From owner-freebsd-isp Mon Jan 15 21:10:40 2001 Delivered-To: freebsd-isp@freebsd.org Received: from mail1.netsol.net (mail.netsol.net [216.179.148.10]) by hub.freebsd.org (Postfix) with ESMTP id A5D5637B401 for ; Mon, 15 Jan 2001 21:10:22 -0800 (PST) Received: from fire ([63.194.3.101]) by mail1.netsol.net (Post.Office MTA v3.5.3 release 223 ID# 0-12345L500S10000V35) with SMTP id net; Mon, 15 Jan 2001 21:17:58 -0800 Message-ID: <002b01c07f7a$9b6a8180$6503c23f@XGforce.com> Reply-To: "jl" From: "jl" To: "Jason Fesler" , "Dave Wilson" Cc: "Matthew Horoschun" , References: Subject: Re: DNS redundancy & load balancing Date: Mon, 15 Jan 2001 21:10:13 -0800 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2314.1300 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2314.1300 Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org You may check out www.xgforce.com ----- Original Message ----- From: Jason Fesler To: Dave Wilson Cc: Matthew Horoschun ; Sent: Monday, January 15, 2001 7:58 AM Subject: RE: DNS redundancy & load balancing > > Indeed but clients have their primary DNS server set to our primary, thus if > > our primary goes down no resolution takes place. > > Clients have a their seconday DNS set to our secondary DNS, but we've found > > that often M$ machines never even try looking at their secondary DNS server. > > Any ideas ? > > Move your DNS servers to different IP addresses, ones that are not > published. Assign virtual IP addresses (the published ones). If you have > a DNS failure or host failure, you can remove (if needed) the published > virtual IP, and put it on as a second virtual IP on the remaining host. > If you're good, you can even automate this with creative use of a third > host for monitoring and administering the IP changes. > > OF course, you can also just solve this with hardware, ala Alteons and > their like, but most ISP's are too cheap. [Been there, done that, got > screwed on the tshirt. ;-)] > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-isp" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message