Troubleshooting SSH Connection Errors
in Linux
Applies to
Oracle Cloud Infrastructure
Linux x86-64
Goal
When having issues connection to an OCI IAAS instance, the following documents below may help with troubleshooting.
Solution
1) When login to the instance is not possible due to errors, this document explains how to connect when ssh logins fails and how to change the configuration. : How to Use a Serial Console Connection to Edit Files or Change User Key in OCI Linux Instance
This document explains how to debug SSHD : OCI : Enable SSH Debug for Troubleshooting
2) Documents below explains various connection errors and solution to resolve them
Permissions denied Errors
Most of these documents are about wrong permissions for the users home directory or the .ssh directory
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