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You would do better to understand the concepts first, check out the howto's and examples. <a href="http://www.linuxnewbie.org" rel="ugc">http://www.linuxnewbie.org</a>&nbsp;has some good examples.<br />
<br />
There are tools to assist if you really can't be bothered with the finer details but an overview would be.<br />
<br />
Make sure your system is networked OK and everything is working.<br />
<br />
Identify you kernel rev (see ahoffmann's comment) and make sure the relevant modules are configured into the kernel.<br />
<br />
Get a pen and paper and plan your website, what services you want to allow/deny.<br />
<br />
Either use a utility to build your ruleset or start making your own remember that ORDER is IMPORTANT.<br />
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You've got a lot of reading to do so we may not hear from you for a while... :-)<br />
<br />
<br />
Jools<br />

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You would do better to understand the concepts first, check out the howto's and examples. http://www.linuxnewbie.org [http://www.linuxnewbie.org] has some good examples.

There are tools to assist if you really can't be bothered with the finer details but an overview would be.

Make sure your system is networked OK and everything is working.

Identify you kernel rev (see ahoffmann's comment) and make sure the relevant modules are configured into the kernel.

Get a pen and paper and plan your website, what services you want to allow/deny.

Either use a utility to build your ruleset or start making your own remember that ORDER is IMPORTANT.

You've got a lot of reading to do so we may not hear from you for a while... :-)


Jools


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Crikey, you sorted that one out quick!
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How do you configure a linux firewall if you have a dsl line linked to a external modem and your Lan has two other machines in the network? <br />
(steps would be fine enough)
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How do you configure a linux firewall if you have a dsl line linked to a external modem and your Lan has two other machines in the network? 
(steps would be fine enough)

linux firewall configuration

Software firewalls, also known as host-based firewalls, provide a layer of software on one host that controls network traffic in and out of that single machine. Most operating systems now include firewall software, but many available software firewalls include central distribution, antivirus systems and disaster recovery.

Software Firewalls

Security is the protection of information systems from theft or damage to the hardware, the software, and the information on them, as well as from disruption or misdirection of the services they provide. The main goal of security is protecting assets, and an asset is anything of value and worthy of protection.  Information Security is a discipline of protecting information assets from threats through safeguards to achieve the objectives of confidentiality, integrity, and availability or CIA for short. On the other hand, disclosure, alteration, and disruption (DAD) compromise the security objectives.