{"id":37249,"date":"2019-10-31T22:16:34","date_gmt":"2019-10-31T19:16:34","guid":{"rendered":"https:\/\/prohoster.info\/blog\/ne-shutite-s-null\/"},"modified":"2019-10-31T22:16:34","modified_gmt":"2019-10-31T19:16:34","slug":"ne-shutite-s-null","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/administrirovanie\/ne-shutite-s-null","title":{"rendered":"\u00c4rge naljatage NULL-iga","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Reede v\u00e4\u00e4riline lugu juhtus Ameerika julgeolekueksperdi Joseph Tartaro'ga. Talle tuli m\u00f5te silma paista, tellides mitte lihtsalt isikukoodi, vaid sidudes selle ka oma ametiga. Tema esimeseks m\u00f5tteks oli m\u00e4ngida SEGFAULT'iga v\u00f5i millegi sarnasega. L\u00f5puks valis ta oma autole numbri NULL ja oma naisele VOID. Kas tunnete midagi kahtlast? Selle kohta, kuidas innocuose nalja tulemus tema jaoks v\u00e4lja kukkus, veel \u00fche naljaka Null'i ja \u00f5petlikke vigu andmet\u00fc\u00fcpide kontrollimisel kasutaja sisendil, lugege edasi.<\/p>\n<p><img decoding=\"async\" alt=\"\u00c4rge naljatage NULL-iga\" src=\"\/wp-content\/uploads\/2019\/08\/b1bffbee4c8c58e3201b84a64f0e0808.jpeg\" style=\"display:block;margin: 0 auto;\" \/><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<p>Nii et 2016. aastal sai meie programmeerimisnaljamees oma uued humoorikad numbritahvlid ja kindlasti h\u00f5\u00f5rus ta r\u00f5\u00f5msalt k\u00e4si. Tal oli isegi lootus, et see samm vabastab teda trahvimistest. Mitte et ta oleks v\u00e4ga rikkunud, aga selline idee s\u00fcsteemi murda tundus julgeolekueksperdi jaoks t\u00f5eliselt huvitav.<\/p>\n<p>Probleemid algasid aasta hiljem, kui ta \u00fcritas nummerdamist veebis pikendada. Ja see ajas murelikuks vastava veebilehe.<\/p>\n<p><img decoding=\"async\" alt=\"\u00c4rge naljatage NULL-iga\" src=\"\/wp-content\/uploads\/2019\/08\/d64e3963650f82a14ff31059708ad846.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nS\u00fcsteem pidas sisestatud numbri valev\u00e4\u00e4rtuseks. Programmeerijad on kuskil eksinud ja sisestatud NULL, nagu tekstiv\u00e4\u00e4rtus, n\u00e4ib olevat valesti kontrollitud. Kas see on mitte ranguse probleem? Siiski \u00f5nnestus tal linke kasutades oma numbrit aastaks pikendada, ja kuidagi ta selle peale enam ei m\u00f5elnud.<\/p>\n<p>Kuid nagu selgus, polnud need probleemid kaugeltki ainukesed. Edasi meenutas lugu vana anekdooti:<\/p>\n<blockquote><p>S\u00f5dur \u00fcritab keset p\u00f5ldu kuidagi tanki k\u00fclge j\u00e4rgnenu remondit\u00f6id. \u00c4kki ilmub kuskilt haldjas ja k\u00fcsib:<br \/>\n \u2014 Mida sa teed, s\u00f5jav\u00e4elane?<br \/>\n \u2014 No, ma siin jamajan.<br \/>\n \u2014 Tahad t\u00f5eliselt?<br \/>\n \u2014 (unistavalt) Tahtsin\u2026<br \/>\nHaldjas vehkis oma v\u00f5lupulga\u2026 Ja tankilt kukkus torn \u00e4ra.<\/p><\/blockquote>\n<p>\nNii et, 2018. aasta alguses sai ta t\u00e4iesti v\u00e4\u00e4rilise trahvi summas $35. Ta oleks saanud selle vaidlustada, kuid lihtsam oli maksta, summa polnud suur. Siis viibutas haldjas oma k\u00e4ppa... ja tema postkasti sadasid erinevaid trahve maksmata parkimise, vale koha peal peatumise ja muu sarnase t\u00f5ttu. Toogem siis k\u00fcmneid ja k\u00fcmneid trahve summadega $37, $60, $74, $80... t\u00e4iesti erinevatest kohtadest Californias. Erinevate automudelite t\u00f5ttu. J\u00e4llegi vale t\u00fc\u00fcbi kontrolli t\u00f5ttu seostus NULL v\u00e4\u00e4rtus andmebaasis tema isikuandmetega. Ja iga kord, kui vapustav korrakaitsja unustas trahvi vormistades auto numbri s\u00fcsteemi sisestada, l\u00e4hevad auhinnad meie kangelasele (siinkohal v\u00f5iks ka frontend-arendajaid m\u00f5ningate v\u00f5tmeparameetrite t\u00e4itmise kontrolli puudumise eest vehkida).