NetworkNewz (Enable images to fully enjoy) NetworkNewz (Enable images to fully enjoy) About Us iEntry
September26, 2011
An Iptables Eulogy, Part 1: Introduction
By Joe Purcell
If Scapy is the most powerful tool for network admins, iptables is the most handy. This tutorial, or eulogy rather, serves to help the reader transcend the disturbing complexity of such a simple idea: routing IP traffic.

A reader advanced in iptables would perhaps be better served reading Oskar Andreasson's Iptables Tutorial (other formats). Oskar has been involved in writing the tutorial for many years. Though the last revision was in late 2006, iptables has not changed enough to hinder the concepts and procedures he explains. Even so, this eulogy should at the very least be worth the entertainment.

For those unaware, it is appropriate to mention that Netfilter who develops iptables is a longstanding team of developers who have contributed code since 1998. Though iptables is for Linux, even admins who use mostly Windows often have a Linux firewall, and in the case of Windows only, at least the concepts of IP routing will be of benefit.

Continue Reading
Try ManageEngine OpManager Free for 30 Days
Download Now

Today's Top Videos:
Understanding That a Social Business Is a Smart Business
Although a lot of businesses are adopting social media strategies, is this enough? According to Michael Brito, the Senior Vice President of Social Business at Edelman Digital, it's not.
Networking on LinkedIn & Why You Better Be Doing It
In today's economy, people understand that networking is important. Whether it is in-person or through social networking sites, for the most part, people try to take advantage of networking.
Next Media Animation: The Process behind the Production
Next Media Animation, a Taiwan-based company, is getting a lot of attention lately for its humorous parodies. WebProNews spoke with Emily Wu, production manager with the company...
Recent Articles:
The Summer PKI Collapsed
"One day we will look at the summer of 2011 as the time when the public key infrastructure (PKI) collapsed," Mike Fratto writes. The Dutch Certificate Authority (CA), DigiNotar, issued at least 531 false certificates for domains from Google to Facebook. The response has been immediate and intense: revoking all DigiNotar signatures.

The ComodoHacker, who is an ideologically-driven Iranian, takes credit for the breach. Allegedly, this is ComodoHacker's second...

Internal Versus External DNS Provision
DDoS attacks and poisoning techniques are posing major issues for IT departments today, and increasingly so. Additionally, the need for greater scale and speed is pushing IT towards resourcefulness.
Introduction to Scapy
Scapy may be the most powerful tool available to network admins. It is an interactive program for packet manipulation that uses simple operations like sending and receiving packets or capturing and cloning them as building blocks for creating...
Scalability and Fault Tolerance with Link...
Link aggregation is a great networking trick to achieve network scalability and fault tolerance. Let's take a look at the general concepts of how link aggregation is setup and the benefits and restrictions that apply. The Link...
Other iEntry Business Resources:
--This email is a service of NetworkNewz--

iEntry, Inc. 2549 Richmond Rd. Lexington KY, 40509
2011 iEntry, Inc. All Rights Reserved Privacy Policy Legal