Lenovo XClarity Controller 2 Remote Console problem

[steve-nscale]

Hi Teleporters.

Running V15

Firstly amazing product. Im having an issue with a websocket connection to a Lenovo XClarity Controller 2 BMC session.

I can access and log into the BMC with no problem, but accessing the remote console results in the following happening.

A new window is opened with a url like

https://DEVICE.teleport.company_url:3900/index.html?nopop=1&viewerURL=https://DEVICE.teleport.company_url/#/remote

This times out.

If i grab the last part of the URL (https://DEVICE.teleport.company_url/#/remote) i can at least get the console to partial load, but it fails connecting to the websocket. In developer tools i see the following

**WebSocket connection to 'wss://DEVICE.teleport.company_url:3900/' failed: **

The yaml used to create the application in teleport is as follows

kind: app
version: v3
metadata:
  # Application name.
  name: device
  # Application description.
  description: "BMC for device"
  # Application static labels.
  labels:
    env: xxx
    access:xxx
    site: xxx
spec:
  # URI and port application is available at.
  uri: https://BMCIP
  # Optional application public address.
  public_addr: device.teleport.companyname
  # Disable application certificate validation.
  insecure_skip_verify: true
  rewrite:
    headers:
    - name: Host
      value: device.teleport.companyname
    - name: Origin
      value:  https://device.teleport.companyname"
    redirect:
    - "ip-address"
    - "ip-address:3900"
    - "https://ip-address:3900"
    - "https://ip-address"

Nothing jumps out at me in the logs apart from

2024-11-08T23:46:47Z WARN [ALPN:PROX] Failed to handle client connection. error:[
Nov 08 23:46:47 teleport[653]: ERROR REPORT:
Nov 08 23:46:47 teleport[653]: Original Error: *errors.errorString tls: no cipher suite supported by both client and server
Nov 08 23:46:47 teleport[653]: Stack Trace:
Nov 08 23:46:47 teleport[653]:         github.com/gravitational/teleport/lib/srv/alpnproxy/proxy.go:395 github.com/gravitational/teleport/lib/srv/alpnproxy.(*Proxy).handleConn
Nov 08 23:46:47 teleport[653]:         github.com/gravitational/teleport/lib/srv/alpnproxy/proxy.go:329 github.com/gravitational/teleport/lib/srv/alpnproxy.(*Proxy).Serve.func1
Nov 08 23:46:47 teleport[653]:         runtime/asm_amd64.s:1695 runtime.goexit
Nov 08 23:46:47 teleport[653]: User Message: tls: no cipher suite supported by both client and server] alpnproxy/proxy.go:340

But im not 100% sure its related.

Any suggestions?

[steve-nscale]

Does anyone have any suggestions on what we can do to work around this problem?