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Anyone know of a tool to test tcp connections in linux.. I'm looking for something to tell me if it experienced a dropped packet or such

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3 Answers 3

up vote 3 down vote accepted

tcpdump serves this purpose. http://www.tcpdump.org/tcpdump_man.html

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tcptrack - Monitor TCP connections on the network


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Open a tcp port with netcat so for example to open port 80 tcp I would use:

nc -l 80


Check the tcp port with telnet so to connect to port 80:

telnet destination_ip 80

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