proxycheck is a simple tool that may be used to check whether a given host or set of hosts has open proxy server running. See http://www.corpit.ru/mjt/proxycheck.html for more information. proxycheck was written by Michael Tokarev and comes ready to contribute results to DSBL.org. WWW: http://www.corpit.ru/mjt/proxycheck.html - Paul Chvostek