03-12-2013
Not in any standard way. You can get a tool that goes promiscuous on your LAN and watch it all go by, but there is no spec to save anything, just transfer. You can get some idea of who talks to who, locally, if you query arp cache, but that is different on every OS. Firewalls and proxy servers can log all activity passing through them, not entire messages but packet headers.
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LEARN ABOUT CENTOS
dshbak
DSHBAK(1) General Commands Manual DSHBAK(1)
NAME
dshbak - format output from pdsh command
SYNOPSIS
dshbak [OPTION]..
DESCRIPTION
The dshbak program formats pdsh pdsh output for humans. Output from each node is consolidated, the leading "node:" is stripped, and a
header block with the node name is added. If the -c option is specified, nodes with identical output are not displayed twice; instead, the
header will contain a list of nodes. The list of nodes is further compressed into node ranges if the node names have a numeric suffix.
OPTIONS
-h Display a summary of command line options.
-c Do not display identical output from nodes twice. Instead, print the list of nodes with matching output in the header block.
-d DIR Write consolidated node output to separate files in output directory DIR. Any existing files will be overwritten.
-f With -d, force creation of specified DIR.
ORIGIN
A rewrite of IBM dshbak(1) by Jim Garlick
<garlick@llnl.gov> on LLNL's ASCI Blue-Pacific IBM SP system.
SEE ALSO
pdsh(1)
http://pdsh.googlecode.com
2011-02-26 DSHBAK(1)