Tcpdump is a very powerful packet capture tool. This artical will show you how to filter tcp Flags packets with tcpdump and why. What are Tcp Flags? Tcpflags are some combination of S (SYN), F (FIN), P (PUSH), R (RST), U (URG), W (ECN CWR), E (ECN-Echo) or `.’ (ACK), or `none’ if no flags … Continue reading Tcpdump: Filter Packets with Tcp Flags