Slide

  • LINUX

    LINUX:In 1969 AT&T made a decision to withdraw Multics and go with GECOS (General Electric Comprehensive Operating Supervisor / System), with AT & T in Bells Lab when Multics was withdrawn some of the programmers named Ken Thompson and Dennis Ritchie decided to rewrite operating system in order to support low cost computer..To Know More

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  • MICROSOFT

    MICROSOFT:Microsoft was established to develop and sell BASIC interpreters for the Altair 8800. It rose to dominate the home computer operating system market with MS-DOS in the mid-1980s,followed by the Microsoft Windows line of operating systems. To Know More

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  • CISCO

    CISCO:During the early 1980s, there was a married couple namely Len and Sandy Bosack who used to work in two different departments of computer located in Stanford University. This couple was facing problem in making their computers communicate with each other To Know More

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SSH configuration

Secure Shell (SSH) is a protocol which provides a secure remote access connection to network devices. Communication between the client and server is encrypted in both SSH version 1 and SSH version 2.





Router#


Router#configure terminal

Router(config)#hostname ITtables

ITtables(config)#enable secret test123

ITtables(config)#ip domain-name www.ittables.com

Note: Following command will generate an SSH key to be used with SSH.


ITtables(config)#crypto key generate rsa

The name for the keys will be: ITtables.www.ittables.com

Choose the size of the key modulus in the range of 360 to 2048 for your
  General Purpose Keys. Choosing a key modulus greater than 512 may take
  a few minutes.

How many bits in the modulus [512]: 1024
% Generating 1024 bit RSA keys, keys will be non-exportable...[OK]

ITtables(config)#line vty 0 4

ITtables(config-line)#password 123test

ITtables(config-line)#transport input ssh

ITtables(config-line)#login

ITtables(config-line)#end

 Verification:



PC>ssh -l ittables 192.168.10.1

Router#ssh -l ittables 192.168.20.1


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