![]() Related Read: Best Linux Bandwidth Monitoring Tools to Analyze Network Usage On top of this, Wireshark allows you to not only monitor traffic in real-time but also to save it to a file for later inspection. To do this, they rely on software programs called network packet analyzers, with Wireshark perhaps being the most popular and used due to its versatility and easiness of use. It is the responsibility of network engineers and system administrators alike to monitor and inspect the packets for security and troubleshooting purposes. This would allow pretty much any Internet host to send you traffic of any kind directly.In any packet-switched network, packets represent units of data that are transmitted between computers. Only when it's off do you want to unplug the cable.)Īnother reason is that it is possible your residential gateway has your computer setup in a DMZ. ![]() (Try leaving the cable plugged when you power down so that your TCP/IP stack has time to close all connections before signing off. TCP connection may be long-lived so it may have been established when the computer was plugged and "held" by the remote host when you unplugged your computer. This is to allow you to capture the TCP connection being initiated by the computer. Now, if this happens every time then look into capturing traffic to and from 151.139.128.14 over a longer period. One reason could be that your computer does initiate a TCP connection to 151.139.128.14 when it is plugged in and you are capturing FIN/ACK because the connection is now being closed. There are a few reasons you might see this traffic.
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