{"$schema": "https://c3voc.de/schedule/schema.json", "generator": {"name": "pretalx", "version": "2026.1.0"}, "schedule": {"url": "https://pretalx.linuxdays.cz/2020/schedule/", "version": "0.3", "base_url": "https://pretalx.linuxdays.cz", "conference": {"acronym": "2020", "title": "LinuxDays 2020", "start": "2020-10-03", "end": "2020-10-03", "daysCount": 1, "timeslot_duration": "00:05", "time_zone_name": "Europe/Prague", "colors": {"primary": "#3aa57c"}, "rooms": [{"name": "Online room 1", "slug": "10-online-room-1", "guid": "4501a86f-7686-58dd-af96-c0404ac492e8", "description": null, "capacity": null}, {"name": "Online room 2", "slug": "11-online-room-2", "guid": "8fece889-1631-58ac-b4a7-f95825007ba8", "description": null, "capacity": null}], "tracks": [], "days": [{"index": 1, "date": "2020-10-03", "day_start": "2020-10-03T04:00:00+02:00", "day_end": "2020-10-04T03:59:00+02:00", "rooms": {"Online room 1": [{"guid": "fb5fb426-2a1d-5a9c-9041-1a7f9398527a", "code": "A7D8YD", "id": 164, "logo": null, "date": "2020-10-03T09:30:00+02:00", "start": "09:30", "duration": "00:50", "room": "Online room 1", "slug": "2020-164-co-noveho-v-browserech-z-pohledu-bezpecnosti", "url": "https://pretalx.linuxdays.cz/2020/talk/A7D8YD/", "title": "Co nov\u00e9ho v browserech (z pohledu bezpe\u010dnosti)", "subtitle": "", "track": null, "type": "Talk", "language": "cs", "abstract": "O samesite cookies, fetch metadatech, autoupgrade mixed contentu a uvid\u00edme, co do t\u00fd doby je\u0161t\u011b vymysl\u00ed.", "description": "", "recording_license": "", "do_not_record": false, "persons": [{"code": "DDTMQW", "name": "Michal S\u0335\u0312\u0312\u0343\u0310\u035c\u0355\u0359\u0339\u032d\u0323\u0318\u0329\u031e\u0345\u0319\u0321\u0317p\u0336\u035b\u0348\u032b\u0327\u031d\u0327\u0327\u0325\u0332\u035ca\u0335\u031b\u0302\u0308\u0355\u031c\u0355\u0355\u034d\u033c\u033b\u0354\u033b\u0325\u033bc\u0335\u034c\u0301\u0319\u0316\u0318\u0325\u0332\u035c\u0349e\u0338\u033d\u031b\u0301\u0360\u0300\u0310\u0300\u030e\u031b\u034dk\u0335\u030b\u0343\u0314\u0360\u033f\u0313\u0351\u032a\u0327\u033c\u0328\u035a\u034e\u0328", "avatar": "https://pretalx.linuxdays.cz/media/michalspacek-trademark-400x268.jpg", "biography": "", "public_name": "Michal S\u0335\u0312\u0312\u0343\u0310\u035c\u0355\u0359\u0339\u032d\u0323\u0318\u0329\u031e\u0345\u0319\u0321\u0317p\u0336\u035b\u0348\u032b\u0327\u031d\u0327\u0327\u0325\u0332\u035ca\u0335\u031b\u0302\u0308\u0355\u031c\u0355\u0355\u034d\u033c\u033b\u0354\u033b\u0325\u033bc\u0335\u034c\u0301\u0319\u0316\u0318\u0325\u0332\u035c\u0349e\u0338\u033d\u031b\u0301\u0360\u0300\u0310\u0300\u030e\u031b\u034dk\u0335\u030b\u0343\u0314\u0360\u033f\u0313\u0351\u032a\u0327\u033c\u0328\u035a\u034e\u0328", "guid": "9b8348ef-db5e-5879-a969-27a6d26032b5", "url": "https://pretalx.linuxdays.cz/2020/speaker/DDTMQW/"}], "links": [{"title": "komentovan\u00e9 slajdy", "url": "https://www.michalspacek.cz/prednasky/co-noveho-v-browserech-z-pohledu-bezpecnosti-linuxdays", "type": "related"}], "feedback_url": "https://pretalx.linuxdays.cz/2020/talk/A7D8YD/feedback/", "origin_url": "https://pretalx.linuxdays.cz/2020/talk/A7D8YD/", "attachments": []}, {"guid": "82b2f339-a12c-59b5-a755-b77ecff1b538", "code": "SCWYRN", "id": 157, "logo": null, "date": "2020-10-03T10:30:00+02:00", "start": "10:30", "duration": "00:20", "room": "Online room 1", "slug": "2020-157-mam-yubikey-co-dal", "url": "https://pretalx.linuxdays.cz/2020/talk/SCWYRN/", "title": "M\u00e1m YubiKey, co d\u00e1l?", "subtitle": "", "track": null, "type": "Short Talk", "language": "cs", "abstract": "Po\u0159\u00eddil jsem si hardwarov\u00fd token, ale co te\u010f s n\u00edm? K \u010demu v\u0161emu jej m\u016f\u017eu vyu\u017e\u00edt, a jak\u00fdm zp\u016fsobem vlastn\u011b ovlivn\u00ed zabezpe\u010den\u00ed?", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "ZME7CQ", "name": "Michal