Nassau is a Free and Portable Network Connection Viewer Utility created by run.to/sz. It can be used to View, List, or Display All Network Connections and starts minimized to the taskbar.
NetCheck is a Free, simple Internet Connection Tester. It can be used to check the status of your internet connection by attempting DNS resolve and TCP connection tests.
Connection Monitor is a Free Stand Alone Portable utility that can be used to monitor inbound and outbound socket connections. knowing which network and internet connections are taking place can help you keep your network secure.
TCPView is a portable tool that can be used to display a detailed list and current state of all TCP and UDP endpoint connections and the process name running each endpoint. It provides more informative information than the Netstat program that ships with Microsoft Windows and includes a command line version called Tcpvcon that offers the same functionality.
