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LinuxGuruz Netfilter IPTABLES Firewall Page

The Netfilter Project Homepage http://www.netfilter.org

Source Code
Userspace code (tar.bz2) http://www.netfilter.org/files/iptables-1.3.0.tar.bz2

FAQ
Netfilter/Iptables FAQ http://netfilter.samba.org/documentation/FAQ/netfilter-faq.html
Firewall Forensics (What am I seeing?) FAQ http://www.robertgraham.com/pubs/firewall-seen.html
Network Intrusion Detection Systems - IDS http://www.robertgraham.com/pubs/network-intrusion-detection.html
Sniffing (network wiretap, sniffer) FAQ http://www.robertgraham.com/pubs/sniffing-faq.html
Linux IP Masquerade FAQ http://en.tldp.org/HOWTO/IP-Masquerade-HOWTO/
Firewall Admins Guide to Porn FAQ http://www.robertgraham.com/pubs/firewall-pr0n.html
Hacking Lexicon - hacking dictionary http://www.robertgraham.com/pubs/hacking-dict.html
Submit a FAQ Link or URL http://www.linuxguruz.com/iptables/#links

Scripts
Home LAN masquerading http://the-devil.dnsalias.net/home/extremist_MASQ
Home LAN ip6tables http://the-devil.dnsalias.net/home/extremist6
Basic IPv6 FireWall script http://ipv6.klingon.nl/ipv6firewall/
HomeLAN Security v.1.3.1 http://www.unixpages.com/downloads/HomeLANSecurity-1_3_1.txt
Resets iptables to default values http://www.linuxguruz.com/iptables/scripts/rc.flush-iptables.txt
MonMotha's Firewall 2.3.8-pre7 http://monmotha.mplug.org/firewall/firewall/2.3/rc.firewall-2.3.8-pre9
Firewall BASH Script - by Netcat http://the-devil.dnsalias.net/home/extremist
Arno's IPTABLES Firewall Script http://freshmeat.net/projects/iptables-firewall/?topic_id=151
The Wonder Shaper http://lartc.org/wondershaper/
Projectfiles.com Linux Firewall http://projectfiles.com/firewall/
Technion's IPTables Script http://orbital.wiretapped.net/~technion/iptables
Initial SIMPLE IP Firewall http://www.linuxguruz.com/iptables/scripts/rc.firewall.txt
DMZ IP Firewall script http://www.linuxguruz.com/iptables/scripts/rc.DMZ.firewall.txt
DHCP IP Firewall script http://www.linuxguruz.com/iptables/scripts/rc.DHCP.firewall.txt
UTIN Firewall script http://www.linuxguruz.com/iptables/scripts/rc.UTIN.firewall.txt
Linux Firewall and NAT for DSL http://www.ccl.net/cca/software/UNIX/netfilter/
NATting SOHO firewall http://www.linuxguruz.com/iptables/scripts/rc.firewall_002.txt
Simple IPTABLES firewall http://linux.ardynet.com/ipmasq/ipmasq.php3#iptables
IPTABLES masquerading firewall http://www.linuxguruz.com/iptables/scripts/rc.firewall_023.txt
Script for a dual-homed firewall http://www.linuxguruz.com/iptables/scripts/rc.firewall_004.txt
Script for a multi-homed firewall http://www.linuxguruz.com/iptables/scripts/rc.firewall_005.txt
Set up iptables NAT rules http://www.linuxguruz.com/iptables/scripts/rc.firewall_006.txt
Example netfilter setup http://www.linuxguruz.com/iptables/scripts/rc.firewall_007.txt
Packet filtering setup script http://www.linuxguruz.com/iptables/scripts/rc.firewall_008.txt
Very restrictive set of firewall rules http://www.linuxguruz.com/iptables/scripts/rc.firewall_012.txt
Tightly secured firewall for general use http://www.linuxguruz.com/iptables/scripts/rc.firewall_013.txt
Example NAT usage http://www.linuxguruz.com/iptables/scripts/rc.firewall_014.txt
Run a web server inside LAN http://www.linuxguruz.com/iptables/scripts/rc.firewall_016.txt
Configuration with no services supported http://www.linuxguruz.com/iptables/scripts/rc.firewall_017.txt
Script for NAT and more http://www.linuxguruz.com/iptables/scripts/rc.firewall_018.txt
NAT iptables firewall script http://www.sjdjweis.com/linux/proxyarp/rc.firewall.txt
Routing incoming ppp0 http://www.linuxguruz.com/iptables/scripts/rc.firewall_020.txt
Basic Ipchains Firewall Rule Script http://www.linuxguruz.com/iptables/scripts/rc.firewall_021.txt
Common firewall functions http://www.bagley.org/~doug/firewall/firewall.functions.iptables
Script written by Rick Dicaire http://www.linuxguruz.com/iptables/scripts/rc.firewall_022.txt
NAT and blocking all but Port 22 http://www.linuxguruz.com/iptables/scripts/rc.firewall_024.txt
Firebred iptables Script http://void.printf.net/~bredroll/firewall.html
Email us your rc.firewall script or URL iptables@linuxguruz.com