Halenka", "avatar": "https://pretalx.linuxdays.cz/media/avatars/e24f905193d14fbd3a9d43157bf9f34c_7GBDC4e.jpg", "biography": "", "public_name": "Michal Halenka", "guid": "f4d6373a-0ad5-5682-9530-4eeb8368b46d", "url": "https://pretalx.linuxdays.cz/2020/speaker/ZME7CQ/"}], "links": [], "feedback_url": "https://pretalx.linuxdays.cz/2020/talk/SCWYRN/feedback/", "origin_url": "https://pretalx.linuxdays.cz/2020/talk/SCWYRN/", "attachments": []}, {"guid": "000f70d0-6084-5905-a240-52a26b06f366", "code": "Z7AKY7", "id": 131, "logo": null, "date": "2020-10-03T11:00:00+02:00", "start": "11:00", "duration": "00:50", "room": "Online room 1", "slug": "2020-131-sifrovany-provoz-versus-monitorovaci-systemy", "url": "https://pretalx.linuxdays.cz/2020/talk/Z7AKY7/", "title": "\u0160ifrovan\u00fd provoz versus monitorovac\u00ed syst\u00e9my", "subtitle": "", "track": null, "type": "Talk", "language": "cs", "abstract": "\u0160ifrovat komunikaci je dnes modern\u00ed a d\u00edky sou\u010dasn\u00fdm technologi\u00edm a n\u00e1stroj\u016fm velice snadn\u00e9. P\u0159i pou\u017eit\u00ed zabezpe\u010den\u00fdch protokol\u016f jako je TLS z\u00edsk\u00e1v\u00e1me pocit bezpe\u010d\u00ed a d\u016fv\u011brnosti dat, nebo\u0165 se obecn\u011b v\u00ed, \u017ee \u201cdo \u0161ifrovan\u00e9ho provozu nelze snadno vid\u011bt\u201d. Jak si v\u0161ak s t\u00edmto fenom\u00e9nem dok\u00e1\u017ee poradit monitorovac\u00ed infrastruktura? Opravdu jsme nad \u0161ifrovan\u00fdm provozem \u00fapln\u011b slep\u00ed? Tato prezentace NEBUDE o de\u0161ifrov\u00e1n\u00ed, proxy/MitM ani o zranitelnostech konkr\u00e9tn\u00edch protokol\u016f \u010di aplikac\u00ed. P\u0159esto leckoho mo\u017en\u00e1 p\u0159ekvap\u00ed, jak\u00e9 informace se potenci\u00e1ln\u011b daj\u00ed z \u0161ifrovan\u00e9 komunikace odhadnout.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "USSEAV", "name": "Tom\u00e1\u0161 \u010cejka", "avatar": "https://pretalx.linuxdays.cz/media/avatars/dead967dc5fd98ee70f2a3c5821779a0_7xgE6Jw.jpg", "biography": "Tom\u00e1\u0161 \u010cejka je odborn\u00edkem v oblastech monitorov\u00e1n\u00ed vysokorychlostn\u00edch s\u00edt\u00ed a s\u00ed\u0165ov\u00e9 bezpe\u010dnosti. P\u016fsob\u00ed ve sdru\u017een\u00ed CESNET jako vedouc\u00ed t\u00fdmu v\u00fdzkumn\u00edk\u016f a v\u00fdvoj\u00e1\u0159\u016f, mana\u017eer v\u00fdzkumn\u00fdch projekt\u016f, konzultant, ob\u010das i jako v\u00fdvoj\u00e1\u0159. Mezi dal\u0161\u00ed v\u00fdznamn\u00e9 aktivity pat\u0159\u00ed vzd\u011bl\u00e1v\u00e1n\u00ed a veden\u00ed student\u016f na Fakult\u011b informa\u010dn\u00edch technologi\u00ed \u010cVUT v Praze. Na fakult\u011b se v\u011bnuje v\u00fduce p\u0159edm\u011btu S\u00ed\u0165ov\u00e1 bezpe\u010dnost a veden\u00ed \u0159ady bakal\u00e1\u0159sk\u00fdch a diplomov\u00fdch prac\u00ed student\u016f, kter\u00e9 sdru\u017euje pod vlastn\u00ed Laborato\u0159\u00ed monitorov\u00e1n\u00ed s\u00ed\u0165ov\u00e9ho provozu (https://netmon.fit.cvut.cz/).", "public_name": "Tom\u00e1\u0161 \u010cejka", "guid": "6499e9fb-10d2-5fde-a7de-0101913c9b9d", "url": "https://pretalx.linuxdays.cz/2020/speaker/USSEAV/"}], "links": [], "feedback_url": "https://pretalx.linuxdays.cz/2020/talk/Z7AKY7/feedback/", "origin_url": "https://pretalx.linuxdays.cz/2020/talk/Z7AKY7/", "attachments": []}, {"guid": "81e6b382-ffa4-5f77-8c09-610552ad46ea", "code": "PKPD3A", "id": 156, "logo": null, "date": "2020-10-03T13:00:00+02:00", "start": "13:00", "duration": "00:50", "room": "Online room 1", "slug": "2020-156-merime-spotrebu-elektriny-a-ridime-elektrokotel-ze-sveta-gnu-linuxu", "url": "https://pretalx.linuxdays.cz/2020/talk/PKPD3A/", "title": "M\u011b\u0159\u00edme spot\u0159ebu elekt\u0159iny a \u0159\u00edd\u00edme elektrokotel ze sv\u011bta GNU/Linuxu", "subtitle": "", "track": null, "type": "Talk", "language": "cs", "abstract": "Popov\u00edd\u00e1me si o tom, jak se d\u00e1 m\u011b\u0159it spot\u0159eba elekt\u0159iny pomoc\u00ed sb\u011brnice M-Bus, sb\u00edrat data o stavu elektrokotle  Protherm pomoc\u00ed sb\u011brnice eBus a jak kotel vzd\u00e1len\u011b ovl\u00e1dat (nastavovat teploty, zap\u00ednat/vyp\u00ednat). Probereme podporu t\u011bchto nep\u0159\u00edli\u0161 zn\u00e1m\u00fdch sb\u011brnic v open source sv\u011bt\u011b, zp\u016fsob publikov\u00e1n\u00ed nasb\u00edran\u00fdch dat do \u010dasosb\u011brn\u00fdch datab\u00e1z\u00ed (_time series databases_) a jejich v\u00fdslednou prezentaci u\u017eivateli.