Chapter2 Network Admin

7/25/2019 Chapter2 Network Admin

1/22

Network Management

Cisco Networking Academy

Chapter 2


2/22

Documentation Cut sheet diagrams

diagrams that indicate the path of the

physical wiring layout; the type of cable the length of each cable

the type of termination for the cable physical location of each wall plate or

patch panel labeling scheme for easy identification

of each wire.


3/22

Documentation Tools Microsoft Visio

Physical layout (!" #ayers $ % 2&

#ogical #ayout (!" #ayer '&

low Charting

MD % "D planning and layout

Network ser)ices % applicationstructure (!" layers *+,&

Auto disco)ery of network topologies


4/22

Visio Diagraming

De)ices

Topology

Data low

Ethernet

Workstation #1

Workstation #2

Server

aser printer

!outer

"nternet


5/22

MD % "D #ayouts Documentation will

include Map of location

physical layout of rackmounts

auiliary e$uipment% andservers

patch panel labels toidentify cable terminations.

"dentification andconfiguration details of alle$uipment located in thedistribution facilityCreated with Microsoft Visio 2---


6/22

!er)er % .orkstation

Documentation /ach computer should 0e in)entoried and

the following attri0utes should 0e logged make and model of computer &serial number%

purchase date and warranty information hard drives% floppy drives% '(')*'+!,- drive etwork% sound & other peripheral cards amount of !/- "!0% '-/ and ase memory address config

physical location% user% and network identification " address -/* address Subnet 3opology in this document.

TIPTools likemsinfo'21eeon .indows

3 can helpyou o0tainthisinformation1


7/22

!oftware con4gurations Maintaining a list of current software

in use is important for these reasons Applications 0eing used may a5ect the

network performance and design "ncreases a0ility to maintain and

trou0leshoot pro0lems Allows your organi6ation to maintain

license compliance


8/22

Maintenance records

/ach time you con4gure a networkde)ice you should keep a record of

it 7pdates your in)entory

Allows you to trou0leshoot a gi)en

con4guration8 noting changes Allows you to track time spent on a

particular de)ice or issue


9/22

!ecurity measures A list of user rights and9or

permissions

A logical topology of which networksconnect where Physical security

#ogical (software or rule 0ased& security AC#s Packet iltering through 4rewalls


10/22

7ser policies .ho gets what8 where and when Administrator implement organi6ational

policies regarding Access to data and resources 7sernames % Password standards

"nformation should 0e included in

employees (users& documentation Policies :Accepta0le 7se; statement


11/22

Network !ecurity

Measures -ake the network as secure as possible against

unauthori4ed access

3his is done by establishing security policies minimum password length maimum password age uni$ue passwords !estricted time access by day and)or time

"nforming users of the company5s networkpolicies

Establishing physical security of data stores


12/22

Data 0ackup and reco)eryTape or ptical 0ackup media

Allows for data reco)ery

5 site storage

7ninterrupti0le Power !upplies(7P!& Protects against power loss


13/22

Data 0ackups (tape and

disk& ull 0ackup

Copies e)ery speci4ed data source

"ncremental Copies only data that has changed sinceany0ackup (archi)e 0it is cleared&

Di5erential Copies only data that has changed since

last full0ackup (archi)e 0it is notcleared&


14/22


15/22

Physical % /n)ironmental

Damage

!tatic /lectricity

Contaminents Dusk

!mokeTemperature and

=umidity


16/22

Computer Viruses Virus

Eecutable program that 9infects9

computer files ,ften sent over the "nternet as Email

attachments. / :3roan


17/22

>aselining /sta0lish a 0aseline

performance for your

network 7sed to monitor changes

topology or de)ice location

TIP7se !ni5er8.indows NTNetMon or

lukes#ANMeter toesta0lish0aselines


18/22

Peer to Peer Networking /asy to implement

"nepensi)e

Does not re?uire dedicated ser)er No ser)er software re?uired

No centrali6ed administration or user

account data0ase May 0e more di@cult to administer 7sers ha)e multiple usernames and

passwords


19/22

Client9!er)er Networking Centrali6ed admin and user

account data0ase

More epensi)e than Peer to Peer Dedicated ser)er and software

Dedicated Admin

!ingle points of failure


20/22

Network control and

management >ser rights are set by an administrator to

permit or deny access to particular resource

on a network ?roups are a logical grouping of users on the

network.

rofiles will allow a user or admin to

customi4e the user interface on a computer

and then be able to use that profile at any

computer they connect to the network


21/22

!cienti4c Method for

trou0leshooting "dentify network)user problem. ?ather data about

network)user problem. /naly4e data to come up with

a possible solution to theproblem.

"mplement solution to network

to attempt correction to thesystem. "f the problem isn5t resolved%

undo previous changes andmodify data.

?o to step 8


22/22

The /nd

Chapter2 Network Admin

Documents

Transcript of Chapter2 Network Admin