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pxe_boot_alma/work/KickStart/cfg/fwbuilder/probe-4P-tun.fw
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andersenandClaude Fable 5 6d398b826a refactor: move tree under homelab/, add alma10 hardening and kickstart docs 
- restructure boot/kickstarts/scripts/docs into homelab/
- docs: alma9->10 breaking changes, CIS hardening, kickstart changes
- add find_cron_entries.sh helper and codex running memory notes

Co-Authored-By: Claude Fable 5 <[email protected]>
2026-07-06 22:35:07 -04:00

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#!/bin/sh
#
# This is automatically generated file. DO NOT MODIFY !
#
# Firewall Builder fwb_ipt v5.1.0.3599
#
# Generated Tue Mar 26 15:39:31 2019 EDT by wia
#
# files: * probe-4P-tun.fw /etc/probe-4P-tun.fw
#
# Compiled for iptables (any version)
#
FWBDEBUG=""
PATH="/sbin:/usr/sbin:/bin:/usr/bin:${PATH}"
export PATH
LSMOD="/sbin/lsmod"
MODPROBE="/sbin/modprobe"
IPTABLES="/sbin/iptables"
IP6TABLES="/sbin/ip6tables"
IPTABLES_RESTORE="/sbin/iptables-restore"
IP6TABLES_RESTORE="/sbin/ip6tables-restore"
IP="/sbin/ip"
IFCONFIG="/sbin/ifconfig"
VCONFIG="/sbin/vconfig"
BRCTL="/sbin/brctl"
IFENSLAVE="/sbin/ifenslave"
IPSET="/usr/sbin/ipset"
LOGGER="/usr/bin/logger"
log() {
echo "$1"
which "$LOGGER" >/dev/null 2>&1 && $LOGGER -p info "$1"
}
getInterfaceVarName() {
echo $1 | sed 's/\./_/'
}
getaddr_internal() {
dev=$1
name=$2
af=$3
L=$($IP $af addr show dev $dev | sed -n '/inet/{s!.*inet6* !!;s!/.*!!p}' | sed 's/peer.*//')
test -z "$L" && {
eval "$name=''"
return
}
eval "${name}_list=\"$L\""
}
getnet_internal() {
dev=$1
name=$2
af=$3
L=$($IP route list proto kernel | grep $dev | grep -v default | sed 's! .*$!!')
test -z "$L" && {
eval "$name=''"
return
}
eval "${name}_list=\"$L\""
}
getaddr() {
getaddr_internal $1 $2 "-4"
}
getaddr6() {
getaddr_internal $1 $2 "-6"
}
getnet() {
getnet_internal $1 $2 "-4"
}
getnet6() {
getnet_internal $1 $2 "-6"
}
# function getinterfaces is used to process wildcard interfaces
getinterfaces() {
NAME=$1
$IP link show | grep ": $NAME" | while read L; do
OIFS=$IFS
IFS=" :"
set $L
IFS=$OIFS
echo $2
done
}
diff_intf() {
func=$1
list1=$2
list2=$3
cmd=$4
for intf in $list1
do
echo $list2 | grep -q $intf || {
# $vlan is absent in list 2
$func $intf $cmd
}
done
}
find_program() {
PGM=$1
which $PGM >/dev/null 2>&1 || {
echo "\"$PGM\" not found"
exit 1
}
}
check_tools() {
find_program which
find_program $IPTABLES
find_program $MODPROBE
find_program $IP
}
reset_iptables_v4() {
$IPTABLES -P OUTPUT DROP
$IPTABLES -P INPUT DROP
$IPTABLES -P FORWARD DROP
cat /proc/net/ip_tables_names | while read table; do
$IPTABLES -t $table -L -n | while read c chain rest; do
if test "X$c" = "XChain" ; then
$IPTABLES -t $table -F $chain
fi
done
$IPTABLES -t $table -X
done