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "LWTABH", "name": "Radek Zaj\u00edc", "avatar": "https://pretalx.linuxdays.cz/media/zajdee_pic.jpg", "biography": "Od pokus\u016f napsat vlastn\u00ed opera\u010dn\u00ed syst\u00e9m p\u0159e\u0161el postupn\u011b ke spr\u00e1v\u011b syst\u00e9m\u016f. Po startu ve sv\u011bt\u011b Microsoft Windows p\u0159e\u0161el na temnou stranu s\u00edly a posledn\u00ed roky se star\u00e1 o servery postaven\u00e9 na Linuxu. Tro\u0161ku se zaj\u00edm\u00e1 i o s\u00edt\u011b a protokol IPv6 a nejrad\u0161i v\u00e1s bude m\u00edt, pokud se s n\u00edm budete bavit o tom, \u017ee NAT je tot\u00e9\u017e co firewall.", "public_name": "Radek Zaj\u00edc", "guid": "f3d14f79-a59d-5b46-80b3-25dbf568cf32", "url": "https://pretalx.linuxdays.cz/2020/speaker/LWTABH/"}], "links": [], "feedback_url": "https://pretalx.linuxdays.cz/2020/talk/PKPD3A/feedback/", "origin_url": "https://pretalx.linuxdays.cz/2020/talk/PKPD3A/", "attachments": [{"title": "prezentace", "url": "/media/merime-ridime-linuxdays-2020_8oTQ6MX.pdf", "type": "related"}]}, {"guid": "ffd78612-3f44-5614-94e6-52dcf9acf36a", "code": "N8JNPX", "id": 107, "logo": "https://pretalx.linuxdays.cz/media/2020/images/N8JNPX/opentux-circle_dnMB4Yn.png", "date": "2020-10-03T14:00:00+02:00", "start": "14:00", "duration": "00:20", "room": "Online room 1", "slug": "2020-107-pihome-automatizace-domacnosti-s-openhab-bezici-na-raspberry-pi-arduino", "url": "https://pretalx.linuxdays.cz/2020/talk/N8JNPX/", "title": "PiHome - automatizace dom\u00e1cnosti s OpenHAB b\u011b\u017e\u00edc\u00ed na Raspberry Pi & Arduino", "subtitle": "", "track": null, "type": "Short Talk", "language": "cs", "abstract": "Uk\u00e1zka sv\u00e9pomocn\u00e9 automatizace rodinn\u00e9ho domu pomoc\u00ed syst\u00e9mu OpenHAB. Hardware tvo\u0159\u00ed Raspberry Pi a Arduino komponenty. Komunikace Arduina a Raspberry p\u0159es MQTT. Roz\u0161\u00ed\u0159en\u00ed o Z-Wave a mnoho dal\u0161\u00edch.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "RPVYKT", "name": "Michal Novotn\u00fd", "avatar": null, "biography": "Linux pou\u017e\u00edv\u00e1 jako prim\u00e1rn\u00ed OS od roku 2007. Vystudoval V\u0160CHT Praha v oboru analytick\u00e9 chemie a od roku 2012 pracuje jako aplika\u010dn\u00ed a projektov\u00fd specialista chromatografick\u00fdch laboratorn\u00edch software. M\u00e1 bohat\u00e9 zku\u0161enosti s v\u00fdvojem webov\u00fdch aplikac\u00ed hlavn\u011b v CMS Drupal se znalost\u00ed HTML, CSS, PHP & xSQL. Znalosti prost\u0159ed\u00ed Debian a Windows Server. Jako hobby se v\u011bnuje automatizaci dom\u00e1cnost\u00ed na otev\u0159en\u00e9m software a hardware. Autor projektu FreeLAB (http://freelab.hpst.cz). Blog http://chytrydumsvepomoci.cz", "public_name": "Michal Novotn\u00fd", "guid": "4d4f7336-e5f1-5fda-8c88-2f11cd7981ae", "url": "https://pretalx.linuxdays.cz/2020/speaker/RPVYKT/"}], "links": [], "feedback_url": "https://pretalx.linuxdays.cz/2020/talk/N8JNPX/feedback/", "origin_url": "https://pretalx.linuxdays.cz/2020/talk/N8JNPX/", "attachments": []}, {"guid": "a6816890-44c7-52df-9b72-f3ded5ab11ab", "code": "UDR8NG", "id": 160, "logo": "https://pretalx.linuxdays.cz/media/2020/images/UDR8NG/chiptron_jQTjC59.jpg", "date": "2020-10-03T14:30:00+02:00", "start": "14:30", "duration": "00:20", "room": "Online room 1", "slug": "2020-160-iot-domov-aneb-pozvete-si-zlodeje-domu", "url": "https://pretalx.linuxdays.cz/2020/talk/UDR8NG/", "title": "IoT domov aneb pozv\u011bte si zlod\u011bje dom\u016f", "subtitle": "", "track": null, "type": "Short Talk", "language": "cs", "abstract": "Vyrobili jste si IoT domov? Tak si d\u00e1vejte pozor co a kam pos\u00edl\u00e1te.