Its possible using TCPDUMP and wireshark. however its a bit of a manual process (open the pcap in wireshark, select the correct tcp stream, and extract the file). I did this to show a vulnerability in how medical images were transmitted in a university hospital once :)
Here are some guides, maybe it can serve as a jumping off point? http://packetlife.net/blog/2009/jul/13/quick-packet-capture-data-extraction/ http://wiki.wireshark.org/TCP_Reassembly There are some C# libraries specifically for this: http://www.codeproject.com/KB/IP/TcpRecon.aspx Not sure if anything exists explicitly for python though. -Matty On Wed, Aug 31, 2011 at 9:35 AM, king6c...@gmail.com <king6c...@gmail.com> wrote: > hi, > This is a question not specific to Python,but its related somehow,and I > believe I can get some help from your fellow:) > I am doing my work on a server service program on Linux that processes the > packages sent to the socket it listens.Their is already a old such service > listening on the port doing its job,and > I can't stop the old server service, and I need to get the packages sent to > the old server and send them to my new server service to make sure it works > well .How can I get the package and resent them to my new service? Is there > such a tool or is there some functionality that tools such as tcpdump > already provides? > Thanks:) > > -- > http://mail.python.org/mailman/listinfo/python-list > > -- http://mail.python.org/mailman/listinfo/python-list