IRC
EfNet IPTABLES IRC Channel JPilot Java IRC Applet - #IPTABLES

Howto
Linux Stateful Firewall & IP Masquerading http://www.puschitz.com/FirewallAndRouters.shtml
Linux IP Masquerade HOWTO http://www.tldp.org/HOWTO/IP-Masquerade-HOWTO/index.html
Linux iptables HOWTO http://www.linuxguruz.com/iptables/howto/iptables-HOWTO.html
Netfilter Extensions HOWTO - Patch-O-Matic http://www.linuxguruz.com/iptables/howto/netfilter-extensions-HOWTO.html
Linux netfilter Hacking HOWTO http://www.linuxguruz.com/iptables/howto/netfilter-hacking-HOWTO.html
Linux ipnatctl HOWTO http://www.linuxguruz.com/iptables/howto/ipnatctl-HOWTO.html
Linux 2.4 NAT HOWTO http://www.netfilter.org/documentation/HOWTO/NAT-HOWTO.html
Linux 2.4 Packet Filtering HOWTO http://www.linuxguruz.com/iptables/howto/packet-filtering-HOWTO.html
Linux Administrator's Security Guide http://www.seifried.org/lasg/
Networking Concepts HOWTO http://www.linuxguruz.com/iptables/howto/networking-concepts-HOWTO.html
Transparent Proxy mini-HOWTO http://en.tldp.org/HOWTO/TransparentProxy.html
Linux 2.4 Advanced Routing HOWTO http://www.linuxguruz.com/iptables/howto/2.4routing.html
Manpage of IPTABLES http://www.linuxguruz.com/iptables/howto/maniptables.html
tinc from behind a masquerading firewall http://tinc.nl.linux.org/examples/masquerading-firewall.html
Linux Performance, Security, and Managability http://www.linuxguruz.com/iptables/howto/TrinityOS/
Stopping Filesharing http://www.oofle.com/filesharing.php
Submit a Howto Link or URL http://www.linuxguruz.com/iptables/#links

