Configure “No Password SSH Keys Authentication” with PuTTY on Linux Servers

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Matei Cezar

I'am a computer addicted guy, a fan of open source and linux based system software, have about 4 years experience with Linux distributions desktop, servers and bash scripting.

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16 Responses

  1. helwi says:

    Dear Mr,

    I have problem with port ssh, I can`t change the default port to custom port. I use 9899 for my custom port. Can you advice me step by step, because I follow your tutorial step by step to change port on sshd_config and also enabled port in selinux but its still not work.

    When I try to connect using the port from other computer in the same network the error connection refused for port 22. When I try add comment -p 9899 in the end command are still refused.

    Can you advice me?

    Tthanks in advanced.
    regard

    • Ravi Saive says:

      @Helwi,

      Please allow the port in Firewall also, if you are using any firewall like iptables or firewalld.

  2. Matei Cezar says:

    Remove the public key from authorized_keys and the private key from Putty configuration.

  3. andy says:

    how do i revoke this so i can go back to manually inputting passwd

    thanks

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