{"id":36206,"date":"2019-10-31T22:10:16","date_gmt":"2019-10-31T19:10:16","guid":{"rendered":"https:\/\/prohoster.info\/blog\/bezopasnoe-obnovlenie-zimbra-collaboration-suite\/"},"modified":"2019-10-31T22:10:16","modified_gmt":"2019-10-31T19:10:16","slug":"bezopasnoe-obnovlenie-zimbra-collaboration-suite","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/administrirovanie\/bezopasnoe-obnovlenie-zimbra-collaboration-suite","title":{"rendered":"Zimbra Collaboration Suite'i turvaline v\u00e4rskendamine","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Tundub, et s\u00fcsteemiadministraatorid suhtuvad alati uutesse asjadesse ettevaatlikult. K\u00f5ik, alates uutest serveriplatvormidest kuni tarkvarauuendusteni, v\u00f5etakse vastu ettevaatlikult, kuni ilmneb esmane praktiline kogemus ja positiivne tagasiside kolleegidelt teistelt ettev\u00f5tetelt. See on arusaadav, sest kui vastutad otseselt ettev\u00f5tte t\u00f6\u00f6kindluse ja olulise teabe s\u00e4ilimise eest, hakkad ajapikku ka enda usaldusv\u00e4\u00e4rsuses kahtlema, r\u00e4\u00e4kimata koost\u00f6\u00f6partneritest, alluvatest v\u00f5i tavalistest kasutajatest.<\/p>\n<p>Usaldusv\u00e4\u00e4rsuse puudumine tarkvarauuenduste suhtes tuleneb paljusid ebameeldivaid juhtumeid, kus uute plaastrite installimine on viinud j\u00f5udluse languseni, kasutajaliidese muutusteni, infos\u00fcsteemi rikke v\u00f5i, mis eriti murettekitav, andmete kaotamiseni. Siiski ei saa t\u00e4ielikult ka loobuda uuendustest, muidu v\u00f5ib teie ettev\u00f5tte infrastruktuur k\u00fcberkurjategijate r\u00fcnnakutele avatuks j\u00e4\u00e4da. Piisab, kui meenutada k\u00f5mu tekitanud juhtumit WannaCry viirusest, mil andmed, mis olid salvestatud miljonites mitte viimase versiooniga Windowsi arvutites, said kr\u00fcpteeritud. See intsident mitte ainult ei maksnud t\u00f6\u00f6kohti sadadele s\u00fcsteemiadministraatoritele, vaid n\u00e4itas ka selgelt vajadust arendada v\u00e4lja uus tarkvarauuenduse poliitika ettev\u00f5ttes, mis v\u00f5imaldaks kombineerida turvalisust ja nende installimise kiirus. Vaatame, kuidas saame enne Zimbra 8.8.15 LTS-v\u00e4ljalaske toimumist uuendada Zimbra Collaboration Suite Open-Source Edition, et tagada k\u00f5igi kriitiliselt oluliste andmete s\u00e4ilimine.<\/p>\n<p><img decoding=\"async\" alt=\"Zimbra Collaboration Suite&#039;i turvaline v\u00e4rskendamine\" src=\"\/wp-content\/uploads\/2019\/07\/62678b71dd89c78669193d4b92cd89ad.jpeg\" style=\"display:block;margin: 0 auto;\" \/><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<p>Zimbra Collaboration Suite'i \u00fcks peamisi omadusi on see, et peaaegu k\u00f5ik selle elemendid on duplitseeritavad. Eelk\u00f5ige on v\u00f5imalik lisada LDAP-Masteri p\u00f5hiserverile dubleerivad LDAP-replikaid, millele on h\u00e4daolukordades v\u00f5imalik edasi suunata p\u00f5hilise LDAP-serveri funktsioonid. Samuti on v\u00f5imalik dubleerida Proxy-servereid ja MTA-servereid. Selline dubleerimine v\u00f5imaldab vajadusel v\u00f5tmeelemente infrastruktuurist eemaldada hooldusperioodiks, kaitstes seel\u00e4bi end mitte ainult pikaajalise seiskumise, vaid ka andmete kadumise eest, juhul kui uuendamine ei \u00f5nnestu.<\/p>\n<p>Erinevalt infrastruktuuri muudest elementidest ei toeta Zimbra Collaboration Suite e-posti hoidlate dubleerimist. Isegi juhul, kui teie infrastruktuuris on mitu e-posti hoidlat, v\u00f5ivad iga e-posti kasti andmed asuda vaid \u00fchel e-posti hoidjal. