Date: Thu, 5 Mar 1998 11:49:13 -0500 From: sbabkin@dcn.att.com To: tom@sdf.com, njs3@doc.ic.ac.uk Cc: Sarnoff.COM!rminnich@minas-tirith.pol.ru, tarkhil@minas-tirith.pol.ru, hackers@FreeBSD.ORG Subject: RE: Cluster? Message-ID: <C50B6FBA632FD111AF0F0000C0AD71EE4132D8@dcn71.dcn.att.com>
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> ---------- > From: njs3@doc.ic.ac.uk[SMTP:njs3@doc.ic.ac.uk] > > > DNS? DNS already has excellent fault-tolerant capabilities. > > I should have mentioned that I was had dynamic DNS in mind, in this > scenario the two (or n) DNS servers could share the data structures in > a > shared memory region so that an update by any would be reflected in > the > address spaces of all the others. I agree that DNS has fault > tolerant > capabilities but I wouldn't call them excellent, its annoying to have > to > wait for requests to the primary to time out before the resolver > library > starts hitting on the secondaries. > I have a simple solution for this :-) A daemon that every N minutes sends a request to all DNS servers listed and moves the one from which it got the first reply to the first position in this file. Of course, it will make additional overhead but it will be highly portable and do not touch any internals of already compiled programs. -SB To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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