On 2010-11-05T22:29:01, pch0317 wrote: > How to check number of DNS request to current DNS machines (how to > check current DNS load).
The first step is to identify the dns server (software like bind) you use, then you want to consult the documentation for said software to answer your question of logging capability. If that does not work identify peak load on the current hosts (assuming they only run the dns server). Then you can sample network traffic (tcpdump) and identify number of dns requests either via tcpdump or something like wireshare. > How to match new server components like processor, memory and other > to this load. You have your current servers as 1 data point. You will probably be able to find processor speed mapping between your current CPU and the ones you are considering (spec mark or similar). dns is a distributed database so you need to figure out what the working set of records are. Another option, given that memory is relatively inexpensive, is to test various configurations with the new server in production rotation. dns is a network service, if you plan on increasing load make sure you have sufficient bandwith. > Is there any graph (pattern) wich show relation between number of > DNS request and hardware power. I doubt you will find something directly related. You want to look for something specific to your dns server (software), and match as many other variables like os as possible. Good luck! /Allan -- Allan Wind Life Integrity, LLC <http://lifeintegrity.com> -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: http://lists.debian.org/[email protected]
