{"id":40257,"date":"2013-09-28T13:26:00","date_gmt":"2013-09-28T11:26:00","guid":{"rendered":"https:\/\/blog.wedos.cz\/?p=40257"},"modified":"2020-08-27T13:29:44","modified_gmt":"2020-08-27T11:29:44","slug":"jak-nas-ocernuje-udajny-zamestnanec-1","status":"publish","type":"post","link":"https:\/\/blog.wedos.com\/cs\/jak-nas-ocernuje-udajny-zamestnanec-1","title":{"rendered":"Jak n\u00e1s o\u010der\u0148uje \u00fadajn\u00fd zam\u011bstnanec (1)"},"content":{"rendered":"\n

Na Internetu se dnes objevil blog na\u0161eho \u00fadajn\u00e9ho zam\u011bstnance, kter\u00fd se n\u00e1s rozhodl o\u010der\u0148ovat. Jen\u017ee ono to bude trochu jinak, sp\u00ed\u0161e to bude n\u011bjak\u00e1 nov\u00e1 ban\u00e1novina.<\/p>\n\n\n\n\n\n\n\n

Nen\u00ed to tak d\u00e1vno, co existoval web Diamantovyhosting.cz<\/strong>, kter\u00fd se tv\u00e1\u0159il jako nez\u00e1visl\u00fd test webhosting\u016f. Jen\u017ee co se ned\u011blo – \u017e\u00e1dn\u00fd z webhoster\u016f nevych\u00e1zel dob\u0159e a spousta v\u011bc\u00ed tam nesed\u011bla, s jedinou v\u00fdjimkou, kter\u00e1 se t\u00fdkala firmy Ban\u00e1n.cz. A tak nebylo p\u0159ekvapen\u00ed, \u017ee po na\u0161em intenzivn\u00edm p\u00e1tr\u00e1n\u00ed se zjistilo, \u017ee registrace dom\u00e9ny byla uhrazena na po\u0161t\u011b na Ostravsku. Od toho u\u017e nebylo daleko ke zji\u0161t\u011bn\u00ed, kdo za t\u00edm stoj\u00ed. Po konzultaci s jejich pr\u00e1vn\u00edky to rad\u011bji obratem zru\u0161ili.<\/p>\n\n\n\n

Nyn\u00ed se zd\u00e1, \u017ee p\u0159ich\u00e1z\u00ed dal\u0161\u00ed vlna „ban\u00e1novin“. Kdy\u017e n\u00e1m n\u011bkdo nedok\u00e1\u017ee konkurovat slu\u017ebami a cenami, tak to mus\u00ed zkou\u0161et o\u010der\u0148ov\u00e1n\u00edm. Tentokr\u00e1t stopy nevedou na sever Moravy, ale sp\u00ed\u0161e do Prahy. Tak uvid\u00edme.<\/p>\n\n\n\n

N\u00e1\u0161 \u00fadajn\u00fd zam\u011bstnanec si zalo\u017eil str\u00e1nky wxxxxyyyg.com<\/strong> (adresa upravena a screenshot webu je na konci \u010dl\u00e1nku). V prvn\u00edm \u010dl\u00e1nku informuje o tom, jak to m\u00e1me \u0161patn\u011b s nap\u00e1jen\u00edm.<\/p>\n\n\n\n

\u00dadajn\u00fd zam\u011bstnanec si zalo\u017eil dom\u00e9nu i web v USA, aby asi unikl p\u0159\u00edpadn\u00e9 mo\u017enosti dohledat jeho stopy. Dom\u00e9na a webhosting jsou na fale\u0161n\u00e9 jm\u00e9no, kter\u00e9 v \u010cR neexistuje (dle datab\u00e1ze jmen a p\u0159\u00edjmen\u00ed). Na Facebookov \u00e9m profilu jsou fale\u0161n\u00ed p\u0159\u00e1tel\u00e9 z Asie apod. a profilov\u00e1 fotografie je ukradena z webu zahrani\u010dn\u00ed modelov\u00e9 agentury.<\/p>\n\n\n\n

Po p\u0159e\u010dten\u00ed \u010dl\u00e1nku se n\u00e1m ulevilo – nen\u00ed to n\u00e1\u0161 zam\u011bstnanec, kter\u00fd by n\u00e1m cht\u011bl \u0161kodit a vyn\u00e1\u0161et n\u011bjak\u00e9 intern\u00ed informace. Spousta v\u011bc\u00ed tam toti\u017e nesed\u00ed.<\/p>\n\n\n\n

