Linux - SecurityThis forum is for all security related questions.
Questions, tips, system compromises, firewalls, etc. are all included here.
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Introduction to Linux - A Hands on Guide
This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.
Click Here to receive this Complete Guide absolutely free.
After reading allot of threads here.. I have realized that:
Iptables and FIREWALLS are alternatives to each other... am I right?
If yes, then please let me know some basic rules to be set on FireStater, which i have installed recently.. At this moment I have all things enabled.. iptables, which i have never edited any thing.. Fedora default firewall enabled with beginners setup.. and firestater blank..
Now could anyone tell me please please what's the best option for me..
What should I keep on my pc in order to be safe?
Fedora Default firewall?
please give me some suggestion for your choice with the safest conifguration..
I am Connected to LAN SERVER and My Old PC using xp is connected to me and i am sharing my connection through firestater, with two LAN cards on my Linux box.
It would be convenient for me to stay with firestater.. any generous help is always appreciated ..
no, you've misread. ALL "firewalls" are actually configurations of the Linux NetFilter subsystem. *EVERYTHING* comes back to that. iptables is a command line tool to manipulate this subsystem and Firestarter is a tool to simplify and automate the iptables commands that are run. so iptables is 1 level up, firestarter and the fedora firewall tool are 2 levels up.
if you run "iptables -L" you'll see the contents of the netfilter tables. if you are running two systems you'll probably see their own relevant tables in there, happily contradicting each other.
Last edited by acid_kewpie; 12-03-2008 at 01:21 PM.
Linux's packet filtering is done by Netfilter. The command-line tool we use to configure Netfilter is iptables. There are GUI front-ends to iptables, such as Firestarter, Guarddog, etc. EDIT: Sorry, just realized acid_kewpie had already explained it.