DC Assignment RAHULcc

7/30/2019 DC Assignment RAHULcc

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Author Name: Rahul Hosmani Division: A Roll No: 30 USN: 2BV10IS072

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Solution

Solution 1: Windows Platform Remote login

Find out which OS platform is currently installed

To remote login from one node to another [one computer to another];Find out the OS installed in computer where one wants to remote login.

In this case 192.168.20.68,

If it is a Windows Family, like Windows XP, Windows Vista, Windows 7 etc.

One can use REMOTE DESKTOP CONNECTION

Fig.1(Remote Desktop connection of Windows XP)


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Fig.1.1(Remote Desktop connection of Windows XP)

Fig.2(Remote Desktop connection of Windows 7)


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Fig.2.1(Remote Desktop connection of Windows 7)

Before Remotely Logging into computer,one must allow other computers to connect to computer.

To do so,

In Windows XP,

Go to start -> Right Click on My Computer ->Properties

In Remote Tab,


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In Remote Desktop pane, Check Allow users to connect remotely to this computer and

apply it, otherwise you wont be able to remotely login to the computer.

In Windows 7,

Go to start -> Right Click on Computer ->Properties


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Click on Remote Settings,


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In Remote Desktop pane,

Option 1: This option will help one connect from any windows older versions.Check Allow connections from computers running any version of Remote Desktop(less

secure) and apply it, otherwise you wont be able to remotely login to the computer.

Option 2: This option will help one connect from windows 7 and above.

Check Allow connections from computers running Remote Desktop with Network leve

Authentication (more secure) and apply it, otherwise you wont be able to remotely login

to the computer.

Note: Remote Desktop connection is more secure in 7 than it was in XP. So one must

choose an appropriate option.

In my Experiment I chose Option 1, because I was using windows xp and wanted to

connect to windows 7.

Now that the computer is allowed to be remotely accessed, one must open Remote


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Desktop Connection.

In Windows XP,

Start -> All Programs-> Accessories -> Communications-> Remote Desktop connection.

If this is not found then

In Command prompt, type mstsc

In Windows 7,

Start-> in search text field type remote,


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Click on Remote Desktop Connection,

Or just like in XP, In Command prompt, type mstsc.


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Now to find out the IP Address of the computer where one wants to remotely login,

To do so double click on network,


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In Details tab, one can get the IP Address (Client IP Address), used to Remotely connect to

the computer.

Or, in Command Prompt, type ipconfig


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Or, if internet is on, Google whats is my IP

Now, you got the IP address, Insert it into computer field.

Username is the user account present in the computer to be logged on.

After entering these two fields, click on connect.


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This is the remote desktop of the other computer as seen in my computer. One can

minimize the window to see as a window. Or Maximize to use the computer in full screen.

Note:

Only one person can Login to a computer,

If one has remotely logged in to a computer, the other person using the computer will be

logged out. And if we log back in to the computer which is being accessed, the remote

desktop connection will be disconnected.


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Solution 2: non Windows Platform

[BRIEF DESCRIPTION OF TELNET AND SSH;]

[PROCEDURE TO USE NOT DISCUSSED]

Telnet:Telnet is a network protocol used on the Internet orlocal area networks to provide a

bidirectional interactive text-oriented communication facility using a

virtual terminal connection. User data is interspersed in-band with Telnet control

information in an 8-bitbyte oriented data connection over the Transmission Control

Protocol (TCP).

Telnet provided access to a command-line interface (usually, of an operating system) on

a remote host. Most network equipment and operating systems with a TCP/IP

stacksupport a Telnet service for remote configuration (including systems based on

