WTware RDP client

Is it possible to add the DNS registration of the host in the DNS server?
Using the clienthostname parameter, I don't know if domain parameter could be used or adding a new parameter.
Using the default DNS or adding a specific DNS parameter.
Introducing the nsupdate parameter, it could be delete all registered and registered the new one.
Sush as:

nsupdate
server ns.bar44.com
zone bar44.com
update delete somehost.bar44.com. A
update add somehost.bar44.com. 86400 A 10.10.10.1
send

In Microsoft world, Windows DNS updated by Windows DHCP server, and it works. WTware report hostname from clienthostname= to DHCP.

There is no minimalistic nsupdate in busybox. In my Debian, /usr/bin/nsupdate binary requires about 15 megabytes of libraries to run. Sorry, I don't want to increase distributive size on 15Mb*4 (4 architecture wtware runs on) to register record in DNS.

This works for me (in a Windows environment):

You can change the DNS settings in your DHCP scope to
- Enable DNS dynamic updates
-- Dynamically update DNS records only if requested
- Discard A and PTR records when lease is deleted
- Dynamically update DNS records for DHCP clients that do not request updates
Your DHCP server needs to be authorized in your domain if you require secure DNS updates.

You can also configure a specific DHCP policy if you don't want to configure the whole DHCP scope.
Applying a condition to the DHCP policy where Vendor Class Equals WTware* should be sufficient.

Hope it helps.