SSH Remote Ubuntu Tutorial

SSH Remote Ubuntu Tutorial

Table of contents

1. What is SSH?
2. Advantages of SSH
3. Enable SSH service on Ubuntu
4. Connect to remote Ubuntu server
5. Common commands for SSH

1. What is SSH?

SSH (Secure Shell) is a network protocol used to securely log in and execute commands remotely in an insecure network. It uses encryption technology to protect the transmission of data and the authentication process.

2. Advantages of SSH

• Security: All transmissions are encrypted to prevent data from being eavesdropped or tampered with.
• Remote management: You can connect to remote servers via SSH, execute commands and manage remote systems.
• Cross-platform: SSH can run on a variety of operating systems, including Linux, Windows, and Mac OS.

3. Enable SSH service on Ubuntu

Enabling SSH service on Ubuntu is very simple. Follow the steps below:

1. Open a terminal.
2. Run the following command to install the SSH service:

sudo apt update
sudo apt install openssh-server

3. After the installation is complete, the SSH service will automatically start and start on system boot.

4. Connect to remote Ubuntu server

To connect to a remote Ubuntu server, you need to know the server's IP address and username. Follow the steps below:

1. Open a terminal.
2. Run the following command to connect to the remote server:

ssh username@ip_address

will be usernamereplaced by your username on the remote server ip_addresswith the server's IP address.

3. After a successful connection, you will be asked to enter a password. After entering the correct password, you will be logged into the remote server.

5. Common commands of SSH

The following are some common commands for SSH:

• ssh username@ip_address: Connect to a remote server.
• ssh-keygen: Generate an SSH key pair.
• ssh-copy-id username@ip_address: Copy the public key to the remote server for passwordless login.
• scp file username@ip_address:destination: Copy the local file to the remote server.
• scp username@ip_address:file destination: Copy files from remote server to local.

These commands are only part of SSH, there are many other commands that can be used to manage remote servers and file transfers.

Hope this tutorial helps you!