{"id":55032,"date":"2014-06-28T12:41:15","date_gmt":"2014-06-28T10:41:15","guid":{"rendered":"https:\/\/blog.wedos.cz\/?p=55032"},"modified":"2021-01-13T12:42:16","modified_gmt":"2021-01-13T11:42:16","slug":"kovarova-kobyla-chodi-bosa-aneb-stydim-se","status":"publish","type":"post","link":"https:\/\/blog.wedos.com\/cs\/kovarova-kobyla-chodi-bosa-aneb-stydim-se","title":{"rendered":"Kov\u00e1\u0159ova kobyla chod\u00ed bosa aneb styd\u00edm se"},"content":{"rendered":"\n

Vysv\u011btlen\u00ed probl\u00e9mu s DNS z\u00e1znamy ze dne 28. \u010dervna 2014.<\/p>\n\n\n\n\n\n\n\n

Vysv\u011btlen\u00ed situace<\/h3>\n\n\n\n

V\u00e1\u017een\u00ed z\u00e1kazn\u00edci,<\/p>\n\n\n\n

chci se V\u00e1m (j\u00e1, Josef Grill, jako p\u0159edseda p\u0159edstavenstva spole\u010dnosti WEDOS Internet, a.s.) t\u00edmto omluvit za v\u00fdpadek n\u011bkter\u00fdch rozhran\u00ed pro spr\u00e1vu na\u0161ich slu\u017eeb. Nejednalo se o v\u00fdpadek server\u016f, ale o probl\u00e9m zp\u016fsoben\u00fd zm\u011bnou DNS, u jedn\u00e9 z na\u0161ich dom\u00e9n (wedos.net)<\/strong>, kter\u00e1 nen\u00ed aktivn\u011b vyu\u017e\u00edv\u00e1na (nen\u00ed na n\u00ed \u017e\u00e1dn\u00fd web), ale m\u00e1 u n\u011bkter\u00fdch slu\u017eeb na starosti p\u0159esm\u011brov\u00e1n\u00ed FTP \u00fa\u010dt\u016f a mailov\u00fdch \u00fa\u010dt\u016f a p\u0159\u00edstup k PHPMyAdminu. Tato na\u0161e dom\u00e9na nedopat\u0159en\u00edm expirovala a n\u00e1\u0161 registr\u00e1tor, u kter\u00e9ho j\u00ed m\u00e1me registrovanou u n\u00ed zm\u011bnil DNS servery. Okam\u017eit\u011b (b\u011bhem n\u011bkolika minut) technici v\u0161e v noci napravili. D\u016fsledky zm\u011bny DNS se projevily u n\u011bkter\u00fdch poskytovatel\u016f internetu se zpo\u017ed\u011bn\u00edm a t\u00edm jsme zp\u016fsobili n\u011bkter\u00fdm klient\u016fm probl\u00e9my s p\u0159\u00edstupem k v\u00fd\u0161e uveden\u00fdm slu\u017eb\u00e1m.<\/p>\n\n\n\n

Omluva<\/h3>\n\n\n\n

Jedn\u00e1 se o moje osobn\u00ed selh\u00e1n\u00ed<\/strong>, kdy jsem prodlu\u017eov\u00e1n\u00ed firemn\u00edch dom\u00e9n p\u0159evzal od kolegy (do t\u00e9 doby jsme na to byli dva, aby byla jistota) a v „z\u00e1palu“ pr\u00e1ce jsem nutnost prodlou\u017eit dom\u00e9nu p\u0159ehl\u00e9dl. Dom\u00e9na nebyla vedena v na\u0161em automatick\u00e9m syst\u00e9mu<\/strong> shodn\u011b jako z\u00e1kaznick\u00e9 dom\u00e9ny, ale je vedena mimo b\u011b\u017en\u00fd provoz firmy, aby nemohlo doj\u00edt k probl\u00e9m\u016fm a ke zneu\u017eit\u00ed dom\u00e9ny. Zcela chybn\u011b jsem p\u0159edpokl\u00e1dal, \u017ee u dom\u00e9ny je automatick\u00e9 prodlou\u017een\u00ed, kter\u00e9 m\u00e1me v na\u0161em syst\u00e9mu pro na\u0161e z\u00e1kazn\u00edky. Je to moje osobn\u00ed selh\u00e1n\u00ed, za kter\u00e9 se moc a moc omlouv\u00e1m. Bohu\u017eel je to jak ze \u0161patn\u00e9ho filmu<\/strong> a m\u011bl bych z\u0159ejm\u011b chodit hodn\u011b hluboko pod zem\u00ed…<\/p>\n\n\n\n