\r\nV t\u00e9to p\u0159edn\u00e1\u0161ce se spole\u010dn\u011b zamysl\u00edme nad (ne)bezpe\u010dnost\u00ed IoT domov\u016f, kter\u00e9 jsme si sami vyrobili.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "JL7HLE", "name": "Petr \u0160r\u00e1mek", "avatar": "https://pretalx.linuxdays.cz/media/chiptron.jpg", "biography": "CEO, COO, CFO, CMO a CTO v chiptron.cz\r\nNad\u0161enec do bastlen\u00ed a IoT\r\nSpoluzakladatel Cena bastl\u00ed\u0159u a Bastl\u00ed\u0159sk\u00fd kalend\u00e1\u0159", "public_name": "Petr \u0160r\u00e1mek", "guid": "af93ebc1-c743-5eeb-84db-1299849856e3", "url": "https://pretalx.linuxdays.cz/2020/speaker/JL7HLE/"}], "links": [], "feedback_url": "https://pretalx.linuxdays.cz/2020/talk/UDR8NG/feedback/", "origin_url": "https://pretalx.linuxdays.cz/2020/talk/UDR8NG/", "attachments": []}, {"guid": "d56789e3-7ff8-5331-9fa8-6022c232a0ab", "code": "9PEBHT", "id": 136, "logo": null, "date": "2020-10-03T15:30:00+02:00", "start": "15:30", "duration": "00:50", "room": "Online room 1", "slug": "2020-136-proradna-obsluha-chyb", "url": "https://pretalx.linuxdays.cz/2020/talk/9PEBHT/", "title": "Proradn\u00e1 obsluha chyb \ud83d\udde1", "subtitle": "", "track": null, "type": "Talk", "language": "cs", "abstract": "Obsluha chyb je kdy\u017e na n\u00e1s aplikace vyhod\u00ed cel\u00fd z\u00e1sobn\u00edk vol\u00e1n\u00ed a informuje V\u00e1s\r\nt\u00edm, \u017ee soubor z argumentu nen\u00ed k dispozici. Obsluha chyb je tak\u00e9, kdy\u017e knihovna v\r\np\u0159\u00edpad\u011b nezn\u00e1m\u00e9ho stavu zavol\u00e1 exit. To je obsluha chyb i kdy\u017e ne zcela vhodn\u00e1.\r\nPoj\u010fme se zamyslet nad t\u00edm jak chybov\u00e9 stavy \u0159e\u0161it.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "FF7ETG", "name": "Karel Ko\u010d\u00ed", "avatar": "https://pretalx.linuxdays.cz/media/avatars/4676441436b97aa5908fc1497f135941_8Q7Bx3i.jpg", "biography": "Open-source v\u00fdvoj\u00e1\u0159 a nad\u0161enec do v\u0161eho technick\u00e9ho. Aktu\u00e1ln\u011b pracuj\u00edc\u00ed v CZ.NIC na Turrisu.", "public_name": "Karel Ko\u010d\u00ed", "guid": "94369f53-b263-5581-b19b-b883a7071fdb", "url": "https://pretalx.linuxdays.cz/2020/speaker/FF7ETG/"}], "links": [], "feedback_url": "https://pretalx.linuxdays.cz/2020/talk/9PEBHT/feedback/", "origin_url": "https://pretalx.linuxdays.cz/2020/talk/9PEBHT/", "attachments": []}, {"guid": "45a64621-2ce2-577e-8111-f225729d490f", "code": "US8BLV", "id": 165, "logo": null, "date": "2020-10-03T16:30:00+02:00", "start": "16:30", "duration": "00:20", "room": "Online room 1", "slug": "2020-165-wireguard-prakticky", "url": "https://pretalx.linuxdays.cz/2020/talk/US8BLV/", "title": "Wireguard prakticky", "subtitle": "", "track": null, "type": "Short Talk", "language": "cs", "abstract": "Wireguard VPN u\u017e nen\u00ed novinka a funguje velmi dob\u0159e prakticky na v\u0161ech platform\u00e1ch. Spousta lid\u00ed by jej r\u00e1da vyzkou\u0161ela, \u010di j\u00edm nahradila OpenVPN ale st\u00e1le to odkl\u00e1d\u00e1.. C\u00edlem p\u0159edn\u00e1\u0161ky je uk\u00e1zat jak je to snadn\u00e9, a rychl\u00e9!", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "9M3BFU", "name": "Pavel Dostal", "avatar": "https://pretalx.linuxdays.cz/media/avatars/5201683a365b0774d931eed915ec1f7c_DnOl670.jpg", "biography": "P\u0159es den QA Maintenance test developer v SUSE, p\u0159es noc admin v klubu Silicon Hill a kdy\u017e zbyde \u010das tak r\u00e1d l\u00e9t\u00e1m po sv\u011bt\u011b a pozn\u00e1v\u00e1m nov\u00e9 vlaky.", "public_name": "Pavel