Re: Closing Ports on single server with multiple IP's?

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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.
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