Welcome to the module in which we'll discuss how to design computer networks.
We'll consider how to close the gap between security and functionality.
In previous modules we took quite some time to show that security and functionality cannot be in conflict
with each other.
You should never try to introduce a security policy that would in any way inconvenience users in their
daily work.
Otherwise users will quite consciously ignore such a policy.
Thus the actual level of security of the system will be lower than it should be.
In this module we will show that sudden netting can improve the security of the whole network
Moreover the ways to minimize the area that can be affected by an attack can reduce potential losses
will be analyzed.
Also we'll see how to apply sudden ending in the case of IP version 4 addresses the CD-R addressing
and if there are any differences in the sixth version of this protocol.
Then we will shortly discuss the differences between IP version 6 and IP version for
next we will explore the subject of a special subnet called the demilitarized zone.
It's a virtual area in which you can place high risk computers or hosts
towards the end we will examine how network services influence the overall security of the system.
Services such as subsetting that is routing with the use of manageable switches in the second layer
of the OSA model will be briefly discussed.
We will scrutinize the mechanisms behind the IP Essec a secure Internet Protocol and evaluate the protection
it offers.
We will also get acquainted with the address translation service proxy servers and remote access services.
I hope you'll enjoy this part of the seminar.