Date: Fri, 21 Aug 1998 18:28:16 -0700 (PDT) From: Marc Slemko <marcs@znep.com> To: jack <jack@germanium.xtalwind.net> Cc: isp@hub.freebsd.org Subject: Re: [Q] what happens when 1 of N nameservers dies? Message-ID: <Pine.GSO.4.02A.9808211827070.12882-100000@redfish> In-Reply-To: <Pine.BSF.4.02.9808211950150.15050-100000@germanium.xtalwind.net>
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On Fri, 21 Aug 1998, jack wrote: > germanium# whois freebsd.org > > [snip] > > Domain servers in listed order: > > WHO.CDROM.COM 204.216.27.3 > NS1.CRL.COM 165.113.1.36 > NS2.CRL.COM 165.113.1.37 > NS1.IAFRICA.COM 196.7.0.139 > NS2.IAFRICA.COM 196.7.142.133 > > WHO.CDROM.COM is configured as the primary server for the domain, > all others are configured as secondary servers. > > When a DNS server at someother.domain wants to find > www.freebsd.org's IP address it will first query WHO.CDROM.COM, > if that fails it will try NS1.CRL.COM, if that also fails it will > try NS2.CRL.COM, if that fails ..... No, there is no reason why it would do it in that order. It will normally be randomized to start, but even if it isn't you can't assume anything about the order. Everyone querying doesn't know or care who is the primary and who is the secondary. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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