A slim Docker image containing network tools
net-tools
nmap
netcat-openbsd
docker run --rm -it --network=host unfor19/net-tools netstat -tupln | grep LISTEN
docker run --rm -it --network=host unfor19/net-tools nmap -p 8080 -n localhost
docker run --rm -it --network=host unfor19/net-tools nc -w 1 -v localhost 8080