacly I needed

Rgds
Suraj