Troubleshooting Oracle Linux Instances
If you have issues with Oracle Linux instances on Oracle Cloud Infrastructure, review troubleshooting, diagnostics, and monitoring information:
- SSH Connections Troubleshooting
- Login Troubleshooting
- Permissions Troubleshooting
- Unbreakable Enterprise Kernel Troubleshooting
- Collecting Crash Dumps Using Kdump
- Collecting System and Debug Information Using sos
- Subscribing to Oracle Linux 7 Extended Support Yum Channels
See also: Known Issues for Oracle Linux Instances.
SSH Connections Troubleshooting
If you're unable to connect to an Oracle Linux instance on Oracle Cloud Infrastructure using SSH, review the following information.
- SSH Login Denied Using PuTTYgen Key Files: "Permission denied (publickey,gssapi-keyex,gssapi-with-mic)"
- SSH Fails with Error: "Authentication Refused: Bad Ownership Or Modes For Directory "
- SSH Error: connect to host w.x.y.z port 22: Operation timed out
- SSH: Connect to host w.x.y.z port 22: Connection refused
- <user-name>@w.x.y.z: Permission denied (publickey,gssapi-keyex,gssapi-with-mic)
For more help, see Troubleshooting the SSH Connection.