PREUN

/bin/sh

if [ $1 == 0 ]; then
         /sbin/service dnrd stop > /dev/null 2>&1
         /sbin/chkconfig --del dnrd > /dev/null 2>&1
fi

POSTIN

/bin/sh

if [ $1 == 1 ]; then
         /sbin/chkconfig --add dnrd > /dev/null 2>&1
fi