Tutorial
Traffic Shaping with Linux http://www.knowplace.org/shaper/
Firewalling with Netfilter/Iptables http://www.knowplace.org/netfilter/index.html
What is the difference between REJECT and DENY? http://logi.cc/linux/reject_or_deny.html
Linux Advanced Routing & Traffic Control http://www.lartc.org
Iptables Tutorial http://iptables-tutorial.frozentux.net/iptables-tutorial.html
Traffic Shaping (QOS and TOS) http://www.docum.org/docum.org/
Filter The Web With squidGuard http://networking.earthweb.com/netos/article/0,,12083_1371241,00.html
Comparison of iptables Automation Tools http://online.securityfocus.com/infocus/1410
LinuxWorld: San Jose August 2000 http://www.linuxguruz.com/iptables/tutorial/tut1/
Set up an gateway for home or office http://www.yolinux.com/TUTORIALS/LinuxTutorialIptablesNetworkGateway.html
Filtering Packets with iptables http://www.unixreview.com/documents/s=1237/urm0103c/0103c.htm
Using iptables http://www.unixreview.com/documents/s=1236/urm0104l/0104l.htm
Netfilter framework in Linux 2.4 http://www.gnumonks.org/papers/netfilter-lk2000/presentation.html
IPtables Connection tracking http://www.sns.ias.edu/~jns/security/iptables/iptables_conntrack.html
Iptables - What is it http://www.sns.ias.edu/~jns/security/iptables/index.html
Linux Kernel 2.4 Firewalling Matures http://www.linuxsecurity.com/feature_stories/kernel-netfilter.html
Network Security With Linux 2.4 http://www.linux-mag.com/2000-01/bestdefense_01.html
Netfilter Log Format http://logi.cc/linux/netfilter-log-format.php3
Netfilter Log Analyzer http://logi.cc/linux/NetfilterLogAnalyzer.php3
Submit a Tutorial or URL http://www.linuxguruz.com/iptables/#links

Tools
Firewall Builder - Multi-platform configuration and management http://www.fwbuilder.org/
NuFW - Authentication of every connection passing IP filter http://www.nufw.org/
fabfw - Firewall-Script built on iptables http://www.realdealz.ch/fabfw_en.php
Ftwall - Block network traffic from P2P client applications http://www.lowth.com/p2pwall/
Bifrost - GUI firewall management interface to iptables http://bifrost.heimdalls.com/
LinWiz - Linux configuration file and scripting Wizards http://www.lowth.com/LinWiz/
Dnsmasq - caching DNS forwarder http://thekelleys.org.uk/dnsmasq/doc.html
FireHOL, the iptables stateful packet filtering firewall builder http://firehol.sourceforge.net/
adcfw-log - firewall logs analyzer/summarizer http://adcfw-log.sourceforge.net/
BullDog - A comprehensive and progressive firewall http://tanaya.net/BullDog/
WallFire: wflogs - firewall log analysis tool http://www.wallfire.org/wflogs/
Ulog-php - a php analyser for netfilter U-log http://www.inl.fr/article.php3?id_article=7
Firewall Tester http://ftester.sourceforge.net
Easy Firewall Generator for IPTables http://easyfwgen.morizot.net/gen/
YAFT's Another Firewall Tool http://sourceforge.net/projects/yaft
PFG for IPTables http://www.thegate.nu/pfg/
IPTables log analyzer http://www.gege.org/iptables/
Turtle Firewall Project http://turtlefirewall.sourceforge.net
TuxFrw - Firewall Automation Tool http://tuxfrw.sourceforge.net/index.html
Shoreline Firewall http://www.shorewall.net/
levy - Perl Firewall Generater http://muse.linuxmafia.org/levy/
gSshield - BASH Shell Script Configurator http://muse.linuxmafia.org/gshield/
Mason - Builds from system traffic http://www.stearns.org/mason/
GIPTables Firewall - IPTABLES Rules Generator http://www.giptables.org
Firewall Builder - GUI Firewall Frontend http://www.fwbuilder.org/index.html
IPMENU - Curses Firewall Frontend http://users.pandora.be/stes/ipmenu.html
Fireparse - Firewall Log Parser http://aaron.marasco.com/linux.html
SATAN - Port Scanner with a Web Interface http://www.ibiblio.org/pub/packages/security/Satan-for-Linux/
Submit a Tools Link or URL http://www.linuxguruz.com/iptables/#links

Network Security Sites
PenguinSecurity http://www.penguinsecurity.net/
Security Wizards http://www.secwiz.com/
WebHostingTalk Technical & Security Issues Page http://www.webhostingtalk.com/forumdisplay.php?forumid=5
Submit a Network Security Site Link or URL http://www.linuxguruz.com/iptables/#links

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