Jupyter
What is the HTTPS security warning?
When accessing Jupyter, browsers show a security warning because we use self-signed certificates. To fix:- Download and install our TLS certificate
- Windows/Linux: Can bypass by clicking Advanced → Proceed
- macOS: Must install certificate in Keychain Access
Why are Jupyter transfers slow?
Jupyter’s upload/download is not optimized for large files. Alternatives:- Use SCP/SFTP for large transfers
- Use cloud storage (S3, GCS)
- Use the Vast CLI copy commands
- Zip multiple files before downloading
How do I delete files in Jupyter to free space?
Jupyter moves deleted files to trash. To permanently delete:How do I run Colab notebooks?
- Select the PyTorch template with Jupyter enabled
- Start your instance
- Download the Colab notebook as
.ipynb
- Upload to Jupyter
- Install any missing dependencies with
pip install
How do I download multiple files from Jupyter?
Jupyter Lab: Shift-click to select multiple files, right-click to download Jupyter Notebook: Must download individually or zip first:Missing library or package errors?
Install dependencies in Jupyter terminal:SSH Access
How do I connect via SSH on Linux/Mac?
- Generate an SSH keypair:
- Load the key and verify:
- Get your public key:
- Copy the entire output (including
ssh-rsa
prefix anduser@host
suffix) to your Keys section
How do I connect via SSH from Windows?
Two options:- Windows Subsystem for Linux (WSL) - Follow Linux/Mac instructions above
- PuTTY - See our Windows SSH Guide
What is tmux and how do I use it?
We connect you to a tmux session by default for reliability. Common commands:- Create new terminal:
Ctrl+b, c
- Switch terminals:
Ctrl+b, n
- Split screen:
Ctrl+b, %
(vertical) orCtrl+b, "
(horizontal)
Can I disable tmux?
Not recommended (SSH can be unstable), but if needed, add to your onstart:SSH asks for a password - what’s wrong?
There is no SSH password - Vast.ai uses SSH key authentication only. If SSH asks for a password:- Your SSH key wasn’t added correctly to your account
- You didn’t copy the entire public key (must include
ssh-rsa
prefix anduser@host
suffix) - Your SSH client is misconfigured
- The private key isn’t loaded in your SSH agent