Windows NT). Because of security issues with Telnet, its use for this purpose has waned in

favor of SSH.
http://en.wikipedia.org/wiki/Network_protocolhttp://en.wikipedia.org/wiki/Internethttp://en.wikipedia.org/wiki/Local_Area_Networkhttp://en.wikipedia.org/wiki/Text_terminalhttp://en.wikipedia.org/wiki/In-band_signalinghttp://en.wikipedia.org/wiki/Byte_orientedhttp://en.wikipedia.org/wiki/Transmission_Control_Protocolhttp://en.wikipedia.org/wiki/Transmission_Control_Protocolhttp://en.wikipedia.org/wiki/Command-line_interfacehttp://en.wikipedia.org/wiki/Operating_systemhttp://en.wikipedia.org/wiki/Operating_systemhttp://en.wikipedia.org/wiki/TCP/IP_stackhttp://en.wikipedia.org/wiki/TCP/IP_stackhttp://en.wikipedia.org/wiki/Windows_NThttp://en.wikipedia.org/wiki/Secure_Shellhttp://en.wikipedia.org/wiki/Secure_Shellhttp://en.wikipedia.org/wiki/Windows_NThttp://en.wikipedia.org/wiki/TCP/IP_stackhttp://en.wikipedia.org/wiki/TCP/IP_stackhttp://en.wikipedia.org/wiki/Operating_systemhttp://en.wikipedia.org/wiki/Operating_systemhttp://en.wikipedia.org/wiki/Command-line_interfacehttp://en.wikipedia.org/wiki/Transmission_Control_Protocolhttp://en.wikipedia.org/wiki/Transmission_Control_Protocolhttp://en.wikipedia.org/wiki/Byte_orientedhttp://en.wikipedia.org/wiki/In-band_signalinghttp://en.wikipedia.org/wiki/Text_terminalhttp://en.wikipedia.org/wiki/Local_Area_Networkhttp://en.wikipedia.org/wiki/Internethttp://en.wikipedia.org/wiki/Network_protocol


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SSH:

Secure Shell (SSH) is a cryptographic network protocol for secure data communication,

remote shell services or command execution and other secure network services between

two networked computers that connects, via a secure channel over an insecure

network, a server and a client (running SSH serverand SSH client programs, respectively).

It is best-known application of the protocol is for access to shell accounts on Unix-

like operating systems (it can be used in a similar fashion for accounts on Windows,

though it is not a very popular option due to Remote Desktop Services.

It was designed as a replacement forTelnet and other insecure remote shell protocols

such as the Berkeley rsh, rex protocols, which send information, notably passwords,

in plaintext, rendering them susceptible to interception and disclosure using packet

analysis. The encryption used by SSH is intended to provide confidentiality and integrity of

data over an unsecured network, such as the Internet.

SSH uses public-key cryptography to authenticate the remote computer and allow it to

authenticate the user. Anyone can produce a matching pair of different keys (public

and private). The public key is placed on all computers that must allow access to theowner of the matching private key (the owner keeps the private key secret). While

authentication is based on the private key, the key itself is never transferred through the

network during authentication.

SSH only verifies whether the same person offering the public key also owns the matching

private key. Hence, in all versions of SSH it is important to verify unknown public keys,

