Logging remotely open ssh
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SSH is a program that connects computers and encrypts communication between them. It installs via "sudo apt-get install ssh" and enables remote access when configured properly in the sshd_config file. SSH uses public/private key pairs for authentication, with the private key remaining only with the user and the public key at the server to encrypt data only readable by the private key holder. Example SSH client software includes Putty and Tera Term. While Telnet also allows remote access, it does not encrypt communication like SSH does.
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- 2. Tools for remote control of and transfer of data between , networked computers called open ssh.
- 3. SSH – Ssh Is a program that connects your computer with another computer, and encrypts the communication while doing so . – Unable to decode what is sent between computer .
- 4. Enable SSH on machine – Install ssh ( sudo apt-get install ssh ) – Ssh status ( sudo service ssh status ) – Edit ssh config file ( sudo nano /etc/ssh/sshd_config ) – Reload ssh ( sudo service ssh restart )
- 5. SSH KEY – Private key A private key remains ( only ) with the user. The possession of this key is proof of the user’s identity. Only a user in possession of a private key that corresponds to the public key at the server will be able to authenticate successfully . – Public key A public key that is copied to the ssh server. anyone copy the of the public key can encrypt data which can then only be read by the person who holds the corresponding private key.
- 7. Example of software – Putty – Tera term
- 8. TELNET – telnet is a user command and an underlying tcp/ip protocol for accessing remote computers. – AN ADMINISTRATOR OR ANOTHER USER CAN ACCESS SOMEONE ELSE’S COMPUTER REMOTELY. – ON THE WEB ,HTTP AND FTP PROTOCOL ALLOW TO REQUEST SPECIFIC FILE FROM REMOTE COMPUTERS, BUT NOT TO ACTUALLY BE LOGGED ON AS USER OF THAT COMPUTER. – LOGGED ON AS A REGULAR CUSTOMER WITH WHATEVER PIVILEGES YOU MAY HAVE BEEN GRANTED TO THE SPECIFIC APPLICATION AND DATA .
- 9. – SSH IS ON PORT 22 – TELNET IS ON PORT 23