Firewall-SOSDG/options.default

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# Config file version. Don't change this. Will be used some day to
# figure out if we need to alert the user that they need to redo their
# config file.
CONFIG_VERSION=0.9
# This is for testing purposes.
IPTABLES=/bin/true
IP6TABLES=/bin/true
# Uncomment below to actually activate firewall
#IPTABLES=/sbin/iptables
#IP6TABLES=/sbin/ip6tables
#This is important for loading kernel modules
MODPROBE=/sbin/modprobe
# Don't forget to rename this file to 'options'!
# I'm trying to make this config as simple as possible. Comment out
# options you don't want to use, uncomment them to use them.
# Do we want NAT/Conntrack/Forward features?
#NAT=1
#CONNTRACK=1
#FORWARD=1
# Blocking incoming connections by default?
#BLOCKINCOMING=1
# Clamp MSS, useful on DSL/VPN links
# Space separated list of interfaces to apply this on
#CLAMPMSS="ppp0 eth0"
# Do we run a LAN DHCP server?
#LANDHCPSERVER=1
# Internal Interface
#INTINF=ppp+
# Port forwardings, requires NAT
#PORTFW=$BASEDIR/port-forwards
# TCP/UDP/Protocol to allow
TCPPORTS="20 21 22 53 80 113 123 443"
UDPPORTS="53"
# common protocols to allow include ipsec, gre, and ipv6
ALLOWEDPROTO="41 47 50 51"
# IPs that are allowed to bypass firewall
TRUSTEDIP="127.0.0.1"
# Don't track these IPs, useful in some occasions. Don't
# use otherwise.
DONTTRACK="127.0.0.1"
# IP range(s) to forward
ROUTING=$BASEDIR/ipv4-routing
# Mark ipv4 packets for advanced purposes
IPv4_MARK=$BASEDIR/ipv4-marks
# Hacks to either block specific kinds of attacks or fix problems
#
# NS-IN-DDOS - Block DNS DDoS using NS/IN spoof, see:
# http://www.stupendous.net/archives/2009/01/24/dropping-spurious-nsin-recursive-queries/
#
# MULTI-NIC-ARP-LOCK - By default, in Linux, arp requests may be answered by interfaces that
# do not actually have the IP in question. In some (alot in my case),
# I have things going through specific wires for a reason. This fixes
# that and makes it behave as expected.
#
HACK_IPV4="NS-IN-DDOS"
#==============
# Obsolete - DO NOT USE ANYMORE. Will be removed in 1.0
# IP ranges(s) to NAT using SNAT.
#NATRANGE="192.168.1.0/24"
# External IP and interface for SNAT
#NATEXTIP="172.16.1.1"
#NATEXTIF="eth0"
#==============
# IP NAT Rules
# SNAT:<INT IF>:<INT IP>:<EXT IF>:<EXT IP>
# MASQ:<INT IF>:<INT IP>:<EXT IF>
#NAT_RANGE=
# IP Ranges to block all traffic incoming/outgoing
BLOCKEDIP=$BASEDIR/blocked
# Block outgoing traffic on these TCP/UDP ports
#BLOCKTCPPORTS="6881"
#BLOCKUDPPORTS="6881"
# Strip ECN off of packets - helps with blackholes
# Either individual IPs or 0.0.0.0/0
STRIPECN="0.0.0.0/0"
# IPv6 related features. Commenting out IPV6 variable disables ALL
# IPv6 related items
IPV6=1
# IPv6 Forwarding
#IPV6FORWARD=1
# Default block all incoming ipv6 connections?
IPV6BLOCKINCOMING=1
# Special case for routers that have ipv6 clients behind them.
# Useful if clients do not have proper ipv6 firewalls.
#IPV6ROUTEDCLIENTBLOCK=1
# Clamp MSS, useful on DSL/VPN links
# Space separated list of interfaces to apply this on
# it may be used eventually.
#CLAMPMSSIPV6="he-ipv6"
# Interface IPv6 comes in on (either tunnel or real network interface)
#IPV6INT=he-ipv6
# LAN interface for IPv6
#IPV6LAN=eth1
# Trusted IPv6 ranges
IPV6TRUSTED="::1"
# Allowed incoming IPv6 ports (for now, use $TCPPORTS and $UDPPORTS to
# have same for both ipv4 and ipv6)
IPV6TCP=$TCPPORTS
IPV6UDP=$UDPPORTS
# IPv6 range to forward
#IPV6FORWARDRANGE=""
# Block outgoing IPv6 traffic on these TCP/UDP ports
#BLOCKIPV6TCPPORTS=$BLOCKTCPPORTS
#BLOCKIPV6UDPPORTS=$BLOCKUDPPORTS