Heroku ps:exec无法SSH连接，求助获取详细错误日志方法

No worries at all—we’ve all stumbled through platform setup hurdles as a newbie! Since the standard -v/--verbose flags aren’t giving you the detail you need, let’s cover a few reliable ways to get granular debug logs for your Heroku SSH connection problems.

1. Use SSH’s Native Verbose Mode (Multiple Levels) #

Heroku’s SSH-related commands (like heroku ps:exec) wrap around the standard ssh utility under the hood. To get maximum detail, you can force the underlying SSH command to use higher verbosity levels:

• For basic extra detail: heroku ps:exec --ssh-flags="-v"
• For even more output (great for debugging handshake issues): heroku ps:exec --ssh-flags="-vvv"
  The triple -vvv flag will dump every step of the SSH connection process—from key exchange attempts to authentication handshakes.

2. Enable Heroku CLI Debug Mode #

You can tell the Heroku CLI itself to output full debug logs by setting the HEROKU_DEBUG environment variable before running your command:

• On Mac/Linux/WSL:

  HEROKU_DEBUG=1 heroku ps:exec
  

• On Windows Command Prompt:

  set HEROKU_DEBUG=1 && heroku ps:exec
  

• On Windows PowerShell:

  $env:HEROKU_DEBUG=1; heroku ps:exec
  

This will log everything the CLI does behind the scenes, including how it’s interacting with the SSH client and Heroku’s servers.

3. Check Local Heroku CLI Log Files #

The Heroku CLI stores persistent logs on your local machine, which might have details that don’t show up in the terminal:

• Mac/Linux: Look in ~/.local/share/heroku/logs/ for the latest log files (they’re named with timestamps).
• Windows: Check %LOCALAPPDATA%\heroku\logs\ for the most recent logs.
  Open these files in a text editor—they often contain extended error messages or connection traces that aren’t printed to stdout.

4. Debug Git SSH Connections (If Applicable) #

If your SSH issue is related to git operations (like pushing code to Heroku), use the GIT_SSH_COMMAND to inject verbose SSH logging into the git process:

GIT_SSH_COMMAND="ssh -vvv" git push heroku main

This will show you exactly how git is negotiating the SSH connection with Heroku’s git servers.

Quick Note #

When sharing any of these logs (if you need further help), make sure to redact sensitive information like SSH key fingerprints, authentication tokens, or personal account details!

内容的提问来源于stack exchange，提问作者nanangarsyad