Hi everyone, I am running prefect server on my linux and I want someone else in my team to be able view the UI on their own machine. Typically to do this, I simply share <IP>:<port_number> and this works like a charm (I do this with airflow and streamlit while testing). We are on the same network. I tried the same for prefect (<IP>:8080) but it can't be reached. I am still learning about prefect and not sure why this behavior is different. Would appreciate any help Update: I tried to start a local agent from a different machine and I get

ConnectionRefusedError: [WinError 10061] No connection could be made because the target machine actively refused it

. I can't tell if this is related. I created a config.toml file

# base configuration directory 
home_dir = "C:/Users/XXX/.prefect"

backend = "server"

[server]
host = "<http://XXXXXX>"
port = "4200"
host_port = "4200"
endpoint = "${server.host}:${server.port}"

I am certain the server is running on the host ip address

@Ovo Ojameruaye the easiest way to share the UI with your team would be to sign up for Prefect Cloud and invite your teammates. We have a completely free tier with 20,000 free task runs each month. What do you mean by saying “on my linux” - is this some VM on prem/cloud or just your laptop? The connection error happened most likely due to missing firewall configuration. You need to open the GraphQL port and add:

[server]
  [server.ui]
    apollo_url = "<http://YOUR_MACHINES_PUBLIC_IP:4200/graphql>"

And on the agent machine:

[server]
endpoint = "<http://YOUR_MACHINES_PUBLIC_IP:4200/graphql>"

@Anna Geller, thank you. “on my linux” means some VM on prem. Can I use a different port rather than open the graphQL port? Something like this https://stackoverflow.com/questions/70258098/cant-access-prefect-server-remotely? I tried

prefect server start --server-port=8501

, updated the config file and now the UI (localhosr:8080) just tries to load but never does.

If you use

prefect server start --server-port=8501,

your config.toml would need to be:

[server]
endpoint = "<http://YOUR_MACHINES_PUBLIC_IP:8501/graphql>"

  [server.ui]
    apollo_url = "<http://YOUR_MACHINES_PUBLIC_IP:8501/graphql>"

@Anna Geller , this is what I did. After I make this change, the UI is unable to load. No errors, it just keeps trying in load on the machine I start the server from. I can’t figure out why, with everything I have seen and read, it should work

what is the full command you used to start the server? Did you use the --expose flag? I think this is what seems missing:

prefect server start --server-port=8501 --expose

Closing this out, the problem was that I was using VSCode remote to ssh into my VM. VSCode automatically forwards all open ports on the remote which ran prefect server to the local. I was able to connect to the UI using the IP address of my local machine. Thanks a lot for your help Anna