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DNS is a thing. Keep a list of accepted domains. As DNS resolution occurs populate a cache of IP addresses that you can then whitelist. Not hard, a competent de
by PaulRobinson 9y ago
DNS is a thing. Keep a list of accepted domains. As DNS resolution occurs populate a cache of IP addresses that you can then whitelist. Not hard, a competent developer could build something solid in a week or so using existing tools.
- lmz 9y agoDnsmasq already supports this. It can add resolved IPs of hostnames matching a pattern to ipset ("--ipset" is the option).