Re: Migrating DNS servers, need advice on hardware
How can observer the query count? Is there a command or table or something or is it just how many hits the systems gets on port 53 identified from some form of logging software? BIND logs hit statistics periodically to syslog, and you can use rndc stats to append statistics immediately to a file. See the BIND manual for details. Other means: The BIND manual tells how to turn on bind's query log, which is normally turned off for performance/resource reasons. On a very lightly loaded DNS server, it can be left on, and on a medium-loaded server, it may be practical to turn it on for a short while to collect some usage data. On a Solaris system, snoop can help (as can tcpdump on other *nix systems), e.g. to get a frame of reference regarding your load, inspect 1000 packets to port 53, measuring how many seconds it takes to collect them. ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Migrating DNS servers, need advice on hardware
Other means: The BIND manual tells how to turn on bind's query log, which is normally turned off for performance/resource reasons. On a very lightly loaded DNS server, it can be left on, and on a medium-loaded server, it may be practical to turn it on for a short while to collect some usage data. On a Solaris system, snoop can help (as can tcpdump on other *nix systems), e.g. to get a frame of reference regarding your load, inspect 1000 packets to port 53, measuring how many seconds it takes to collect them. ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users Thanks for the response John! I'm assuming that a modern multi core system in a SOHO or small business environment can have the query log turned on continuously as should be more then powerful enough from what many other people have said. Of course full enterprise scale is another matter!! Will try snoop soon as I have already managed to get Bind working using OpenSolaris on Sun's Virtual Box in a small-zone configuration. Of course just for testing purposes is running on a laptop and only has root name servers and very limited records meaning round 5 in forwards and reverse zone. But handles the load perfectly as I can actually take the laptop off the main primary and secondary DNS in the host OS and just use the DNS server in the zone from the guest OS in Vbox. Now from this little escapade of mine I have learned two things: the first being the power of modern hardware and virtualization and the second being that one doesn't need to go OTT for a DNS server in a small to moderate sized network - only a virtualized system or Solaris zone will do the trick or chroot combined with many other services as most rack infrastructure today can handle upto 24GB RAM+. This has been excellent guys - many thanks to all constructive comments and help ;-) Regards, Kaya ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Migrating DNS servers, need advice on hardware
Frank Bulk wrote: Perhaps the inverse would be more interesting: what's the lowest-spec hardware that could host an OS that would run the latest version of BIND. =) It's not exactly low-end hardware, but I have BIND 9.4.2 running on my iPhone. AlanC ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Migrating DNS servers, need advice on hardware
James Pratt wrote: You should really improve your google skills. If you can't even figure out where I'm *at* well you probably really should not be in the DNS business at all.. :) -Original Message- From: Kaya Saman [mailto:samank...@netscape.net] Sent: Friday, September 18, 2009 11:44 PM To: James Pratt Subject: Re: Migrating DNS servers, need advice on hardware Hmm... are you a student or admin?? As your email states you from Norwich university! Is that Norwich in UK or US?? Kaya ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users Didn't check Google at all as it didn't come to mind, sorry!!! You wound me up so much in your personal mail that my mind was pre-occupied with wondering what I was doing trying to get into networks and related services completely and why I shouldn't just go join the local supermarket. Even after studying Elec Eng. at the third top university in UK, and burying myself in a Cisco CCNA course for the last year and not even going outside due to study - but what's the point if by your and other 'experts' views I'm nothing then why do I bother killing myself Ok after checking google I found you on Linkedin which I'm also a member of!! http://www.linkedin.com/in/jprattnu is your page if not mistaken.. Anyway you see how bad you can make one feel just from them asking one innocent question! With many more years of experience then myself fine my questions may seem trivial and arbitrary but unfortunately there is no junior Bind mailing list for people with less experience - we have to swim in the deep end with everyone else but yet endure all the remarks and abuse which isn't fair! ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Migrating DNS servers, need advice on hardware