}
reset_iptables_v6() {
$IP6TABLES -P OUTPUT DROP
$IP6TABLES -P INPUT DROP
$IP6TABLES -P FORWARD DROP
cat /proc/net/ip6_tables_names | while read table; do
$IP6TABLES -t $table -L -n | while read c chain rest; do
if test "X$c" = "XChain" ; then
$IP6TABLES -t $table -F $chain
fi
done
$IP6TABLES -t $table -X
done
}
P2P_INTERFACE_WARNING=""
missing_address() {
address=$1
cmd=$2
oldIFS=$IFS
IFS="@"
set $address
addr=$1
interface=$2
IFS=$oldIFS
$IP addr show dev $interface | grep -q POINTOPOINT && {
test -z "$P2P_INTERFACE_WARNING" && echo "Warning: Can not update address of interface $interface. fwbuilder can not manage addresses of point-to-point interfaces yet"
P2P_INTERFACE_WARNING="yes"
return
}
test "$cmd" = "add" && {
echo "# Adding ip address: $interface $addr"
echo $addr | grep -q ':' && {
$FWBDEBUG $IP addr $cmd $addr dev $interface
} || {
$FWBDEBUG $IP addr $cmd $addr broadcast + dev $interface
}
}
test "$cmd" = "del" && {
echo "# Removing ip address: $interface $addr"
$FWBDEBUG $IP addr $cmd $addr dev $interface || exit 1
}
$FWBDEBUG $IP link set $interface up
}
list_addresses_by_scope() {
interface=$1
scope=$2
ignore_list=$3
$IP addr ls dev $interface | \
awk -v IGNORED="$ignore_list" -v SCOPE="$scope" \
'BEGIN {
split(IGNORED,ignored_arr);
for (a in ignored_arr) {ignored_dict[ignored_arr[a]]=1;}
}
(/inet |inet6 / && $0 ~ SCOPE && !($2 in ignored_dict)) {print $2;}' | \
while read addr; do
echo "${addr}@$interface"
done | sort
}
update_addresses_of_interface() {
ignore_list=$2
set $1
interface=$1
shift
FWB_ADDRS=$(
for addr in $*; do
echo "${addr}@$interface"
done | sort
)
CURRENT_ADDRS_ALL_SCOPES=""
CURRENT_ADDRS_GLOBAL_SCOPE=""
$IP link show dev $interface >/dev/null 2>&1 && {
CURRENT_ADDRS_ALL_SCOPES=$(list_addresses_by_scope $interface 'scope .*' "$ignore_list")
CURRENT_ADDRS_GLOBAL_SCOPE=$(list_addresses_by_scope $interface 'scope global' "$ignore_list")
} || {
echo "# Interface $interface does not exist"
# Stop the script if we are not in test mode
test -z "$FWBDEBUG" && exit 1
}
diff_intf missing_address "$FWB_ADDRS" "$CURRENT_ADDRS_ALL_SCOPES" add
diff_intf missing_address "$CURRENT_ADDRS_GLOBAL_SCOPE" "$FWB_ADDRS" del
}
clear_addresses_except_known_interfaces() {
$IP link show | sed 's/://g' | awk -v IGNORED="$*" \
'BEGIN {
split(IGNORED,ignored_arr);
for (a in ignored_arr) {ignored_dict[ignored_arr[a]]=1;}
}
(/state/ && !($2 in ignored_dict)) {print $2;}' | \
while read intf; do
echo "# Removing addresses not configured in fwbuilder from interface $intf"
$FWBDEBUG $IP addr flush dev $intf scope global
$FWBDEBUG $IP link set $intf down
done
}
check_file() {
test -r "$2" || {
echo "Can not find file $2 referenced by address table object $1"
exit 1
}
}
check_run_time_address_table_files() {
:
}
load_modules() {
:
OPTS=$1