Na jeho blogu se v \u00favodu p\u00ed\u0161e, \u017ee „Od roku 2013 pracuji na technick\u00e9 podpo\u0159e WEDOS<\/em><\/strong>„. Jen\u017ee to m\u00e1 z\u00e1sadn\u00ed vadu. Tento rok nastoupili na podporu jen 3 nov\u00ed lid\u00e9 p\u0159ed 14 dny a ti ur\u010dit\u011b zat\u00edm nemaj\u00ed informace o tom, co u n\u00e1s jak je, ti se teprve za\u0161koluj\u00ed v z\u00e1kladech podpory.<\/p>\n\n\n\n

D\u00e1le na FaceBooku n\u00e1\u0161 „zam\u011bstnanec“ psal: „Nav\u00edc dle \u010cEZ m\u00e1te v budov\u011b jen jeden p\u0159\u00edvod.<\/em><\/strong>“  Z toho tak\u00e9 vypl\u00fdv\u00e1 mnoho:<\/p>\n\n\n\n

  1. Kdyby to byl n\u00e1\u0161 zam\u011bstnanec a bydlel v ji\u017en\u00edch \u010cech\u00e1ch, v\u011bd\u011bl by, \u017ee tento region m\u00e1 pod spr\u00e1vou EON a nikoliv \u010cEZ.<\/li>
  2. To, \u017ee si musel n\u011bkde zji\u0161\u0165ovat kolik m\u00e1me p\u0159ipojek, znamen\u00e1, \u017ee o na\u0161em p\u0159ipojen\u00ed nic nev\u00ed, tak\u017ee to tak\u00e9 nem\u016f\u017ee b\u00fdt n\u00e1\u0161 zam\u011bstnanec.<\/li><\/ol>\n\n\n\n

    Pokud kdokoliv na\u0161im argument\u016fm nev\u011b\u0159\u00ed, r\u00e1di ho u n\u00e1s uv\u00edt\u00e1me a osobn\u011b v\u0161e uk\u00e1\u017eeme.<\/p>\n\n\n\n

    \u017d\u00e1dn\u00fd v\u00fdpadek u WEDOS nehroz\u00ed<\/h2>\n\n\n\n

    V prvn\u00edm \u010dl\u00e1nku na\u0161eho „zam\u011bstnance“ nesed\u00ed n\u00e1sleduj\u00edc\u00ed v\u011bci.<\/p>\n\n\n\n

    WEDOS trafostanici sice nem\u00e1, ale minim\u00e1ln\u011b na Hlubok\u00e9 (a asi i v cel\u00e9 \u010cR ve m\u011bstech) jsou rozvody NN zaokruhovan\u00e9. Ke ka\u017ed\u00e9 p\u0159\u00edpojce NN v na\u0161\u00ed ulici vedou dv\u011b nez\u00e1visl\u00e9 cesty od dvou trafostanic<\/strong>, kter\u00e9 b\u011b\u017e\u00ed paraleln\u011b. Tak\u017ee kdy\u017e jedna trafostanice sho\u0159\u00ed nebo je servisovan\u00e1, p\u0159evezme to bez v\u00fdpadku (nebo mo\u017en\u00e1 s mal\u00fdm v\u00fdpadkem) druh\u00e1. A tak obecn\u011b v\u00fdpadek jak\u00e9koliv jedn\u00e9 trafostanice z\u0159ejm\u011b ve v\u011bt\u0161in\u011b m\u011bst v\u016fbec nevad\u00ed a na Hlubok\u00e9 je tomu taky tak. Mo\u017en\u00e1 to bude hor\u0161\u00ed jen na vesnic\u00edch a samot\u00e1ch, p\u0159\u00edpadn\u011b v pr\u016fmyslov\u00fdch aglomerac\u00edch, kde nejsou voln\u00e9 kapacity p\u0159i v\u00fdpadku jedn\u00e9 trafostanice.<\/p>\n\n\n\n

    T\u00edm jsme si naprosto jisti, proto\u017ee jsme to vid\u011bli a \u0159e\u0161ili p\u0159ed rokem p\u0159i zapojov\u00e1n\u00ed nov\u00e9 NN p\u0159\u00edpojky pro n\u00e1s. R\u00e1di to na\u0161emu „zam\u011bstnanci“ uk\u00e1\u017eeme v rozvodn\u00fdch sk\u0159\u00edn\u00edch EONu p\u0159\u00edmo p\u0159ed na\u0161\u00ed budovou, tam pr\u00e1v\u011b kon\u010d\u00ed jedna smy\u010dka ze dvou trafostanic.<\/p>\n\n\n\n

