Download - web protocols
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What is a Protocol?
The set of rules and regulations for communicationa Network. Computers on a Network cannot
communicate with other computers unless they ar
using the same protocol.
What is a Port? In computer networking, a port number is pa
addressing information used to identify the sand receivers of messages.
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List of Network Protocols
TCP/IP (Trancmistion Control Protocol)
HTML (Hyper Text Markup language)
HTTP (Hyper text transfer Protocol)
FTP (File transfer protocol)
SMTP (Simple Mail Tranfer Protocol)
IMAP (Internet Message Access Protocol)
MIME (Multipurpose Internet Mail Protocol)
POP (Post office protocol)
SSH (Secure socket layer)
Telnet
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TCP/IP Protocol?
Transmission Control Protocol/Internet Pr
Part of a set of protocols known as the InProtocol Suite.
The most commonly used, routable, netw
protocol. TCP transmits data and IP refer
addressing.Necessary for Internet communication. A
protocols below (except DNS) occur ove
TCP/IP.
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HTML Protocol
Hypertext Markup Language. Web page
that defines how a page appears in the browser.
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HTTP Protocol
Hypertext Transfer Protocol. Connects lo
browser to a web server. typically using port 80.
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FTP Protocol
FTP stands for File Transfer Protocol.
Commonly used to transfer files across the internet web server and Windows hosts.
FTP Offers Two Important Functionalities.
(1) File Downloading :- Port no is 21
(2) File Uploading :- Port no is 20
File Dowloading is a Process of coyping a file from
computer to your computer.
File Uploading is a process of sending a file from yocomputer to remoute computer.
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SMTP Protocol
Simple Mail Transfer Protocol. Port No is 2
SMTP sents email to one or more recipielisted in exam objectives, but of equal
importance, is POP3 Post Office Protoc
This protocol downloads inbound email
messages.
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IMAP Protocol
Internet Message Access Protocol. Port N
Used for accessing email on a remote sefrom a local client.
Where as POP3 downloads email messa
IMAP instantly accesses email stored on
server.
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MIME Protocol
As You know now that SMTP is useful to send m
only with ASCII characters.
If you wish to extend the capability of SMTP for sound,picture,vedio clips or program files withemail,MIME protocol Should be used.
When you wish to send non-text data with ema
helps you to encode this data in to ASCII charadue to that,email can be sent to the mail serveSMTP
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POP Protocol
POP Stands for Post Office Protocol. Port
The POP define how mail client like Micro
Outlook can retrieve email messages fro
mail server.
It has various versions like POP,POP2(port
109),POP(port 110) among tham POP3 is lone.
Using POP email client can save messag
local computer.
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SSH Protocol
Secure Shell.Port no is 22
Secure Shell (SSH) is a cryptographic ne
protocol for secure data communicatio
SSH uses public-key cryptography to
authenticate the remote computer and
to authenticate the user.
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Telnet Protocol
Telnet is a Teletype Network.its port No is
Protocol used in the command-line tool
same name.
Useful for remote administration of serve
clients, and network devices such as rou
Communicates in unsecured plain text.
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Thank You