shield-trigger-ufw
locks out remote attackers trying password guessing
RUN apt-get update && \
apt-get install -y libpam-shield
RUN apt-get update && \
apt-get install -y libpam-shield
RUN apt-get update && \
apt-get install -y libpam-shield
RUN apt-get update && \
apt-get install -y libpam-shield