Tag Archives: public key

Howto Login to servers using SSH keys authentication

Using public key authentication is far more secure and smart way to manage server authentication. And it is quite easy to implement and use. Fortunately, unix/linux terminals allow users to create public/private SSH keys combination that can be used to authenticate and login to servers without any hassle.

The traditional SSH authentication using the combination of username/password is good but really not that secure anymore. The passwords can be guessed or even broken using brute force attack. At times even a compromised terminal can give away the passwords to hackers.

This is the first article in the series on “Systems Security”. The complete list of articles in the System Security series are listed below.

  1. How to setup SSH keys based authentication (current article)
  2. How to disable password based authentication
  3. How to setup UFW Firewall

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