Verify the Knox Downgrade Was Successful

When the restart is complete, verify you are running an older version of Knox by following the steps listed below.

Navigate to the /var/log/knox/gateway directory and check the gateway.logfile for errors and an acknowledgement that the server restart was successful
Verify you have cluster access using the LISTSTATUSWebHDFS API call.
Check the Knox version using the Knox Admin service and Version API using the following command:
```
curl -ivk -u {adminuser}"{adminpassword} https://{knox host}:8443 /gateway/admin/v1/version
```