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On 06.05.2012 01:01, Kristian Fiskerstrand wrote:
> Hi,
>
> I've been playing around with some thoughts on how to improve the
> calculation of DNS Service Record (SRV) weights lately[0]. I
> would, however, like to make use of the experience of others in
> continuing this process.
I have then implemented[1, 2] a working prototype of an updated
version of [0] taking into account response-times as measured from 3
different locations in Europe (I welcome more, if anyone is up for
running a measuring client[3, 4]).
Currently weights are only created for an EU pool, but this approach
should make it easier to also create other geographical pools (only
clients needs to be installed, instead of a full mirror of the site)
Bandwidth adjustments are currently not implemented.
My test server can be accessed at [5].
########################################################
Current data
########################################################
Initialization variables;
$max_R = 50; // n in document
$error_adjustment = 10; //phi
$alpha = 100;
$beta_R = 1;
$beta_B = 1;
$beta_P = 1;
$rho = 100; // Addon for reverse-enabled server
$y = 2;
And the current weights are
Array
(
[keyserver.ccc-hanau.de] => 150
[ice.mudshark.org] => 135
[key-server.org] => 45
[keyservers.org] => 1557
[pgp.uni-mainz.de] => 36
[keyserver.fug.com.br] => 0
[keyserver.oeg.com.au] => 225
[schluesseldienst.hauke-lampe.de] => 274
[pgpkeys.mallos.nl] => 0
[keyserver.fr] => 30
[pks.aaiedu.hr] => 0
[sks.spodhuis.org] => 484
[keyserver.pki.scientia.net] => 180
[keyserver.rayservers.com] => 148
[keys.stueve.us] => 149
[pgp.codelabs.ru] => 260
[liberty.antagonism.org] => 152
[pgp.cert.am] => 177
[test.surfnet.nl] => 114
[pgp.rediris.es] => 0
[keyserver.cais.rnp.br] => 132
[sks.es.net] => 134
[keys.niif.hu] => 218
[keyserver.novomundo.com.br] => 149
[zimmerman.mayfirst.org] => 322
[dionysus.ugcs.caltech.edu] => 142
[keys.wuschelpuschel.org] => 0
[sks.karotte.org] => 305
[keys.n3npq.net] => 143
[keys.jbj.org] => 146
[keyserver.layer42.net] => 140
[www.mainframe.cx] => 136
[sks.powdarrmonkey.net] => 170
[keyserver.durcheinandertal.ch] => 403
[keyserver.leg.uct.ac.za] => 157
[keyserver.serviz.fr] => 173
[disunitedstates.com] => 160
[sks.keyservers.net] => 150
[keyserver.searchy.nl] => 141
[key.ip6.li] => 208
[pgp.circl.lu] => 153
[pgp.skewed.de] => 142
[research.nxfifteen.com] => 140
[keyserver.computer42.org] => 149
[gpg.NebrWesleyan.edu] => 143
[kronos.key-servers.de] => 151
[keyserver.stack.nl] => 171
[orion.stueve.us] => 132
[keys.thoma.cc] => 156
[keys.keysigning.org] => 135
[keyserver.cns.vt.edu] => 159
[keys2.kfwebs.net] => 224
[pgp.net.nz] => 127
[pgp.mit.edu] => 250
[nemesis.key-servers.de] => 134
[pgpkeys.eu] => 152
[keyserver.saol.no-ip.com] => 280
[pgpkeys.co.uk] => 360
[keyserver.veloxis.de] => 483
[keyserver.kim-minh.com] => 155
[keys.sugarlabs.org] => 161
[keyserver.reinig-it.de] => 143
[keys.bz] => 141
[keys3.kfwebs.net] => 252
[gpg.spline.inf.fu-berlin.de] => 334
[keys.kfwebs.net] => 421
[keyserver.gingerbear.net] => 0
[keyserver.rainydayz.org] => 0
[keys.riverwillow.net.au] => 143
[keyserver.colliertech.org] => 168
[keys.indymedia.org] => 138
[sd-27509.dedibox.fr] => 151
[keyserver.wetnet.net] => 138
[keyserver.adamas.ai] => 144
[hyperion.key-servers.de] => 155
)
[0] http://kfwebs.com/sks-keyservers-SRV.pdf
[1] http://code.google.com/p/sks-keyservers-pool/source/detail?r=107
[2] http://code.google.com/p/sks-keyservers-pool/source/detail?r=108
[3]
http://code.google.com/p/sks-keyservers-pool/source/browse/trunk/sks-keyservers.net/clients/key_retrieval.php
[4]
http://code.google.com/p/sks-keyservers-pool/source/browse/trunk/sks-keyservers.net/clients/key_retrieval.pl
[5] http://keys2.kfwebs.net
- --
- ----------------------------
Kristian Fiskerstrand
http://www.sumptuouscapital.com
Twitter: @krifisk
- ----------------------------
Corruptissima re publica plurimæ leges
The greater the degeneration of the republic, the more of its laws
- ----------------------------
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- ----------------------------
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