Remote Login Protocols+ FOR loop

Good Morning Students

The Google meet id for today is:

meet.google.com/eip-pshh-sra

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By the end of the session, you will be able to:

• understand the purpose of remote login and file transfer protocols
• SSH
• SFTP AND SCP
• FTP
• TELNET
• Define the concept of remote login

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REMOTE LOGIN AND FILE TRANSFER PROTOCOLS

1. SECURE SHELL (SSH)

• It is a security protocol
• developed in the mid- 1990s by Helsinki University researcher Tatu Yionen.
• used to log into a remote machine or server and execute command.
• provides an encrypted session for 
• transferring files and 
• executing server programs
• functions as a secure client/server connection for applications
• supports variety of authentication methods
• widely used on all platforms in both
• free and
• paid forms

2. SCP and SFTP

• SCP- SECURE COPY PROTOCOL
• SFTP- SECURE FILE TRANSFER PROTOCOL/ SSH FILE TRANSFER PROTOCOL
• Both used for secure File Transfer 
• SFTP uses only one connection and encrypts both authentication information and data files being transferred.
• it provides two methods for authenticating connections
• The user ID and password are encypted giving it a major security advantage over FTP

3. FILE TRANSFER PROTOCOL (FTP)

• Used during transmission of files over a computer network
• It is a standard that controls the transfer of files between two computers in a network.
• This does not allow any kind of communication between the computers.
• solely dedicated to sending files in streams of bits and the size of file.
• Transfer of files takes place between an FTP server and an FTP client
• The process of transferring a file from a client to server is called UPLOADING
• The process of transferring a file from a server to a client is called DOWNLOADING

4. TELNET

• Is a network protocol that allows a user on one computer to log into another computer that is a part of the same network.
• allows a user at a terminal or PC to login to a remote computer and run a program 
• It is a common utility in the TCP/IP protocol suite
• It is not secure and transfers commands in the clear
• Secure Shell (SSH)  provides an encrypted alternative to Telnet.
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5. REMOTE ACCESS

• Remote login is the ability to login to a computer or network within  an organization from an external location.
• Remote access is typically done via
• a connection to the internet or
• by dialing directly via an analog modern.

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Write a program in Python to print all even numbers till 10

# PROGRAM TO PRINT EVEN NUMBERS BETWEEN 2-10

for num in range(2,11,2):

      print(num)


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Write a program in Python to print all odd numbers till 10

# PROGRAM TO PRINT ODD NUMBERS BETWEEN 1-10

for num in range(1,11,2):

      print(num)

----------------------------------------------------------------------- Write a program in Python to print all multiples of 5 between 5 to 50.

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