well, I for one welcome our packet reading tube cleaning overlords.

Nephyrin Zey wrote:
> The nuke exploit works as follows:
>
> Connect to a server via TCP (rcon, does anything else use TCP? I have
> no idea.) on its port.
> Send a million garbage packets
> ???
> Profit
>
> The server goes insane handling them.
> Solution:
> Limit incoming TCP packets to ~1/second from any given IP on that port, *OR*
> Block TCP access to the server's port except from trusted people.
>
> Linux IPtables rules:
> iptables -A INPUT -p tcp --dport 27015 -m hashlimit --hashlimit-mode
> srcip,dstip,dstport --hashlimit 1/sec --hashlimit-burst 1
> --hashlimit-name TF_PACKET_LIMIT -j ACCEPT
> iptables -A INPUT -p tcp --dport 27015 -j DROP
>
> /etc/init.d/iptables save
> /etc/init.d/iptables start
>
> (Note: you probably shouldn't enable iptables blindly if you don't
> know what you're doing)
>
> Windows:
> Block TCP to 27015 except for trusted people. Or something. Someone
> who admins window servers will need to guide you!
>
> - Neph
> (sv_benchmark_force_start fix coming in a few minutes)
>
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