I am new to Unraid and just finished setting things up. I noticed some outgoing network activity on eth0 and wanted to know which applications are responsible. I looked around and the only real option I am seeing is using NetData. There does not appear to be any other plugin that will just show me plainly net traffic by application. On my Ubuntu Server, I just used nethogs to get a rough idea, but I can't install nethogs on Slackware without jumping through hoops.

I went to install NetData, but I got this error:

Error: failed to register layer: lsetxattr security.capability /usr/bin/fping: operation not supported

I looked around online and most people seem to be having a similar issue with OpenWrt and stems from the file system of the disk. In my case, I am using btrfs for the cache drive where the docker applications live. Could someone help me troubleshoot the problem? I have tried enabling privilege, but it did not help.

Edited November 17, 2025Nov 17 by Keystroke3

Look for the support thread for that cointainer:

I got no response when I posted in the thread. I got another similar error when I tried installing Joplin from the LinuxServer repos.:

 Error: failed to register layer: lsetxattr security.capability /usr/lib/x86_64-linux-gnu/gstreamer1.0/gstreamer-1.0/gst-ptp-helper: operation not supported

I tried formatting my cache drive to zfs, but that did not help with the situation either.

Edited November 17, 2025Nov 17 by Keystroke3

After posting on Reddit, I got a solution. I needed to delete my docker system directory and recreate it. For anyone else facing this issue, make sure you stop all docker apps, disable docker, back up your apps, delete the directory/vDisk and then create it again. Apps can be reinstaled from the templates. 

Posting the diags could have shown the issue. Also, and personally, I recommend using a Docker image instead of a folder. A folder can sometimes create strange issues, and they can be harder to troubleshoot.

I am still early in the process of restoring my apps, so I can make the switch. Which option do you recommend, btrfs or xfs?

Btrfs would be my choice; it's the default, and easier to detect any corruptions.

Ok, thanks.