IP masquerading in Linux

[Sebastian Taralunga]

Hello Victor, 

You have to specify a nameserver for the clients. IP
masquerading simply means that the gateway passes all
requests to the outside world and knows how to handle back
the responses. If you do not specify a nameserver, the
clients simply do not know whom to send their
name-resolution requests...

If you want to have the name-server handle your DNS requests
as well you will have to either install a name-server on the
gateway or to use transparent proxy and redirect (using
ipchains) all the DNS requests from the clients to the
appropriate name-servers.

Best Regards, 

Sebastian 
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On Sat, 25 Mar 2000, Victor Tsaran wrote:

> Hello, listers!
> I know some of you already setup IP masquerading on your machines, therefore
> a question. Did you have to specify DNS servers for both client and the
> server or just for the server? Initially, I thought that once the serverhas
> a list of search domains, the client shouldn't care about them, it just
> sends IP packets out to the server. Server forwards them to the output
> chain. Apparently, it looks as though client also needs to have a DNS entry
> to be able to convert names into IP addresses, which are then sent to the
> server anyway. WIndows98 Second Edition resolved this problem by letting the
> client specify only the address of a gateway, yes, even in the DNS field,
> gateway knowing its own search domains, figures out on its own how to
> convert names into IP's.
> Perhaps I am doing something wrong here?
> 
> Regards,
> Vic
> 
> 
> 
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