Fixing file sharing in Ubuntu 20.04

So file sharing with my ReadyNAS file server stopped working after upgrading to Ubuntu 20.04. Turns out there was a change in behavior in Sambva v4.11 that disabled SMB1 protocol by default. It’ll be interesting to see how this panes out in the rest of the Linux community …

Here’s the fix, from Reddit; open /etc/samba/smb.conf using your favorite editor:

sudo mg /etc/samba/smb.conf

Add the following line to the [global] section:

client min protocol = CORE

Then restart Samba to have Nautilus (Files) working again:

sudo systemctl restart smbd.service

That’s it.