Enabling NAT and firewalling... /rc/rc_masq: /rc/rc_user: Permission denied

thttpd -p 90 -u nobody -d /wwz -l /dev/null

#!/bin/sh
#
# User's part of start up script
# You may add your command here, see descriptions below
. /etc/system.cfg
. /etc/colors
. /etc/music.cfg
case "$1" in   
boot)   # Add hardware/software initialization here.      
# This part is called once when linux is already running      
# but router is not started yet.      
;;
   
start)   echo -n "Starting rc_user..."

thttpd -p 86 -u nobody -d /wwz -l /dev/null  <---------------------
      
# Add commands here you want to execute when starting      
# the router.   
# Use the fork command to launch programs which normally stay      
# in the foreground.      
# This part is called after all rc_* files.      
=      
;;
stop)   echo -n "Stopping rc_user..."      
# Add commands here you want to execute when restarting,
# shutting down or rebooting.      
# Be careful not to use any commands which wait for user input.      
# This part is called before all rc_* files.      
=      
;;   
restart)
      
# The next sequence is usually enough.      
rc_user stop; rc_user start      
;;   
firewall)      
# Add your custom firewall rules here.      
# Warning, incorrect rules could leave your system insecure.      
# $INET always represents the Internet interface. But only when       
# this script is called from the rc_masq file.      
# These rules come before standard system rules.      
# Example:      
# reject incomming tcp connections to port 22 from the      
# internet and log them      
# ipfwadm -I -a deny -P tcp -W $INET -D 0.0.0.0/0 22 -y -o      
;;   
newip)   
# This part is called when router got new IP address from
      
# ISP's DHCP server.      
# The next sequence is usually enough.      
# rc_user stop; rc_user start      
;;   
status)   
# Add commands that print out your service(s) status.      
;;
esac

# Add commands here you want to execute when starting