Setting Direct Ethernet Cable Connection between Two Ubuntu 22.04 PCs for SSH

Setting Direct Ethernet Cable Connection between Two Ubuntu 22.04 PCs using SSH

This article will guide you through the process of setting up a direct Ethernet cable connection between two Ubuntu 22.04 PCs, and using SSH (Secure Shell) to securely access one computer (let's call it the "client") from the other (let's call it the "server").

Prerequisites

• Two computers running Ubuntu 22.04
• An Ethernet cable to connect both computers

Connecting the Ethernet Cable

Connect both computers using the Ethernet cable. Plug one end of the cable into the Ethernet port of the "server" and the other end into the Ethernet port of the "client".

Configuring Network Settings

On both computers, you need to configure the network settings manually to set a static IP address. We will use the following IP addresses:

• Server: 192.168.0.1
• Client: 192.168.0.2

To set a static IP address, follow these steps on both computers:

1. Click on the network icon in the top right corner of the screen.
2. Click on Wired Connected and then Wired Settings.
3. Click on the gear icon next to the network interface.
4. Switch to the IPv4 tab.
5. Select Manual from the dropdown menu.
6. Add the following IP address settings:
• Address: 192.168.0.1 (server) or 192.168.0.2 (client)
• Netmask: 255.255.255.0
7. Click on Apply to save the changes.

Enabling SSH Server

On the "server", you need to enable the SSH server. Follow these steps to enable the SSH server:

1. Open a terminal.
2. Install the OpenSSH server by running the following command:
sudo apt install openssh-server
3. Start the SSH server by running the following command:
sudo systemctl start ssh
4. To ensure the SSH server starts automatically at boot time, run the following command:
sudo systemctl enable ssh

Connecting to the Server using SSH

On the "client", you can now connect to the "server" using SSH. Follow these steps to connect to the server:

1. Open a terminal.
2. Run the following command to connect to the server:
ssh [email protected]
3. Replace user with your username on the server.
4. When prompted, enter your password for the server.

• Step 1: Connect both computers using an Ethernet cable.
• Step 2: Configure the network settings on both computers.
• Step 3: Enable the SSH server on the server.
• Step 4: Connect to the server using SSH on the client.

References

• Ubuntu official website
• Ubuntu documentation