#!/bin/sh
#
#  
office=192.168.0.2

# 
admin=192.168.0.3

# 
server0=192.168.0.1
#server1=10.15.1.2

#    
iface_cli=eth1

#     
iface_world=ppp0

#  
net_cli=192.168.0.0/24

#,      
conf_port=5555
user_port1=5555
user_port2=5555

#     
#   ,    
#    ,    - 
#   ,   
echo "1" > /proc/sys/net/ipv4/ip_forward
#   
iptables -t filter -F
iptables -t filter -X
iptables -t nat -F
iptables -t nat -X

 
#    DROP:   
iptables -t filter -P INPUT DROP
iptables -t filter -P FORWARD DROP
iptables -t filter -P OUTPUT DROP

#      
iptables -t filter -A INPUT -p icmp -j ACCEPT
iptables -t filter -A FORWARD -p icmp -j ACCEPT
iptables -t filter -A OUTPUT -p icmp -j ACCEPT

 
#     
iptables -t filter -A INPUT -d 127.0.0.1 -j ACCEPT
iptables -t filter -A OUTPUT -s 127.0.0.1 -j ACCEPT


#      
iptables -t filter -A INPUT -i $iface_world -j ACCEPT
iptables -t filter -A OUTPUT -o $iface_world -j ACCEPT

 
# DNS. ,     TCP   UDP
iptables -t filter -A INPUT -p tcp --sport 53 -j ACCEPT
iptables -t filter -A FORWARD -p tcp --sport 53 -j ACCEPT
iptables -t filter -A FORWARD -p tcp --dport 53 -j ACCEPT
iptables -t filter -A OUTPUT -p tcp --dport 53 -j ACCEPT
iptables -t filter -A INPUT -p udp --sport 53 -j ACCEPT
iptables -t filter -A FORWARD -p udp --sport 53 -j ACCEPT
iptables -t filter -A FORWARD -p udp --dport 53 -j ACCEPT
iptables -t filter -A OUTPUT -p udp --dport 53 -j ACCEPT

 
#         SSH
#iptables -t filter -A INPUT -p tcp -s $office -d $server0 --dport 22 -j ACCEPT
#iptables -t filter -A OUTPUT -p tcp -d $office -s $server0 --sport 22 -j ACCEPT
#iptables -t filter -A INPUT -p tcp -s $admin -d $server0 --dport 22 -j ACCEPT
#iptables -t filter -A OUTPUT -p tcp -d $admin -s $server0 --sport 22 -j ACCEPT

#     :)
#   
#
#iptables -t filter -A INPUT -s $admin -j ACCEPT
#iptables -t filter -A FORWARD -s $admin -j ACCEPT
#iptables -t filter -A FORWARD -d $admin -j ACCEPT
#iptables -t filter -A OUTPUT -d $admin -j ACCEPT
#
#iptables -t filter -A INPUT -s $office -j ACCEPT
#iptables -t filter -A FORWARD -s $office -j ACCEPT
#iptables -t filter -A FORWARD -d $office -j ACCEPT
#iptables -t filter -A OUTPUT -d $office -j ACCEPT


# Stargazer configurator
iptables -t filter -A INPUT -p tcp -s $net_cli -d $server0 --dport $conf_port -j ACCEPT
iptables -t filter -A OUTPUT -p tcp -d $net_cli -s $server0 --sport $conf_port -j ACCEPT
 
# UDP stargazer InetAccess
iptables -t filter -A INPUT -p udp -s $net_cli --sport $user_port2 -d $server0 --dport $user_port1 -j ACCEPT
iptables -t filter -A OUTPUT -p udp -d $net_cli --dport $user_port1 -s $server0 -j ACCEPT

#        squid       2 
#   HTTP 
iptables -t filter -A INPUT -p tcp -s $net_cli -d $server0 --dport 80 -j ACCEPT                                
iptables -t filter -A OUTPUT -p tcp -d $net_cli -s $server0 --sport 80 -j ACCEPT


#
iptables -t nat -A POSTROUTING -d 0.0.0.0/0 -j MASQUERADE


#    .     .        3128  .
iptables -t nat -A PREROUTING -i eth1 -p tcp -d ! $server0  --dport 80 -j REDIRECT --to-port 3128