<\/p>\n<p>Kuskil hetkel sai ta kaks trahvi, mis olid v\u00e4lja kirjutatud samas kohas vaid paar tundi hiljem, t\u00e4iesti erinevatele autodele. T\u00e4iendavaks \u00f5nnetuseks rakendati tema puhul retrospektiivselt vanu trahve, millel ei olnud numbrit. Nii et talle kanti isegi 2014. aasta trahvid, kui tal polnud isegi seda numbrit. Kokku oli tal trahve \u00fcle 12000 dollari.<\/p>\n<p><img decoding=\"async\" alt=\"\u00c4rge naljatage NULL-iga\" src=\"\/wp-content\/uploads\/2019\/08\/258d609a90c61510fc47f07cfcaa4192.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nParkimistrahvidega tegeles erafirma Citation Processing Center. Loomulikult v\u00f5ttis Joseph nendega \u00fchendust ja p\u00fc\u00fcdis olukorda selgitada. Loomulikult, telefoni peal olnud juhataja lahkus pehmelt teemast, palus saata neile tagasi kviitungid, et nad saaksid asjaSelgeks teha. Kuid see t\u00e4hendaks ainulaadse kindla koopia kaotamist, mis t\u00f5endaks trahvi vale v\u00e4ljastamist. Ja hea, et ta ei saatnud. Hiljem m\u00e4rkas ta, et avatud trahvide andmebaasis, mis on veebis kergesti ligip\u00e4\u00e4setav, oli algne auto mudel asendatud tema oma. Veel \u00fcks voor vestlusi juhatajatega, sama palju kasutu.<\/p>\n<p>L\u00f5puks pidi ta p\u00f6\u00f6rduma otse DMV (motoriseeritud s\u00f5idukite registreerimise amet), mis on riiklik asutus, mis tegeleb autotranspordi registreerimise k\u00fcsimustega, ja nende abiga suutis ta summa \u00fcsna kiiresti v\u00e4hendada $6262-le, kuid see ei lahendanud algset probleemi. Uued trahvid j\u00e4tkusid. Originaali kirjutamise kuup\u00e4eva seisuga Wired, oli tasumata kaks trahvi kokku $140. Mida kahjuks, DMV keeldub talle numbrite pikendamisest j\u00e4rgmiseks aastaks, kuni trahvid ei ole tasutud. Veelgi enam, pole t\u00e4iesti selge, kuhu minna ja kellele n\u00f5u t\u00fckkideks anda, et see probleem lahendada. DMV m\u00e4rgib, et nende s\u00fcsteem tuvastab korrektselt tema numbrid ja m\u00f5istab olukorra absurdust. Kuid parkimisega tegelevad kohalikud ametiasutused, millele nad ei saa kuidagi m\u00f5ju avaldada. Nii et lugu v\u00f5ib veel j\u00e4tkuda. Trikiga ei \u00f5nnestunud.<\/p>\n<h2>Mr. Null<\/h2>\n<p>\nVeel \u00f5nne Kristopher Nullile. T\u00f5eliselt halb s\u00fcnnip\u00e4rase nimega. Kui Joseph Tartaro on viimast aastat ainult trahvidega h\u00e4das, siis Kristopher sukeldub pidevalt s\u00fcgavamale kannatuste kuristikku koos digitaalsete tehnoloogiate arenguga.<\/p>\n<p>Eriti tekitab talle muret laialdaselt levinud MVP (minimum viable product, minimaalne eluj\u00f5uline toode) kontseptsioon, mis m\u00f5nel juhul kattub otse edasi, et saada tootmisesse.<\/p>\n<p>Kui j\u00e4tta v\u00e4lja k\u00f5ik koolitasemel naljad tema nime \u00fcle, samuti s\u00fc\u00fcdistused, et ta \u00fcritab sellega t\u00e4helepanu t\u00f5mmata (mis on suurep\u00e4rane viis, kui oled tehnoloogiaalane ajakirjanik nagu Kristopher), tekivad kummalised olukorrad m\u00f5nede veebisaitide ja rakendustega t\u00f6\u00f6tamisel.