Help Please , How SYN And ACK Packets Counted By The Server(CentOS)

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I have a question about tcp layer of linux kernel. I want, Syn and ack packages received to server will be counted.

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where total_syn_count and total_ack_count are variables to be defined and will be increased

Which files to be used ????

tcp_input.c ,tcp_output.c , tcp_ipv4.c

One thought on - Help Please , How SYN And ACK Packets Counted By The Server(CentOS)

  • Rather than modifying your kernel, you could just create iptables rules that match TCP SYN and ACK packets. When printed with “iptables -L -v”, you’ll get a count for packets that match.