WEEK 1 (IT SECURITY)

LECTURE 1 (13 July 2009)

In this lecture i learn about the introduction to information security. This lecture cover about what is the information security, security area, the architecture of security, security principle, security policy, security attacks/threats, methods of defense, security services and about security mechanisms.

As we know information security is the protection of data against unauthorized access. Programs and data can be secured by issuing passwords and digital certificates to authorized users. That has three security areas which is detection (tool that use such as internet scanner), prevention (tool that use for example proxy or firewall) and recovery (tool that use is cryptography techniques). I also learn about principles of security. Four principle of security are confidentiality, integrity, availability and non repudiation. In security attacks/threats that have two type of attacks which is passive attacks and active attacks. A passive attack means it just can monitor and can’t change any data. An active attack means it involve some modification of the data.

In the security services that has five categories and 14 specific services that provided. The five categories are authentication, access control, data confidentiality, data integrity and non-repudiation. In last part of this lecture i learn about the security mechanisms. Security mechanisms divided into two classes which is specific security mechanisms and pervasive security mechanisms. As the conclusion of this lecture information security is very important for our computer sake.

LAB 1 (14 July 2009)

This lab cover about VMware means virtual machine software. The name given to various programming language interpreters. VMware allows multiple copies of the same operating system or several different operating systems to run in the same x86-based machine. Each virtual machine is like a "machine within the machine" and functions as if it owned the entire computer. All virtual machines run simultaneously.

VMware is program which runs under Linux (or NT) and emulates the hardware of a standard PC to provide one or more virtual machines. Many operating systems can be installed on these virtual machines so that it is possible to run, for example, Windows 95 inside a standard X Window under Linux. It is even possible to run a complete Linux installation (maybe a different version) inside another window, at the same time.

It is some of the advantages of using VMware which is a normal installation of a Microsoft operating system require a long manual process to configure the system to the specific hardware of the machine. This means that the same installation cannot be used for another machine which usually has different hardware. Since VMware emulates the same set of virtual devices on any machine, a single operating system image can be used.