Firewalls White Papers

A Simple Guide to Creating a Firewall and Squid Proxy Server

• Tags:
• firewalls,
• filtering,
• firewall,
• appliance

Overview A firewall is extremely important in any environment where systems will be connecting to an insecure network like the Internet. It can also be used to prevent certain types of traffic from leaving a company network. Red Hat Enterprise Linux utilizes the iptables system, which is a kernel-level packet-filtering tool. This paper will show how to set up simple forwarding and filtering rules for a firewall appliance. This paper will cover the configuration and setup of a firewall and squid proxy server. By no means is this meant to be a complete solution; it is a straight forward example of how to get started.

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