I can't connect to device - balena ssh <uuid device> - Host <UUID> not found: 2(SERVFAIL)

[matiasAS]

Description

I'm encountering a persistent problem when attempting to establish an SSH connection to devices managed by openBalena. Despite having the necessary DNS configurations and verified connectivity through nslookup for ssh.devices.openbalena-sistemasmas.online, I'm unable to use the balena ssh <UUID> command to connect to my devices. The operation fails with the following error:

Although I can successfully establish a connection using balena tunnel, I am looking for a resolution to use balena ssh due to its more direct, faster, and easier approach.

Environment

• openBalena Version: (utilizing the latest tags as mentioned)
  • OPENBALENA_API_VERSION_TAG=latest
  • OPENBALENA_DB_VERSION_TAG=latest
  • OPENBALENA_MDNS_PUBLISHER_VERSION_TAG=latest
  • OPENBALENA_REGISTRY_VERSION_TAG=latest
  • OPENBALENA_S3_VERSION_TAG=latest
  • OPENBALENA_VPN_VERSION_TAG=v11.26.0
• balena CLI Version: 17.4.2
• Operating System: Ubuntu 22.04.3
• Cloud Provider for DNS: Cloudflare
• DNS Configuration: An A record for ssh.devices subdomain is provided with "DNS only" setting in Cloudflare.

Steps to Reproduce

1. Execute the command balena ssh <UUID> in the terminal.
2. The error message appears immediately after.

Current State

• The error blocks the use of the balena ssh <UUID> command.
• There is no issue when connecting using balena tunnel as an alternative method.

Attempts to Resolve

• DNS settings have been double-checked for accuracy.

• DNS resolution for ssh.devices.openbalena-sistemasmas.online has been confirmed through nslookup.

• VPN service logs have been reviewed and show no apparent issues with device connections.

• I am seeking a solution that allows me to use balena ssh without the workaround of balena tunnel.

I wonder if leaving the DEVICE_CONFIG_SSH_AUTHORIZED_KEYS environment variable empty could be causing the issue, as I have not configured it for my setup. Could this be related to the balena ssh command not functioning as expected?

[ab77]

openBalena does not have SSH functionality, unlike balenaCloud. You could implement your own using tunnel endpoint provided by open-balena-vpn.