utility updates
FROM ubuntu:16.04
-RUN apt-get update && apt-get install -y openssh-server python python-pip dig iputils-ping
+RUN apt-get update && apt-get install -y openssh-server python python-pip dnsutils iputils-ping git vim
RUN mkdir /var/run/sshd
RUN echo 'root:antidotepassword' | chpasswd
RUN sed -i 's/PermitRootLogin prohibit-password/PermitRootLogin yes/' /etc/ssh/sshd_config
