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.
Could someone give me the correct verbage for allowing a range of ports (on UDP and TCP) through the firewall on Fedora 2? I need to let 27000 - 27040 through and I am having a hard time understanding what I need to type in.
With the -I (Insert) option, the rules are automatically placed first in the ruleset. With -A (Append), they're added last and you can indeed have order number problems. However, using -I gets around that without getting overly complex.
So I restarted my box and started freaking because I couldnt get to it over the ports. Obviously, after thinking, I realized I probably never saved the configuration... whats the command to save the settings? I dont see anything in --help for iptables.