Try this site. It has got some good examples. http://www.linuxguruz.org/iptables/
Craig -----Original Message----- From: Ray Olszewski [mailto:[EMAIL PROTECTED]] Sent: 21 September 2002 03:07 To: Le, Paul [Contractor]; [EMAIL PROTECTED] Subject: RE: Proxy At 08:38 PM 9/20/02 -0500, Le, Paul [Contractor] wrote: >May I ask what is iptables, and where can I get a how to for it. [old stuff deleted] Oopf! A trickier question than it looks like, I'm sad to say. iptables is the application used to configure some of the advanced routing functions (including firewalling, NAT, and port forwarding) in Linux 2.4.x kernels. If you have the application installed, "man iptables" will tell you the basic commands. But this listing is pretty barebones ... useful if you need to check a detail in your iptables ruleset, but not much help getting started. To my surprise, there does not seem to be an "official" Ipchains HowTo at linuxdoc, but several routing HowTos have been updated recently enough to give at least a bit of an introduction. Find them via this URL http://www.tldp.org/HOWTO/HOWTO-INDEX/networking.html#NETROUTING (www.tldp.org is the site formerly called linuxdoc, and it should always be the first place to check for HowTos or other Linux documentation). There is an actual Iptables HowTo, which you can find many links for by searching on "linux iptables" at Google (the second place to check for HowTos and other Linux documentation). I don't know why it is not on the list at tldp (maybe times have changed and my "first" and "second" ratings need to be reversed?). Another way to get a handle on Ipfilters is to look at an application that uses it. One example is Shorewall, a drop-in firewalling package. Find it the usual ways (some distros include it in their package-management systems). Finally, I came across this link: http://www.linuxnewbie.org/nhf/Security/IPtables_Basics.html Personally, I didn't find the content all that helpful, but with so little for the beginner to choose from on this fundamentally difficult topice, I thought it worth mentioning anyway. -- -------------------------------------------"Never tell me the odds!"-------- Ray Olszewski -- Han Solo Palo Alto, California, USA [EMAIL PROTECTED] ---------------------------------------------------------------------------- --- - To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs - To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs
