SSH (Secure Shell) is a secure protocol used for remote server access. By default, SSH uses public key authentication. However, there may be cases where you want to switch to password authentication instead. This tutorial will guide you through the process of disabling public key authentication and enabling password authentication in SSH.
Step 1: Log into SSH
Connect to your server using SSH:
ssh username@server_ip_address
Step 2: Edit SSH configuration
Open the SSH configuration file:
sudo nano /etc/ssh/sshd_config
Step 3: Modify "PasswordAuthentication"
Find the line "PasswordAuthentication" and change "no" to "yes":
PasswordAuthentication yes
Step 4: Save and exit
Save the file and exit the text editor.
Step 5: Restart SSH service
Restart the SSH service for changes to take effect:
sudo service sshd restart
Step 6: Log in with password authentication
Use SSH to log in with your password:
ssh username@server_ip_address
Conclusion:
By following these steps, you have successfully disabled public key authentication and enabled password authentication in SSH. Remember to use strong passwords to ensure the security of your server.