    Mimochodem, p\u0159\u00edpadn\u00e9 vlastn\u00ed trafostanice m\u00e1me kam d\u00e1t. Kdyby to byl opravdu n\u00e1\u0161 zam\u011bstnanec, mohl by v\u011bd\u011bt o na\u0161ich pl\u00e1nech stavebn\u00edch \u00faprav, jak toho doc\u00edlit. Ale zat\u00edm vlastn\u00ed trafostanici nepot\u0159ebujeme. Bylo by to zbyte\u010dn\u00e9 pl\u00fdtv\u00e1n\u00ed a nic by to nep\u0159ineslo. Snad jen starosti, v\u011bt\u0161\u00ed n\u00e1klady a v\u011bt\u0161\u00ed rizika.<\/p>\n\n\n\n

    K \u00fadajn\u00e9mu probl\u00e9mu s na\u0161\u00edm gener\u00e1torem<\/p>\n\n\n\n

    1. „Zam\u011bstnanec“ tvrd\u00ed, \u017ee testujeme gener\u00e1tor ka\u017ed\u00fd m\u011bs\u00edc. Jen\u017ee to se spletl. Testujeme jej ka\u017ed\u00fd t\u00fdden<\/strong> v konkr\u00e9tn\u00ed den a ve stejnou dobu. Jakto\u017ee to nev\u00ed?<\/li>
    2. Vozen\u00ed nafty m\u00e1me vymy\u0161len\u00e9 a prakticky vyzkou\u0161en\u00e9.<\/li>
    3. V\u011bt\u0161\u00ed nebo druh\u00fd gener\u00e1tor by se ve\u0161el. N\u00e1\u0161 skute\u010dn\u00fd zam\u011bstnanec by toti\u017e v\u011bd\u011bl, \u017ee jsme si ji\u017e d\u0159\u00edve nechali projektovat pot\u0159ebn\u00e9 stavebn\u00ed \u00fapravy pro um\u00edst\u011bn\u00ed dvou velk\u00fdch 700 kVA gener\u00e1tor\u016f, ale zat\u00edm nejsou pot\u0159eba. Op\u011bt by to bylo pl\u00fdtv\u00e1n\u00ed.<\/li><\/ol>\n\n\n\n

      D\u00e1le nen\u00ed pravda, \u017ee porucha UPS znamen\u00e1 v\u00fdpadek nap\u00e1jen\u00ed. A to z n\u00e1sleduj\u00edc\u00edch d\u016fvod\u016f:<\/p>\n\n\n\n

      1. V datacentru m\u00e1me\u00a0doopravdy 2 nez\u00e1visl\u00e9 nap\u00e1jec\u00ed v\u011btv\u011b<\/strong>\u00a0k server\u016fm, ka\u017ed\u00e1 m\u00e1 svou vlastn\u00ed nez\u00e1vislou UPS. Ka\u017ed\u00fd server m\u00e1 dva nap\u00e1jec\u00ed zdroje, jedn\u00edm je zapojen do jedn\u00e9 v\u011btve, druh\u00fdm do druh\u00e9. Tak\u017ee i kdyby se n\u011bkter\u00e1 UPS opravdu rozbila natolik, \u017ee by se p\u0159eru\u0161ilo nap\u00e1jen\u00ed, je zde druh\u00e1 nap\u00e1jec\u00ed v\u011btev a \u017e\u00e1dn\u00fd v\u00fdpadek se nekon\u00e1.<\/li>
      2. Kdy\u017e u\u017e se n\u011bjak\u00e1 UPS opravdu porouch\u00e1 (a neskr\u00fdv\u00e1me, \u017ee se to ji\u017e stalo), nen\u00ed pravda, \u017ee by se p\u0159eru\u0161ilo nap\u00e1jen\u00ed. UPS v poru\u0161e spadne do intern\u00edho by-passu (propoj\u00ed se vstup a v\u00fdstup) a nap\u00e1jen\u00ed t\u00e9 v\u011btv\u011b jede d\u00e1l (jen nen\u00ed do opravy z\u00e1lohovan\u00e9).<\/li>
      3. Na\u0161e nov\u011bj\u0161\u00ed UPS nem\u00e1 s\u00e9riov\u011b zapojen\u00e9 baterie. N\u00e1\u0161 skute\u010dn\u00fd zam\u011bstnanec by v\u011bd\u011bl, \u017ee jsme ji speci\u00e1ln\u011b objedn\u00e1vali a zapojovali\u00a0v konfiguraci se dv\u011bma paraleln\u00edmi v\u011btvemi bateri\u00ed<\/strong>\u00a0(tedy 2 nez\u00e1visl\u00e9 s\u00e9rie). D\u016fkaz:\u00a0fotografie zapojen\u00ed<\/a>\u00a0(vlevo dole vid\u00edte dva p\u0159\u00edvody od bateri\u00ed – dva plusy, dva m\u00ednusy).<\/li>
      4. P\u0159i zapojov\u00e1n\u00ed nov\u00e9 UPS jste v rozporu s tvrzen\u00edm na\u0161eho „zam\u011bstnance“ opravdu provedli\u00a0na jinou v\u011btev<\/strong>. Nepot\u0159ebovali jsme k tomu extern\u00ed by-pass, proto\u017ee jsme prost\u011b tu jednu v\u011btev na n\u011bkolik hodin \u00fapln\u011b vypnuli. Ale to nevadilo, proto\u017ee v\u0161echny servery byly nap\u00e1jeny druhou v\u011btv\u00ed. To tak\u00e9 mus\u00ed rozhodn\u011b n\u00e1\u0161 zam\u011bstnanec v\u011bd\u011bt.<\/li><\/ol>\n\n\n\n

