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> blacklist IPs that hit unknown ports so what happens when someone hits an unknown port on your system from every IP on the internet?
by munin 10y ago
> blacklist IPs that hit unknown ports
so what happens when someone hits an unknown port on your system from every IP on the internet?
- developer2 10y agoYou reject all packets from "bad IPs" for a period of time. 5 minutes, 30 minutes, whatever. If you're in a position to spoof IPs and you manage to spoof one I need to connect from (or I make a mistake and get myself blacklisted), it's a temporary inconvenience. That, and having out-of-band access to the server always helps. ;)