MODULES_DIR="/lib/modules/`uname -r`/kernel/net/"
MODULES=$(find $MODULES_DIR -name '*conntrack*' \! -name '*ipv6*'|sed -e 's/^.*\///' -e 's/\([^\.]\)\..*/\1/')
echo $OPTS | grep -q nat && {
MODULES="$MODULES $(find $MODULES_DIR -name '*nat*'|sed -e 's/^.*\///' -e 's/\([^\.]\)\..*/\1/')"
}
echo $OPTS | grep -q ipv6 && {
MODULES="$MODULES $(find $MODULES_DIR -name nf_conntrack_ipv6|sed -e 's/^.*\///' -e 's/\([^\.]\)\..*/\1/')"
}
for module in $MODULES; do
if $LSMOD | grep ${module} >/dev/null; then continue; fi
$MODPROBE ${module} || exit 1
done
}
verify_interfaces() {
:
echo "Verifying interfaces: eth0 lo eth1 eth2 eth3 tun0"
for i in eth0 lo eth1 eth2 eth3 tun0 ; do
$IP link show "$i" > /dev/null 2>&1 || {
log "Interface $i does not exist"
exit 1
}
done
}
prolog_commands() {
echo "Running prolog script"
}
epilog_commands() {
echo "Running epilog script"
}
run_epilog_and_exit() {
epilog_commands
exit $1
}
configure_interfaces() {
:
# Configure interfaces
getaddr eth0 i_eth0
getaddr6 eth0 i_eth0_v6
getnet eth0 i_eth0_network
getnet6 eth0 i_eth0_v6_network
getaddr eth1 i_eth1
getaddr6 eth1 i_eth1_v6
getnet eth1 i_eth1_network
getnet6 eth1 i_eth1_v6_network
getaddr eth2 i_eth2
getaddr6 eth2 i_eth2_v6
getnet eth2 i_eth2_network
getnet6 eth2 i_eth2_v6_network
getaddr eth3 i_eth3
getaddr6 eth3 i_eth3_v6
getnet eth3 i_eth3_network
getnet6 eth3 i_eth3_v6_network
}
script_body() {
# ================ IPv4
# ================ Table 'filter', automatic rules
# accept established sessions
$IPTABLES -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
$IPTABLES -A OUTPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
$IPTABLES -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT
# ================ Table 'filter', rule set Policy
#
# Rule 0 (lo)
#
echo "Rule 0 (lo)"
#
# Allow anything on loopback
$IPTABLES -A INPUT -i lo -m state --state NEW -j ACCEPT
$IPTABLES -A OUTPUT -o lo -m state --state NEW -j ACCEPT
#
# Rule 1 (global)
#
echo "Rule 1 (global)"
#
# Anti-spoofing rule
$IPTABLES -N In_RULE_1
for i_eth3 in $i_eth3_list
do
test -n "$i_eth3" && $IPTABLES -A INPUT -s $i_eth3 -j In_RULE_1
done
for i_eth2 in $i_eth2_list
do
test -n "$i_eth2" && $IPTABLES -A INPUT -s $i_eth2 -j In_RULE_1
done
for i_eth1 in $i_eth1_list
do
test -n "$i_eth1" && $IPTABLES -A INPUT -s $i_eth1 -j In_RULE_1
done
for i_eth0 in $i_eth0_list
do
test -n "$i_eth0" && $IPTABLES -A INPUT -s $i_eth0 -j In_RULE_1
done
$IPTABLES -A INPUT -s 192.168.184.1 -j In_RULE_1
for i_eth3 in $i_eth3_list
do
test -n "$i_eth3" && $IPTABLES -A FORWARD -i + -s $i_eth3 -j In_RULE_1
done
for i_eth2 in $i_eth2_list
do
test -n "$i_eth2" && $IPTABLES -A FORWARD -i + -s $i_eth2 -j In_RULE_1
done
for i_eth1 in $i_eth1_list
do
test -n "$i_eth1" && $IPTABLES -A FORWARD -i + -s $i_eth1 -j In_RULE_1
done
for i_eth0 in $i_eth0_list
do
