NetStat Displays all the inbound and outbound connections to your computer and lists all open ports. Additionally, NetStat maps open ports and established connections to the owning application. Network scanner Would you like to find all the nodes in a network (including remote networks)? No problem. Just enter the IP range to check and you will quickly get a list of nodes and the services running on them. This tool also discovers some Trojans and spyware. Service & port scanner Allows you to check for all open ports and running services (HTTP, POP3, MS SQL, Oracle and 50 other). It not only checks if the port is open, but also sends a request and checks whether a reply meets specific criteria. It can also discover some Trojans and spyware. TCP/IP workshop Provides you with the ability to establish low-level TCP and UDP connections to troubleshoot and test different networking services. With this tool, you can send raw data to any port on a remote computer. You can also listen in on any local port to see all incoming data. NetCheck With this tool you can check the quality of network hardware in your LAN.