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Forum Discussion

falooda_281506's avatar
falooda_281506
Icon for Nimbostratus rankNimbostratus
Aug 30, 2016

tcpdump

What is the syntax for running a TCPdump.. I want to run a tcpdump on my LTM to identify SSL errors from client to server.   Would I run the following:   tcpdump src host x.x.x.x   How would...
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security
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Stephan_Mierau's avatar
Stephan_Mierau
Icon for Employee rankEmployee
Aug 30, 2016

you could stop with ctrl +c the monitoring would be done with:

 

tcpdump -ni 0.0 -s0 -w file filter

 

0.0 means monitor on all interfaces, file could also be a director plus file eg /tmp/cap1.pcap; filter is the host, port, or combinations

 

if you deal with SSL/TLS problems write the capture to a file and the reanalyse with ssldump -r file