Вроде все нормально пользователи натятся в интернет ходят, пинги в локалку с сервера идут. А интернет на самом сервере не работает,пинги в инет не идут, сквид неработает...
Что может быть не так? Файл фаервола ниже. Очень прошу помочь...
#!/bin/sh
iptables --flush
iptables -t nat --flush
clear
######################################################################
#####
#
# 1. Configuration options.
#
#
# 1.1 Internet Configuration.
#
INET_IFACE="ppp0"
#
# 1.2 Local Area Network configuration.
#
#
LAN_IP="192.168.0.1"
LAN_IP_RANGE="192.168.0.0/24"
LAN_IFACE="eth1"
#
# 1.3 VPN Configuration.
#
VPN_IP="192.168.1.1"
VPN_IP_RANGE="192.168.1.0/24"
VPN_IFACE="ppp+"
#
# 1.4 Localhost Configuration.
#
LO_IFACE="lo"
LO_IP="127.0.0.1"
#
# 1.5 IPTables Configuration.
#
IPTABLES="iptables"
######################################################################
#####
#
# 2. Module loading.
#
/sbin/depmod -a
#
# 2.1 Required modules
#
/sbin/modprobe ip_tables
/sbin/modprobe ip_conntrack
/sbin/modprobe iptable_filter
/sbin/modprobe iptable_mangle
/sbin/modprobe iptable_nat
/sbin/modprobe ipt_LOG
/sbin/modprobe ipt_limit
/sbin/modprobe ipt_state
#
# 2.2 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
/sbin/modprobe ip_nat_irc
######################################################################
#####
#
# 3. /proc set up.
#
#
# 3.1 Required proc configuration
#
echo "1" > /proc/sys/net/ipv4/ip_forward
#
# 3.2 Non-Required proc configuration
#
#echo "1" > /proc/sys/net/ipv4/conf/all/rp_filter
#echo "1" > /proc/sys/net/ipv4/conf/all/proxy_arp
#echo "1" > /proc/sys/net/ipv4/ip_dynaddr
######################################################################
#####
# 4. rules set up.
#
######
# 4.1 Filter table
#
#
# 4.1.1 Set policies
#
$IPTABLES -P INPUT DROP
$IPTABLES -P OUTPUT DROP
$IPTABLES -P FORWARD DROP
#
# 4.1.2 Create userspecified chains
#
$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
#
# 4.1.3 Create content in userspecified chains
#
$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
$IPTABLES -A allowed -p TCP -j DROP
#
# TCP rules
#
#$IPTABLES -A tcp_packets -p TCP -s 0/0 --dport 21 -j allowed
#$IPTABLES -A tcp_packets -p TCP -s 0/0 --dport 22 -j allowed
#$IPTABLES -A tcp_packets -p TCP -s 0/0 --dport 25 -j allowed
#$IPTABLES -A tcp_packets -p TCP -s 0/0 --dport 80 -j allowed
#
# UDP ports
#
#$IPTABLES -A udp_packets -p UDP -s 0/0 --destination-port 53 -j ACCEPT
#
# ICMP rules
#
$IPTABLES -A icmp_packets -p ICMP -s 0/0 --icmp-type 8 -j ACCEPT
$IPTABLES -A icmp_packets -p ICMP -s 0/0 --icmp-type 11 -j ACCEPT
#
# 4.1.4 INPUT chain
#
$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 $VPN_IFACE -s $VPN_IP_RANGE -j ACCEPT
# $IPTABLES -A INPUT -p ALL -i $LO_IFACE -s $VPN_IP -j ACCEPT
$IPTABLES -A INPUT -p ALL -i $LO_IFACE -j ACCEPT
#
# Special rule for DHCP requests from LAN, which are not caught properly
# otherwise.
#
$IPTABLES -A INPUT -p UDP -i $LAN_IFACE --dport 67 --sport 68 -j ACCEPT
#
# Rules for incoming packets from the internet.
#
$IPTABLES -A INPUT -p ALL -i $INET_IFACE -m state --state ESTABLISHED,RELATED -j ACCEPT
$IPTABLES -A INPUT -p TCP -i $INET_IFACE -j tcp_packets
$IPTABLES -A INPUT -p UDP -i $INET_IFACE -j udp_packets
$IPTABLES -A INPUT -p ICMP -i $INET_IFACE -j icmp_packets
#
#SQUID
#
$IPTABLES -A INPUT -s 192.168.0.0/24 -p tcp --dport 3128 -j DROP
$IPTABLES -A INPUT -p tcp --dport 3128 -s 192.168.1.0/24 -j ACCEPT
#
# 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 "IPT INPUT packet died: "
#
# 4.1.5 FORWARD chain
#
$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
#
# 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 "IPT FORWARD packet died: "
#
# 4.1.6 OUTPUT chain
#
$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
$IPTABLES -A OUTPUT -p ALL -s $VPN_IP -j ACCEPT
$IPTABLES -A OUTPUT -p ALL -o $INET_IFACE 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 "IPT OUTPUT packet died: "
######
# 4.2 nat table
#
#
# 4.2.1 POSTROUTING chain
#
#
# Enable simple IP Forwarding and Network Address Translation
#
# if [ $PPPOE_PMTU=="yes" ] ; then
# $IPTABLES -t nat -A POSTROUTING -p tcp --tcp-flags SYN,RST SYN \
# -j TCPMSS --clamp-mss-to-pmtu
# fi
$IPTABLES -t nat -A POSTROUTING -o $INET_IFACE -j MASQUERADE# $IPTABLES -t nat -A PREROUTING -s 192.168.1.0/24 -p tcp -m tcp --dport 80 -j REDIRECT --to-ports 3128
#
# 1. Configuration options.
#
#
# 1.1 Internet Configuration.
#
INET_IFACE="ppp0"
#
# 1.2 Local Area Network configuration.
#
#
LAN_IP="192.168.0.1"
LAN_IP_RANGE="192.168.0.0/24"
LAN_IFACE="eth1"
#
# 1.3 VPN Configuration.
#
VPN_IP="192.168.1.1"
VPN_IP_RANGE="192.168.1.0/24"
VPN_IFACE="ppp+"
#
# 1.4 Localhost Configuration.
#
LO_IFACE="lo"
LO_IP="127.0.0.1"
#
# 1.5 IPTables Configuration.
#
IPTABLES="iptables"
######################################################################вот ну зачем брать дурной пример. Ты думаешь кто-то читает твои переменные? тебе самому легко читать свой фаер???
Смотри цепочку OUTPUT & INPUT на предмет Localhost разрешений!!!