Tomcat as non root user

 

run 

setcap cap_net_bind_service+ep /path/to/bin/java

ex: setcap cap_net_bind_service+ep /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java



How to list open ports and application using them in Windows

  netstat -abn or netstat -a -n -p tcp -o

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