1. ➢
Understanding Telnet
–For Using Telnet
–NVT1
–NVT2
–Telnet Data Transaction
–Reference

2. ➢
For using Telnet
➢ When I used Telnet, we must know address of the
host because host indicate a companion. If we do
not know address of the host, we can not contact
companion
➢ When we express, we express to use keyboard.
➢ Word express based on keyboard, it indicate hard-
ware's display.

3. ➢
NVT1
➢ A client and server communicate by using the Tel-
net protocol.
➢ They are called a network virtual terminal (NVT).

4. ➢
NVT2
➢ After the data, typed text in a Telnet session is
compiled , the data is sent.
➢ The data is sent with the host's IP address and
Telnet commands is also sent.

5. ➢
Telnet Data Transaction
➢ Every time the Telnet serv-
er receive the data, the
server processes data and
acts as expected from the
data.
➢ The data must go through
between the server and the
client, any time of transac-
tion. This makes the work
on telnet a bit slower than
Image of telnet data transaction.
working with actual com- Left: the client, Right: the server
puter.

6. ➢
References
The image that the slide2 uses is in
http://www.hw-group.com/products/hw_vsp/images/VSP_NVT_remote_IO.png
The image that the slide3 uses is in
http://www.keithparkerinc.com/photos/uncategorized/2008/05/20/16ps10.jpg
The image that the slide5 uses is
from ITWissen (written in German)
http://www.itwissen.info/definition/lexikon/Telnet-Protokoll-telnet.html