Chapter 7 Notes

Administering a Secure Network

Objectives

¨  List and describe the functions of common network protocols

¨  Explain how network administration principles can be applied

¨  Define the new types of network applications and how they can be secured

Common Network Protocols

¨  Protocols

¡  Rules of conduct and communication

¡  Essential for proper communication between network devices

¨  Transmission Control Protocol/Internet Protocol (TCP/IP)

¡  Most common protocol suite used for local area networks and the Internet

¨  IP

¡  Protocol that functions primarily at Open Systems Interconnection (OSI) Network Layer (Layer 3)

¨  TCP

¡  Transport Layer (Layer 4) protocol

¡  Establishes connections and reliable data transport between devices

¨  TCP/IP uses a four layer architecture

¡  Network Interface, Internet, Transport, Application

More after the Break

Chapter 6

Network Security

Objectives

¨  List the different types of network security devices and explain how they can be used

¨  Define network address translation and network access control

¨  Explain how to enhance security through network design

Security Through Network Devices

¨  Not all applications designed, written with security in mind

¡  Network must provide protection

¨  Networks with weak security invite attackers

¨  Aspects of building a secure network

¡  Network devices

¡  Network technologies

¡  Design of the network itself

More after the break

Chapter 5 Notes

From here on out I am transcribing the power points that Jerry provides.  He's teaching directly off of them.

Host, Application, and Data Security

Objectives

¨  List the steps for securing a host computer

¨  Define application security

¨  Explain how to secure data using loss prevention

Securing the Host

¨  Three important elements to secure

¡  Host (network server or client)

¡  Applications

¡  Data

¨  Securing the host involves:

¡  Protecting the physical device

¡  Securing the operating system software

¡  Using security-based software applications

¡  Monitoring logs

More after the break