[CentOS] firewall dilemma

JC hiep at ee.ucr.edu
Thu Nov 3 14:03:24 UTC 2005

On Thu, 3 Nov 2005, Ryan wrote:

> On Wednesday 02 November 2005 02:53 pm, JC wrote:
>> Hi everyone,
>> I have this problem that I'm not sure what's the best solution for it.  I
>> need your input & help...
>> I have an internal network behind a hardware firewall.  All traffics go
>> thru. the firewall.  One of the firewall's rules is that it doesn't allow
>> internal network accesses internal resources that travels outside then
>> come back.  In the other words, it drops all packets originate from inside
>> the network that travels outside and then come back to access internal
>> resources.
>> For example: I have web server (used internal ip behind the
>> firewall, internal network can access this web server with
>>, but they can't access http://www.mydomain.com.  Assume
>> that I have static IP (xxx.xxx.xxx.xxx) maps to and dns record
>> www.mydomain.com points to xxx.xxx.xxx.xxx
>> What I want is to allow users inside the network be able to access
>> http://www.mydomain.com instead of
>> Here is my question:
>> should I change the rule of the firewall?  If so, is there a security
>> risk?
>> Is there any other solution for this?
>> By the way, I don't have an internal DNS, I use my ISP DNS service.
>> Thank you so much for your help,
>> JC
> Modify the hosts file of your clients to point
> to www.mydomain.com
> Under windowsXP, open the file here: C:\WINDOWS\SYSTEM32\DRIVERS\ETC with
> notepad.
> add in a line:
> 	www.mydomain.com
what about win 9x?  I tried that on win98, but it's not working?  Is there 
any additional setting I have to make?


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