Also, the routing table, which gives information about the data packets’ journey through the network, can be displayed with the help of netstat. Thanks to the detailed statistics, you can also get information about the packets transferred since the last system start and any errors that occurred. For this reason, you should regularly check the ports opened by your system. As with DAQ, instrument, and File I/O communication, the process involves opening the connection, reading and writing the information, and closing the connection. Moreover, there is a possibility that a Trojan that is already in your system may install a so-called backdoor and open a corresponding port in the process. In addition, active TCP/IP ports on your endpoints can indicate potential malicious activity or exposure to cyber-attacks. Use the TCP/IP functions located on the Functions✽ata Communication»Protocols»TCP palette for TCP communication in LabVIEW. The big problem with these open ports is the fact that they offer third parties the opportunity to sneak malware into your system. These connections are established via the respective network address, which indicates, among other things, which port was opened in advance for data exchange. Knowing about the incoming and outgoing connections of your computer or server gives you a big advantage in the fight against disproportionate traffic and malicious software. To do this, use the Get-NetTCPConnection cmdlet, which allows you to view a list of active TCP/IP connections and the local and remote addresses and ports being used.
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