Bring your towel and join one of the fastest growing data communities. Welcome to our second-generation open source orchestration platform, a completely rethought approach to dataflow automation.

Prefect Community

Hi team,
I need some assistance as I am setting up new servers for our organization for prefect flows.

Just to give you some context, we already have an Amazon EC2 server that has Prefect flows on it. But, the version of this prefect is 0.13.19 and we need to update this to the latest version. I have now newly setup a new server with prefect 2.9.0 and it is working fine.

I am running the command - prefect server start, which starts the UI as expected and I do not see any error in the terminal. But, if I try to access that UI from any other machine/laptop, I do not see anything open on port 4200. We have checked that the inbound and outbound security of the EC2 is not an issue.

Any reason why this is happening?

You need to start the server bound to `--host 0.0.0.0`

(to enable external access — we don’t do this by default so people don’t expose their server to the world by accident)

You should make sure you’re using a VPC or something for your server.