How To Log Into Your Virtual Compute Node?
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Log in to your Virtual Compute Node
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You can access your Virtual Compute Node through SSH keys (If previously added) or the root password sent to you on your account’s email address.

Linux Users
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* Log in to a Linux machine from a Linux machine.
* This article will be about using ssh (secure shell) to login to a remote machine:

**(i) Password-Based Login – Linux**

* First, you will need to open up the terminal. (Application –> Accessories –> Terminal).
* Then type the following command
* $ ssh username@hostname (where username is the name of the user of the target computer & hostname is the IP address i.e. the Public IP that you will be connecting to)

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* The first time you log in you may see this message:
.. Note:: The authenticity of host ‘#.#.#.#(#.#.#.#)’ can’t be established. RSA key fingerprint is ————–. Are you sure you want to continue connecting (yes/no)?

* The terminal will display a warning but that’s fine, write yes & continue.
* Next Terminal will prompt you for a password
* **username@hostname password:** Type password & press **Enter** key 4
* Login with your credentials (You can access your login credentials from an e-mail sent to you).

**(ii) SSH Login – Linux**

You can log in to a remote Linux server without entering a password by your public/private key pair.

* If you have not generated an SSH Keypair please visit – `How To Set-Up SSH Keys – Linux <https://docs.e2enetworks.com/guides/ssh-key_linux.html>`_

* To SSH into your Linux virtual compute node, use the following command on your Linux terminal.

 $ ssh username@hostname

* That’s it. You should be now able to log in to the remote machine without a password.

Windows Users
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Password-based authentication is very insecure and vulnerable to bot-nets trying to guess user names and passwords over the internet. Hence we recommend key-based authentication to access the server. Please follow these steps to add your keys to the server:

**Prerequisites**

* PuTTY, PuTTYgen. Download here: http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html
* If you have not generated an SSH Keypair please visit – `How To Set-Up SSH Keys – Windows <https://docs.e2enetworks.com/guides/ssh-key_windows.html>`_

**(i) Password-Based Login – Windows**

Launch PuTTY which will open the PuTTY configuration window and set the following:

* Select “Session” from the “Category” pane on left. Set Host Name(or IP Address) root@hostname (where hostname is the IP address i.e. the External IP that you will be connecting to).

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* Go back to Session, create a session name under “Saved Session” and click on Save.

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* To Login selects the session you saved and click on Load. Then click on “Open” to launch the terminal window.

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* Next Terminal will prompt you for a user ID & password
* Login with your credentials (You can access your login credentials from an e-mail sent to you)

**(ii) SSH Login – Windows**

Launch PuTTY which will open the PuTTY configuration window and set the following:

* Select “Session” from the “Category” pane on left. Set Host Name(or IP Address) root@hostname (where hostname is the IP address i.e. the External IP that you will be connecting to) and Connection Type as SSH.

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* On the left pane, go to “Connection -> Data” and set “Auto-login username” as “root” or enter your username.

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* On the left pane, go to “Connection -> SSH -> Auth” .Click on “Browse” to select your private key file.

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* Go back to Session, create a session name under “Saved Session” and click on Save.

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* To SSH Select the session you saved and click on Load. Then click on “Open” to launch the terminal window.