Zdraveite
Imam malka mrezha svurzana s survurche pod slak 11.0
eth0-Mi e vutreshnata mrezha
eth1-Mi e BTK-ADSL-a
ta interesuva me ima li niakakav skript da spira neta na
dadeno ip
primerno na 192.168.1.20 da niama net a da ima dostup samo do
vutreshnata mrezha a 192.168.1.21 da si ima net i dostup do
vutreshnata mrezha
imam sledniia rc.firewall skript deto mi go prati edin
priiatel ne razbiram ot skriptove ta dali mizhe v tozi skript
da se dobavi niakoi red ta da spira neta na tova ip deto az
iskam
FWVER=0.63
echo -e "\n\nLoading simple rc.firewall version $FWVER..\n"
IPTABLES=/usr/sbin/iptables
EXTIF="eth0"
INTIF="eth1"
echo " External Interface: $EXTIF"
echo " Internal Interface: $INTIF"
echo -en " loading modules: "
echo " - Verifying that all kernel modules are ok"
/sbin/depmod -a
echo -en "ip_tables, "
/sbin/insmod ip_tables
echo -en "ip_conntrack, "
/sbin/insmod ip_conntrack
echo -en "ip_conntrack_ftp, "
/sbin/insmod ip_conntrack_ftp
echo -en "ip_conntrack_irc, "
/sbin/insmod ip_conntrack_irc
echo -en "iptable_nat, "
/sbin/insmod iptable_nat
echo -en "ip_nat_ftp, "
/sbin/insmod ip_nat_ftp
echo ". Done loading modules."
echo " enabling forwarding.."
echo "1" > /proc/sys/net/ipv4/ip_forward
echo "64000" > /proc/sys/net/ipv4/ip_conntrack_max
echo " clearing any existing rules and setting default
policy.."
$IPTABLES -F
$IPTABLES -P INPUT ACCEPT
$IPTABLES -F INPUT
$IPTABLES -P OUTPUT ACCEPT
$IPTABLES -F OUTPUT
$IPTABLES -P FORWARD DROP
$IPTABLES -F FORWARD
$IPTABLES -t nat -F
echo " FWD: Allow all connections OUT and only existing
and related ones IN"
#w32blaster stop
#$IPTABLES -A INPUT -p tcp --destination-port 135 -j
DROP
#$IPTABLES -A INPUT -p tcp --destination-port 139 -j
DROP
#$IPTABLES -A INPUT -p tcp --destination-port 445 -j
DROP
#$IPTABLES -A INPUT -p tcp --destination-port 593 -j
DROP
#$IPTABLES -A INPUT -p tcp --destination-port 4444 -j
DROP
#$IPTABLES -A INPUT -p udp --destination-port 69 -j DROP
#$IPTABLES -A INPUT -p udp --destination-port 135 -j
DROP
#$IPTABLES -A INPUT -p udp --destination-port 137 -j
DROP
#$IPTABLES -A INPUT -p udp --destination-port 138 -j
DROP
$IPTABLES -A FORWARD -p tcp --destination-port 135 -j
DROP
$IPTABLES -A FORWARD -p tcp --destination-port 139 -j
DROP
$IPTABLES -A FORWARD -p tcp --destination-port 445 -j
DROP
$IPTABLES -A FORWARD -p tcp --destination-port 593 -j
DROP
#$IPTABLES -A FORWARD -p tcp --destination-port 4444 -j
DROP
$IPTABLES -A FORWARD -p tcp --destination-port 1433 -j
DROP
#$IPTABLES -A FORWARD -p icmp -s 85.239.145.52 -j DROP
$IPTABLES -A FORWARD -p udp --destination-port 69 -j
DROP
$IPTABLES -A FORWARD -p udp --destination-port 135 -j
DROP
$IPTABLES -A FORWARD -p udp --destination-port 137 -j
DROP
$IPTABLES -A FORWARD -p udp --destination-port 138 -j
DROP
$IPTABLES -A FORWARD -j ACCEPT
$IPTABLES -A FORWARD -j LOG
echo " Enabling SNAT (MASQUERADE) functionality on
$EXTIF"
$IPTABLES -t nat -A POSTROUTING -s 192.168.20.0/24 -j
MASQUERADE
echo -e "\nrc.firewall-2.4 v$FWVER done.\n"
#/etc/rc.d/sasacct-iptables.sh
-----------------------------------------
taka kato gledam poslednite redove primerno tozi red
#$IPTABLES -A FORWARD -p icmp -s 85.239.145.52 -j DROP
Ako primerno tova ip deto e 85.239.145.52 ako go naprava da
e 192.168.1.20
i mu mahna #-scheto shte spre li neta na tova ip ?
Ako ne e tova reshenieto kazhete niakukvo reshenie
Blagodaria za odelenoto vreme :)
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