SPUG:Need a BiDi TCP Tee

[Andrew Sweger]

While these tools may not be exactly what you're looking for, they cover
this area very well. There may be higher level tools that reconstruct
application layer data (I think there's an smtp sniffer that uses
tcpdump, for example).

  tcpdump   

    http://www.tcpdump.org/

    An all purpose traffic snooper

  netcat    

    http://netcat.sf.net/

    The swiss-army knife of user-land socket tools

  socat     

    http://www.dest-unreach.org/socat/

    socat is a relay for bidirectional data transfer between two
    independent data channels.

  netsed    

    (Not sure where this is from, available in Debian)
  
    The network packet altering stream editor

On Mon, 17 Feb 2003, Fred Morris wrote:

> Need to be able to selectively, or heck just wholesale, log off traffic in
> both directions to a file, along with logging connects and disconnects.
> Sort of a generic instrumented proxy for TCP connections. Although if I had
> my way I'd do a lot more with it.

-- 
Andrew B. Sweger -- The great thing about multitasking is that several
                                things can go wrong at once.