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7/25/2019 Chapter2 Network Admin
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Network Management
Cisco Networking Academy
Chapter 2
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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.
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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
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Visio Diagraming
De)ices
Topology
Data low
Ethernet
Workstation #1
Workstation #2
Server
aser printer
!outer
"nternet
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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---
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!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
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!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
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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
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!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
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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
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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
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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
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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&
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Physical % /n)ironmental
Damage
!tatic /lectricity
Contaminents Dusk
!mokeTemperature and
=umidity
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Computer Viruses Virus
Eecutable program that 9infects9
computer files ,ften sent over the "nternet as Email
attachments. / :3roan
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>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
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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
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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
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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
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!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
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The /nd