ACZoom

At least one form of whitelisting is already available, the file INSTALL in the distribution explains it, here's a snippet:


# see "man 5 hosts_access" for details of the format of IP addresses,
#services, allow/deny options. Also see "man hosts_options"
#order of lines in this file is important, first matched IP address line
#is rule applied by hosts_access
#
# permanent whitelist addresses - these should always be allowed access

ALL: 127.0.0.1 : allow
ALL: 192.168.0. : allow

# permanent blacklist addresses - these should always be denied access

ALL: 10. : deny
ALL: 192. : deny
ALL: 172. : deny

# ----------------------------------------
# next section is the blockhosts section - it will add/delete entries in
# between the two marker lines (#---- BlockHosts Additions)
...