shrivatsabhat / remocolab

remocolab is a Python module to allow remote access to Google Colaboratory using SSH or TurboVNC.

Credits to @demotomohiro for major setup process

Run colabvnc notebook

WINDOWS USERS:

Windows 10 supports SSH in powershell

Try ssh on Powershell if it doesnt work then you need a Linux command line like http://cmder.net

DOWNLOAD THE SOFTWARE:>

VNC viewer for windows ... with tight compression

tightvnc.com

open tightvnc viewer and use localhost:1 to connect to colab vnc over ssh

If ssh in powershell doesnt work

Linux Command line (Terminal to run ssh commands)

cmder.net Cmder Mini is enough for ssh

you can copy the command that shows up on the colab notebook and run it

remocolab

remocolab is a Python module to allow remote access to Google Colaboratory using SSH or TurboVNC. It also install VirtualGL so that you can run OpenGL programs on a Google Colaboratory machine and see the screen on VNC client. It secures TurboVNC connection using SSH port forwarding.

Requirements

• You can use Google Colaboratory
  • That means you need Google acount and a browser that is supported by Google Colaboratory.
• ngrok Tunnel Authtoken
  • You need to sign up for ngrok to get it
• SSH client
• (Optional) TurboVNC Viewer if you use it.

How to use

1. Create a new notebook on Google Colaboratory
2. Add a code cell and copy & paste one of following codes to the cell

• SSH only:

!pip install git+https://github.com/demotomohiro/remocolab.git
import remocolab
remocolab.setupSSHD()

• SSH and TurboVNC:

!pip install git+https://github.com/demotomohiro/remocolab.git
import remocolab
remocolab.setupVNC()

3. (Optional) If you want to run OpenGL applications or any programs that use GPU, Click "Runtime" -> "Change runtime type" in top menu and change Hardware accelerator to GPU.
4. Run that cell
5. Then the message that ask you to copy & paste tunnel authtoken of ngrok will appear. Login to ngrok, click Auth on left side menu, click Copy, return to Google Colaboratory, paste it to the text box under the message and push enter key.
6. Select your ngrok region. Select the one closest to your location. For example, if you were in Japan, type jp and push enter key.
7. remocolab setup ngrok and SSH server. Please wait for it done (about 2 minutes)
8. Then, root and colab user password and ssh command to connect the server will appear.
9. Copy & paste the ssh command to your terminal and login to the server using displayed colab user password. (Even if you just want to use TurboVNC, you need to login using SSH to make SSH port forwarding)

• If you use TurboVNC:

10. Wait for remocolab setup TurboVNC (about 2 minutes)
11. When VNC password is displayed, run TurboVNC server, set server address to localhost:1 and connect
12. Then, password will be asked. Copy & paste that VNC password to your TurboVNC viewer.

How to run OpenGL applications

Put the command to run the OpenGL application after vglrun. For example, vglrun firefox runs firefox and you can watch web sites using WebGL with hardware acceleration.

How to setup public key authentication

By using public key authentication, you can login to ssh server without copy&pasting a password. If you don't have an SSH key pair, generate it with ssh-keygen:

ssh-keygen -t ecdsa -b 521

Add following code after remocolab.setupSSHD() or remocolab.setupVNC(), and replace "my public key" in following code with your public key.

!mkdir /home/colab/.ssh
with open("/home/colab/.ssh/authorized_keys", 'w') as f:
  f.write("my public key")
!chown colab /home/colab/.ssh /home/colab/.ssh/authorized_keys
!chmod 700 /home/colab/.ssh
!chmod 600 /home/colab/.ssh/authorized_keys

If you want to login as root, use following code:

!mkdir /root/.ssh
with open("/root/.ssh/authorized_keys", 'w') as f:
  f.write("my public key")
!chmod 700 /root/.ssh
!chmod 600 /root/.ssh/authorized_keys

And replace user name colab in ssh command to root.

Experimental kaggle support

remocolab in kaggle branch works on Kaggle.

1. Create a new Notebook with Python language.
2. Set settings to:
   • Internet on
   • Docker to Latest Available
   • GPU on if you use TurboVNC
3. Add a code cell and copy & paste one of following codes to the cell

• SSH only:

!pip install git+https://github.com/demotomohiro/remocolab.git@kaggle
import remocolab
remocolab.setupSSHD()

• SSH and TurboVNC:

!pip install git+https://github.com/demotomohiro/remocolab.git@kaggle
import remocolab
remocolab.setupVNC()

4. Follow instructions from step 4 in above "How to use".