i.e. associate the public keys with identities, before accepting them as valid.
http://en.wikipedia.org/wiki/Network_protocolhttp://en.wikipedia.org/wiki/Secure_channelhttp://en.wikipedia.org/wiki/SSH_serverhttp://en.wikipedia.org/wiki/SSH_clienthttp://en.wikipedia.org/wiki/Shell_accounthttp://en.wikipedia.org/wiki/Unix-likehttp://en.wikipedia.org/wiki/Unix-likehttp://en.wikipedia.org/wiki/Microsoft_Windowshttp://en.wikipedia.org/wiki/Remote_Desktop_Serviceshttp://en.wikipedia.org/wiki/Telnethttp://en.wikipedia.org/wiki/Shell_(computing)http://en.wikipedia.org/wiki/Passwordhttp://en.wikipedia.org/wiki/Plaintexthttp://en.wikipedia.org/wiki/Packet_analyzerhttp://en.wikipedia.org/wiki/Packet_analyzerhttp://en.wikipedia.org/wiki/Encryptionhttp://en.wikipedia.org/wiki/Internethttp://en.wikipedia.org/wiki/Public-key_cryptographyhttp://en.wikipedia.org/wiki/Authenticationhttp://en.wikipedia.org/wiki/Public_keyhttp://en.wikipedia.org/wiki/Public-key_cryptography#Associating_public_keys_with_identitieshttp://en.wikipedia.org/wiki/Public-key_cryptography#Associating_public_keys_with_identitieshttp://en.wikipedia.org/wiki/Public_keyhttp://en.wikipedia.org/wiki/Authenticationhttp://en.wikipedia.org/wiki/Public-key_cryptographyhttp://en.wikipedia.org/wiki/Internethttp://en.wikipedia.org/wiki/Encryptionhttp://en.wikipedia.org/wiki/Packet_analyzerhttp://en.wikipedia.org/wiki/Packet_analyzerhttp://en.wikipedia.org/wiki/Plaintexthttp://en.wikipedia.org/wiki/Passwordhttp://en.wikipedia.org/wiki/Shell_(computing)http://en.wikipedia.org/wiki/Telnethttp://en.wikipedia.org/wiki/Remote_Desktop_Serviceshttp://en.wikipedia.org/wiki/Microsoft_Windowshttp://en.wikipedia.org/wiki/Unix-likehttp://en.wikipedia.org/wiki/Unix-likehttp://en.wikipedia.org/wiki/Shell_accounthttp://en.wikipedia.org/wiki/SSH_clienthttp://en.wikipedia.org/wiki/SSH_serverhttp://en.wikipedia.org/wiki/Secure_channelhttp://en.wikipedia.org/wiki/Network_protocol


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Conclusion

One can remote login to any computer remotely, provided the computer is part of the network and is

turned on.

Using Windows Remote Desktop Connection is very easy as compared to SSH or telnet.

IP address can identify a computer in the network, which is used to login to the computer remotely.

The computer which one wants to connect must have a password [for security reasons].

One can also use the computer name to identify the computer in the network [specifically works on

windows remote desktop connection].

Reference

Website Links

http://en.wikipedia.org/wiki/Secure_Shell

http://en.wikipedia.org/wiki/Telnet http://support.microsoft.com/kb/284931

http://windows.microsoft.com/en-IN/windows-vista/Connect-to-another-computer-using-Remote-Desktop-Connection

http://www.wikihow.com/Use-Windows-XP's-Built-in-Remote-Desktop-Utility

http://www.wikihow.com/Use-Remote-Desktop-in-Windows-7
http://en.wikipedia.org/wiki/Secure_Shellhttp://en.wikipedia.org/wiki/Secure_Shellhttp://en.wikipedia.org/wiki/Telnethttp://en.wikipedia.org/wiki/Telnethttp://support.microsoft.com/kb/284931http://support.microsoft.com/kb/284931http://windows.microsoft.com/en-IN/windows-vista/Connect-to-another-computer-using-Remote-Desktop-Connectionhttp://windows.microsoft.com/en-IN/windows-vista/Connect-to-another-computer-using-Remote-Desktop-Connectionhttp://windows.microsoft.com/en-IN/windows-vista/Connect-to-another-computer-using-Remote-Desktop-Connectionhttp://www.wikihow.com/Use-Windows-XP's-Built-in-Remote-Desktop-Utilityhttp://www.wikihow.com/Use-Windows-XP's-Built-in-Remote-Desktop-Utilityhttp://www.wikihow.com/Use-Remote-Desktop-in-Windows-7http://www.wikihow.com/Use-Remote-Desktop-in-Windows-7http://www.wikihow.com/Use-Remote-Desktop-in-Windows-7http://www.wikihow.com/Use-Windows-XP's-Built-in-Remote-Desktop-Utilityhttp://windows.microsoft.com/en-IN/windows-vista/Connect-to-another-computer-using-Remote-Desktop-Connectionhttp://windows.microsoft.com/en-IN/windows-vista/Connect-to-another-computer-using-Remote-Desktop-Connectionhttp://support.microsoft.com/kb/284931http://en.wikipedia.org/wiki/Telnethttp://en.wikipedia.org/wiki/Secure_Shell

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DC Assignment RAHULcc