Dostal", "guid": "982ce761-0177-5e2a-8685-39ad9c48b8a2", "url": "https://pretalx.linuxdays.cz/2020/speaker/9M3BFU/"}], "links": [], "feedback_url": "https://pretalx.linuxdays.cz/2020/talk/US8BLV/feedback/", "origin_url": "https://pretalx.linuxdays.cz/2020/talk/US8BLV/", "attachments": []}, {"guid": "40023852-047e-5ebd-8117-9a09f58890c5", "code": "AQKLYG", "id": 141, "logo": null, "date": "2020-10-03T17:00:00+02:00", "start": "17:00", "duration": "00:10", "room": "Online room 1", "slug": "2020-141-ups-and-downs-of-code-reviews", "url": "https://pretalx.linuxdays.cz/2020/talk/AQKLYG/", "title": "Ups and downs of code reviews", "subtitle": "", "track": null, "type": "Lightning Talk", "language": "en", "abstract": "Code reviews are industry norm we all accept as default. Is it really the best option? Are there alternatives? This just a brief and highly personal view of how it can work and how it can go terribly wrong.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "VKNBTZ", "name": "Michal Hru\u0161eck\u00fd", "avatar": "https://pretalx.linuxdays.cz/media/avatars/VKNBTZ_Ln1rvbe.jpg", "biography": "", "public_name": "Michal Hru\u0161eck\u00fd", "guid": "1edee256-6c0e-5e7a-94b8-048105db5b93", "url": "https://pretalx.linuxdays.cz/2020/speaker/VKNBTZ/"}], "links": [], "feedback_url": "https://pretalx.linuxdays.cz/2020/talk/AQKLYG/feedback/", "origin_url": "https://pretalx.linuxdays.cz/2020/talk/AQKLYG/", "attachments": []}, {"guid": "14d991c3-32b8-5a13-9ec3-79b0dfb0f1ab", "code": "GYCTMR", "id": 166, "logo": null, "date": "2020-10-03T17:10:00+02:00", "start": "17:10", "duration": "00:10", "room": "Online room 1", "slug": "2020-166-kexec-rychly-restart-bez-restartu", "url": "https://pretalx.linuxdays.cz/2020/talk/GYCTMR/", "title": "kexec: rychl\u00fd restart bez restartu", "subtitle": "", "track": null, "type": "Lightning Talk", "language": "cs", "abstract": "Co je to p\u0159\u00edkaz kexec a k \u010demu je dobr\u00fd? Jak si t\u00edmto p\u0159\u00edkazem jednodu\u0161e zrychlit restart serveru o n\u011bkolik minut?", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "X9ZXTX", "name": "Ond\u0159ej Caletka", "avatar": "https://pretalx.linuxdays.cz/media/avatars/2e1eff9a5575fecdbedd6fc76193a645_FSWtses.jpg", "biography": "", "public_name": "Ond\u0159ej Caletka", "guid": "81314713-892d-548e-bf19-47e842a644db", "url": "https://pretalx.linuxdays.cz/2020/speaker/X9ZXTX/"}], "links": [], "feedback_url": "https://pretalx.linuxdays.cz/2020/talk/GYCTMR/feedback/", "origin_url": "https://pretalx.linuxdays.cz/2020/talk/GYCTMR/", "attachments": [{"title": "prezentace", "url": "/media/kexec.pdf", "type": "related"}]}, {"guid": "e7e609dd-0434-5c25-9417-f674cc19d5b3", "code": "HQGECR", "id": 127, "logo": null, "date": "2020-10-03T17:20:00+02:00", "start": "17:20", "duration": "00:10", "room": "Online room 1", "slug": "2020-127-switch-to-nftables-on-centos-7", "url": "https://pretalx.linuxdays.cz/2020/talk/HQGECR/", "title": "Switch to nftables on CentOS 7", "subtitle": "", "track": null, "type": "Lightning Talk", "language": "en", "abstract": "nftables is the default firewall implementation on CentOS/ RHEL 8 and was backported to CentOS 7 as well. I will quickly show how to migrate to nftables on CentOS 7.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "J9FTER", "name": "Adam Kalisz", "avatar": "https://pretalx.linuxdays.cz/media/avatars/AdamKalisz_UN4_9046_sq_zoomed_aFYuGgL.JPG", "biography": "", "public_name": "Adam Kalisz", "guid": "d064a8fa-f0b1-5b67-b5c3-ffdcdc7a96c8", "url": "https://pretalx.linuxdays.cz/2020/speaker/J9FTER/"}], "links": [], "feedback_url": "https://pretalx.linuxdays.cz/2020/talk/HQGECR/feedback/", "origin_url": "https://pretalx.linuxdays.cz/2020/talk/HQGECR/", "attachments": []}], "Online room 2": [{"guid": "268e61c2-62a8-57fb-a518-d9ba373eaeea", "code": "T7QWDA", "id": 125, "logo": null, "date": "2020-10-03T09:30:00+02:00", "start": "09:30", "duration": "00:50", "room": "Online room 2", "slug": "2020-125-nechte-si-testy-napsat-pocitacem", "url": "https://pretalx.linuxdays.cz/2020/talk/T7QWDA/", "title": "Nechte si testy napsat po\u010d\u00edta\u010dem", "subtitle": "", "track": null, "type": "Talk", "language": "cs", "abstract": "V\u0161ichni v\u00edme, jak je testov\u00e1n\u00ed d\u016fle\u017eit\u00e9. P\u0159esto je p\u00ed\u0161eme neradi, nem\u00e1me na n\u011b \u010das a ty, kter\u00e9 nap\u00ed\u0161eme, maj\u00ed obvykle k dokonalosti daleko.