Have a look at
man 5 hosts_access, but briefly...
You need a daemon specifier before the client specifier. For example,
ALL: 192.168. instead of just
192.168. You will also need an entry in /etc/hosts.deny to stop everybody else:
Code:
ALL: ALL@ALL, PARANOID
ALL is a keyword to specify all daemons. You can specify individual daemons as well, the man page has examples which should explain this better.