How to find the ports that a linux machine listen on Posted on July 15, 2020 by Henrik Reply sudo netstat -tulpn | grep LISTEN
Great site for testning open ports from internet Posted on November 10, 2019 by Henrik Reply https://www.yougetsignal.com/tools/open-ports/
Display Dynamic ports windows Posted on June 26, 2019 by Henrik Reply From a CMD netsh int ipv4 show dynamicport tcp netsh int ipv4 show dynamicport udp netsh int ipv6 show dynamicport tcp netsh int ipv6 show dynamicport udp