\r\n\r\nPod\u00edvejme se na strategie n\u00e1hodn\u00e9ho testov\u00e1n\u00ed, ve kter\u00fdch si u\u0161et\u0159\u00edme \u010das t\u00edm, \u017ee nech\u00e1me po\u010d\u00edta\u010d vym\u00fd\u0161let testy za n\u00e1s a ve kter\u00fdch n\u00e1m k\u00f3d vyzkou\u0161\u00ed v situac\u00edch, kter\u00e9 by n\u00e1s nikdy nenapadly.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "YNHEGQ", "name": "Michal Vaner", "avatar": null, "biography": "Softwarov\u00fd in\u017een\u00fdr v Avastu. Rust evangelista. OpenSource nad\u0161enec. Dlouholet\u00fd u\u017eivatel Linuxu.", "public_name": "Michal Vaner", "guid": "fab1c844-99fc-5ff8-b7e7-3c831374c9a3", "url": "https://pretalx.linuxdays.cz/2020/speaker/YNHEGQ/"}], "links": [], "feedback_url": "https://pretalx.linuxdays.cz/2020/talk/T7QWDA/feedback/", "origin_url": "https://pretalx.linuxdays.cz/2020/talk/T7QWDA/", "attachments": []}, {"guid": "d8ef7438-a63a-5bca-825b-940d96e36d1b", "code": "HL3LKZ", "id": 124, "logo": null, "date": "2020-10-03T10:30:00+02:00", "start": "10:30", "duration": "00:50", "room": "Online room 2", "slug": "2020-124-jak-jsme-psali-vlastni-kernel", "url": "https://pretalx.linuxdays.cz/2020/talk/HL3LKZ/", "title": "Jak jsme psali vlastn\u00ed kernel", "subtitle": "", "track": null, "type": "Talk", "language": "cs", "abstract": "V r\u00e1mci studentsk\u00e9ho softwarov\u00e9ho projektu n\u00e1m vyvstala pot\u0159eba napsat vlastn\u00ed kernel pro platformu AMD64.\r\nDo pr\u00e1ce jsme se vrhli vyzbrojeni teoretick\u00fdmi znalostmi o fungov\u00e1n\u00ed opera\u010dn\u00edch syst\u00e9m\u016f, ale bez p\u0159edchoz\u00edch praktick\u00fdch zku\u0161enost\u00ed z tohoto oboru.\r\nPo n\u011bkolika m\u011bs\u00edc\u00edch pr\u00e1ce jsme opravdu vytvo\u0159ili kernel kter\u00fd je pro na\u0161e pot\u0159eby dosta\u010duj\u00edc\u00ed a r\u00e1di bychom se pod\u011blili o n\u011bkter\u00e9 zku\u0161enosti a zaj\u00edmav\u00e9 post\u0159ehy z na\u0161\u00ed pr\u00e1ce.\r\nV p\u0159edn\u00e1\u0161ce se pod\u00edv\u00e1me na n\u011bkter\u00e9 n\u00e1stroje ze sv\u011bta GNU a jejich mo\u017enosti p\u0159i v\u00fdvoji jednoduch\u00e9ho opera\u010dn\u00edho syst\u00e9mu.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "MKCBAU", "name": "VK", "avatar": null, "biography": "", "public_name": "VK", "guid": "f8b73628-84d3-5d59-9598-024891ec515b", "url": "https://pretalx.linuxdays.cz/2020/speaker/MKCBAU/"}], "links": [], "feedback_url": "https://pretalx.linuxdays.cz/2020/talk/HL3LKZ/feedback/", "origin_url": "https://pretalx.linuxdays.cz/2020/talk/HL3LKZ/", "attachments": []}, {"guid": "4cdda307-53a4-5f21-9658-2bc66cd87285", "code": "TESFJX", "id": 146, "logo": null, "date": "2020-10-03T11:30:00+02:00", "start": "11:30", "duration": "00:20", "room": "Online room 2", "slug": "2020-146-customizing-a-custom-kernel", "url": "https://pretalx.linuxdays.cz/2020/talk/TESFJX/", "title": "Customizing a custom kernel", "subtitle": "", "track": null, "type": "Short Talk", "language": "en", "abstract": "Hacking embedded devices often requires building a custom kernel. We managed to set up a build system for i.MX 8M SoC with Coral edge TPU, LTE modem, and MIPI-CSI2 camera. We will share the journey of pain and victory.