The page used to say:
To set the system hostname, do something like the following: echo "hostname.domain.com" > /etc/hostname
However, setup-hostname only accepts short-form hostnames (without
.domain.com). Which is it?
IPv6 should not be optional
"Enabling IPv6 (Optional)"
The first presentation at SouthEast LinuxFest 2010 was titled "IPv6: No Longer Optional". That was 10 years ago. Please enable it by default.