Remotely connect to Ubuntu via XShell

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Under normal circumstances, only openssh-client is installed by default in the installed Ubuntu system. At this time, you can only access other systems through this system connection, but you do not have the authority to allow other systems to access. Check the ssh process in the terminal, enter ps -e|grep ssh, if openssh-client is installed, only ssh -agent will appear, and sshd will not appear (because the blogger has installed openssh-server , So sshd will appear).

At this time, if you want to open the local SSH service so that other systems can log in and access, you must install openssh-server. The installation process is as follows:

Enter sudo apt-get install openssh-server in the terminal, and then enter your own root password (because the blogger has already installed it, so the prompt is to upgrade);

Then start the ssh-server service, the opening method, of course, both of these opening methods need to switch to the root user or provide password permissions;

service ssh start
/etc/init.d/ssh start

Verify whether the opening is successful;

If the processes of sshd and ssh -agent appear at the same time when viewing the ssh process again, it means that the openssh -service has been installed successfully;

At this point, you can access Ubuntu through XShell, fill in the host IP, user name and user password in turn to successfully connect to Ubuntu;