test -n "$i_eth0" && $IPTABLES -A FORWARD -i + -s $i_eth0 -j In_RULE_1
done
$IPTABLES -A FORWARD -i + -s 192.168.184.1 -j In_RULE_1
$IPTABLES -A In_RULE_1 -j LOG --log-level warning --log-prefix "FW-RULE 1 -- DENY " --log-tcp-options --log-ip-options
$IPTABLES -A In_RULE_1 -j DROP
#
# Rule 2 (eth0)
#
echo "Rule 2 (eth0)"
#
# Allow services on eth0
$IPTABLES -A INPUT -i eth0 -p tcp -m tcp --dport 8001:8010 -m state --state NEW -j ACCEPT
$IPTABLES -A INPUT -i eth0 -p tcp -m tcp -m multiport --dports 7,5432 -m state --state NEW -j ACCEPT
$IPTABLES -A FORWARD -i eth0 -p tcp -m tcp --dport 8001:8010 -m state --state NEW -j ACCEPT
$IPTABLES -A FORWARD -i eth0 -p tcp -m tcp -m multiport --dports 7,5432 -m state --state NEW -j ACCEPT
$IPTABLES -A OUTPUT -o eth0 -p tcp -m tcp --dport 8001:8010 -m state --state NEW -j ACCEPT
$IPTABLES -A OUTPUT -o eth0 -p tcp -m tcp -m multiport --dports 7,5432 -m state --state NEW -j ACCEPT
$IPTABLES -A FORWARD -o eth0 -p tcp -m tcp --dport 8001:8010 -m state --state NEW -j ACCEPT
$IPTABLES -A FORWARD -o eth0 -p tcp -m tcp -m multiport --dports 7,5432 -m state --state NEW -j ACCEPT
#
# Rule 3 (tun0,eth0)
#
echo "Rule 3 (tun0,eth0)"
#
# Remote probe ssh tunnel
$IPTABLES -N Cid11230X6767.0
$IPTABLES -A INPUT -i eth0 -s 192.168.176.0/24 -m state --state NEW -j Cid11230X6767.0
$IPTABLES -A INPUT -i eth0 -s 192.168.177.0/24 -m state --state NEW -j Cid11230X6767.0
$IPTABLES -A INPUT -i eth0 -s 192.168.184.0/28 -m state --state NEW -j Cid11230X6767.0
$IPTABLES -A INPUT -i eth0 -s 192.168.192.0/19 -m state --state NEW -j Cid11230X6767.0
$IPTABLES -A INPUT -i eth0 -s 192.168.224.0/20 -m state --state NEW -j Cid11230X6767.0
$IPTABLES -A Cid11230X6767.0 -d 192.168.176.0/24 -j ACCEPT
$IPTABLES -A Cid11230X6767.0 -d 192.168.177.0/24 -j ACCEPT
$IPTABLES -A Cid11230X6767.0 -d 192.168.184.0/28 -j ACCEPT
$IPTABLES -A Cid11230X6767.0 -d 192.168.192.0/19 -j ACCEPT
$IPTABLES -A Cid11230X6767.0 -d 192.168.224.0/20 -j ACCEPT
$IPTABLES -N Cid11230X6767.1
$IPTABLES -A INPUT -i tun0 -s 192.168.176.0/24 -m state --state NEW -j Cid11230X6767.1
$IPTABLES -A INPUT -i tun0 -s 192.168.177.0/24 -m state --state NEW -j Cid11230X6767.1
$IPTABLES -A INPUT -i tun0 -s 192.168.184.0/28 -m state --state NEW -j Cid11230X6767.1
$IPTABLES -A INPUT -i tun0 -s 192.168.192.0/19 -m state --state NEW -j Cid11230X6767.1
$IPTABLES -A INPUT -i tun0 -s 192.168.224.0/20 -m state --state NEW -j Cid11230X6767.1
$IPTABLES -A Cid11230X6767.1 -d 192.168.176.0/24 -j ACCEPT
$IPTABLES -A Cid11230X6767.1 -d 192.168.177.0/24 -j ACCEPT
$IPTABLES -A Cid11230X6767.1 -d 192.168.184.0/28 -j ACCEPT
$IPTABLES -A Cid11230X6767.1 -d 192.168.192.0/19 -j ACCEPT
$IPTABLES -A Cid11230X6767.1 -d 192.168.224.0/20 -j ACCEPT
$IPTABLES -N Cid11230X6767.2
$IPTABLES -A FORWARD -i eth0 -s 192.168.176.0/24 -m state --state NEW -j Cid11230X6767.2
