Thanks for the report. I can confirm this behaviour. Here are the reproduction steps, assuming you're in a Focal VM:
# apt install samba apache2 curl cifs-utils # cat << EOF >> /etc/samba/smb.conf [testshare] path = /testshare browseable = yes read only = yes guest ok = yes EOF # mkdir /testshare # dd if=/dev/random of=/testshare/test.data bs=1M count=1 # mount -t cifs -o guest //127.0.0.1/testshare /mnt # sed -i 's@DocumentRoot.*@DocumentRoot /mnt\n\t<Directory /mnt>\n\t\tRequire all granted\n\t</Directory>' /etc/apache2/sites-enabled/000-default.conf # systemctl restart apache2 # curl http://localhost/test.data -H 'Range: bytes=0-1' curl: (1) Received HTTP/0.9 when not allowed I marked the bug as Invalid because you can use "EnableMMAP Off" in order to get things working. I agree that this should perhaps be better documented, though. Can you confirm whether "EnableMMAP Off" works in your case? Also, "EnableSendFile Off" may be needed as well. ** Changed in: apache2 (Ubuntu) Status: Triaged => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1916391 Title: Range requests broken on CIFS mounted document root To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apache2/+bug/1916391/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
