I think there are really 2 sides to this, whether your after an OS easy to maintain, with great stability, or best performance. I think you'll fall in love with freebsd if you give it a try, on otherhand if your after as many queries per second for a machine as possible, I have had better experience using epoll on linux vs kqueue on freebsd, programming network applications with libevent.

Then you have to factor in if you plan on getting the "latest" hardware all the time, which linux tends to support much quicker. Factor I usually consider is how much more performance vs headache of linux administration. Also consider freebsd has native ZFS support making it easy to swap in/out drives quickly for any I/O bottlenecks, as well as much more configuration options for anything you install though a "make config" in ports directory.

The last consideration should be your knowledge set of unix in general,
if your linux understanding is really good, then it may be time to graduate from newbie linux admin to senior solaris/freebsd admin, only installing linux where necessary to make your life as easy as possible.


Dan.





On Fri, 11 Mar 2011, Fajar A. Nugraha wrote:

On Thu, Mar 10, 2011 at 2:52 AM, pollex <andres.vi...@gmail.com> wrote:
Hi, I want to know in your experience what is the best operating
system to run bind for an ISP. We currently have Debian for the 5
Cache servers and for the 2 Authoritative servers.
We have around 111851 success querys in the cache servers and around
7267 zones created in the authoritative servers.
We are doing a major re analysis for all the arquitecture and Debian
is changing to soon their versions and only have support for 1 version
before so I dont know if this is best option

If your main concern is OS support I suggest go with RHEL (or if you
don't have money and just need updates, Centos). RHEL currently
supports three versions of their OS: RHEL 4 - 6 as part of 7-year
regular life cycle
(https://access.redhat.com/support/policy/updates/errata/).

If your concern is performance, then I say CPU arch matters more than
OS. I've had much better performance with bind running on top of
x86_64 compared to sparc or ppc.

--
Fajar
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