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Alls I can say is I see a whole bunch of ips blocked through that gateway now that I have the firewall on.
ports blocked for a couple of exploits. i knew my mysql installation was insecure but never thought it would matter...
Traffic on a port does not equal an exploit. There is ALWAYS traffic on lots of different ports when you have connectivity to the Internet. Just because you don't understand the nature of the traffic does not mean there is a hacker at the other end of it. Get the IP, use an IP location search tool, do WHOIS lookups if you're curious about the traffic, but don't assume you're being hacked.
I mean, it's good to be at least a little paranoid, but this reminds me a lot of the newbies that come onto a forum saying "my computer has a virus" just because their computer is doing something they don't understand.
The software firewalls are mostly irrelevant as almost all modern modems act as a hardware (NAT) firewall. Where they come in useful is for blocking outbound traffic from the computer itself and when you're connecting to public networks.