$IPTABLES -A FORWARD -i eth0 -s 192.168.177.0/24 -m state --state NEW -j Cid11230X6767.2
$IPTABLES -A FORWARD -i eth0 -s 192.168.184.0/28 -m state --state NEW -j Cid11230X6767.2
$IPTABLES -A FORWARD -i eth0 -s 192.168.192.0/19 -m state --state NEW -j Cid11230X6767.2
$IPTABLES -A FORWARD -i eth0 -s 192.168.224.0/20 -m state --state NEW -j Cid11230X6767.2
$IPTABLES -A Cid11230X6767.2 -d 192.168.176.0/24 -j ACCEPT
$IPTABLES -A Cid11230X6767.2 -d 192.168.177.0/24 -j ACCEPT
$IPTABLES -A Cid11230X6767.2 -d 192.168.184.0/28 -j ACCEPT
$IPTABLES -A Cid11230X6767.2 -d 192.168.192.0/19 -j ACCEPT
$IPTABLES -A Cid11230X6767.2 -d 192.168.224.0/20 -j ACCEPT
$IPTABLES -N Cid11230X6767.3
$IPTABLES -A FORWARD -i tun0 -s 192.168.176.0/24 -m state --state NEW -j Cid11230X6767.3
$IPTABLES -A FORWARD -i tun0 -s 192.168.177.0/24 -m state --state NEW -j Cid11230X6767.3
$IPTABLES -A FORWARD -i tun0 -s 192.168.184.0/28 -m state --state NEW -j Cid11230X6767.3
$IPTABLES -A FORWARD -i tun0 -s 192.168.192.0/19 -m state --state NEW -j Cid11230X6767.3
$IPTABLES -A FORWARD -i tun0 -s 192.168.224.0/20 -m state --state NEW -j Cid11230X6767.3
$IPTABLES -A Cid11230X6767.3 -d 192.168.176.0/24 -j ACCEPT
$IPTABLES -A Cid11230X6767.3 -d 192.168.177.0/24 -j ACCEPT
$IPTABLES -A Cid11230X6767.3 -d 192.168.184.0/28 -j ACCEPT
$IPTABLES -A Cid11230X6767.3 -d 192.168.192.0/19 -j ACCEPT
$IPTABLES -A Cid11230X6767.3 -d 192.168.224.0/20 -j ACCEPT
$IPTABLES -N Cid11230X6767.4
$IPTABLES -A OUTPUT -o eth0 -s 192.168.176.0/24 -m state --state NEW -j Cid11230X6767.4
$IPTABLES -A OUTPUT -o eth0 -s 192.168.177.0/24 -m state --state NEW -j Cid11230X6767.4
$IPTABLES -A OUTPUT -o eth0 -s 192.168.184.0/28 -m state --state NEW -j Cid11230X6767.4
$IPTABLES -A OUTPUT -o eth0 -s 192.168.192.0/19 -m state --state NEW -j Cid11230X6767.4
$IPTABLES -A OUTPUT -o eth0 -s 192.168.224.0/20 -m state --state NEW -j Cid11230X6767.4
$IPTABLES -A Cid11230X6767.4 -d 192.168.176.0/24 -j ACCEPT
$IPTABLES -A Cid11230X6767.4 -d 192.168.177.0/24 -j ACCEPT
$IPTABLES -A Cid11230X6767.4 -d 192.168.184.0/28 -j ACCEPT
$IPTABLES -A Cid11230X6767.4 -d 192.168.192.0/19 -j ACCEPT
$IPTABLES -A Cid11230X6767.4 -d 192.168.224.0/20 -j ACCEPT
$IPTABLES -N Cid11230X6767.5
$IPTABLES -A OUTPUT -o tun0 -s 192.168.176.0/24 -m state --state NEW -j Cid11230X6767.5
$IPTABLES -A OUTPUT -o tun0 -s 192.168.177.0/24 -m state --state NEW -j Cid11230X6767.5
$IPTABLES -A OUTPUT -o tun0 -s 192.168.184.0/28 -m state --state NEW -j Cid11230X6767.5
$IPTABLES -A OUTPUT -o tun0 -s 192.168.192.0/19 -m state --state NEW -j Cid11230X6767.5
$IPTABLES -A OUTPUT -o tun0 -s 192.168.224.0/20 -m state --state NEW -j Cid11230X6767.5
$IPTABLES -A Cid11230X6767.5 -d 192.168.176.0/24 -j ACCEPT
$IPTABLES -A Cid11230X6767.5 -d 192.168.177.0/24 -j ACCEPT
