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Operating Systems
Linux
Gentoo
Properly Sizing an x86 Server for Internet DNS?
Post 302114049 by zazzybob on Thursday 12th of April 2007 07:23:22 AM
04-12-2007
We're running a couple of PIII's in production:
model name : Intel(R) Pentium(R) III CPU family 1133MHz
Each of these has 4GB RAM, but we're rarely using above 600Mb of it, the rest is cached.
These two servers have a network "load-balancer" in front of them (does nothing more than round-robining DNS requests at the two backend nameservers).
And we host >40,000 zones (yes I work for a DNS company
) - these servers handle these zones, and over 1 million queries per hour per server without issues.
EDIT: I also recommend Gentoo - once you use portage you'll never look back!
Cheers,
ZB
model name : Intel(R) Pentium(R) III CPU family 1133MHz
Each of these has 4GB RAM, but we're rarely using above 600Mb of it, the rest is cached.
These two servers have a network "load-balancer" in front of them (does nothing more than round-robining DNS requests at the two backend nameservers).
And we host >40,000 zones (yes I work for a DNS company
) - these servers handle these zones, and over 1 million queries per hour per server without issues. EDIT: I also recommend Gentoo - once you use portage you'll never look back!
Cheers,
ZB
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LEARN ABOUT DEBIAN
mdns-scan
MDNS-SCAN(1) General Commands Manual MDNS-SCAN(1) NAME
mdns-scan - Scan for mDNS/DNS-SD services published on the local network SYNOPSIS
mdns-scan DESCRIPTION
mdns-scan is a tool for scanning for mDNS/DNS-SD published services on the local network. It issues a mDNS PTR query to the special RR _services._dns-sd._udp.local for retrieving a list of all currently registered services on the local link. OPTIONS
mdns-scan has no commandline options. NOTES
mdns-scan is not a good mDNS citizen since it queries continuously for services and doesn't implement features like Duplicate Suppression. It is intended for usage as a debugging tool only. mdns-scan is incomplete since it doesn't resolve mDNS services for you - it just dumps their PTR RRs. To understand these records you need minimal knowledge of DNS-SD and how it works. mdns-scan does not terminate on its own behalf. It scans for services continuously until the user kills it by pressing C-c. mdns-scan does not rely on a local mDNS responder daemon. It has no dependencies besides the GNU libc. It has been tested on Linux only. mdns-scan does NOT scan for local mDNS enabled hosts or A/AAAA RRs, it scans for DNS-SD registered services, nothing else. SEE ALSO
mDNSResponder(8) AUTHOR
mdns-scan has been written by Lennart Poettering <mzqrovna@0pointer.de> 0.4 Jan 21, 2004 MDNS-SCAN(1)