DNS, was Re: [Gllug] IPSec

[William Palfreman]

On Wed, 13 Feb 2002, Simon Stewart wrote:

> On Wed, Feb 13, 2002 at 10:34:08AM +0000, will wrote:
> > Jonathan Dye wrote:
> > >>>>incoming UDP is blocked
> > >>>>
> > >>>How do they do DNS then?
> > >>>
> > >>>How do the replies get back from the DNS requests?

I would expect the local internal nameserver to be the only machine with
53/UDP out, with maybe even its own outside-facing interface.  Then
other machines on the network make DNS requests to it internally,
possibly on its internal interface (i.e. if they really do block all
UDP at the firewall, which is possible).

Bill.

-- 
W. Palfreman. 		http://www.palfreman.com/william/
Tel: 0771 355 0354	PGP ftp://ftp.palfreman.com/pub/wfpkey.asc



-- 
Gllug mailing list  -  Gllug at linux.co.uk
http://list.ftech.net/mailman/listinfo/gllug