Re: [fw-wiz] DNS records for a firewall NAT pool
From: Barney Wolff (barney_at_databus.com)
To: Frank Knobbe <firstname.lastname@example.org> Date: Tue, 29 Jul 2003 18:43:10 -0400
On Tue, Jul 29, 2003 at 04:55:14PM -0500, Frank Knobbe wrote:
> On Tue, 2003-07-29 at 12:17, Barney Wolff wrote:
> > For example, 220.127.116.11 -> p72-185.acedsl.com -> 18.104.22.168 , done
> > by my ISP.
> Adding to that, in most cases you get can get away by entering the IP
> address as the host name in your in-addr.arpa zone. That way the IP
> address 22.214.171.124 can be mapped to the _hostname_ (as _string_) 126.96.36.199,
> which of course is typically resolved back to the IP address.
> So above example would read:
> 188.8.131.52 -> "184.108.40.206" -> 66.1114.72.185 :)
I'd be very wary of dots in a hostname, and of hostnames beginning
with a digit *. FreeBSD's gethostbyname seems to accept a dotted-quad
as a name, but I'm not sure that's universal.
* Names starting with a digit are valid in dns but not valid hostnames.
Some systems care, some don't.
-- Barney Wolff http://www.databus.com/bwresume.pdf I'm available by contract or FT, in the NYC metro area or via the 'Net. _______________________________________________ firewall-wizards mailing list email@example.com http://honor.icsalabs.com/mailman/listinfo/firewall-wizards