[Linux] Configuring SSH service on ubuntu

        To configure SSH service on Ubuntu, first install ssh-server

sudo apt install openssh-server

        After the installation is complete, you can check whether the installation was successful

systemctl status ssh

vim /etc/ssh/sshd_config

        At this point, ubuntu can be connected by the remote connection tool. If we want to configure the SCP service to allow the transmission of root user files, we need to modify the following configuration file

vim /etc/ssh/sshd_config

        After modification, restart the ssh service to send the root user’s files.