How to secure your small business with a PIX firewall

One of the more popular firewall products for the small business market is the Cisco PIX 501. Out of the box it requires just a few configuration entries and you are up and running.


In this guide, we will walk through the steps for configuring your brand new pix at the network edge.


This guide is written for the user who has no knowledge of the PIX firewall. As such, it is not a treatise on network security, but a quick, by-the numbers guide to configuring a PIX firewall with as little jargon as possible.


We are assuming that you have an internet connection with at least one static IP address. While the PIX can easily handle a dynamic IP address (that is the default configuration), you won’t be able to easily configure remote access, VPNs, Mail, or web servers without a static IP address.


Your PIX should have come with an AC adapter, a yellow CAT 5 cable, an orange CAT5 cable and a flat, (typically) baby blue cable with a 9-pin serial connector on one end and an RJ-45 plug on the other.


The yellow CAT5 cable is a standard Ethernet cable and is used to connect your pc or server to the 4-port Ethernet switch built into the PIX.

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