You need to consider three components for memory: OS + other services; the zone files you load + cache you want. On Fri, Sep 18, 2009 at 6:43 PM, Kaya Saman samank...@netscape.net wrote: Hi, currently I have 2 Solaris 9 boxes in my home based data center running as primary and secondary dns servers; they are Sun Netra T105's with 440MHz SPARC prcossors and 320MB of RAM. http://www.optiplex-networks.com/lab/lab.html Basically as I am going to be moving abroad since I have finished my studies now and am about to get a job I will need to replace them in my new residence and was just wondering if anyone had any idea of the hardware specs I would need. As in should I be going for a single socket or dual socket server and how much memory would I need also if I should virtualize the systems at all? - Basically get one dual socket quad core system then run something like Sun xVM or Citrix Xen on it and then have an instance of Primary and Secondary or just use Solaris Zones as I will be whacking OpenSolaris most likely onto them anyway I am quite confident that 1-2GB of memory should be sufficient to handle the OS and multiple lookups as I'm planning on tying 3 sites together with them plus using them as main servers for my domain also. I mean an idea of hardware was to get 1 or 2 Sun Fire X2250s solely for DNS then run the Named service in a Small-Zone which I feel is equivalent to running them chrooted on a linux system?? Which I used to run bind on Debian Etch chrooted before the Netra's came along and I started learning Solaris! What can anyone recommend??? Many thanks for any responses :-) Kaya ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
RE: Migrating DNS servers, need advice on hardware
Perhaps the inverse would be more interesting: what's the lowest-spec hardware that could host an OS that would run the latest version of BIND. =) Frank -Original Message- From: bind-users-boun...@lists.isc.org [mailto:bind-users-boun...@lists.isc.org] On Behalf Of Barry Margolin Sent: Saturday, September 19, 2009 12:09 AM To: comp-protocols-dns-b...@isc.org Subject: Re: Migrating DNS servers, need advice on hardware In article mailman.535.1253329254.14796.bind-us...@lists.isc.org, Kaya Saman samank...@netscape.net wrote: Since you haven't mentioned how many zones and records you're hosting, how do you expect anyone to guess how much hardware you need? Yes thank you for pointing that out! I do apologize as I mentioned I've just finished my studies and am as of yet quite in-experienced yet with certain things so please do not frown upon me for that! - I know many people here are top notch pro's and I do not fall into that category but someone who is eager to get there :-) Anyhow, I have 4 zone files for 1 domain currently and I'm using 2 views; internal and external. I hope to expand too once I have more finances available to me and start mirroring Linux distros and perhaps even OpenSolaris and BSD as well. But for now it's fairly simple stuff! I have noticed however that with the current setup my secondary DNS is getting used quite a bit too as both systems are doing quite a few translations - luckily I have a Cisco router in place so my WAN connection is stable and does not crash like with a consumer based router.. In private email, he told me he has 59 forward and reverse records in the internal view, and 22 of each in the external view. This is nothing. A 10-year-old Pentium should be able to handle this without breaking a sweat. -- Barry Margolin, bar...@alum.mit.edu Arlington, MA *** PLEASE don't copy me on replies, I'll read them in the group *** ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Migrating DNS servers, need advice on hardware
Frank Bulk wrote: Perhaps the inverse would be more interesting: what's the lowest-spec hardware that could host an OS that would run the latest version of BIND. =) Frank Silly guess, but a cell phone running linux?? (with static IP could be a mobile domain server) As stated previously I have it running on 440MHz SPARC currently with 360MB RAM. I guess this could be pushed down to a PI or PII, --- I am aware of the differences between the CISC based 64bit SPARC chip and the RISC based 32bit Intel ;-) incase any one has any objections... ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Migrating DNS servers, need advice on hardware
Kaya Saman wrote:
Frank Bulk wrote:
Perhaps the inverse would be more interesting: what's the lowest-spec
hardware that could host an OS that would run the latest version of
BIND. =)
Frank
Silly guess, but a cell phone running linux?? (with static IP could be
a mobile domain server)
As stated previously I have it running on 440MHz SPARC currently with
360MB RAM. I guess this could be pushed down to a PI or PII, --- I
am aware of the differences between the CISC based 64bit SPARC chip
and the RISC based 32bit Intel ;-) incase any one has any objections...
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It's not Bind or perhaps is some sort of hacked out version but
basically since Cisco IOS comes with it's own DNS server which I have
dabbled in on my 857W at home, being based round BSD I presume with the
right OS one could run Bind comfortably on that??
Taken from output of show version: Cisco 857W (MPC8272) processor
(revision 0x200) with 59392K/6144K bytes of memory.
