Error
Error Code:
ACFS-05963
Oracle Database Error ACFS-05963: ACFS SSH Login Denied
Description
This error indicates that a specified user, typically 'root' or an ACFS administrator, on a particular node failed to establish an SSH connection to the primary node. This usually occurs during ACFS resource management, configuration, or startup when secure shell connectivity is required for inter-node communication.
Error Message
user <username> on node <nodename> unable to log in via 'ssh' to the primary node <primary_nodename> as user <target_username>
Known Causes
4 known causesSSH Authentication Failure
Incorrect SSH keys, passwords, or authentication methods are configured for the user attempting to log in on the primary node.
SSH Service or Firewall Block
The SSH daemon (sshd) might not be running on the primary node, or a firewall is blocking SSH connections (port 22) between the nodes.
Incorrect User Permissions
The user attempting to log in lacks necessary permissions, or their SSH environment (`.ssh` directory) has incorrect permissions on the primary node.
Network Connectivity Issue
Basic network reachability problems, such as hostname resolution or routing issues, prevent the source node from connecting to the primary node via SSH.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service