请高手进来帮我看看这个脚本为什么报错!!! line 6 failed.?????

tanshichun

#!/bin/sh
# example.firewall - Initial SIMPLE IP Firewall script for Linux 2.4.x and iptables
###########################################################################
# Configuration options.
# Internet Configuration.
INET_IP="192.168.0.254"
INET_SERVER="192.168.0.72"
INET_IFACE="eth1"
INET_BROADCAST="192.168.0.255"
###########################################################################
#Lan configuration
# your LAN's IP range and localhost IP. /24 means to only use the first 24
# bits of the 32 bit IP address. the same as netmask 255.255.255.0
LAN_IP="192.168.1.254"
LAN_SERVER="192.168.1.1"
LAN_IP_RANGE="192.168.1.0/24"
LAN_BROADCAST="192.168.1.255"
LAN_IFACE="eth0"
###########################################################################
# Localhost Configuration.
LO_IFACE="lo"
LO_IP="127.0.0.1"
###########################################################################
# IPTables Configuration.
IPTABLES="/usr/sbin/iptables"
###########################################################################
# Module loading.
# Needed to initially load modules
/sbin/depmod -a
# Required modules
/sbin/modprobe ip_tables
/sbin/modprobe ip_conntrack
/sbin/modprobe iptable_filter
/sbin/modprobe iptable_nat
/sbin/modprobe ipt_LOG
/sbin/modprobe ipt_limit
/sbin/modprobe ipt_state
##########################################################################
# Non-Required modules
#/sbin/modprobe ipt_owner
#/sbin/modprobe ipt_REJECT
#/sbin/modprobe ipt_MASQUERADE
#/sbin/modprobe ip_conntrack_ftp
#/sbin/modprobe ip_conntrack_irc
/sbin/modprobe ip_nat_ftp
###########################################################################
# /proc set up.
# Required proc configuration
echo "1" > /proc/sys/net/ipv4/ip_forward
###########################################################################
# rules set up.
# Filter table
# Set default policies
$IPTABLES -P INPUT DROP
$IPTABLES -P OUTPUT DROP
$IPTABLES -P FORWARD DROP
###########################################################################
# Create userspecified chains
# Create chain for bad tcp packets
$IPTABLES -N bad_tcp_packets
# Create separate chains for ICMP, TCP and UDP to traverse
$IPTABLES -N allowed
$IPTABLES -N tcp_packets
$IPTABLES -N udp_packets
$IPTABLES -N icmp_packets
###########################################################################
# Create content in userspecified chains
# bad_tcp_packets chain
$IPTABLES -A bad_tcp_packets -p tcp --tcp-flags SYN,ACK SYN,ACK \
-m state --state NEW -j REJECT --reject-with tcp-reset
$IPTABLES -A bad_tcp_packets -p tcp ! --syn -m state --state NEW -j LOG \
--log-prefix "New not syn:"
$IPTABLES -A bad_tcp_packets -p tcp ! --syn -m state --state NEW -j DROP
###########################################################################
# allowed chain
$IPTABLES -A allowed -p TCP --syn -j ACCEPT
$IPTABLES -A allowed -p TCP -m state --state ESTABLISHED,RELATED -j ACCEPT
$IPTABLES -A allowed -p TCP -j DROP
############################################################################
# TCP rules for the services of ftp, ssh, smtp,http,pop3
#
$IPTABLES -A tcp_packets -p TCP –m multiport --dports 21,22,25,80,110 -j allowed
############################################################################
# UDP rules for the services of dns
#
$IPTABLES -A udp_packets -p UDP --destination-port 53 -j ACCEPT
#
# In Microsoft Networks you will be swamped by broadcasts. These lines
# will prevent them from showing up in the logs. Uncomment the following
# line to make the policy active if you have such a network
#
#$IPTABLES -A udp_packets -p UDP -i $INET_IFACE -d $INET_BROADCAST \
#--destination-port 135:139 -j DROP
#$IPTABLES -A udp_packets -p UDP -i $LAN_IFACE -d $LAN_BROADCAST \
#--destination-port 135:139 -j DROP
###########################################################################
# ICMP rules
#
$IPTABLES -A icmp_packets -p ICMP --icmp-type 8 -j ACCEPT
###########################################################################
# INPUT chain
#
# Bad TCP packets you don't want.
#
$IPTABLES -A INPUT -p tcp -j bad_tcp_packets
#
# Rules for special networks not part of the Internet
#
$IPTABLES -A INPUT -p ALL -i $LAN_IFACE -s $LAN_IP_RANGE -j ACCEPT
$IPTABLES -A INPUT -p ALL -i $LO_IFACE -s $LO_IP -j ACCEPT
$IPTABLES -A INPUT -p ALL -i $LO_IFACE -s $LAN_IP -j ACCEPT
$IPTABLES -A INPUT -p ALL -i $LO_IFACE -s $INET_IP -j ACCEPT
# Drop the packet from Internet
#
$IPTABLES -A INPUT -p ALL -i $INET_IFACE –j DROP
# Log weird packets that don't match the above.
#
$IPTABLES -A INPUT -m limit --limit 3/minute --limit-burst 3 -j LOG \
--log-level DEBUG --log-prefix " INPUT packet died: "
###########################################################################
# FORWARD chain
#
# Bad TCP packets we don't want
#
$IPTABLES -A FORWARD -p tcp -j bad_tcp_packets
#
# Accept the packets we actually want to forward
#
$IPTABLES -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT
$IPTABLES -A FORWARD –p tcp -i $LAN_IFACE -j tcp_packets
$IPTABLES -A FORWARD –p udp -i $LAN_IFACE -j udp_packets
$IPTABLES -A FORWARD -p icmp -i $LAN_IFACE -j icmp_packets
#
# Log weird packets that don't match the above.
#
$IPTABLES -A FORWARD -m limit --limit 3/minute --limit-burst 3 -j LOG \
--log-level DEBUG --log-prefix "FORWARD packet died: "
#
# OUTPUT chain
#
# Bad TCP packets we don't want.
#
$IPTABLES -A OUTPUT -p tcp -j bad_tcp_packets
#
# Special OUTPUT rules to decide which IP's to allow.
#
$IPTABLES -A OUTPUT -p ALL -s $LO_IP -j ACCEPT
$IPTABLES -A OUTPUT -p ALL -s $LAN_IP -j ACCEPT
$IPTABLES -A OUTPUT -p ALL -s $INET_IP -j ACCEPT
#
# Log weird packets that don't match the above.
#
$IPTABLES -A OUTPUT -m limit --limit 3/minute --limit-burst 3 -j LOG \
--log-level DEBUG --log-prefix "OUTPUT packet died: "
###########################################################################
# nat table
$IPTABLES -t nat -A PREROUTING  -i $INET_IFACE -j DNAT --to-destination $LAN_SERVER
# POSTROUTING chain
$IPTABLES -t nat -A POSTROUTING -o $INET_IFACE -j SNAT --to-source $INET_IP