Celkov\u011b n\u00e1s dnes kontaktovalo cca 250 klient\u016f, kter\u00fdm se zm\u011bna projevila v\u00fdrazn\u011b pozd\u011bji. Posti\u017een\u00fdch klient\u016f bude je\u0161t\u011b o n\u011bco v\u00edce, ale nic jin\u00e9ho, ne\u017e omluvu a kompenzaci nab\u00eddnout nemohu. V p\u0159\u00edpad\u011b individu\u00e1ln\u00ed kompenzace n\u00e1m, pros\u00edm, napi\u0161te p\u0159es kontaktn\u00ed formul\u00e1\u0159<\/a>. Hromadn\u00e9 \u0159e\u0161en\u00ed bude v pond\u011bl\u00ed ve\u010der v administraci.<\/p>\n\n\n\n

Celkov\u011b v\u0161echny servery fungovaly a probl\u00e9m se dotkl mal\u00e9 \u010d\u00e1sti klient\u016f, co\u017e je vid\u011bt i z datov\u00fdch p\u0159enos\u016f z na\u0161\u00ed s\u00edt\u011b, ale to n\u00e1s (m\u011b) samoz\u0159ejm\u011b v\u016fbec neomlouv\u00e1<\/strong>.<\/p>\n\n\n\n

Prob\u00edhaj\u00edc\u00ed zm\u011bny v na\u0161ich procesech<\/h3>\n\n\n\n

Abychom se do budoucna podobn\u00fdm probl\u00e9m\u016fm vyhnuli, rozhodli jsme se v\u0161echny na\u0161e dom\u00e9ny napojit na n\u00e1\u0161 automatick\u00fd syst\u00e9m, aby se pro p\u0159\u00ed\u0161t\u011b vylou\u010dila chyba lidsk\u00e9ho faktoru. Nav\u00edc je hned te\u010f prodlou\u017e\u00edme na maxim\u00e1ln\u00ed mo\u017enou dobu deseti let, proto\u017ee zat\u00edm jsme teprve na za\u010d\u00e1tku a jen tak n\u00e1s n\u011bco neodrad\u00ed pokra\u010dovat. Hodl\u00e1me v\u00e1m i nad\u00e1le p\u0159in\u00e1\u0161et nov\u00e9 slu\u017eby a zlep\u0161ovat ty st\u00e1vaj\u00edc\u00ed.<\/p>\n\n\n\n

Rozhodn\u011b se nehodl\u00e1me skr\u00fdvat za n\u011bjak\u00e9 v\u00fdmluvy a schov\u00e1vat za jak\u00e9koliv chyby n\u011bkoho jin\u00e9ho. <\/strong>Vzhledem k technick\u00fdm komplikac\u00edm v kv\u011btnu se p\u0159ipravujeme nasadit nov\u00fd monitorovac\u00ed syst\u00e9m, kde uvid\u00edte nejen jak\u00e9koliv zav\u00e1h\u00e1n\u00ed na\u0161ich server\u016f p\u0159\u00edmo v administraci, ale tak\u00e9 v\u00e1s automaticky upozorn\u00ed na p\u0159\u00edpadn\u00e9 probl\u00e9my s n\u011bkterou z provozovan\u00fdch slu\u017eeb. O dal\u0161\u00edch \u00faprav\u00e1ch, kter\u00e9 u n\u00e1s prob\u011bhly nebo je\u0161t\u011b prob\u011bhnou, v\u00e1s budeme informovat v n\u00e1sleduj\u00edc\u00edm t\u00fddnu a to jak na na\u0161em webu, tak e-mailem v\u0161em klient\u016fm.<\/strong> Ji\u017e dnes bylo vid\u011bt, \u017ee jsme n\u011bkter\u00e9 v\u011bci zm\u011bnili, proto\u017ee jsme celou dobu komunikovali (v\u010detn\u011b soci\u00e1ln\u00edch s\u00edt\u00ed) a rovn\u011b\u017e jsme m\u011bli po celou dobu zpr\u00e1vu (s n\u00e1vodem na rychlej\u0161\u00ed \u0159e\u0161en\u00ed) p\u0159\u00edmo v administraci a v kontaktech na webu a p\u0159ihla\u0161ovac\u00ed str\u00e1nce na chatu. Jak jsme sl\u00edbili, tak v pond\u011bl\u00ed ve\u010der bude v klientsk\u00e9 administraci informace o kompenzaci za probl\u00e9m z kv\u011btna a p\u0159id\u00e1me je\u0161t\u011b kompenzaci za dne\u0161n\u00ed situaci. Za chyby se plat\u00ed a tak to mus\u00edme ud\u011blat i my.<\/p>\n\n\n\n

