# docker base image for basic networking tools FROM ubuntu:focal RUN DEBIAN_FRONTEND=noninteractive apt-get update && apt-get -y --no-install-recommends install \ net-tools tcpdump telnet traceroute curl iperf3 knot-host openssh-client mtr-tiny socat nano vim-tiny \ nmap iputils-ping \ && rm -rf /var/lib/apt/lists/* VOLUME [ "/root" ] CMD [ "sh", "-c", "cd; exec bash -i" ]