Allow root user ssh remote login under Ubuntu

SSH server, you can access the remote server via SSH protocol instead of Telnet and FTP. However, Ubuntu defaults to not enable root users and does not allow root login. So you need to enable the root user first

Enable root User: sudo passwd root//Change password is enabled.

To install OpenSSH server:

1. Installing OpenSSH server using the APT command
   $ sudo apt-get install Openssh-server

2. Can be configured for OpenSSH server
   $ sudo vi/etc/ssh/sshd_config
   Find Permitrootlogin No Line and change to permitrootlogin Yes

3. Restart OpenSSH server
   $ sudo service ssh restart

4. If the client is Ubuntu, the SSH client is already installed and can connect to the remote server with the following command.
   $ SSH IP
   If it is a Windows system, you can connect remotely using SSH software such as SSH Secure shell.
   [c:\~]$ ssh [email protected]

Allow root user ssh remote login under Ubuntu