Why not have your a records such that the web site is midwestls.com?
Most browsers will fail over to adding www if that first one fails.
This would allow you to have a second record for www.midwestls.com.
Then tell everyone to use "midwestls.com" and you then have something
that can play the failover role at a totally different location or at
the same location.

One day someone will create a means of setting priorities for DNS
(something like those used for mx records) that would allow someone to
have a failover environment that is only accessible when the master site
is unavailable.  Perhaps Internic or the DNRs can implement it such that
the tertiary DNS servers only come into play when the primary is bogging
down or is dead.

It's either that or we all work on getting budgets that can support
fully redundant failover environments, including ISPs, gateways and
backbones.

Danny

-----Original Message-----
From: Corey Hudson [mailto:[EMAIL PROTECTED]
Sent: Thursday, January 27, 2005 9:07 AM
To: GnatBox Users Group
Subject: [gb-users] Multiple external gateways

We have had 2 Internet outages over the past year on our T1.  Both
outages
had us down for hours.  So, I decided to bring in a secondary connection

using our local cable company.  I thought that it would be better to use

another type of network using a completely different type of network.
The
idea of bringing in another T1 wasn't appealing.  It would still come
into
our building from the same local CO, which would most likely mean within

the same physical cable.  Not good, especially with all of the road
widening going on here.

Currently, I have our internal network accessing our service network and

the Internet through  the secondary (cable) network.  The "outside
world"
accesses our service network (website) through the primary (T1)
gateway.  Since we have complete control our internal network DNS/DHCP
addressing, changing from one gateway to another is not a
problem.  However, providing a backup external gateway is another
problem.

I looked at GTA's high available option and just scratch my head.  This
doesn't seem to be an ideal solution since it is still only using one
external gateway.  In the 10 years we've used firewalls they have never
failed. Yet the external network has.  So, placing safeguards at a point

that is probably the least point of failure between our customers and
our
website, e-mail and ftp server doesn't help us.  I'm I missing something

here?  I always had another firewall on standby that I could switch out
in
minutes, and I realize there are companies out there that can't be down
for
even seconds but when the external network is down for hours what good
is
having 2 firewalls in a high availability configuration?

Enough about the problem and GTA options.  What I came up with was to
provide another URL to our customers.  So, our primary site would be
www.midwestls.com and our secondary site would be www.midwestls2.com
(not
yet set up).  We would notify our customers of the alternate URL if they

have a problem reaching us through the primary URL.  Each ISP would
provide
us with the appropriate external DNS for each URL.

Is there a better method to doing this?  Obviously, the ideal situation
would be to provide our customers with one URL that would be a lot more
dynamic.

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