$IPTABLES -A Cid11230X6767.5 -d 192.168.184.0/28 -j ACCEPT
$IPTABLES -A Cid11230X6767.5 -d 192.168.192.0/19 -j ACCEPT
$IPTABLES -A Cid11230X6767.5 -d 192.168.224.0/20 -j ACCEPT
$IPTABLES -N Cid11230X6767.6
$IPTABLES -A FORWARD -o eth0 -s 192.168.176.0/24 -m state --state NEW -j Cid11230X6767.6
$IPTABLES -A FORWARD -o eth0 -s 192.168.177.0/24 -m state --state NEW -j Cid11230X6767.6
$IPTABLES -A FORWARD -o eth0 -s 192.168.184.0/28 -m state --state NEW -j Cid11230X6767.6
$IPTABLES -A FORWARD -o eth0 -s 192.168.192.0/19 -m state --state NEW -j Cid11230X6767.6
$IPTABLES -A FORWARD -o eth0 -s 192.168.224.0/20 -m state --state NEW -j Cid11230X6767.6
$IPTABLES -A Cid11230X6767.6 -d 192.168.176.0/24 -j ACCEPT
$IPTABLES -A Cid11230X6767.6 -d 192.168.177.0/24 -j ACCEPT
$IPTABLES -A Cid11230X6767.6 -d 192.168.184.0/28 -j ACCEPT
$IPTABLES -A Cid11230X6767.6 -d 192.168.192.0/19 -j ACCEPT
$IPTABLES -A Cid11230X6767.6 -d 192.168.224.0/20 -j ACCEPT
$IPTABLES -N Cid11230X6767.7
$IPTABLES -A FORWARD -o tun0 -s 192.168.176.0/24 -m state --state NEW -j Cid11230X6767.7
$IPTABLES -A FORWARD -o tun0 -s 192.168.177.0/24 -m state --state NEW -j Cid11230X6767.7
$IPTABLES -A FORWARD -o tun0 -s 192.168.184.0/28 -m state --state NEW -j Cid11230X6767.7
$IPTABLES -A FORWARD -o tun0 -s 192.168.192.0/19 -m state --state NEW -j Cid11230X6767.7
$IPTABLES -A FORWARD -o tun0 -s 192.168.224.0/20 -m state --state NEW -j Cid11230X6767.7
$IPTABLES -A Cid11230X6767.7 -d 192.168.176.0/24 -j ACCEPT
$IPTABLES -A Cid11230X6767.7 -d 192.168.177.0/24 -j ACCEPT
$IPTABLES -A Cid11230X6767.7 -d 192.168.184.0/28 -j ACCEPT
$IPTABLES -A Cid11230X6767.7 -d 192.168.192.0/19 -j ACCEPT
$IPTABLES -A Cid11230X6767.7 -d 192.168.224.0/20 -j ACCEPT
#
# Rule 4 (global)
#
echo "Rule 4 (global)"
#
# Allow services in
$IPTABLES -A INPUT -p icmp -m icmp --icmp-type 3 -m state --state NEW -j ACCEPT
$IPTABLES -A INPUT -p icmp -m icmp --icmp-type 0/0 -m state --state NEW -j ACCEPT
$IPTABLES -A INPUT -p icmp -m icmp --icmp-type 8/0 -m state --state NEW -j ACCEPT
$IPTABLES -A INPUT -p icmp -m icmp --icmp-type 11/0 -m state --state NEW -j ACCEPT
$IPTABLES -A INPUT -p icmp -m icmp --icmp-type 11/1 -m state --state NEW -j ACCEPT
$IPTABLES -A INPUT -p tcp -m tcp -m multiport --dports 1306,22 -m state --state NEW -j ACCEPT
$IPTABLES -A INPUT -p udp -m udp -m multiport --dports 9991,161,162,514 -m state --state NEW -j ACCEPT
#
# Rule 7 (global)
#
echo "Rule 7 (global)"
#
# Allow services out
$IPTABLES -A OUTPUT -p icmp -m icmp --icmp-type 3 -m state --state NEW -j ACCEPT
$IPTABLES -A OUTPUT -p icmp -m icmp --icmp-type 0/0 -m state --state NEW -j ACCEPT
$IPTABLES -A OUTPUT -p icmp -m icmp --icmp-type 8/0 -m state --state NEW -j ACCEPT
$IPTABLES -A OUTPUT -p icmp -m icmp --icmp-type 11/0 -m state --state NEW -j ACCEPT