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "GLRP3K", "name": "Adam Bla\u017eek", "avatar": null, "biography": "", "public_name": "Adam Bla\u017eek", "guid": "6f9d4bf6-d99b-5a9f-b028-8fc8923bd54b", "url": "https://pretalx.linuxdays.cz/2020/speaker/GLRP3K/"}], "links": [], "feedback_url": "https://pretalx.linuxdays.cz/2020/talk/TESFJX/feedback/", "origin_url": "https://pretalx.linuxdays.cz/2020/talk/TESFJX/", "attachments": []}, {"guid": "896095fd-d80d-53a6-842b-b48e3a6d723f", "code": "MMWPNA", "id": 109, "logo": null, "date": "2020-10-03T13:00:00+02:00", "start": "13:00", "duration": "00:50", "room": "Online room 2", "slug": "2020-109-kubernetes-v-produkci-vse-co-jste-nechteli-vedet", "url": "https://pretalx.linuxdays.cz/2020/talk/MMWPNA/", "title": "Kubernetes v produkci: V\u0161e co jste necht\u011bli v\u011bd\u011bt", "subtitle": "", "track": null, "type": "Talk", "language": "cs", "abstract": "Provozovat kubernetes dnes u\u017e nen\u00ed \u017e\u00e1dn\u00fd velk\u00fd probl\u00e9m. Spravovat ale des\u00edtky clustr\u016f a vsadit na to svoji pov\u011bst u\u017e je  n\u011bco jin\u00e9ho. Kubernetes s\u00e1m o sob\u011b je ale jen mal\u00e1 \u010d\u00e1st cel\u00e9 problematiky v ekosyst\u00e9mu konteinerizovan\u00fdch aplikac\u00ed. Popov\u00edd\u00e1me si o tom jak u n\u00e1s v Livesportu vypadala cesta ke Kubernetu v produkci a co to produkce vlastn\u011b je. Co v\u0161echno jsme museli \u0159e\u0161it, co jsme pou\u017eili na automatizaci, monitoring, logov\u00e1n\u00ed, jak jsme \u0159e\u0161ili autentifikaci a autorizaci, co s bezpe\u010dnost\u00ed a dal\u0161\u00ed lah\u016fdky.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "VYY3Z7", "name": "Robert Voj\u010d\u00edk", "avatar": "https://pretalx.linuxdays.cz/media/avatars/d75f619d20efc36bdde57c8b946ed0a4_axad1J0.jpg", "biography": "Virtualization & Automation Team leader in Livesport.\r\n\r\nBuilding and automating Livesport infrastructure for 11 years.", "public_name": "Robert Voj\u010d\u00edk", "guid": "1ae59ebe-b1a5-5e54-8c10-a646af429ce3", "url": "https://pretalx.linuxdays.cz/2020/speaker/VYY3Z7/"}], "links": [], "feedback_url": "https://pretalx.linuxdays.cz/2020/talk/MMWPNA/feedback/", "origin_url": "https://pretalx.linuxdays.cz/2020/talk/MMWPNA/", "attachments": [{"title": "Prezentace", "url": "/media/Kubernetes_v_Produkci.pptx", "type": "related"}]}, {"guid": "7c5db0a5-d9a9-52ea-b5ba-beacd520f8a1", "code": "DKJVYW", "id": 111, "logo": null, "date": "2020-10-03T14:00:00+02:00", "start": "14:00", "duration": "00:20", "room": "Online room 2", "slug": "2020-111-automatizovana-udrzba-databazovych-serveru", "url": "https://pretalx.linuxdays.cz/2020/talk/DKJVYW/", "title": "Automatizovan\u00e1 \u00fadr\u017eba datab\u00e1zov\u00fdch server\u016f", "subtitle": "", "track": null, "type": "Short Talk", "language": "cs", "abstract": "Mysl\u00edte si, \u017ee automatizace \u00fadr\u017eby datab\u00e1zov\u00fdch server\u016f nen\u00ed dobr\u00fd n\u00e1pad? P\u0159ij\u010fte, zkus\u00edm v\u00e1s p\u0159esv\u011bd\u010dit o opaku. Uk\u00e1\u017eu v\u00e1m, jak jsme postupovali v na\u0161em datab\u00e1zov\u00e9m t\u00fdmu a jak n\u00e1m to \u0161et\u0159\u00ed pr\u00e1ci p\u0159i \u00fadr\u017eb\u011b technologi\u00ed jako jsou MySQL, MongoDB, Elasticsearch \u010di Redis. I automatizace m\u00e1 ale samoz\u0159ejm\u011b sv\u00e1 \u00faskal\u00ed. Plat\u00ed to p\u0159edev\u0161\u00edm v p\u0159\u00edpad\u011b datab\u00e1z\u00ed, tak\u017ee se zam\u011b\u0159\u00edme hlavn\u011b na jejich hospod\u00e1rn\u00fd provoz.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "7LULQN", "name": "Franti\u0161ek Petru\u017e\u00e1lek", "avatar": "https://pretalx.linuxdays.cz/media/avatars/c0a5a83ae8cdcae220be1a508b37ffff_qGwlfWX.jpg", "biography": "", "public_name": "Franti\u0161ek Petru\u017e\u00e1lek", "guid": "aa2ae951-6d16-5364-b316-f647294a964f", "url": "https://pretalx.linuxdays.cz/2020/speaker/7LULQN/"}], "links": [], "feedback_url": "https://pretalx.linuxdays.cz/2020/talk/DKJVYW/feedback/", "origin_url": "https://pretalx.linuxdays.cz/2020/talk/DKJVYW/", "attachments": []}, {"guid": "19c28afa-ae3e-5d86-a86a-98956003005a", "code": "KTDEHF", "id": 118, "logo": null, "date": "2020-10-03T15:30:00+02:00", "start": "15:30", "duration": "00:50", "room": "Online room 2", "slug": "2020-118-esp32-s2-in-ipv6-only-network", "url": "https://pretalx.linuxdays.cz/2020/talk/KTDEHF/", "title": "ESP32/S2 in IPv6 *only* network", "subtitle": "", "track": null, "type": "Talk", "language": "cs", "abstract": "Could we simply turn off IPv4 on ESP32/S2 and what would happen?