Lan to Wan reprise

[Claude Jones]

Arthur Pemberton wrote:

> Claude Jones wrote:
>
>> The web server works.
>> The box has internet access.
>> Machines on the Lan are getting DHCP assigned IP addresses. They are 
>> also able to see my lone web page.
>> However, the machines on the Lan can't get past the firewall. It's 
>> not a DNS problem because it doesn't go away if you put an IP address 
>> in. I can ping the Wan NIC from the LAN but nothing further than that.
>> I've reviewed the procedures over and over  that I used successfully, 
>> and I can't find the problem.
>> DHCPD loads without errors.
>> I've checked and rechecked the firewall and SELinux settings, and 
>> they appear to be the same as at the office.
>> I've reviewed the network settings for my NICs twenty times.
>> IP forwarding and masquerade have been set up.
>> What have I overlooked??? I have to have this running in three hours 
>> so any suggestions would be greatly appreciated!
>
> I have almost exactly the same setup as you up and running. See my 
> firewall iptables script (it may help you):
> http://pembo13.dalive.com/scripts/bash/firewall.php
>
I'm looking at your script now. When I get done with all the mods to 
work with my system, how do I run it? Forgive me for I'm new to all this...