I try to mount Nuxeo as WebDAV on Ubuntu, but it fails with an authentication error:

$ sudo mount.davfs http://localhost:8080/nuxeo/site/dav/ /mnt/webdove

Please enter the username to authenticate with server
http://localhost:8080/nuxeo/site/dav/ or hit enter for none.
  Username: Administrator
Please enter the password to authenticate user Administrator with server
http://localhost:8080/nuxeo/site/dav/ or hit enter for none.
  Password:  
Could not authenticate to server: rejected Digest challenge

I just installed a fresh Nuxeo LTS2017 on Ubuntu 16.04, kept the Administrator / Administrator login. Standard Tomcat setup, on Apache in front, running on port 8080.

Opening the URL in the web browser works fine.

Mounting to other WebDAV servers (not Nuxeo) with davfs2 on this machine works fine.