Hi Elmar,
tcp 0 0 192.168.100.101:50056 5.196.185.225:80 TIME_WAIT - tcp 0 0 192.168.100.101:35860 92.92.207.51:80 TIME_WAIT - tcp 0 0 192.168.100.101:40912 195.154.59.140:80 TIME_WAIT - tcp 0 0 192.168.100.101:58746 178.63.62.19:80 TIME_WAIT - tcp 0 0 192.168.100.101:40482 52.32.86.111:443 TIME_WAIT - tcp 0 0 192.168.100.101:43256 46.4.37.89:80 TIME_WAIT -
These connections are in TIME_WAIT, indicating that the connection has been closed by your host but are kept alive by the kernel for the duration of the TIME_WAIT interval to be properly handle any TCP still in-flight somewhere, see [1] for more details. The fact that the connections have no associated program is because the TIME_WAIT state is handled by the kernel, and from the application point of view, they do not exist anymore. You can see that the connections were to TCP/80 and TCP/443, so very likely caused by Firefox connecting to HTTP/HTTPS servers before you closed it. You'll be fine. [1]: https://en.wikipedia.org/wiki/Transmission_Control_Protocol#Protocol_operati...