The Complete Practical Docker Guide - Enabling SSH on the Linux Server

This video tutorial explains how to enable and configure SSH on a Linux computer, particularly in a Docker container. It covers the basics of SSH, its use in remote connections, and the importance of port 22. The tutorial demonstrates setting up SSH in a Docker container, creating and connecting to containers, and installing OpenSSH. It also discusses creating users and security measures to prevent root access via SSH.

What is the primary purpose of using SSH in remote server connections?

• To encrypt communication over the internet

• To increase the speed of data transfer

• To enable file sharing between computers

• To provide a graphical interface for server management

Which port must be open to establish an SSH connection?

• Port 22

• Port 443

• Port 21

• Port 80

What command is used to publish the internal SSH port to an external port on a Docker container?

• docker expose

• docker publish

• docker map

• docker link

Why is the SSH command initially not found in the Ubuntu Docker image?

• The image is outdated

• SSH is not installed by default

• The command syntax is incorrect

• The image is corrupted

What package needs to be installed to enable SSH communication on Ubuntu?

• OpenSSH Server

• OpenSSH Client

• SSH Config

• SSH Keygen

What is a default security measure for SSH connections on Linux?

• Blocking root user access

• Enabling anonymous login

• Allowing root user access

• Disabling password authentication

Which command is used to create a new user for SSH access?

• createuser

• newuser

• adduser

• useradd