Ubuntu system cannot ssh login--Install OpenSSH

Unlike the Red Hat series Linux distributions, the Ubuntu system is not able to ssh in directly after installation. You need to install OpenSSH manually.

The Ubuntu Installation OpenSSH command is as follows:

sudo apt-get install openssh-server openssh-client

Perhaps your system already exists on the client side, but there is no problem, just execute the command on the line.

After the installation is complete, confirm that the SSH service is started:

Ps-e | grep ssh

If you do not start the following command, you can:

sudo service ssh restart

You can then connect using the Connect tool. Other configurations such as ports can only be modified by the configuration text.

Ubuntu system cannot ssh login--Install OpenSSH