<\/p>\n<p>Christopheri v\u00e4itel k\u00e4sitleb enamik veebisaite perekonnanime Null korrektselt. Kuigi m\u00f5ned teatavad, et v\u00e4li ei tohi olla t\u00fchi v\u00f5i see on reserveeritud s\u00f5na. Harvadel juhtudel rakendused lihtsalt kukuvad kokku. Huvitav on, et tema t\u00e4helepanekute kohaselt mida suurem on ettev\u00f5te, mis seisab rakenduse v\u00f5i saidi taga, seda rohkem probleeme esineb tema perekonnanimega.<\/p>\n<p>Erinevalt r\u00f5\u00f5mustab teda andmete filtreerimine, mis k\u00f5rvaldatu Null juba salvestatud andmetest. Nii saab ta vahel kirju Media LLC aadressile (samal ajal kui ettev\u00f5tte nimi on Null Media LLC), ja vahel p\u00f6\u00f6rdutakse tema poole lihtsalt kui \u201eHr.\u201d. Tal tuli isegi v\u00e4lja m\u00f5elda m\u00f6\u00f6da minemise man\u00f6\u00f6vrid. N\u00e4iteks panna teine eesnimi v\u00f5i initsiaal samasse v\u00e4lja perekonnanimega v\u00f5i lihtsalt lisada punk tegelikku l\u00f5ppu. Aga m\u00f5nikord osutub s\u00fcsteemi jonn v\u00f5itmatuks.<\/p>\n<p>Nii, Bank of America keeldus t\u00e4ielikult aktsepteerimast tema e-kirja null@nullmedia.com. Nende s\u00fcsteem lihtsalt keeldus nulli vastuv\u00f5tmisest kasutajaosal, isegi tuli luua alias info@ just panga jaoks. Kuid pangasoftware arenes aktiivselt ning paar aastat hiljem... l\u00f5petas nulli vastuv\u00f5tmise isegi domeeninime osana. Mees pidi looma tavalise Gmaili konto, mille nimi sisaldas samuti nulli, kuid mitte kasutajanime alguses.<\/p>\n<p>Kas olete kokku puutunud m\u00f5ne veidra situatsiooniga s\u00fcsteemsete v\u00e4\u00e4rtuste t\u00f6\u00f6tlemisel? Jagage kommentaarides.<\/p>\n<p>Ait\u00e4h, et olete meiega. Kas teile meeldivad meie artiklid? Soovite rohkem huvitavat sisu? Toetage meid tellimuse vormistamise v\u00f5i soovituste jagamisega s\u00f5pradele. <b>30% soodustus Habra kasutajatele meie ainulaadsetelt entry-level serveritelt, mis on loodud just teile:<\/b> <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/company\/ua-hosting\/blog\/347386\/\">K\u00f5ik VPS (KVM) E5-2650 v4 (6 s\u00fcdamikku) 10GB DDR4 240GB SSD 1Gbps alates $20 v\u00f5i kuidas serverit \u00f5igesti jagada?<\/a><\/noindex> (saadaval on RAID1 ja RAID10 variandid, kuni 24 s\u00fcdamikku ja kuni 40GB DDR4).<\/p>\n<p><b>Dell R730xd kaks korda odavam?<\/b> Ainult meie juures <b><noindex><a rel=\"nofollow\" href=\"https:\/\/ua-hosting.company\/serversnl\">2 x Intel TetraDeca-Core Xeon 2x E5-2697v3 2.6GHz 14C 64GB DDR4 4x960GB SSD 1Gbps 100 TB alates $199<\/a><\/noindex> Hollandi turul! <b>Dell R420 \u2014 2x E5-2430 2.2Ghz 6C 128GB DDR3 2x960GB SSD 1Gbps 100TB \u2014 alates $99!<\/b><\/b> Lugege, kuidas <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/company\/ua-hosting\/blog\/329618\/\">Luua ettev\u00f5tte tasemel infrastruktuur Dell R730xd E5-2650 v4 serveritega, mille hind on 9000 eurot, madala hinnaga?<\/a><\/noindex><br \/>\n<br \/>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/ua-hosting\/blog\/463859\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0414\u043e\u0441\u0442\u043e\u0439\u043d\u0430\u044f \u043f\u044f\u0442\u043d\u0438\u0446\u044b \u0438\u0441\u0442\u043e\u0440\u0438\u044f \u043f\u0440\u0438\u043a\u043b\u044e\u0447\u0438\u043b\u0430\u0441\u044c \u0441 \u0430\u043c\u0435\u0440\u0438\u043a\u0430\u043d\u0441\u043a\u0438\u043c \u0438\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u043c \u0432 \u043e\u0431\u043b\u0430\u0441\u0442\u0438 