DevCon 2025 Troubleshooting
Last updated on 2025-05-23 | Edit this page
NGIAB-CloudInfra – DevCon 2025 Workshop Setup Guide
Welcome to the NGIAB Workshop!
This guide will help you troubleshoot problems.
Pre-Setup Requirements
You will be provided with a cloud instance (Jetstream) that already includes all the required tools (Docker and libraries). You will need the login credentials emailed to you before the workshop and a Virtual Network Computing (VNC) client installed.
Troubleshooting Checklist
If you didn’t get the expected output, check these:
Issues with VNC Client or Port Forwarding
If you are having issues with your VNC client, try using a different
service, or port forward to your local web browser. Try both RealVNC
and TigerVNC. Try entering
localhost:5906, and if that doesn’t work, enter
5906. Lastly, try port forwarding.
If you continue to have problems, make sure that the port you are
using in your ssh command is not being used on your local
machine. You can use the netstat command on all platforms
to check which ports are being used.
No Browser on Web Desktop
If Firefox is not installed on the Jetstream image’s web desktop, run this command:
Invalid Data Preprocess Command
Make sure that you are copying the command as one line, without any newline characters.
Are You on the Cloud Instance or Local Machine?
Sometimes people accidentally run commands on their local machine instead of the cloud instance. Here’s how to check:
✅ If you’re on the Jetstream cloud instance, you’ll see this:
exouser❌ If it says something like DESKTOP-ABC123,
MacBook-Pro.local, or anything else personal —
you’re on your own computer.
Fix: Go back and follow the login instructions provided earlier to connect to your assigned instance before proceeding.