I'm pretty sure the little 857W would run Bind if someone actually was
able to build BSD on it or so.. it has 64MB of RAM too so should be
good enough for at least 5 people. {provided one takes out the systems
routing capability though as the way I use the router is maxed out lol}
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Re: Migrating DNS servers, need advice on hardware
A very decent performance can be achieved on a K6 330MHz with 128MB, also running all sorts of other servers. This HW is from about 1995 and still sufficient for BIND and more. Kaya Saman wrote: Frank Bulk wrote: Perhaps the inverse would be more interesting: what's the lowest-spec hardware that could host an OS that would run the latest version of BIND. =) Frank Silly guess, but a cell phone running linux?? (with static IP could be a mobile domain server) As stated previously I have it running on 440MHz SPARC currently with 360MB RAM. I guess this could be pushed down to a PI or PII, --- I am aware of the differences between the CISC based 64bit SPARC chip and the RISC based 32bit Intel ;-) incase any one has any objections... ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users -- Best regards Sten Carlsen No improvements come from shouting: MALE BOVINE MANURE!!! ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Migrating DNS servers, need advice on hardware
Small home linksys router running open WRT can do the job, with 16MB of RAM and some low powered MIPS CPU. On Saturday, September 19, 2009, Frank Bulk frnk...@iname.com wrote: Perhaps the inverse would be more interesting: what's the lowest-spec hardware that could host an OS that would run the latest version of BIND. =) Frank -Original Message- From: bind-users-boun...@lists.isc.org [mailto:bind-users-boun...@lists.isc.org] On Behalf Of Barry Margolin Sent: Saturday, September 19, 2009 12:09 AM To: comp-protocols-dns-b...@isc.org Subject: Re: Migrating DNS servers, need advice on hardware In article mailman.535.1253329254.14796.bind-us...@lists.isc.org, Kaya Saman samank...@netscape.net wrote: Since you haven't mentioned how many zones and records you're hosting, how do you expect anyone to guess how much hardware you need? Yes thank you for pointing that out! I do apologize as I mentioned I've just finished my studies and am as of yet quite in-experienced yet with certain things so please do not frown upon me for that! - I know many people here are top notch pro's and I do not fall into that category but someone who is eager to get there :-) Anyhow, I have 4 zone files for 1 domain currently and I'm using 2 views; internal and external. I hope to expand too once I have more finances available to me and start mirroring Linux distros and perhaps even OpenSolaris and BSD as well. But for now it's fairly simple stuff! I have noticed however that with the current setup my secondary DNS is getting used quite a bit too as both systems are doing quite a few translations - luckily I have a Cisco router in place so my WAN connection is stable and does not crash like with a consumer based router.. In private email, he told me he has 59 forward and reverse records in the internal view, and 22 of each in the external view. This is nothing. A 10-year-old Pentium should be able to handle this without breaking a sweat. -- Barry Margolin, bar...@alum.mit.edu Arlington, MA *** PLEASE don't copy me on replies, I'll read them in the group *** ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Migrating DNS servers, need advice on hardware
In article mailman.533.1253324630.14796.bind-us...@lists.isc.org, Kaya Saman samank...@netscape.net wrote: Hi, currently I have 2 Solaris 9 boxes in my home based data center running as primary and secondary dns servers; they are Sun Netra T105's with 440MHz SPARC prcossors and 320MB of RAM. http://www.optiplex-networks.com/lab/lab.html Basically as I am going to be moving abroad since I have finished my studies now and am about to get a job I will need to replace them in my new residence and was just wondering if anyone had any idea of the hardware specs I would need. Since you haven't mentioned how many zones and records you're hosting, how do you expect anyone to guess how much hardware you need? -- Barry Margolin, bar...@alum.mit.edu Arlington, MA *** PLEASE don't copy me on replies, I'll read them in the group *** ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Migrating DNS servers, need advice on hardware
Since you haven't mentioned how many zones and records you're hosting, how do you expect anyone to guess how much hardware you need? Yes thank you for pointing that out! I do apologize as I mentioned I've just finished my studies and am as of yet quite in-experienced yet with certain things so please do not frown upon me for that! - I know many people here are top notch pro's and I do not fall into that category but someone who is eager to get there :-) Anyhow, I have 4 zone files for 1 domain currently and I'm using 2 views; internal and external. I hope to expand too once I have more finances available to me and start mirroring Linux distros and perhaps even OpenSolaris and BSD as well. But for now it's fairly simple stuff! I have noticed however that with the current setup my secondary DNS is getting used quite a bit too as both systems are doing quite a few translations - luckily I have a Cisco router in place so my WAN connection is stable and does not crash like with a consumer based router.. ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Migrating DNS servers, need advice on hardware
