{"$schema": "https://c3voc.de/schedule/schema.json", "generator": {"name": "pretalx", "version": "2026.1.1"}, "schedule": {"url": "https://pretalx.com/denog-meetup-2023-04/schedule/", "version": "0.5", "base_url": "https://pretalx.com", "conference": {"acronym": "denog-meetup-2023-04", "title": "DENOG MeetUp 2023-04", "start": "2023-06-28", "end": "2023-06-28", "daysCount": 1, "timeslot_duration": "00:05", "time_zone_name": "Europe/Berlin", "colors": {"primary": "#3aa57c"}, "rooms": [{"name": "LAB\u00b3", "slug": "2166-lab3", "guid": "4eecdec0-dfa8-5f90-93ce-3752c79fca2c", "description": null, "capacity": 30}], "tracks": [], "days": [{"index": 1, "date": "2023-06-28", "day_start": "2023-06-28T04:00:00+02:00", "day_end": "2023-06-29T03:59:00+02:00", "rooms": {"LAB\u00b3": [{"guid": "731acc3c-815f-5a92-a757-01d63e8af5cf", "code": "9EMXML", "id": 31871, "logo": null, "date": "2023-06-28T19:00:00+02:00", "start": "19:00", "duration": "00:10", "room": "LAB\u00b3", "slug": "denog-meetup-2023-04-31871-welcome", "url": "https://pretalx.com/denog-meetup-2023-04/talk/9EMXML/", "title": "Welcome", "subtitle": "", "track": null, "type": "Talk", "language": "de", "abstract": "Welcome to our 4rd MeetUp in 2023", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "GJAHNX", "name": "Tim Kleefass", "avatar": "https://pretalx.com/media/avatars/GJAHNX_h98A2JF.webp", "biography": "DENOG Orga", "public_name": "Tim Kleefass", "guid": "b9ef666e-43f2-5948-99aa-da81b298e5e0", "url": "https://pretalx.com/denog-meetup-2023-04/speaker/GJAHNX/"}], "links": [], "feedback_url": "https://pretalx.com/denog-meetup-2023-04/talk/9EMXML/feedback/", "origin_url": "https://pretalx.com/denog-meetup-2023-04/talk/9EMXML/", "attachments": []}, {"guid": "c16b811e-3333-510b-aeef-a12d3c1c8c74", "code": "X8QLVX", "id": 34287, "logo": null, "date": "2023-06-28T19:10:00+02:00", "start": "19:10", "duration": "00:15", "room": "LAB\u00b3", "slug": "denog-meetup-2023-04-34287-whois-freie-netze-sudhessen", "url": "https://pretalx.com/denog-meetup-2023-04/talk/X8QLVX/", "title": "$ whois Freie Netze S\u00fcdhessen", "subtitle": "", "track": null, "type": "Talk", "language": "de", "abstract": "Vor vier Jahren aus der Freifunk-Bewegung heraus gegr\u00fcndet beteiligt sich der Freie Netze S\u00fcdhessen e.V. an der Entwicklung von Open-Source Netzwerktechnologien.\r\n\r\nAls Verein betreiben wir Infrastruktur vom Endger\u00e4t bis ins Rechenzentrum. 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Hierzu modellieren wir das Energiesystem des Kunden in unserer etaONE-Energiemanagement-Plattform als digitalen Zwilling und berechnen die koordinierte Betriebsstrategie der eingesetzten Energiewandler.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "RJSD7R", "name": "Thomas Weber", "avatar": null, "biography": "Nach Abschluss seines Masters im Studiengang \u201eEnergy Science and Engineering\u201c an der Technischen Universit\u00e4t Darmstadt nahm Thomas Weber seine Promotion im Fachbereich Maschinenbau an der ETA-Fabrik auf. Dabei konzentrierte er sich auf die Betriebsoptimierung industrieller W\u00e4rme- und K\u00e4lteversorgungssysteme durch den Einsatz mathematischer Programmierung. Anschlie\u00dfend gr\u00fcndete Thomas Weber Anfang 2020 gemeinsam mit Niklas Panten und Bj\u00f6rn Scheurich die etalytics GmbH. In seiner aktuellen Rolle bei etalytics ist er f\u00fcr die Bereiche Data Science und Vertrieb verantwortlich, wo er sein fundiertes Fachwissen und seine Leidenschaft f\u00fcr innovative L\u00f6sungen einbringt.", "public_name": "Thomas Weber", "guid": "3ebd54aa-ff75-59f2-a6d6-a3c854e85671", "url": "https://pretalx.com/denog-meetup-2023-04/speaker/RJSD7R/"}], "links": [], "feedback_url": "https://pretalx.com/denog-meetup-2023-04/talk/KNEXX8/feedback/", "origin_url": "https://pretalx.com/denog-meetup-2023-04/talk/KNEXX8/", "attachments": []}, {"guid": "01bed1d9-156f-5c87-9b76-ae6cc09413e3", "code": "ZEVYBP", "id": 33518, "logo": null, "date": "2023-06-28T19:40:00+02:00", "start": "19:40", "duration": "00:15", "room": "LAB\u00b3", "slug": "denog-meetup-2023-04-33518-ifnamedhcp-server-interface-names-configured-via-custom-dhcp-option", "url": "https://pretalx.com/denog-meetup-2023-04/talk/ZEVYBP/", "title": "ifnamedhcp - Server Interface Names configured via Custom DHCP Option", "subtitle": "", "track": null, "type": "Talk", "language": "de", "abstract": "After several hardware generations of our servers we had enough of the ever-changing naming schemes of the network interfaces.\r\nThis had troubled us in so many different ways:\r\n* \"Does this NIC count the ports from left to right or right to left!?\" during hardware install.\r\n* Interface names need to be specified in BGP daemon config.\r\n* Prometheus alerting rules specify the interfaces.\r\n* ...\r\n\r\nThe solution is simple, but very effective:\r\n1. During installation of the server OS, we are installing a small utility binary (`ifnamedhcp`).\r\n2. This binary iterates over all Ethernet interfaces, does a DHCP request and waits for the response containing a custom Option that specifies the interface name to configure.\r\n3. 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