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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 MOJAVE
dnsextd
dnsextd(8) BSD System Manager's Manual dnsextd(8) NAME
dnsextd -- BIND Extension Daemon SYNOPSIS
dnsextd DESCRIPTION
dnsextd is a daemon invoked at boot time, running alongside BIND 9, to implement two EDNS0 extensions to the standard DNS protocol. dnsextd allows clients to perform DNS Updates with an attached lease lifetime, so that if the client crashes or is disconnected from the net- work, its address records will be automatically deleted after the lease expires. dnsextd allows clients to perform long-lived queries. Instead of rapidly polling the server to discover when information changes, long-lived queries enable a client to indicate its interest in some set of data, and then be notified asynchronously by the server whenever any of that data changes. dnsextd has no user-specifiable command-line argument, and users should not run dnsextd manually. SEE ALSO
mDNS(1) mDNSResponder(8) For information on Dynamic DNS Update, see RFC 2136 "Dynamic Updates in the Domain Name System (DNS UPDATE)" For information on Dynamic DNS Update Leases, see http://files.dns-sd.org/draft-dns-update-leases.txt For information on Long-Lived Queries, see http://files.dns-sd.org/draft-dns-llq.txt BUGS
dnsextd bugs are tracked in Apple Radar component "mDNSResponder". HISTORY
The dnsextd daemon first appeared in Mac OS X 10.4 (Tiger). Darwin June 1, 2019 Darwin