Anonymous/Guest Folder Sharing - Ubuntu MATE on RPi4-B 8GB

Support & Help Requests Raspberry Pi
2

Well, to enable guest access to a shared folder I had to do following

  1. to take ownership both user and group of the /media/ folder where my USB external HDD is mounted (I did this earlier on some other Linux Distros as well)

     sudo chown <username> /media/<username>
 sudo chgrp <username> /media/<username>

  2. Then on this same folder I applied chmod 775, meaning that guest access won't entail a possibility to delete or change something

     sudo chmod 775 /media/<username>

  3. Prior to this this folder was mounted as drwxr-x---+ root root
    Now it was drwxrwxr-x+ <username> <username>

I assume that guest share was masked for all subfolders recursively.

  1. Then I did not try using caja-share right-mouse click option but instead went for smb.conf as per this instruction

https://computingforgeeks.com/install-and-configure-samba-server-share-on-debian-ubuntu/

Create mode and Directory mode were only downgraded to 775 and I did not occupy with the tutorial part beginning with Configure secure samba share and thereafter.

Maybe right-mouse click might have worked as well?

At the end I removed the old rule for the folder in /var/lib/samba/usershares/

Now sharing of the folder works both for guest users without a possibility of changing something, and I can have a full access with my own credentials.