post_install() {
	getent group unbound &>/dev/null || groupadd -r unbound >/dev/null
	getent passwd unbound &>/dev/null || useradd -r -g unbound -d /etc/unbound -s /bin/false -c unbound unbound >/dev/null
}

post_remove() {
	getent passwd unbound &>/dev/null && userdel unbound >/dev/null
	getent group unbound &>/dev/null && groupdel unbound >/dev/null
	return 0
}