\r\nThis contribution focuses on embedded IoT devices in IPv6 networks, specifically to microcontrollers with lwIP network stack.\r\nThe article elaborates on the following topics:\r\n* What IPv6 brings to IoT?\r\n* IPv6 modes supported in lwIP (SLAAC, DHCPv6) and how to use them.\r\n* Network interfaces in lwIP and their esp-idf abstraction with regard to IPv6 configuration.\r\n* Comparing resources on ESP32 with IPv4 only, IPv6 only and dual stack configuration.\r\n* Demo: ESP32 running in QEMU with virtual IPv6 only network, connecting to IPv4 broker.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "WCUHGA", "name": "David \u010cerm\u00e1k", "avatar": null, "biography": "Embedded SW developer at Espressif Systems", "public_name": "David \u010cerm\u00e1k", "guid": "568abfe2-0e4d-53ca-8acf-57c183f06eef", "url": "https://pretalx.linuxdays.cz/2020/speaker/WCUHGA/"}], "links": [], "feedback_url": "https://pretalx.linuxdays.cz/2020/talk/KTDEHF/feedback/", "origin_url": "https://pretalx.linuxdays.cz/2020/talk/KTDEHF/", "attachments": []}, {"guid": "2f86f1c6-8e6d-5d6a-b177-d3f5edc0eb51", "code": "X9EZBZ", "id": 150, "logo": null, "date": "2020-10-03T16:30:00+02:00", "start": "16:30", "duration": "00:25", "room": "Online room 2", "slug": "2020-150-command-live-environment-urobte-si-pohodlie-v-prikazovom-riadku", "url": "https://pretalx.linuxdays.cz/2020/talk/X9EZBZ/", "title": "Command Live Environment - urobte si pohodlie v pr\u00edkazovom riadku", "subtitle": "", "track": null, "type": "Workshop", "language": "cs", "abstract": "Command Live Environment (CLE) roz\u0161iruje shell o mno\u017estvo funkci\u00ed\u00ed s\u00favisiacich s pohodl\u00edm a vzh\u013eadom pr\u00edkazov\u00e9ho riadku. Poskytuje farebne zv\u00fdraznen\u00fd prompt s jednoduchou konfigur\u00e1ciou (okam\u017eit\u00fd efekt, bez re\u0161tartu), \u010falej vylep\u0161en\u00e9 aliasy s automatick\u00fdm ukladan\u00edm, roz\u0161\u00edren\u00fa hist\u00f3riu s dopl\u0148uj\u00facimi inform\u00e1ciami o vykonan\u00fdch pr\u00edkazoch a \u0161irok\u00e9 mo\u017enosti vyh\u013ead\u00e1vania v nej. Hlavnou dev\u00edzou je jednoduchos\u0165 v zmysle \"in\u0161taluj raz a pou\u017e\u00edvaj v\u0161ade\" - spustenie prostredia na vzdialenom \u00fa\u010dte cez ssh prebehne okam\u017eite po prihl\u00e1sen\u00ed bez predo\u0161lej in\u0161tal\u00e1cie a s nastaveniami prevzat\u00fdmi z pracovnej stanice.  P\u00f4vodn\u00e9 konfigur\u00e1cie syst\u00e9mov pri tom nie s\u00fa nijako ovplyvnen\u00e9. CLE je kompatibiln\u00e9 s bash aj zsh a je modul\u00e1rne - roz\u0161\u00edrite\u013en\u00e9 o \u010fal\u0161ie funkcie. K dispoz\u00edcii je podrobn\u00e1 dokument\u00e1cia.\r\nNa workshope si nai\u0161talujeme prostredie, vysvetl\u00edme jeho princ\u00edp, pohr\u00e1me sa s promptom, uk\u00e1\u017eeme si ako v re\u00e1le funguje jeho automatick\u00e9 spustenie cez ssh a ko\u013eko cenn\u00fdch inform\u00e1ci\u00ed m\u00f4\u017ee obsahova\u0165 hist\u00f3ria pr\u00edkazov\u00e9ho riadku.", "description": null, "recording_license": "", "do_not_record": false, "persons": [{"code": "LAXR9U", "name": "Michael Arbet", "avatar": "https://pretalx.linuxdays.cz/media/MichaelA.png", "biography": "", "public_name": "Michael Arbet", "guid": "1f3b87cc-5bc1-5ddf-9a12-1074a869f600", "url": "https://pretalx.linuxdays.cz/2020/speaker/LAXR9U/"}], "links": [], "feedback_url": "https://pretalx.linuxdays.cz/2020/talk/X9EZBZ/feedback/", "origin_url": "https://pretalx.linuxdays.cz/2020/talk/X9EZBZ/", "attachments": []}]}}]}}}