Re: Session layer in OSI and TCP/IP

[Charlie Clark <charlie () funkymunkey co uk>]

I believe the only section you have wrong is F :)
 
Charlie

On 15 July 2010 at 06:22 Naruto Uzumaki <ageofnaruto () gmail com> wrote:

> @David Gillett, @Nikun, @Sandeep Thakur
> Thanks for the response guys. I really appreciate it.
>
> However, just to ensure that I've "got" it, I'm posting what I've
> understood. Kindly tell me if I'm correct or not. This is nothing just
> what I posted in my earlier query.
>
> A) TCP/IP is the actual protocol suite used mostly in the Internet.
>
> B) OSI is a reference model, as such various protocol suites have been
> created based on OSI.
>
> C) These protocol suites like TCP/IP etc. don't comply exactly to OSI
> and therefore functionalities of layers in these protocol suites don't
> strictly adhere to the functionalities of layers specified in the OSI
> model.
>
> D) This follows if the above part C is correct.
>   Session layer session/connection is different from transport layer
> connection and as such ***3-way handshake and 3-way connection
> termination was never a part of session layer either in OSI and
> definitely not in TCP/IP.***
> So connection/session establishment in session layer is from different
> connection establishment in transport layer.
>
> E) Session layer is rarely used.But when used, the session layer uses
> the transport layer connection to establish a session, i.e firstly a
> TCP connection is established and then a session layer session.
>
> F) I think I might be wrong with part D and E :)
>
> It'll be very useful if answers can be provided on part-by-part
> basis--quoting one of above part and answering it. I understand better
> this way.
>
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------------------------------------------------------------------------
Securing Apache Web Server with thawte Digital Certificate
In this guide we examine the importance of Apache-SSL and who needs an SSL certificate.  We look at how SSL works, how 
it benefits your company and how your customers can tell if a site is secure. You will find out how to test, purchase, 
install and use a thawte Digital Certificate on your Apache web server. Throughout, best practices for set-up are 
highlighted to help you ensure efficient ongoing management of your encryption keys and digital certificates.

http://www.dinclinx.com/Redirect.aspx?36;4175;25;1371;0;5;946;e13b6be442f727d1
------------------------------------------------------------------------