Updated Troubleshooting Steps (markdown)

Troubleshooting-Steps.md

@@ -1,6 +1,10 @@
 If sshd cannot start
   * Check that sshd_config is in place
-  * Check that host keys are generated
+  * Check that host keys are generated and have correct file permission:
+  * Check if private host keys are protected:
+    * The file owner of private host key files cannot be other accounts than current user, Administrators group, Local system account, or an user account in local Administrators group
+    * Other accounts than current user, Administrators group, Local system account, or an user account in local Administrators group should not have any access to private key file
+  * Check if "NT service\sshd" have read access to public key files
 
 Trouble shooting steps for typical connection issues:
 - Server side - run sshd in debug mode