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Let's say I have a third-party java application. It is a .jar which I run in a usual manner: How can I monitor what it sends and gets through the network on a Debian-based system? I would like to know which servers it connects to and what data it sends and gets.
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Use netstat. Note that it will only provide the socket information. For more detailed analysis, you can use wireshark. More info: http://en.wikipedia.org/wiki/Netstat, http://linux.die.net/man/8/netstat, and http://linux.die.net/man/1/wireshark | |||
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