Oui, c'est particulièrement visible sur le test d'intégration de JOSM:
https://josm.openstreetmap.de/jenkins/job/JOSM-Imagery-Integration/lastCompletedBuild/jdk=JDK8/testReport/org.openstreetmap.josm.gui.preferences.imagery/ImageryPreferenceTestIT/testImageryEntryValidity_fr_ign_bdortho_/history/


Le mar. 14 mai 2019 à 15:30, Dominique Rousseau <d...@lee-loo.net> a écrit :

> Le Tue, May 14, 2019 at 02:08:35PM +0200, Stéphane Péneau [
> stephane.pen...@wanadoo.fr] a écrit:
> [...]
> > Je ne pense pas qu'il s'agisse d'une coïncidence. J'ai fait
> > plusieurs fois le test d'utiliser pendant quelques minutes la couche
> > en https, puis celle en http, et il n'y a pas photo... ;-)
>
> Y'a un truc sur les acces https en ipv4 :
>
> $ curl -4 -v --trace-time "https://proxy-ign.openstreetmap.fr/";
> 15:26:38.684249 * Hostname was NOT found in DNS cache
> 15:26:38.697338 *   Trying 77.95.65.41...
> 15:26:39.712568 * Connected to proxy-ign.openstreetmap.fr (77.95.65.41)
> port 443 (#0)
> 15:26:39.713190 * successfully set certificate verify locations:
> 15:26:39.713215 *   CAfile: none
>   CApath: /etc/ssl/certs
> 15:26:39.713334 * SSLv3, TLS handshake, Client hello (1):
> 15:26:42.076523 * SSLv3, TLS handshake, Server hello (2):
> 15:26:42.076607 * SSLv3, TLS handshake, CERT (11):
>
> => 3 secondes de latence dans la negociation ssl
>
>
> Alors qu'en ipv6 :
>
> $ curl -v --trace-time "https://proxy-ign.openstreetmap.fr/";
> 15:27:52.971813 * Hostname was NOT found in DNS cache
> 15:27:52.976103 *   Trying 2a03:9180:0:100::9...
> 15:27:52.993135 * Connected to proxy-ign.openstreetmap.fr
> (2a03:9180:0:100::9) port 443 (#0)
> 15:27:52.993698 * successfully set certificate verify locations:
> 15:27:52.993721 *   CAfile: none
>   CApath: /etc/ssl/certs
> 15:27:52.993840 * SSLv3, TLS handshake, Client hello (1):
> 15:27:53.204720 * SSLv3, TLS handshake, Server hello (2):
> 15:27:53.205826 * SSLv3, TLS handshake, CERT (11):
> 15:27:53.206800 * SSLv3, TLS handshake, Server key exchange
>
> Et en HTTP en ipv4 :
>
> $ curl -4 -v --trace-time "http://proxy-ign.openstreetmap.fr/";
> 15:28:14.001840 * Hostname was NOT found in DNS cache
> 15:28:14.006425 *   Trying 77.95.65.41...
> 15:28:14.029241 * Connected to proxy-ign.openstreetmap.fr (77.95.65.41)
> port 80 (#0)
> 15:28:14.029303 > GET / HTTP/1.1
> 15:28:14.029303 > User-Agent: curl/7.38.0
> 15:28:14.029303 > Host: proxy-ign.openstreetmap.fr
> 15:28:14.029303 > Accept: */*
> 15:28:14.029303 >
> 15:28:14.490772 < HTTP/1.1 302 Moved Temporarily
>
>
> --
> Dominique Rousseau
> d...@lee-loo.net - 06 82 43 12 27
>
> A l'instant où l'esclave décide qu'il ne sera plus esclave,
> ses chaînes tombent.                      -- Mahatma Gandhi
>
> _______________________________________________
> Talk-fr mailing list
> Talk-fr@openstreetmap.org
> https://lists.openstreetmap.org/listinfo/talk-fr
>
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