In article mailman.535.1253329254.14796.bind-us...@lists.isc.org, Kaya Saman samank...@netscape.net wrote: Since you haven't mentioned how many zones and records you're hosting, how do you expect anyone to guess how much hardware you need? Yes thank you for pointing that out! I do apologize as I mentioned I've just finished my studies and am as of yet quite in-experienced yet with certain things so please do not frown upon me for that! - I know many people here are top notch pro's and I do not fall into that category but someone who is eager to get there :-) Anyhow, I have 4 zone files for 1 domain currently and I'm using 2 views; internal and external. I hope to expand too once I have more finances available to me and start mirroring Linux distros and perhaps even OpenSolaris and BSD as well. But for now it's fairly simple stuff! I have noticed however that with the current setup my secondary DNS is getting used quite a bit too as both systems are doing quite a few translations - luckily I have a Cisco router in place so my WAN connection is stable and does not crash like with a consumer based router.. In private email, he told me he has 59 forward and reverse records in the internal view, and 22 of each in the external view. This is nothing. A 10-year-old Pentium should be able to handle this without breaking a sweat. -- Barry Margolin, bar...@alum.mit.edu Arlington, MA *** PLEASE don't copy me on replies, I'll read them in the group *** ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Migrating DNS servers, need advice on hardware
In article mailman.537.1253337654.14796.bind-us...@lists.isc.org, Kaya Saman samank...@netscape.net wrote: In private email, he told me he has 59 forward and reverse records in the internal view, and 22 of each in the external view. This is nothing. A 10-year-old Pentium should be able to handle this without breaking a sweat. Thanks Barry, as I did mention in the beginning it is a home lab setup for me to learn about network services and infrastructure a little so that when I do get to industry I understand the basics and at least have junior admin capabilities. But still I will be looking for a new machine so probably what I will do is grab a Sun Fire X2250 single socket quad core Xeon with 2GB of memory so that I can either use as virtualized primary and secondary or alternatively run other services such as web server, mail server etc on top! My point was that this is such a trivial DNS server that you can use whatever you want. And running it on the same machine as other services should be no problem. How can observer the query count? Is there a command or table or something or is it just how many hits the systems gets on port 53 identified from some form of logging software? BIND logs hit statistics periodically to syslog, and you can use rndc stats to append statistics immediately to a file. See the BIND manual for details. -- Barry Margolin, bar...@alum.mit.edu Arlington, MA *** PLEASE don't copy me on replies, I'll read them in the group *** ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
RE: Migrating DNS servers, need advice on hardware
You should really improve your google skills. If you can't even figure out where I'm *at* well you probably really should not be in the DNS business at all.. :) -Original Message- From: Kaya Saman [mailto:samank...@netscape.net] Sent: Friday, September 18, 2009 11:44 PM To: James Pratt Subject: Re: Migrating DNS servers, need advice on hardware Hmm... are you a student or admin?? As your email states you from Norwich university! Is that Norwich in UK or US?? Kaya ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Migrating DNS servers, need advice on hardware
In private email, he told me he has 59 forward and reverse records in the internal view, and 22 of each in the external view. This is nothing. A 10-year-old Pentium should be able to handle this without breaking a sweat. Thanks Barry, as I did mention in the beginning it is a home lab setup for me to learn about network services and infrastructure a little so that when I do get to industry I understand the basics and at least have junior admin capabilities. But still I will be looking for a new machine so probably what I will do is grab a Sun Fire X2250 single socket quad core Xeon with 2GB of memory so that I can either use as virtualized primary and secondary or alternatively run other services such as web server, mail server etc on top! How can observer the query count? Is there a command or table or something or is it just how many hits the systems gets on port 53 identified from some form of logging software? Sorry if this thread wasted everyones time! ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
