<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
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--></style></head><body lang=EN-US link=blue vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>I discovered this recently. It may assist you in your efforts for highly scalable systems:</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><a href="http://highscalability.com/blog/2013/5/13/the-secret-to-10-million-concurrent-connections-the-kernel-i.html">http://highscalability.com/blog/2013/5/13/the-secret-to-10-million-concurrent-connections-the-kernel-i.html</a></p><p class=MsoNormal><br>In other words, you’re not limited to 16-bits worth of TCP ports on one server.</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>My guess is they use multiple IP addresses (IPv6?) on a single server, but I’m not sure.</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>If anyone does this, let us know how it goes.</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>John</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Sent from <a href="https://go.microsoft.com/fwlink/?LinkId=550986">Mail</a> for Windows 10</p><p class=MsoNormal><o:p> </o:p></p><div style='mso-element:para-border-div;border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal style='border:none;padding:0in'><b>From: </b><a href="mailto:christoph.valentin@gmx.at">Christoph Valentin</a><br><b>Sent: </b>Monday, January 4, 2021 10:55 PM<br><b>To: </b><a href="mailto:contact@wildpeaks.fr">Cecile Muller</a><br><b>Cc: </b><a href="mailto:x3d-public@web3d.org">X3D Graphics public mailing list</a><br><b>Subject: </b>Re: [x3d-public] X3D and VRML for multiuser worlds</p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Hi,</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Isn't MQTT the protocol of the IoT?</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>It needs a broker, doesn't it?</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Just being curious.</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>KR,</p><p class=MsoNormal>Christoph </p><p class=MsoNormal> </p><p class=MsoNormal> </p><p class=MsoNormal> </p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Gesendet: Dienstag, 05. Januar 2021 um 05:25 Uhr</p><p class=MsoNormal>Von: "Cecile Muller" <contact@wildpeaks.fr></p><p class=MsoNormal>An: "X3D Graphics public mailing list" <x3d-public@web3d.org></p><p class=MsoNormal>Betreff: Re: [x3d-public] X3D and VRML for multiuser worlds</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Good morning (and happy new year !),</p><p class=MsoNormal> </p><p class=MsoNormal> </p><p class=MsoNormal>If you want to build something multi-users, nowadays I'd recommend MQTT: it's not specific to 3D,</p><p class=MsoNormal>so you'd still need to create the application on top of it, but you could reach both applications and webapps</p><p class=MsoNormal>with it (it can even run on low-end devices), and it's a proper documented standard.</p><p class=MsoNormal>Mosquitto on a small linux server is enough to get started,</p><p class=MsoNormal>or you could use something like PubNub to not worry about scaling the backend.</p><p class=MsoNormal> </p><p class=MsoNormal> </p><p class=MsoNormal>See you,</p><p class=MsoNormal>Cecile_______________________________________________ x3d-public mailing list x3d-public@web3d.org http://web3d.org/mailman/listinfo/x3d-public_web3d.org</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>_______________________________________________</p><p class=MsoNormal>x3d-public mailing list</p><p class=MsoNormal>x3d-public@web3d.org</p><p class=MsoNormal>http://web3d.org/mailman/listinfo/x3d-public_web3d.org</p><p class=MsoNormal><o:p> </o:p></p></div></body></html>