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0414\u0436\u043e\u0437\u0435\u0444\u043e\u043c \u0422\u0430\u0440\u0442\u0430\u0440\u043e (Joseph Tartaro). \u0417\u0430\u0445\u043e\u0442\u0435\u043b\u043e\u0441\u044c \u0435\u043c\u0443 \u0432\u044b\u0434\u0435\u043b\u0438\u0442\u044c\u0441\u044f, \u0437\u0430\u043a\u0430\u0437\u0430\u0432 \u043d\u0435 \u043f\u0440\u043e\u0441\u0442\u043e \u0438\u043d\u0434\u0438\u0432\u0438\u0434\u0443\u0430\u043b\u044c\u043d\u044b\u0439 \u043d\u043e\u043c\u0435\u0440 \u043d\u0430 \u0430\u0432\u0442\u043e, \u043d\u043e \u0438 \u0441\u0432\u044f\u0437\u0430\u0432 \u0435\u0433\u043e \u0441\u043e \u0441\u0432\u043e\u0438\u043c \u0440\u0435\u043c\u0435\u0441\u043b\u043e\u043c. \u041f\u0435\u0440\u0432\u043e\u0439 \u043c\u044b\u0441\u043b\u044c\u044e \u0431\u044b\u043b\u043e \u043f\u043e\u0438\u0433\u0440\u0430\u0442\u044c\u0441\u044f \u0441 SEGFAULT \u0438\u043b\u0438 \u0447\u0435\u043c-\u0442\u043e \u0432\u0440\u043e\u0434\u0435 \u044d\u0442\u043e\u0433\u043e. \u041d\u043e \u0432 \u0438\u0442\u043e\u0433\u0435 \u043e\u043d \u043e\u0441\u0442\u0430\u043d\u043e\u0432\u0438\u043b\u0441\u044f \u043d\u0430 \u043d\u043e\u043c\u0435\u0440\u0435 NULL \u0434\u043b\u044f \u0441\u0432\u043e\u0435\u0439 \u043c\u0430\u0448\u0438\u043d\u044b \u0438 VOID \u0434\u043b\u044f [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":27935,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-37249","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0414\u043e\u0441\u0442\u043e\u0439\u043d\u0430\u044f \u043f\u044f\u0442\u043d\u0438\u0446\u044b \u0438\u0441\u0442\u043e\u0440\u0438\u044f \u043f\u0440\u0438\u043a\u043b\u044e\u0447\u0438\u043b\u0430\u0441\u044c \u0441 \u0430\u043c\u0435\u0440\u0438\u043a\u0430\u043d\u0441\u043a\u0438\u043c \u0438\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u043c \u0432 \u043e\u0431\u043b\u0430\u0441\u0442\u0438 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0414\u0436\u043e\u0437\u0435\u0444\u043e\u043c \u0422\u0430\u0440\u0442\u0430\u0440\u043e (Joseph Tartaro). \u0417\u0430\u0445\u043e\u0442\u0435\u043b\u043e\u0441\u044c \u0435\u043c\u0443 \u0432\u044b\u0434\u0435\u043b\u0438\u0442\u044c\u0441\u044f, \u0437\u0430\u043a\u0430\u0437\u0430\u0432 \u043d\u0435 \u043f\u0440\u043e\u0441\u0442\u043e \u0438\u043d\u0434\u0438\u0432\u0438\u0434\u0443\u0430\u043b\u044c\u043d\u044b\u0439 \u043d\u043e\u043c\u0435\u0440 \u043d\u0430 \u0430\u0432\u0442\u043e, \u043d\u043e \u0438 \u0441\u0432\u044f\u0437\u0430\u0432 \u0435\u0433\u043e \u0441\u043e \u0441\u0432\u043e\u0438\u043c \u0440\u0435\u043c\u0435\u0441\u043b\u043e\u043c. \u041f\u0435\u0440\u0432\u043e\u0439 \u043c\u044b\u0441\u043b\u044c\u044e \u0431\u044b\u043b\u043e \u043f\u043e\u0438\u0433\u0440\u0430\u0442\u044c\u0441\u044f \u0441 SEGFAULT \u0438\u043b\u0438 \u0447\u0435\u043c-\u0442\u043e \u0432\u0440\u043e\u0434\u0435 \u044d\u0442\u043e\u0433\u043e. \u041d\u043e \u0432 \u0438\u0442\u043e\u0433\u0435 \u043e\u043d \u043e\u0441\u0442\u0430\u043d\u043e\u0432\u0438\u043b\u0441\u044f \u043d\u0430 \u043d\u043e\u043c\u0435\u0440\u0435 NULL \u0434\u043b\u044f \u0441\u0432\u043e\u0435\u0439 \u043c\u0430\u0448\u0438\u043d\u044b \u0438 VOID \u0434\u043b\u044f\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/et\/blog\/administrirovanie\/ne-shutite-s-null\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" 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