How to Add New SSH Key to a Cloud Server | servers.com (2024)

To use а SSH key pair to connect to a server, the "public" part of the pair has to be placed on the server. Please refer to the first section of the"How to create and access a Linux-based cloud server via an SSH key"article for instruction on how to generate key pairs under Windows, Mac, and Linux.

Now, when you have a key pair, you need to add a public key to the "authorized_keys" file in your home directory on the server.

1. Connect to the server using your current key

ssh [email protected] -i /current_private_ssh_key

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2. Add a public key to the "authorized_keys" file

You can add a public key to the "authorized_keys" file using "nano" text editor (or any text editor of your choice):

nano /home/cloud-user/.ssh/authorized_keys

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Paste your public key from the new line:

How to Add New SSH Key to a Cloud Server | servers.com (1)

Save changes by pressing Ctrl+X, Y, Enter.

If you don't have "nano" installed

You can install "nano" by running the following commands on Ubuntu:

sudo apt update && sudo apt upgradesudo apt install nano

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On CentOS:

yum updateyum install nano -y

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3. Verify new key

Do not terminate existing SSH session. Open new session with the key you have just added:

ssh [email protected] -i /new_private_ssh_key

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If the connection is established successfully, you all right. To remove one of the keys, just remove it from "authorized_keys" using the same "nano".

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How to Add New SSH Key to a Cloud Server | servers.com (2024)

FAQs

How to Add New SSH Key to a Cloud Server | servers.com? ›

SSH keys can be used to securely connect to server via the encrypted SSH protocol. This is a key pair: the private key is stored on the local computer and the public key is hosted on the server. We recommend using SSH keys instead of login and password to authenticate to the cloud server.

How to add new SSH key to Oracle cloud instance? ›

Adding an SSH Key
  1. Log in to the UI and go to the Self Service Portal.
  2. Click Preferences.
  3. In the Preferences window, select Infrastructure - Oracle Compute in the left pane.
  4. In the Configure SSH Keys and Host Credentials region, click Add.

What is the SSH key for cloud server? ›

SSH keys can be used to securely connect to server via the encrypted SSH protocol. This is a key pair: the private key is stored on the local computer and the public key is hosted on the server. We recommend using SSH keys instead of login and password to authenticate to the cloud server.

How do I SSH into a cloud server? ›

The basic format is “ssh username@ip_address”. Substitute “username” with your server's username and “ip_address” with the IP address or cloud server's hostname. If it's your first time connecting to the server, you might be asked to verify the server's fingerprint.

How to change SSH server key? ›

Unix host key change instructions
  1. Run this command, replacing HOSTNAME with the name of the host you are connecting to: ssh-keygen -R HOSTNAME. ...
  2. Add the new key to your known hosts with the command: ssh HOSTNAME.
  3. You should be prompted to add the key to your known_hosts file, as shown below.

How do I add a new SSH key to my server? ›

How to add new SSH key to a cloud server
  1. Connect to the server using your current key. ssh [email protected] -i /current_private_ssh_key.
  2. Add a public key to the "authorized_keys" file. You can add a public key to the "authorized_keys" file using "nano" text editor (or any text editor of your choice): ...
  3. Verify new key.

How do I add another SSH key? ›

Table of Contents
  1. Step 1: Double-check if you have an existing SSH key. ...
  2. Step 2a: If you don't have an existing SSH key, generate a new SSH key. ...
  3. Step 2b: Save the SSH key in the according file of your choice. ...
  4. Step 3: Adding the SSH to the ssh-agent. ...
  5. Step 4: Add your SSH private key to the ssh-agent.

How to create a SSH key? ›

For Windows 10 & 11
  1. Press the Windows key or open up the Start Menu. Type “cmd”.
  2. Under “Best Match”, click “Command Prompt”.
  3. In the command prompt, use the ssh-keygen command: ...
  4. The system will now generate the key pair and display the key fingerprint and a randomart image. ...
  5. Open your file explorer.

What is the default SSH login for cloud key? ›

The default login is ubnt/ubnt. After the UniFi Setup Wizard is finished, the UniFi Controller management interface will appear.

Where is the SSH key in Gcloud? ›

If you choose View gcloud command

Each time you connect to BIG-IP VE, Google searches for keys in your home directory (for example, ~/. ssh/google_compute_engine or google_compute_engine. pub ). If keys exist, Google uses them to connect.

How do I add a SSH key to Google cloud? ›

To add a public SSH key to instance metadata using the Google Cloud console, do the following:
  1. In the Google Cloud console, go to the VM instances page. ...
  2. Click the name of the VM that you want to add an SSH key for.
  3. Click Edit.
  4. Under SSH Keys, click Add item.
  5. Add your public key into the text box. ...
  6. Click Save.

How to SSH into Oracle Cloud Server? ›

Access an Oracle Cloud Service Using SSH
  1. Open the job's configuration page.
  2. Click the Before Build tab.
  3. Click Add Before Build Action and select SSH Configuration.
  4. In Private Key and Public Key, enter the private and the public key of your SSH Private-Public key pair.

How do I connect to a Cloud Server? ›

Open your server settings and go to the Console tab. Then simply click the button on the left to Open the console connection. Log in using root or any other username and password stored on your Cloud Server.

Can I edit my SSH key? ›

Editing SSH key details

If you need to edit the key, remove the key and add the correct key to the IBM Cloud console. The fingerprint that is listed with the details for the SSH key is not the key. The fingerprint is a short sequence of bytes that are used in the retrieval of the key.

How to SSH into a server? ›

Connecting to your Dedicated Server via Terminal
  1. Open the terminal on your computer.
  2. Type ssh, followed by a space. ...
  3. If you see a message stating “Are you sure you want to continue connecting” type yes, then click the Enter key.
  4. You will then be prompted to enter your password.
Feb 21, 2024

How do I create a SSH host key? ›

To generate an SSH key on your Linux server, run the command ssh-keygen . The command can take flags if you would like to customize the type of key that is generated and the signing algorithms that are used to generate the key. This example generates a standard 2048-bit RSA key without a passphrase.

How to change SSH key in Oracle? ›

  1. Access your cloud-account using a browser - say FireFox.
  2. Click your specific 'Console-Connection' on the left (you may need scroll down)
  3. Click on 'Launch Cloud Shell Connection'
  4. Login using ID/PASSWORD.
  5. goto /home/USER/.ssh.
  6. edit 'authorized_keys' and add/modify SSH-KEYS.
Mar 3, 2023

How do I create a new SSH key for ec2 instance? ›

1 Answer
  1. Open the Amazon EC2.
  2. Click Key Pairs in the Navigation pane.
  3. The console displays a list of key pairs associated with your account.
  4. Click Create Key Pair.
  5. The Key Pair dialog box appears.
  6. Enter a name for the new key pair in the Key Pair Name field and click Create.
  7. You are prompted to download the key file.
Jul 12, 2012

How do I add a SSH key to my Google Cloud VM instance? ›

To add a public SSH key to instance metadata using the Google Cloud console, do the following:
  1. In the Google Cloud console, go to the VM instances page. ...
  2. Click the name of the VM that you want to add an SSH key for.
  3. Click Edit.
  4. Under SSH Keys, click Add item.
  5. Add your public key into the text box. ...
  6. Click Save.

How to SSH into Oracle Cloud server? ›

Access an Oracle Cloud Service Using SSH
  1. Open the job's configuration page.
  2. Click the Before Build tab.
  3. Click Add Before Build Action and select SSH Configuration.
  4. In Private Key and Public Key, enter the private and the public key of your SSH Private-Public key pair.

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