$IPTABLES -A OUTPUT -p icmp -m icmp --icmp-type 11/1 -m state --state NEW -j ACCEPT
$IPTABLES -A OUTPUT -p tcp -m tcp --dport 1:9999 -m state --state NEW -j ACCEPT
$IPTABLES -A OUTPUT -p udp -m udp --dport 1:9999 -m state --state NEW -j ACCEPT
$IPTABLES -A OUTPUT -p udp -m udp --dport 33434:33524 -m state --state NEW -j ACCEPT
#
# Rule 8 (global)
#
echo "Rule 8 (global)"
#
# Let the DNCS talk
$IPTABLES -A INPUT -s 10.253.0.1 -m state --state NEW -j ACCEPT
$IPTABLES -A INPUT -s 192.168.2.1 -m state --state NEW -j ACCEPT
#
# Rule 9 (global)
#
echo "Rule 9 (global)"
#
# Ignore customer incoming broadcasts
$IPTABLES -A INPUT -d 255.255.255.255 -j DROP
#
# Rule 10 (global)
#
echo "Rule 10 (global)"
#
# Ignore chatty stuff
$IPTABLES -A INPUT -p tcp -m tcp --dport 139 -j DROP
$IPTABLES -A INPUT -p udp -m udp -m multiport --dports 68,67,138,137,6157,5757 -j DROP
#
# Rule 11 (global)
#
echo "Rule 11 (global)"
#
# Ignore multicast
$IPTABLES -A INPUT -d 224.0.0.0/4 -j DROP
#
# Rule 12 (global)
#
echo "Rule 12 (global)"
#
# Deny and log catch all
$IPTABLES -N RULE_12
$IPTABLES -A OUTPUT -j RULE_12
$IPTABLES -A INPUT -j RULE_12
$IPTABLES -A FORWARD -j RULE_12
$IPTABLES -A RULE_12 -j LOG --log-level info --log-prefix "FW-RULE 12 -- DENY " --log-tcp-options --log-ip-options
$IPTABLES -A RULE_12 -j DROP
}
ip_forward() {
:
}
reset_all() {
:
reset_iptables_v4
}
block_action() {
reset_all
}
stop_action() {
reset_all
$IPTABLES -P OUTPUT ACCEPT
$IPTABLES -P INPUT ACCEPT
$IPTABLES -P FORWARD ACCEPT
}
check_iptables() {
IP_TABLES="$1"
[ ! -e $IP_TABLES ] && return 151
NF_TABLES=$(cat $IP_TABLES 2>/dev/null)
[ -z "$NF_TABLES" ] && return 152
return 0
}
status_action() {
check_iptables "/proc/net/ip_tables_names"
ret_ipv4=$?
check_iptables "/proc/net/ip6_tables_names"
ret_ipv6=$?
[ $ret_ipv4 -eq 0 -o $ret_ipv6 -eq 0 ] && return 0
[ $ret_ipv4 -eq 151 -o $ret_ipv6 -eq 151 ] && {
echo "iptables modules are not loaded"
}
[ $ret_ipv4 -eq 152 -o $ret_ipv6 -eq 152 ] && {
echo "Firewall is not configured"
}
exit 3
}
# See how we were called.
# For backwards compatibility missing argument is equivalent to 'start'
cmd=$1
test -z "$cmd" && {
cmd="start"
}
case "$cmd" in
start)
log "Activating firewall script generated Tue Mar 26 15:39:31 2019 by wia"
check_tools
prolog_commands
check_run_time_address_table_files
load_modules " "
configure_interfaces
verify_interfaces
reset_all
script_body
ip_forward
epilog_commands
RETVAL=$?
;;
stop)
stop_action
RETVAL=$?
;;
status)
status_action
RETVAL=$?
;;
block)
block_action
RETVAL=$?
;;
reload)
$0 stop
$0 start
RETVAL=$?
;;
interfaces)
configure_interfaces
RETVAL=$?
;;
test_interfaces)
FWBDEBUG="echo"
configure_interfaces
RETVAL=$?
;;
*)
echo "Usage $0 [start|stop|status|block|reload|interfaces|test_interfaces]"
;;
esac
exit $RETVAL
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