codex - 💡(How to fix) Fix Codex App Remote SSH uses id_rsa by default even if it doesn't exist [1 comments, 1 participants]

TL;DR

The Codex App may need a configuration update to correctly handle SSH connections without an explicitly specified identity file, defaulting to the first available key instead of always assuming id_rsa.

Guidance

• Verify that the SSH connections in the Codex App are correctly configured to use the intended identity file by checking the ~/.ssh/config file for each connection.
• Consider specifying the IdentityFile attribute in the ~/.ssh/config file for each connection to ensure the correct key is used.
• If no IdentityFile is specified, the Codex App should ideally default to the first available key in the ~/.ssh directory, such as id_ed25519 in this case, rather than assuming id_rsa.
• Review the Codex App documentation to see if there are any settings or configurations that can be adjusted to change the default behavior for SSH connections without an explicitly specified identity file.

Example

No code snippet is provided as the issue seems to be related to configuration rather than code.

Notes

The behavior described might be specific to the version of the Codex App being used (26.415.21839) and the platform (Darwin 25.3.0 arm64 arm). It's also possible that this is an intended behavior that can be overridden through configuration settings not immediately apparent from the issue description.

Recommendation

Apply workaround: Specify the IdentityFile attribute in the ~/.ssh/config file for each SSH connection to ensure the correct key is used, as this provides a direct solution to the problem described without relying on potential changes to the Codex App's default behavior.