is02bing

有时候dos文本格式与unix文本格式的差异让人抓狂…… FYI

tanshichun

是文本格式的问题吗?我是从windows xp中用记事本写的,用VI打开修改过,应该不是这个问题吧?!

tanshichun

[root@linserv local]# bash firewall.sh.txt
'sbin/depmod: malformed/unrecognized option '-a
depmod 3.1-pre5 -- part of module-init-tools
depmod -[aA] [-n -e -v -q -V -r -u]
      [-b basedirectory] [forced_version]
depmod [-n -e -v -q -r -u] [-F kernelsyms] module1.o module2.o ...
If no arguments (except options) are given, "depmod -a" is assumed

depmod will output a dependancy list suitable for the modprobe utility.


Options:
        -a, --all            Probe all modules
        -n, --show           Write the dependency file on stdout only
        -V, --version        Print the release version
        -h, --help           Print this usage message

The following options are useful for people managing distributions:
        -b basedirectory
            --basedir basedirectory    Use an image of a module tree.
        -F kernelsyms
            --filesyms kernelsyms      Use the file instead of the
                                       current kernel symbols.
not found.le ip_tables
not found.le ip_conntrack
not found.le iptable_filter
not found.le iptable_nat
not found.le ipt_LOG
not found.le ipt_limit
not found.le ipt_state
: No such file or directoryproc/sys/net/ipv4/ip_forward
: No such file or directorysbin/iptables
: No such file or directorysbin/iptables
: No such file or directorysbin/iptables
: No such file or directorysbin/iptables
: No such file or directorysbin/iptables
: No such file or directorysbin/iptables
: No such file or directorysbin/iptables
: No such file or directorysbin/iptables
: No such file or directorysbin/iptables
: No such file or directorysbin/iptables
: No such file or directorysbin/iptables
: No such file or directorysbin/iptables
: No such file or directorysbin/iptables
: No such file or directorysbin/iptables
: No such file or directorysbin/iptables
: No such file or directorysbin/iptables
: No such file or directorysbin/iptables
: No such file or directory/sbin/iptables
: No such file or directory/sbin/iptables
: No such file or directory/sbin/iptables
: No such file or directory/sbin/iptables
: No such file or directory/sbin/iptables
: No such file or directory/sbin/iptables
: No such file or directory/sbin/iptables
: No such file or directory/sbin/iptables
: No such file or directory/sbin/iptables
: No such file or directory/sbin/iptables
: No such file or directory/sbin/iptables
: No such file or directory/sbin/iptables
: No such file or directory/sbin/iptables
: No such file or directory/sbin/iptables
: No such file or directory/sbin/iptables
: No such file or directory/sbin/iptables
: No such file or directory/sbin/iptables
: No such file or directory/sbin/iptables
: No such file or directory/sbin/iptables
: No such file or directory/sbin/iptables
: No such file or directory/sbin/iptables
: No such file or directory/sbin/iptables
ERROR INFOMATION!!!! WHY!