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Troubleshooting Steps

Manoj Ampalam edited this page Feb 2, 2018 · 17 revisions

Troubleshooting steps for typical service startup and connection issues:

  • Server side: run sshd in debug mode
    • Stop-Service sshd (if sshd service is running)
    • Open cmd as SYSTEM. Download psexec from here.
      • psexec -s cmd
    • sshd.exe -d
    • This will dump debug logs in real time to stdout on the console
    • You can also add additional ds for more detailed loggin:
      • sshd.exe -dd or sshd.exe -ddd
  • Client side: start ssh in verbose mode
    • ssh.exe -v ...
    • This will dump verbose logs in real time to stdout on the console
    • You can also add additional vs to get more verbose messages:
      • ssh.exe -vv ... or ssh.exe -vvv

Troubleshooting more complex issues:

  • Server side
    • Stop sshd
      • Stop-Service sshd
    • Delete sshd.log and ssh-agent.log (under %programdata%\ssh\logs)
    • Set LogLevel to DEBUG (or DEBUG2/DEBUG3 for higher levels of logging) in sshd_config
    • Rerun the workflow that's giving you problems. logs\sshd.log will contain sshd related traces.
    • If the problem isn't clear, please post these logs along with some steps to help us reproduce your problem in our GitHub Issues.
  • Client side
    • Set LogLevel to DEBUG (or DEBUG2/DEBUG3 for higher levels of logging) in ssh_config.
    • Run ssh.exe in verbose mode as detailed above
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