I'd prefer my hostname to be hidden (or a fake hostname to be shown - both variants are interesting actually) from my network peers (including routers ad DHCP servers).
I believe my IP and MAC addresses are enough for them to know. How to achieve this in Ubuntu?
In practice I've seen SOHO wireless routers to detect client's (clientside-set) hostnames showing them on their DHCP lease tables. Not sure if this works with Ubuntu, but with Windows I'm pretty sure. I'd like to avoid this in all the OSes I use, Ubuntu being the main of them.