Closing Ports on single server with multiple IP's?

[Lonnie Cumberland]

I'm actually using qmail and wonder if it allows for that as well?

Just an idea, but in my Fedora 3 "setup" command in a bash shell and as 
root, I can adjust the ports through the customize "firewall" settings.  
Is there a file in my etc directory that holds this information as it 
shows all of my aliased eth0:n IP's and services that are allowed.

Thanks,

Lonnie Cumberland
OutStep Technologies Incorporated
CELL: 313-333-2935
FAX: 619-639-2888



David Cary Hart wrote:

>On Wed, 2005-07-27 at 10:59 -0500, Lonnie Cumberland wrote:
>  
>
>>Hi All,
>>
>>We have a server set up with multiple IP's aliased to it through eth0:1, 
>>eth0:2, etc.....
>>
>>Each (aliased) IP currently has the same ports open on it as the others 
>>and I want to turn off some of the ports on all of the IP except for 
>>what IP is being used.
>>
>>For example we have SMTP on port 25 which should be listening only on 2 
>>of our IP's and not on the rest of them as well.
>>
>>How can I turn of various ports from listening on these IP's?
>>
>>    
>>
>Typically, this is done through the software. For example, by default
>Postfix will listen on 25 on all interfaces; Apache on 80. However, both
>packages offer a configuration option that allows one to specify IP
>addresses.
>  
>