Root user cannot connect via ssh under linux

Problem:

After installing Ubuntu on the virtual machine, when connecting remotely through ordinary ssh, I have clearly entered the correct root user name and password but I keep being prompted to enter the password. Unable to log in remotely, but normal users are fine.

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Solution:

1. Confirm that the ssh service has been installed and the connection is successful through an ordinary user;

2. Confirm whether the ssh configuration has special settings for root, modify the /etc/ssh/sshd_config file

Find PermitRootLogin without-password

Change without-password to yes ;

3. Restart the ssh service /etc/init.d/ssh restart;

4. Use ssh to connect again. This time there is no prompt and the connection is successful.

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