Author of this application is Tom Poindexter and Keith Vetter.
sockspy [L1 ] "watch[es] the conversation of a Tcp client and server", according to its quite readable README [L2 ]. Although "not a replacement for heavy duty tools such as 'tcpdump' and other passive packet sniffers" (Ethereal [L3 ], ...), it's easy to install, configure, and launch, and pleasingly convenient for "debugging Tcp client/server programs, examining protocols and diagnosing network problems".
sockspy is nearly indispensable for any network programmer or network administrator, quite apart from any interest they might have in Tcl. [Compare to tcpdump, ...]
Version 2.0 of sockspy is available on sourceforge at [L4 ]. [L5 ] documents sockspy.
Among the new features are:
Keith has also updated [L6 ] Tom's version 1.0 tutorial.
Keith Vetter 2003-01-09 - Version 2.4 beta is available at [L7 ].
Among the new features are:
I'll update the version on sourceforge shortly (as soon as I relearn how to do it).
Sebastian Wangnick has an interesting complement to sockspy he calls ipc. [Also explain relations to sniffers--tcpdump, ethereal, ..., and pktsrc ] [Also moni.]
CL plans a couple of articles (late?) in 2002 on sockspy applications. [Will December 2002 *Sys Ad* magazine be on-line?]