Computers and Technology, 19.03.2020 01:05 cxttiemsp021

Create a security management policy that addresses the management and the separation of duties throughout the seven domains of a typical IT infrastructure. You are to define what the information systems security responsibility is for each of the seven domains of a typical IT infrastructure?

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Seven Domains of IT Infrastructure Seven domains can be found in a typical IT infrastructure. They are as follows: User Domain, Workstation Domain, LAN Domain, LAN-to-WAN Domain, Remote Access Domain, WAN Domain, and System/Application Domain.

Explanation:

User Domain : The User Domain covers all theusers (of any rank) that haveaccess to the other six domains.

RISKS:

User can destroy data in application(intentionally or not) and delete all User can insert infected CD or USBflash drive into the work computer

Workstation Domain : A computer of an individual user where the production takes place

RISKS:

The workstation’s OS can have a known software vulnerability thatallows a hacker to connect remotelyand steal data. A workstation’s hard drive can fail causing lost data

LAN Domain : Contains all of the workstations,hubs, switches, and routers. TheLAN is a trusted zone

RISKS:

A worm can spread through the LANand infect all computers in it. LAN server OS can have a knownsoftware vulnerability.

WAN Domain : Stands for Wide Area Network and consists of the Internet and semi-private lines

RISKS:

Service provider can have a major network outage. Server can receive a DOS or DDOS attack. A FTP server can allow anonymously uploaded illegal software

LAN / WAN Domain : The boundary between the trusted and un-trusted zones.The zones are filtered with a firewall

RISKS:

Weak ingress/egress traffic filteringcan degrade performance. A firewall with unnecessary portsopen can allow access from the Internet

System / Application Storage Domain : This domain is made up of user-accessed servers suchas email and database

RISKS:

A fire can destroy primary data A DOS attack can cripple the organization’s email

Remote Access Domain :The domain in which a mobileuser can access the local network remotely, usually through a VPN

RISKS:

Communication circuit outage candeny connection. Remote communication from officecan be unsecured. VPN tunneling between remotecomputer and ingress/egress routercan be hacked

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