Date: Tue, 19 Sep 2006 12:16:24 +0300 From: Dominik Zalewski <dzalewski@open-craft.com> To: freebsd-stable@freebsd.org Subject: Re: bind round robin Message-ID: <200609191216.24457.dzalewski@open-craft.com> In-Reply-To: <450FAF42.50401@goodforbusiness.co.uk> References: <450F8777.7080407@gmail.com> <20060919083955.GB87657@e-Gitt.NET> <450FAF42.50401@goodforbusiness.co.uk>
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On Tuesday 19 September 2006 11:50, Dominic Marks wrote: > Oliver Brandmueller wrote: > > Hi. > > > > On Tue, Sep 19, 2006 at 02:00:23PM +0800, pinoyskull wrote: > >> One of my client's domain has multiple IPs for redundancy, i configured > >> his www as such > >> > >> www IN A 10.10.10.10 > >> www IN A 192.168.0.10 > >> > >> Is there a way to prioritize 10.10.10.10 over 192.168.0.10? How do i > >> configure it? > > > > DNS round robin is not about redundancy, the only thing you could have > > that way is a kind of load balancing (not the most sophisticated way, > > though). Whenever one of the servers fails, around half of the requests > > still goes there and then times out/gets conn refused or whatever the > > problem is. Prioritizing is not easily possible. Probably it helps if > > you add one of the IPs more often to the set, but I never tried that and > > did not read the docs on this topic, so before breaking your zone first > > read the specs, if this works! > > > > For serious redundancy with failover and/or load balancing with a good > > leveling you should consider getting a load balancer (be it hardware or > > software), better two so you don't have the single point of failure > > there :-) > > A good software load balancer which supports weighting is pen. In ports. > > http://siag.nu/pen > > /usr/ports/net/pen > > Dominic > > > - Oliver > > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" =46rom pen homepage: "This is pen, a load balancer for "simple" tcp based protocols such as http= or=20 smtp." As I know DNS uses both tcp and udp protocols. =46or failover you can try OpenBSD Packet Filter with CARP protocol. PF can= do=20 load-balacing using different algorithms also. CARP is ported to FreeBSD.=20 More info on: http://pf4freebsd.love2party.net/carp.html Enjoy =2D-=20 Dominik Zalewski | System Administrator OpenCraft t- +2 02 336 0003 w- http://www.open-craft.com
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