Linux servers are by default secured by a password. However, this type of authentication is not ideal from a security standpoint because your server can be vulnerable to Brute-Force-, or dictionary attacks. SSH Keys are like a “keycard” to access your server without a password.
Although I'm running PuTTYgen on a Windows machine, the generated keys will be used with our Linux server!

Check out our Blogpost with more details:
[ Ссылка ]

Download PuTTY (includes PuTTY SSH Client, PuTTYgen and Pageant):
[ Ссылка ]

Commands used in this Video:

Checking SSH Version:
ssh -V

Creating the SSH Key directory:
mkdir .ssh

Moving into this directory:
cd .ssh

Creating the authorized_keys File, in which all public keys need to be stored (only one per line!):
nano authorized_keys

Opening the sshd_config to disable password authentication:
nano /etc/ssh/sshd_config


© 2022 Contabo GmbH
Video by:
Tobias "TM" Mildenberger aka. @realtmcsgo

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