postinst is in dnsproxy 1.16-0.1build1.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | #!/bin/sh
set -e
case "$1" in
	configure)
		adduser --system --quiet --no-create-home --group dnsproxy
	;;
esac
# Automatically added by dh_installinit
if [ -x "/etc/init.d/dnsproxy" ]; then
	update-rc.d dnsproxy defaults >/dev/null
	invoke-rc.d dnsproxy start || exit $?
fi
# End automatically added section
 |