In linux, when my machine requests an IP address it also sends the hostname back to the DHCP server. How can I stop my machine from sending back this hostname?
dhclient, possibly via NetworkManager.
You can find host-name in dhcp client configuration to remove or add hostname.
Debian / Ubuntu Linux -
Set hostname as you need on the following line: send host-name "yourhostname";
Open configuration file, enter:
Append hostname as you need on the following line :
It is also possible for NetworkManager to send the hostname; see