I understand that Windows10 broke many things, so that the GUI doesn't work too well to access Windows Samba/CIFS storage. If the file manager you use doesn't work with 'mynas' or the ip address, then it is entirely possible you don't have the cifs libraries installed. You would create that directory, since it doesn't exist. Typically, people would mount it under something like /nfs/data so that multiple users can access it easily. just like every other native Linux file system. It would look like every other directory and it would support chown, chmod, hardlinks, and symbolic linking. With NFS, you'd mount the storage do a directory on your Ubuntu system somewhere. Most $100+ NAS systems support NFS, but YMMV.

Linux is a Unix-like OS, of that isn't clear already. NFS is the native solution for network storage for Unix systems. Since 2002, nobody, anywhere, should be using plain FTP. The order of preference for LAN-based network storage would be: Unix-like OSes use something called 'mounts' to make network storage behave as local disk. Only Windows has 'drive letters.' No other OS works that way. Can you 'ping' the NAS using the name or the IP? If that doesn't work, try smb://.x/MyFolder You'll need to know the IP address of the NAS. It will prompt you for login credentials. If you have the client-cifs packages installed, then you can put smb://MyNAS/MyFolder into the URL - like a website access. Open any file manager, the name will depend on exactly which flavor and version of ubuntu is used.

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