It is restricted to root. If you change the location that the audit files go you should be able to see them. To achieve this, modify the "Directory of audit files" parameter in the FTP section of the Sharing Protocols tab inside the NAS server properties settings window.
Hello Team, Let me see if you can help me, I need to enter the audit folder set in the FTP which is the path ./etc/log, used by default, but when I connect via ssh and try to access that path, I am stopped by the Rbash service, I have tried to disable it for 24 hours but the command does not answer me: uemcli /sys/security -restrictedShellEnabled Is there any other way to access those logs. Thank you very much for your help. 
Cant Acces to ./etc/logs