Disse ressourcer giver yderligere oplysninger om iptables / netfiter eller anden måde er en ressource til brug under administration af en firewall (alle links åbne i et nyt faneblad).
Netfilter / IPTables Hjem
http://www.netfilter.org/
RFC 1918 - Adresse Allocation for Private Internets
http://www.faqs.org/rfcs/rfc1918.html
IANA portnumre
http://www.iana.org/assignments/port-numbers
Porte til Internet Services - en anden port list
http://www.chebucto.ns.ca/~rakerman/port-table.html
Næsten Networked særlige havn List - nyttige for port forwarding
http://www.practicallynetworked.com/sharing/app_port_list.htm
Oskar Andreasson's IP-Tables Tutorial
https://www.frozentux.net/iptables-tutorial/iptables-tutorial.html
Linux IP Masquerade HOWTO
http://www.tldp.org/HOWTO/IP-Masquerade-HOWTO/index.html
Brandmure med netfilter / iptables
http://www.knowplace.org/netfilter/
Fireparse - Firewall log parser
http://aaron.marasco.com/linux.html
http://freshmeat.net/releases/47719/
IPTables Firewall Scripts og konfigurationsfiler
http://www.malibyte.net/iptables/scripts/fwscripts.html
IPTables Connection Tracking
http://www.cs.princeton.edu/~jns/security/iptables/iptables_conntrack.html
Konfiguration af NFS under Linux for Firewall kontrol
http://www.lowth.com/LinWiz/nfs_help.html