Zrovna v minul\u00fdch dnech jsme se rozhodli, \u017ee se staneme registr\u00e1torem nadn\u00e1rodn\u00edch (generick\u00fdch) dom\u00e9n a budeme si jak na\u0161e, tak i va\u0161e dom\u00e9ny spravovat sami.<\/strong>Osvobod\u00edme se t\u00edm od slu\u017eeb t\u0159et\u00edch stran a t\u00edm t\u0159eba nebude v p\u0159\u00edpad\u011b expirace dom\u00e9ny nastaven ciz\u00ed DNS server, ale dom\u00e9ny budeme „dr\u017eet“ pro klienty jak jen to bude mo\u017en\u00e9. Pro v\u00e1s to bude znamenat nejen lep\u0161\u00ed ceny, ale tak\u00e9 v\u00e1m budeme moci daleko v\u00edce pom\u00e1hat jak v ot\u00e1zk\u00e1ch technick\u00fdch, tak i pr\u00e1vn\u00edch. <\/p>\n\n\n\n

N\u011bkolik informac\u00ed k situaci<\/h3>\n\n\n\n

Probl\u00e9m se dotknul n\u011bkolika desetin procenta na\u0161ich klient\u016f. Jedn\u00e1 se o klienty, kte\u0159\u00ed pou\u017e\u00edvaj\u00ed DNS servery poskytovatel\u016f, kte\u0159\u00ed dlouhou dobu cachuj\u00ed DNS z\u00e1znamy. Bohu\u017eel je to (v tomto p\u0159\u00edpad\u011b) velmi nep\u0159\u00edjemn\u00e1 vlastnost DNS z\u00e1znam\u016f, kterou nem\u016f\u017eeme ovlivnit a tak si „poh\u00e1r ho\u0159kosti“ mus\u00edme „vyp\u00edt“ a\u017e do dna a v\u0161e by m\u011blo bez probl\u00e9m\u016f fungovat v\u0161em b\u011bhem dne\u0161n\u00ed noci (24 hodin by m\u011blo b\u00fdt dosta\u010duj\u00edc\u00edch pro znovuna\u010dten\u00ed DNS z\u00e1znam\u016f). O to je situace nep\u0159\u00edjemn\u011bj\u0161\u00ed a o to m\u011b to v\u00edc mrz\u00ed.<\/p>\n\n\n\n

Nejednalo se o techick\u00fd probl\u00e9m a ani o bezpe\u010dnostn\u00ed probl\u00e9m, ale o m\u00e9 osobn\u00ed selh\u00e1n\u00ed.<\/p>\n\n\n\n

Za komplikace se omlouv\u00e1m. Je mi to velmi nep\u0159\u00edjemn\u00e9 a to zejm\u00e9na v situaci, kdy jsme \u0159e\u0161ili n\u00e1\u0161 (historicky) prvn\u00ed technick\u00fd probl\u00e9m minul\u00fd m\u011bs\u00edc. V r\u00e1mci n\u00e1pravy jsme vym\u011bnili UPS, po\u0159\u00edd\u00edme dal\u0161\u00ed motorgener\u00e1tor a upravili jsme dal\u0161\u00ed v\u011bci, ale o tom budu skute\u010dn\u011b ps\u00e1t a\u017e p\u0159\u00ed\u0161t\u011b.

