OpenSSH login without password prompt by user that present in both systems /etc/shadow file

Gektor 0
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Is it possible to login from local to remote Linux PC SSH by (not root) user that presents in both systems without password input? I mean - use /etc/shadow on both points as password for login to remote SSH with same user credentials (login and password identical on both systems).

Main point - is not use key based authentication and use encrypted password (SHA-512) to login on remote SSH.

openssh shadow passwords ssh authentication
1 Answers

To set up a system to login into a remote system with no password required, you create a new encryption key:

ssh-keygen -t ed25519

Copy the file to the remote:

ssh-copy-id -i ~/.ssh/id_ed25519.pub user@remote

Now when you ssh into the remote, you will no longer be asked for the password.

James Risner0
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