brielle
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Firewall-SOSDG
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bruns@2mbit.com 2009-08-25 03:51:41 +00:00
parent 811f2b2d9e
commit 2bb4c6abfc
1 changed files with 10 additions and 9 deletions
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19
rc.firewall
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@ -1,5 +1,5 @@
#/bin/bash #/bin/bash
# v0.5 # v0.6
# By Brielle Bruns <bruns@2mbit.com> # By Brielle Bruns <bruns@2mbit.com>
# URL: http://www.sosdg.org/freestuff/firewall # URL: http://www.sosdg.org/freestuff/firewall
# License: GPLv3 # License: GPLv3
@ -53,6 +53,15 @@ echo -en "\n"
$IPTABLES -A INPUT -j DROP -p udp --dport domain -m u32 --u32 \ $IPTABLES -A INPUT -j DROP -p udp --dport domain -m u32 --u32 \
"0>>22&0x3C@12>>16=1&&0>>22&0x3C@20>>24=0&&0>>22&0x3C@21=0x00020001" "0>>22&0x3C@12>>16=1&&0>>22&0x3C@20>>24=0&&0>>22&0x3C@21=0x00020001"
if [ $CONNTRACK ]; then
$IPTABLES -A INPUT -i lo -m state --state NEW -j ACCEPT
$IPTABLES -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
$IPTABLES -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
$IPTABLES -A INPUT -m state --state INVALID -j DROP
$IPTABLES -A OUTPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
$IPTABLES -A OUTPUT -m state --state NEW -j ACCEPT
fi
echo -n "Adding allowed port: " echo -n "Adding allowed port: "
for i in $TCPPORTS; do for i in $TCPPORTS; do
@ -131,14 +140,6 @@ if [ $LANDHCPSERVER ]; then
fi fi
if [ $CONNTRACK ]; then
$IPTABLES -A INPUT -i lo -m state --state NEW -j ACCEPT
$IPTABLES -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
$IPTABLES -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
$IPTABLES -A INPUT -m state --state INVALID -j DROP
$IPTABLES -A OUTPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
$IPTABLES -A OUTPUT -m state --state NEW -j ACCEPT
fi
if [ $NAT ]; then if [ $NAT ]; then
for i in $NATRANGE; do for i in $NATRANGE; do