Security Basics mailing list archives
RE: Session layer in OSI and TCP/IP
From: "David Gillett" <gillettdavid () fhda edu>
Date: Mon, 19 Jul 2010 11:26:24 -0700
-----Original Message----- From: Naruto Uzumaki [mailto:ageofnaruto () gmail com] Sent: Friday, July 16, 2010 13:58 I do have more questions, but it's 2:30 AM so I can only think of only one right now. What "exactly" is a SSL session? I mean how do you view it?
From what I've gathered, I think it's also called a 'dialogue'--
simplex, full duplex and half-duplex. ---- Looking at reference models, one might imagine that the stack of layers over a given channel is very static. But on top of a transport layer you could have multiple sessions, each encapsulating its own presentation an application traffic (if those are present). And different sessions might contain totally different kinds of presentations.... Now start looking at VPNs, where we effectively erect a new stack, from the network layer on up, on top of a transport layer. I remember when that made my head hurt for a while. I don't understand why you're bringing simplex and duplex into this -- They're generally encountered at the physical and/or datalink layers. A simplex connection carries signals in one direction only; duplex in both directions, but half-duplex only in one direction at a time. David Gillett ------------------------------------------------------------------------ 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 ------------------------------------------------------------------------
Current thread:
- Re: Session layer in OSI and TCP/IP, (continued)
- Re: Session layer in OSI and TCP/IP sandthakur (Jul 14)
- Re: Session layer in OSI and TCP/IP Naruto Uzumaki (Jul 16)
- Re: Session layer in OSI and TCP/IP dwg5901 (Jul 19)
- Re: Session layer in OSI and TCP/IP Naruto Uzumaki (Jul 19)
- Re: Session layer in OSI and TCP/IP Naruto Uzumaki (Jul 19)
- Re: Session layer in OSI and TCP/IP Andy Colson (Jul 19)
- Re: Session layer in OSI and TCP/IP orlin (Jul 19)
- Re: Session layer in OSI and TCP/IP Naruto Uzumaki (Jul 16)
- Re: Session layer in OSI and TCP/IP sandthakur (Jul 14)
- Re: Session layer in OSI and TCP/IP Kurt Buff (Jul 19)
- Re: Session layer in OSI and TCP/IP Charlie Clark (Jul 19)
- Re: Session layer in OSI and TCP/IP Naruto Uzumaki (Jul 19)
- RE: Session layer in OSI and TCP/IP David Gillett (Jul 19)