Added quote to $IPV6 variables.
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minifirewall
32
minifirewall
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@ -154,10 +154,10 @@ $IPT -N NEEDRESTRICT
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# We allow all on loopback interface
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$IPT -A INPUT -i lo -j ACCEPT
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[ $IPV6 != 'off' ] && $IPT6 -A INPUT -i lo -j ACCEPT
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[ "$IPV6" != "off" ] && $IPT6 -A INPUT -i lo -j ACCEPT
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# if OUTPUTDROP
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$IPT -A OUTPUT -o lo -j ACCEPT
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[ $IPV6 != 'off' ] && $IPT6 -A OUTPUT -o lo -j ACCEPT
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[ "$IPV6" != "off" ] && $IPT6 -A OUTPUT -o lo -j ACCEPT
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# We avoid "martians" packets, typical when W32/Blaster virus
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# attacked windowsupdate.com and DNS was changed to 127.0.0.1
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@ -186,13 +186,13 @@ for x in $SERVICESUDP1p
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for x in $SERVICESTCP1
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do
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$IPT -A INPUT -p tcp --dport $x -j ACCEPT
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[ $IPV6 != 'off' ] && $IPT6 -A INPUT -p tcp --dport $x -j ACCEPT
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[ "$IPV6" != "off" ] && $IPT6 -A INPUT -p tcp --dport $x -j ACCEPT
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done
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for x in $SERVICESUDP1
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do
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$IPT -A INPUT -p udp --dport $x -j ACCEPT
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[ $IPV6 != 'off' ] && $IPT6 -A INPUT -p udp --dport $x -j ACCEPT
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[ "$IPV6" != "off" ] && $IPT6 -A INPUT -p udp --dport $x -j ACCEPT
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done
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# Privilegied services
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@ -281,7 +281,7 @@ for x in $NTPOK
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# Always allow ICMP
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$IPT -A INPUT -p icmp -j ACCEPT
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[ $IPV6 != 'off' ] && $IPT6 -A INPUT -p icmpv6 -j ACCEPT
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[ "$IPV6" != "off" ] && $IPT6 -A INPUT -p icmpv6 -j ACCEPT
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# IPTables policy
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@ -289,7 +289,7 @@ $IPT -A INPUT -p icmp -j ACCEPT
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# by default DROP INPUT packets
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$IPT -P INPUT DROP
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[ $IPV6 != 'off' ] && $IPT6 -P INPUT DROP
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[ "$IPV6" != "off" ] && $IPT6 -P INPUT DROP
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# by default, no FORWARING (deprecated for Virtual Machines)
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#echo 0 > /proc/sys/net/ipv4/ip_forward
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@ -298,13 +298,13 @@ $IPT -P INPUT DROP
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# by default allow OUTPUT packets... but drop UDP packets (see OUTPUTDROP to drop OUTPUT packets)
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$IPT -P OUTPUT ACCEPT
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[ $IPV6 != 'off' ] && $IPT6 -P OUTPUT ACCEPT
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[ "$IPV6" != "off" ] && $IPT6 -P OUTPUT ACCEPT
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$IPT -A OUTPUT -o $INT -p udp --dport 33434:33523 --match state --state NEW -j ACCEPT
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$IPT -A OUTPUT -p udp --match state --state ESTABLISHED,RELATED -j ACCEPT
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$IPT -A OUTPUT -p udp -j DROP
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[ $IPV6 != 'off' ] && $IPT6 -A OUTPUT -o $INT -p udp --dport 33434:33523 --match state --state NEW -j ACCEPT
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[ $IPV6 != 'off' ] && $IPT6 -A OUTPUT -p udp --match state --state ESTABLISHED,RELATED -j ACCEPT
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[ $IPV6 != 'off' ] && $IPT6 -A OUTPUT -p udp -j DROP
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[ "$IPV6" != "off" ] && $IPT6 -A OUTPUT -o $INT -p udp --dport 33434:33523 --match state --state NEW -j ACCEPT
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[ "$IPV6" != "off" ] && $IPT6 -A OUTPUT -p udp --match state --state ESTABLISHED,RELATED -j ACCEPT
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[ "$IPV6" != "off" ] && $IPT6 -A OUTPUT -p udp -j DROP
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trap - INT TERM EXIT
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@ -325,14 +325,14 @@ trap - INT TERM EXIT
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$IPT -F NEEDRESTRICT
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$IPT -t nat -F
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$IPT -t mangle -F
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[ $IPV6 != 'off' ] && $IPT6 -F INPUT
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[ $IPV6 != 'off' ] && $IPT6 -F OUTPUT
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[ "$IPV6" != "off" ] && $IPT6 -F INPUT
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[ "$IPV6" != "off" ] && $IPT6 -F OUTPUT
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# Accept all
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$IPT -P INPUT ACCEPT
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$IPT -P OUTPUT ACCEPT
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[ $IPV6 != 'off' ] && $IPT6 -P INPUT ACCEPT
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[ $IPV6 != 'off' ] && $IPT6 -P OUTPUT ACCEPT
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[ "$IPV6" != "off" ] && $IPT6 -P INPUT ACCEPT
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[ "$IPV6" != "off" ] && $IPT6 -P OUTPUT ACCEPT
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#$IPT -P FORWARD ACCEPT
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#$IPT -t nat -P PREROUTING ACCEPT
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#$IPT -t nat -P POSTROUTING ACCEPT
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@ -363,8 +363,8 @@ trap - INT TERM EXIT
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$IPT -Z
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$IPT -t nat -Z
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$IPT -t mangle -Z
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[ $IPV6 != 'off' ] && $IPT6 -Z
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[ $IPV6 != 'off' ] && $IPT6 -t mangle -Z
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[ "$IPV6" != "off" ] && $IPT6 -Z
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[ "$IPV6" != "off" ] && $IPT6 -t mangle -Z
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echo "...reseting IPTables counters is now finish : OK"
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;;
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