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How to disable SSH password login on Linux?
First, you need to setup a normal user account. Next, configure SSH keys for login. Once you have SSH Keys configured, you need to disable password login for all users include root. In this guide, shows you how to generate an ssh key and disable password authentication on the Linux or Unix-based system.
How to get a password prompt with SSH?
Just try these following commands ssh-keygen. Press Enter key till you get the prompt ssh-copy-id -i root@ip_address. (It will once ask for the password of the host system) ssh root@ip_address. Now you should be able to login without any password
How to disable SSH public key authentication from Windows 10?
If you leave the permission 640 or 644 then ssh will complain that the permissions are not secure enough and not use it. If you chmod it to 600, then it will prompt for a password 3 times and fail because there is no password. So just leave it 640 or 644. Then when you ssh use this command.
Why is my SSH server not giving me a password?
If the server allows both public key and password authentication then even if you try to connect without a private key file present on the client, it should prompt you for a password. If you are getting the error message “Permission denied (publickey)” then it sounds like password authentication is not supported on your server.
Is it possible to disable SSH public key authentication?
OpenSSH key public key authentication, let users log into server without the need to use their user’s passwords. It is possible to disable any other form of login into server, and let available only authentication based on ssh public key. What is achieved, using this method is to avoid password break by brute force attacks.
How to disable password login for any other user?
Disable password login for any other user in the server We will create our ssh key, and copy it to the server, so we can then log into it without need to enter the user password. To create your public and private SSH keys on the command-line, do this on the computer you want to log into the server from: mkdir ~/.ssh
Is it safe to use SSH with a password?
One of the basic SSH hardening step is to disable password based SSH login. You know that you can use ssh with the root or other account’s password to login remotely into a Linux server. But this poses a security risk because a huge numbers of bots are always trying to login to your system with random passwords. This is called brute force attack.