For example when creating a big file for an iSCSI image file, a fast way is to use “fallocate”:

fallocate -l 100GB disk01.img

Go to /etc/ifplugd/action.d/ and rename the ifupdown file to ifupdown.original
Then do: cp /etc/wpa_supplicant/ifupdown.sh ./ifupdown
Finally: reboot

Send hostname to DHCP Server:
/etc/dhcp/dhclient.conf:
send host-name “xxxx”;

Think it should be without the domain name!

At the windows dhpc server check that the option “Dynamically update DNS A and PTR records for DHCP clients that do not request updates” is enabled.