10 firewall tools to meet your budget
by Jack Wallen | October 4, 2010 6:54am PDT | Image 1 of 10
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TO TRY IT WILL NOT HARM YOUR COMP OR YOUR PURSE.
THIS DOES WORK WITH AVG ANTI VIRUS PRO,
AD-AWARE ANTI VIRUS PRO,
IMMUNET AND PANDA CLOUD SYSTEMS.ALSO-YES IT DOES WORK ON
64-BIT WINDOWS7 ULTIMATE.
I can't hear you over the fact that you're yelling!
Thanks! However, I am still wondering about any potential conflict with Avast! 5.0.677 and Spybot Search&Destroy 1.6.2.
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
auto eth0
iface eth0 inet dhcp
auto br0
iface br0 inet static
address 192.168.0.1
netmask 255.255.255.0
post-up iptables-restore /etc/iptables.up.rules
bridge_ports eth1 wlan0
iface eth1 inet manual
up ifconfig $IFACE 0.0.0.0 up
up ip link set $IFACE promisc on
down ip link set $IFACE promisc off
down ifconfig $IFACE down
iface wlan0 inet manual
up ifconfig $IFACE 0.0.0.0 up
up ip link set $IFACE promisc on
down ip link set $IFACE promisc off
down ifconfig $IFACE down
Yep! I am using my own iptables script to flush and recreate the rules as soon as my external interface is up!
# Generated by iptables-save v1.4.4 on Thu Oct 7 13:45:47 2010
*mangle
:PREROUTING ACCEPT [3778268:2030589954]
:INPUT ACCEPT [1951542:315871622]
:FORWARD ACCEPT [1828278:1714915334]
:OUTPUT ACCEPT [584837:4837372503]
:POSTROUTING ACCEPT [2415221:6553027657]
:asterisk - [0:0]
:common - [0:0]
-A FORWARD -i br0 -o eth0 -j MARK --set-xmark 0x3/0xffffffff
-A FORWARD -i br0 -o eth0 -j common
-A FORWARD -i br0 -o eth0 -j asterisk
-A FORWARD -i br0 -o eth0 -p icmp -j MARK --set-xmark 0x1/0xffffffff
-A FORWARD -i eth0 -o br0 -j MARK --set-xmark 0x3/0xffffffff
-A FORWARD -i eth0 -o br0 -j common
-A FORWARD -i eth0 -o br0 -j asterisk
-A FORWARD -i eth0 -o br0 -p icmp -j MARK --set-xmark 0x1/0xffffffff
-A asterisk -p udp -m udp --sport 5060 --dport 5060 -j MARK --set-xmark 0x1/0xffffffff
-A asterisk -p udp -m udp --sport 5080 --dport 5080 -j MARK --set-xmark 0x1/0xffffffff
-A asterisk -p tcp -m tcp --sport 5060 --dport 5060 -j MARK --set-xmark 0x1/0xffffffff
-A asterisk -p tcp -m tcp --sport 5080 --dport 5080 -j MARK --set-xmark 0x1/0xffffffff
-A asterisk -p udp -m udp --sport 10000:20000 --dport 10000:20000 -j MARK --set-xmark 0x1/0xffffffff
...
COMMIT
# Completed on Thu Oct 7 13:45:47 2010
# Generated by iptables-save v1.4.4 on Thu Oct 7 13:45:47 2010
*nat
:PREROUTING ACCEPT [48293:6001940]
:POSTROUTING ACCEPT [14341:1088928]
:OUTPUT ACCEPT [36548:2778308]
-A POSTROUTING -o eth0 -j MASQUERADE
COMMIT
# Completed on Thu Oct 7 13:45:47 2010
# Generated by iptables-save v1.4.4 on Thu Oct 7 13:45:47 2010
*filter
:INPUT DROP [14834:4562608]
:FORWARD ACCEPT [1799:264065]
:OUTPUT ACCEPT [584837:4837372503]
:fail2ban-ssh - [0:0]
-A INPUT -p tcp -m multiport --dports 22 -j fail2ban-ssh
-A INPUT -s 211.128.0.0/9 -j DROP
-A INPUT -s 202.96.0.0/9 -j DROP
-A INPUT -s 85.0.0.0/8 -j DROP
-A INPUT -s 81.0.0.0/8 -j DROP
-A INPUT -s 122.0.0.0/8 -j DROP
-A INPUT -s 220.0.0.0/8 -j DROP
-A INPUT -i lo -j ACCEPT
-A INPUT -i br0 -j ACCEPT
-A INPUT -p gre -j ACCEPT
-A INPUT -i eth0 -p icmp -m icmp --icmp-type 8 -m state --state NEW,RELATED,ESTABLISHED -j ACCEPT
...
-A INPUT -i eth0 -m state --state RELATED,ESTABLISHED -j ACCEPT
-A FORWARD -p tcp -m tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
-A FORWARD -i br0 -o eth0 -j ACCEPT
-A FORWARD -i eth0 -o br0 -m state --state RELATED,ESTABLISHED -j ACCEPT
-A OUTPUT -p gre -j ACCEPT
-A fail2ban-ssh -j RETURN
COMMIT
# Completed on Thu Oct 7 13:45:47 2010
And yes, I do have Windows firewall, which is adaquate for my needs. TYVM!
http://www.comodo.com/home/internet-security/free-internet-security.php
Next time check your facts!
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