Transcript A GLANCE TO NETWORK BRIEFLY 12 A GLANCE TO NETWORK

METEOROLOGICAL TELECOMMUNICATION
AND METCAP
A GLANCE TO NETWORK BRIEFLY
Ömer Hüdai ALBAYRAK
2010
ALANYA
A GLANCE TO NETWORK BRIEFLY
LAN
Metcap user
MSS
HUB
Metcap user
Metcap user
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What is Network
Network is a communication situation between two or more
computers. This communication may be between two computers
in the same office, or between two computers located at
different contries.
If these computers are located in the local area, this network is
called as “Local Area Network” (LAN). For creating this network
there should be ethernet card and necessary network cables.
According to number of systems (computers, printers, etc.) some
additional instruments may be needed (Hub, Switch)
The basic utility of LAN is data sharing feature. You can use this
feature in many ways. For example; whole personnel can use only
one printer, can communicate with each other with a computer,
one application may be used by more than one personnel at the
same time period, etc.
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TCP (Transmission Control Protocol) / IP (Internet Protocol)
In a network, All instruments must speak the same language to
understand each ather. We call this language as Protocol.
For realizing a communication, both side must accept and apply
the requested protocol. TCP/IP is a family of protocols which
contains more than one hundred information communication
protocols. Since the most important members of this family are
TCP (Transmission Control Protocol) and IP (Internet Protocol),
this protocol is called as TCP/IP Protocol.
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TCP/IP Address
In a network, all instruments must have and Adress to understand
each other correctly. By loading TCP/IP protocol to a computer, an
address is allocated for that computer to be defined.
IP : 194.27.253.100
“11000010.00011011.11111101.01100100”
in binary form.
Computers can not have the same IP addresses.
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The Simple Programs that Used for TCP/IP
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IPCONFIG
PING
NETSTAT
TRACERT
ROUTE
NSLOOKUP
ARP
Windows / Start / Run / cmd
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IPCONFIG
IPCONFIG command gives us TCP/IP settings. For achieving the
whole information you should use “ipconfig /all” command.
For getting the possible commands which you can use with
“ipconfig” you should use “ipconfig ?” command in the same
screen.
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PING
This command is used for controlling the communication
accessibility by sending an echo to another IP address.
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NETSTAT
This command is used for controlling the communication
accessibility by sending an echo to another IP address.
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TRACERT
This command is used for observing the packet’s route which is
sent to receiver. By writing an IP address or a domain name, the
way of sent data packet can be traced. This command also can be
used for determining the speed of the line. The usage of this
command is “tracert –d IP ADDRESS”.
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NSLOOKUP, name server lookup
is a network administration command-line tool available for many
computer operating systems for querying the Domain Name
System (DNS) to obtain domain name or IP address mapping or
for any other specific DNS record.
nslookup IP or nslookup DomainName.
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Route
Route is used to view and modify the IP routing table. Route Print
displays a list of current routes that the host knows. Sample output
from the route command is shown in "Troubleshooting IP Routing"
later in this chapter. Route Add adds routes to the table. Route
Delete removes routes from the host's routing table.
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FTP (File Transfer Protocol)
FTP is used for providing file transfer between two computers.
FTP is one of the firstly developed internet protocols. For
connecting to a computer by FTP the following conditions must be
provided;
The host computer must have a network connection and FTP
Service.
IP Addres of the host computer that you want to connect
The username and the password must be known.
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FTP (File Transfer Protocol)
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LETS DO SOME FTP
Creta a File on your local computer called as c:\YourName.txt
Make an Ftp connection with 10.100.1.241
Username = anonymous
Password = anonymous
Put your file called YourName.txt here
Enter dir command and try to see your file there.
Process Completed Successfully. 
Write bye/quit to end connection.
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THANKS
Q/A
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