Date: Tue, 16 Jan 2001 13:13:51 +0200 From: "Dave Wilson" <davew@sai.co.za> To: "Troy Settle" <troy@psknet.com> Cc: <freebsd-isp@FreeBSD.ORG> Subject: RE: DNS redundancy & load balancing (Thanks everyone: will test out the options soon) Message-ID: <NEBBJFIIGKGLPEBIJACLOEKLCMAA.davew@sai.co.za> In-Reply-To: <GIEHKBHPBGKJPNMBCOHFOEELCAAA.troy@psknet.com>
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Hi Troy & everyone,
Thanks for your input, I'll give all options a try soon.
Kindest regards
David Wilson
The S.A Internet
#include <std-disclaimer.h>
-----Original Message-----
From: Troy Settle [mailto:troy@psknet.com]
Sent: 15 January 2001 04:14
To: Dave Wilson
Cc: freebsd-isp@FreeBSD.ORG
Subject: RE: DNS redundancy & load balancing
Dave,
I believe you can achive this with some creative routing:
Assuming you have 2 boxes to do DNS, bind the both of the IPs that you
assign for DNS servers to the loopback device, then set up routes for both
IPs to both boxes. If one of the boxes goes down, the route will become
invalid, causing the other box to pull the full load.
Gateway: 192.168.10.1
Box1: fxp0 - 192.168.10.2
lo0 - 192.168.20.2 and 192.168.20.3
Box2: fxp0 - 192.168.10.3
lo0 - 192.168.20.2 and 192.168.20.3
Either use OSPF (ala Zebra), or set up static routes on the gateway. OSPF
is my preference.
--
Troy Settle
Pulaski Networks
540.994.4254
They told me to think out of the box, but I
tripped over it, now I own my own company.
** -----Original Message-----
** From: owner-freebsd-isp@FreeBSD.ORG
** [mailto:owner-freebsd-isp@FreeBSD.ORG]On Behalf Of Dave Wilson
** Sent: Monday, January 15, 2001 9:01 AM
** To: Matthew Horoschun
** Cc: freebsd-isp@FreeBSD.ORG
** Subject: RE: DNS redundancy & load balancing
**
**
** Hi Matthew,
**
** Thanks for getting back to me.
** Yea our NAS assigns our clients both DNS.... unfortunately many of our
** clients are still using Win '95.
**
** Kindest regards
** David Wilson
** The S.A Internet
**
**
**
**
** #include <std-disclaimer.h>
**
** -----Original Message-----
** From: Matthew Horoschun [mailto:matthew@actweb.net]
** Sent: 16 January 2001 08:12
** To: Dave Wilson
** Subject: Re: DNS redundancy & load balancing
**
**
**
**
** Dave Wilson wrote:
**
** > Hi Matthew,
** >
** > Indeed but clients have their primary DNS server set to our
** primary, thus
** if
** > our primary goes down no resolution takes place.
** > Clients have a their seconday DNS set to our secondary DNS, but we've
** found
** > that often M$ machines never even try looking at their secondary DNS
** server.
** > Any ideas ?
**
** Dave,
**
** Do your access servers allocate your customers with Name server IP's on
** connection? Are you specifying both there?
**
** I've seen the same thing in the past... although I have a
** feeling it was a
** bug
** that M$ fixed by about the time 'doze98 came out?... i.e. in DUN1.2?
**
** Matthew.
**
**
**
**
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