network programming - Protecting TCP server -


i've been thinking possible attacks on server software , looking information on how others have solved problem.

let's have server listening on port 1000 connections. can write code connect port , start sending bad data easily. effective way protect against this? if @ wireshark capture first 3 packets tcp 3-way handshake; after application data.

validating incoming data seems make sense, started thinking world of warcraft. assume there kind of mechanism in place make sure what's connecting wow server indeed wow client (or maybe there's not).

thanks information on topic.

validating incoming data answer. if program detects invalid data, disconnect client.

low-level tcp , dos/ddos attacks better handled @ system level dedicated firewall application or device. designed detect , handle sort of thing.


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