Date: 2008jun19 OS: Linux, Windows Q. What is the contents of my network traffic? A. You can use Wireshark to peek into the packets that are being moved around on your LAN. You can that many passwords (eg ftp) are sent in-the-clear. RedHat/Fedora/CentOS users do:

dnf install wireshark

Windows version can be downloaded here: http://www.wireshark.org/ See also: http://www.davekb.com/search.php?target=netstat http://www.davekb.com/search.php?target=lsof http://www.davekb.com/search.php?target=ifconfig