[9.2.3] Resticting ports

Helmut Schneider jumper99 at gmx.de
Thu Nov 11 12:42:53 UTC 2004


Ketil Froyn wrote:

> On Thu, 2004-11-11 at 09:23, Helmut Schneider wrote:
> 
>> query-source address * port 53;
> 
> Don't do that. DNS forgery is much easier when you do that, and some
> firewalls will probably block queries originating from port 53 as
> well. 
> 
> For more information on DNS forgery, read this:
> 
>   http://cr.yp.to/djbdns/forgery.html

(un)done

Thanks, Helmut

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