Shorewall users - Oct 2002 - Pls help to set the firewall and understand the IP LAYOUT

Hi Everyone,

I have got confused to lay out the IP addresses, I hope you guys will
help me to get that cleared. I''m new to Linux and wanted to use Linux
as
Firewall and then later as web server.

I have 8 public IP addresses from my ISP 1 is occupied by the router and
one is broadcast and one is network. I got left 5 to use. Range
x.x.201.152 to x.x.201.158 Available to use x.x.201.154 to x.x.201.157

A this time I have following setting and working perfectly without any
firewall Current setting, are W2K servers.

x.x.201.154 Web Server (Hosting 12 web site) 
x.x.201.155 DNS 1 (Local DNS but open to Public)
x.x.201.156 is free
x.x.201.157 is free

     x.x.153                                  
----ISP Router/Gateway->--------HUB---->- Servers (.154,155,156)

I have Linux machine RH 7.3, I want to put this machine between router
and Hub.
Pls help how do I set my IP addresses to Linux box so it will translate
to the DNS and Web server and provide services to public. 


Thanks and Best Regards,
Arif

Arif Mahmood wrote:
> Hi Everyone,
> 
> I have got confused to lay out the IP addresses, I hope you guys will
> help me to get that cleared. I''m new to Linux and wanted to use
Linux as
> Firewall and then later as web server.
> 
> I have 8 public IP addresses from my ISP 1 is occupied by the router and
> one is broadcast and one is network. I got left 5 to use. Range
> x.x.201.152 to x.x.201.158 Available to use x.x.201.154 to x.x.201.157
> 
> A this time I have following setting and working perfectly without any
> firewall Current setting, are W2K servers.
> 
> x.x.201.154 Web Server (Hosting 12 web site) 
> x.x.201.155 DNS 1 (Local DNS but open to Public)
> x.x.201.156 is free
> x.x.201.157 is free
> 
>      x.x.153                                  
> ----ISP Router/Gateway->--------HUB---->- Servers (.154,155,156)
> 
> I have Linux machine RH 7.3, I want to put this machine between router
> and Hub.
> Pls help how do I set my IP addresses to Linux box so it will translate
> to the DNS and Web server and provide services to public. 
Please read http://www.shorewall.net/shorewall_setup_guide.htm then post 
again if you have specific questions. That guide deals with setups very 
much like yours.

-Tom
-- 
Tom Eastep    \ Shorewall - iptables made easy
AIM: tmeastep  \ http://www.shorewall.net
ICQ: #60745924  \ teastep@shorewall.net