Neust\u00e1le tla\u010d\u00edm na kolegy, aby v\u0161echny servery m\u011bli v pln\u011b funk\u010dn\u00edm stavu, co\u017e se jim da\u0159\u00ed (provozujeme hodn\u011b p\u0159es 300 fyzick\u00fdch server\u016f). Za posledn\u00ed m\u011bs\u00edc jsme nem\u011bli prakticky probl\u00e9my (krom\u011b probl\u00e9m\u016f s jedn\u00edm z mailserver\u016f v minul\u00fdch dnech) stejn\u011b jako 3 roky p\u0159edt\u00edm a d\u011bl\u00e1me maximum, aby bylo v\u0161e stabiln\u00ed. U\u017e i ten mailserver jsme vy\u0159e\u0161ili… A j\u00e1 to takhle pokaz\u00edm…<\/p>\n\n\n\n

Je\u0161t\u011b jednou se velmi omlouv\u00e1m v\u0161em dot\u010den\u00fdm z\u00e1kazn\u00edk\u016fm a koleg\u016fm a dal\u0161\u00edm akcion\u00e1\u0159\u016fm, za zp\u016fsoben\u00e9 komplikace, kter\u00e9 m\u00e1m na sv\u011bdom\u00ed j\u00e1.<\/strong><\/p>\n\n\n\n

Z\u00e1v\u011br<\/h3>\n\n\n\n

Chci v\u00e1s ujistit, \u017ee jste pro n\u00e1s prioritou, a proto jsme k v\u00e1m i naprosto up\u0159imn\u00ed. <\/strong>V pr\u016fb\u011bhu dne kolegov\u00e9 prim\u00e1rn\u011b radili klient\u016fm s probl\u00e9my s p\u0159\u00edstupem, jak situaci nejrychleji vy\u0159e\u0161it. To byla priorita a nyn\u00ed jsme vydali toto prohl\u00e1\u0161en\u00ed.<\/p>\n\n\n\n

V\u011b\u0159\u00edme, \u017ee n\u00e1m i p\u0159es toto zav\u00e1h\u00e1n\u00ed zachov\u00e1te d\u016fv\u011bru.<\/strong> My v\u00e1m za to slibujeme, \u017ee ud\u011bl\u00e1me v\u0161e proto, aby na\u0161e slu\u017eby fungovaly perfektn\u011b.   <\/p>\n\n\n\n

Prosba na z\u00e1v\u011br<\/h4>\n\n\n\n

V p\u0159\u00edpad\u011b, \u017ee budete cht\u00edt diskutovat pod \u010dl\u00e1nkem, tak bych cht\u011bl po\u017e\u00e1dat, abyste uv\u00e1d\u011bli sv\u00e9 pln\u00e9 jm\u00e9no a z\u00e1rove\u0148 i slu\u017ebu, kterou u n\u00e1s m\u00e1te. J\u00e1 se ke sv\u00e9 (neomluviteln\u00e9) chyb\u011b postavil \u010delem a tak o\u010dek\u00e1v\u00e1m, \u017ee nebude n\u00e1sledovat anonymn\u00ed diskuze s p\u0159isp\u011bvovateli z proxyserver\u016f. V\u011b\u0159\u00edm, \u017ee se v\u0161ichni diskutuj\u00edc\u00ed nebudou styd\u011bt za sv\u00e9 weby a za sv\u00e9 jm\u00e9no. <\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Vysv\u011btlen\u00ed probl\u00e9mu s DNS z\u00e1znamy ze dne 28. \u010dervna 2014.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101,3],"tags":[],"class_list":["post-55032","post","type-post","status-publish","format-standard","hentry","category-udalosti","category-spolecnost"],"_links":{"self":[{"href":"https:\/\/blog.wedos.com\/cs\/wp-json\/wp\/v2\/posts\/55032","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.wedos.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.wedos.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.wedos.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.wedos.com\/cs\/wp-json\/wp\/v2\/comments?post=55032"}],"version-history":[{"count":1,"href":"https:\/\/blog.wedos.com\/cs\/wp-json\/wp\/v2\/posts\/55032\/revisions"}],"predecessor-version":[{"id":55035,"href":"https:\/\/blog.wedos.com\/cs\/wp-json\/wp\/v2\/posts\/55032\/revisions\/55035"}],"wp:attachment":[{"href":"https:\/\/blog.wedos.com\/cs\/wp-json\/wp\/v2\/media?parent=55032"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.wedos.com\/cs\/wp-json\/wp\/v2\/categories?post=55032"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.wedos.com\/cs\/wp-json\/wp\/v2\/tags?post=55032"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}