knock
small port-knock daemon
RUN apt-get update && \
apt-get install -y knockd
RUN apt-get update && \
apt-get install -y knockd
RUN apk add knock
RUN pacman -S --noconfirm knockd
RUN apt-get update && \
apt-get install -y knockd
RUN dnf install -y knock
RUN apt-get update && \
apt-get install -y knockd