        To v\u0161e by m\u011bl n\u00e1\u0161 skute\u010dn\u00fd zam\u011bstnanec v\u011bd\u011bt, anebo se nebyl posledn\u00ed rok pod\u00edvat v serverovn\u011b.<\/strong><\/p>\n\n\n\n

        Co bude d\u00e1le?<\/h3>\n\n\n\n

        Ji\u017e bylo p\u0159isl\u00edbeno, \u017ee bude kritika na\u0161eho free-coolingu, n\u00e1sledovat bude kritika na\u0161ich router\u016f a nakonec kritika na\u0161ich optick\u00fdch tras. Free-cooling funguje skv\u011ble, \u00fasporn\u011b a spolehliv\u011b. Routery funguj\u00ed bez chyby a zvl\u00e1daj\u00ed mimo\u0159\u00e1dn\u011b siln\u00e9 DDoS \u00fatoky. Optick\u00e9 trasy m\u00e1me nez\u00e1visl\u00e9 a soub\u011bh nemaj\u00ed ani centimetr. Tak to bude zaj\u00edmav\u00e9… Uvid\u00edme, co se je\u0161t\u011b dozv\u00edme.<\/p>\n\n\n\n

        T\u011b\u0161\u00edme se na dal\u0161\u00ed \u010dl\u00e1nky o n\u00e1s. Ale doporu\u010dujeme si zjistit aktu\u00e1ln\u011bj\u0161\u00ed a p\u0159esn\u011bj\u0161\u00ed informace. <\/strong>Mo\u017en\u00e1 bude lep\u0161\u00ed se k n\u00e1m p\u0159ijet nejprve pod\u00edvat.<\/p>\n\n\n\n

        Detaily o na\u0161ich instalac\u00edch a cel\u00e9 fotogalerie najdete na na\u0161em\u00a0webu<\/a>:<\/strong><\/p>\n\n\n\n

        Fotogalerie elektroinstalac\u00ed a datail\u016f na\u0161eho datacentra \u00a0–\u00a0https:\/\/dc.wedos.com<\/a><\/p>\n\n\n\n

        Na co reagujeme?<\/h3>\n\n\n\n

        Screenshot webu na kter\u00fd reagujeme (jen pro zachov\u00e1n\u00ed). P\u0159edpokl\u00e1d\u00e1me, \u017ee tohle je sou\u010d\u00e1st konkuren\u010dn\u00edho boje a tak bude d\u016fkaz d\u0159\u00edve, ne\u017e dojde ke zm\u011bn\u00e1m.<\/p>\n\n\n\n

        \"\"<\/figure>\n\n\n\n

        <\/p>\n","protected":false},"excerpt":{"rendered":"

        Na Internetu se dnes objevil blog na\u0161eho \u00fadajn\u00e9ho zam\u011bstnance, kter\u00fd se n\u00e1s rozhodl o\u010der\u0148ovat. Jen\u017ee ono to bude trochu jinak, sp\u00ed\u0161e to bude n\u011bjak\u00e1 nov\u00e1 ban\u00e1novina.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9,3],"tags":[],"class_list":["post-40257","post","type-post","status-publish","format-standard","hentry","category-technologie","category-spolecnost"],"_links":{"self":[{"href":"https:\/\/blog.wedos.com\/cs\/wp-json\/wp\/v2\/posts\/40257","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=40257"}],"version-history":[{"count":1,"href":"https:\/\/blog.wedos.com\/cs\/wp-json\/wp\/v2\/posts\/40257\/revisions"}],"predecessor-version":[{"id":40271,"href":"https:\/\/blog.wedos.com\/cs\/wp-json\/wp\/v2\/posts\/40257\/revisions\/40271"}],"wp:attachment":[{"href":"https:\/\/blog.wedos.com\/cs\/wp-json\/wp\/v2\/media?parent=40257"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.wedos.com\/cs\/wp-json\/wp\/v2\/categories?post=40257"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.wedos.com\/cs\/wp-json\/wp\/v2\/tags?post=40257"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}