Just for the record: one more reason to avoid duplicate hostnames is that some DHCP servers (including ones run by some ISPs) (re-)assign IP addresses based on the hostname a host supplies to it ("hey I know that host, let's re-assign its previous IP"), and that could result in real breakage when multiple computers get assigned the same IP address somehow...
Just for the record: one more reason to avoid duplicate hostnames is that some DHCP servers (including ones run by some ISPs) (re-)assign IP addresses based on the hostname a host supplies to it ("hey I know that host, let's re-assign its previous IP"), and that could result in real breakage when multiple computers get assigned the same IP address somehow...