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/server\/dts-dronten\/\"   title=\"serveril\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2493\">serveril<\/a>. Seet\u00f5ttu on \u00fcks peamisi reegleid andmete kaitsmisel uuendamise ajal regulaarselt teostada varukoopiaid postiserverites. Mida uuem on teie varukoopia, seda rohkem andmeid j\u00e4\u00e4b alles v\u00f5imalikel probleemide korral. Siiski on siin n\u00fcanss: tasuta versioonis Zimbra Collaboration Suite ei ole sisseehitatud varundusmehhanismi, seega tuleb varukoopiate tegemiseks kasutada GNU\/Linuxi sisseehitatud vahendeid. Kui teie Zimbra infrastruktuuris t\u00f6\u00f6tab mitu postiserverit ja postiarhiivi suurus on piisavalt suur, v\u00f5ivad need varukoopiad v\u00f5tta v\u00e4ga kaua aega ning tekitada t\u00f5sist koormust kohalikule v\u00f5rgule ja serveritele endile. Samuti, pikaajalise kopeerimise ajal suureneb j\u00e4rsult erinevate etten\u00e4gematute olukordade tekkimise risk. Lisaks, kui teostada selliseid varukoopiaid teenuse peatamata, on oht, et osa faile v\u00f5ib kopeerida valesti, mis toob kaasa teatud andmete kaotamise. <\/p>\n<p>Seet\u00f5ttu, kui peate varundama suurtes kogustes teavet postihoidlatest, on parem kasutada inkrementaalset varundamist, mis v\u00f5imaldab v\u00e4ltida kogu teabe t\u00e4ielikku kopeerimist, varundades ainult need failid, mis on ilmunud v\u00f5i muutunud p\u00e4rast eelneva t\u00e4ieliku varukoopia tegemist. See kiirendab varundamisprotsessi oluliselt ning v\u00f5imaldab kiiremini alustada v\u00e4rskenduste installimist. Zimbra Open-Source Editionis saab inkrementaalset varundamist saavutada Zextras Suite'i kuuluvate Zextras Backup'i moodulit laiendades.<\/p>\n<p>Zextras PowerStore on veel \u00fcks v\u00f5imas t\u00f6\u00f6riist, mis v\u00f5imaldab s\u00fcsteemiadministraatoril andmeid e-posti salvestuses dedupuleerida. See t\u00e4hendab, et k\u00f5ik samad manusd ja korduvad e-kirjad e-posti serveris asendatakse \u00fche algfailiga, samas kui k\u00f5ik kordused muutuvad l\u00e4bipaistvateks tegelikeks linkideks. T\u00e4nu sellele on v\u00f5imalik mitte ainult saavutada m\u00e4rkimisv\u00e4\u00e4rne ruumi kokkuhoid k\u00f5vakettal, vaid ka oluliselt v\u00e4hendada varukoopia suurust, mis v\u00f5imaldab t\u00e4ielikke varukoopiaid teha sageli ja kiiremini.<\/p>\n<p>Kuid peamine funktsioon, mida Zextras PowerStore pakub turvaliseks v\u00e4rskendamiseks, on postkastide \u00fclekandmine postiserverite vahel Zimbra mitme serveri infrastruktuurides. T\u00e4nu sellele funktsioonile saab s\u00fcsteemiadministraator teha postikogudega t\u00e4pselt sama, mida me tegime MTA- ja LDAP-serveritega nende turvaliseks v\u00e4rskendamiseks. N\u00e4iteks kui Zimbra infrastruktuuris on neli postikogu, saab proovida jagada postkastid \u00fchest kolmesse teise ja kui esimene postikogu on t\u00fchi, v\u00f5ib seda andmete turvalisuse p\u00e4rast muretsemata v\u00e4rskendada. Kui s\u00fcsteemiadministraatoril on infrastruktuuris varupostikogu, v\u00f5ib ta kasutada seda ajutise mahutina postkastide jaoks, mis on \u00fcle kantud uuendatavalt postikogult. <\/p>\n<p>Sarnast \u00fclekannet v\u00f5imaldab konsooli k\u00e4sk <b>DoMoveMailbox<\/b>. Ette, et kasutada k\u00f5iki kontosid postikohvrigist muundamiseks, peate esmalt saama nende t\u00e4ieliku nimekirja. Selleks k\u00e4ivitame postiserveris k\u00e4su <b>zmprov sa zimbraMailHost=mailbox.example.com &gt; accounts.txt<\/b>. Selle t\u00e4itmise j\u00e4rel saame faili <b>accounts.txt<\/b> k\u00f5igi meie postikohvrisse salvestatud postkastide loeteluga. P\u00e4rast seda saame seda kohe kasutada kontode \u00fcleviimiseks teisele postikohvrile. See n\u00e4eb v\u00e4lja n\u00e4iteks j\u00e4rgmiselt:<\/p>\n<blockquote><p>zxsuite powerstore doMailboxMove reserve_mailbox.example.com input_file accounts.txt stages data<br \/>\nzxsuite powerstore doMailboxMove reserve_mailbox.example.com input_file accounts.txt stages data,account notifications admin@example.com<\/p><\/blockquote>\n<p>\nK\u00e4sk k\u00e4ivitatakse kaks korda, et esmakordselt kopeerida k\u00f5ik andmed ilma konto \u00fclekandmiseta, ja teist korda, kuna andmete \u00fclekandmine toimub inkrementaalselt, kopeerida k\u00f5ik andmed, mis on ilmunud p\u00e4rast esimest \u00fclekannet, ning seej\u00e4rel \u00fcle kanda ka kontod. Juhime t\u00e4helepanu, et konto \u00fclekandmine on seotud v\u00e4ikese ajavahemikuga e-posti postkasti k\u00e4ttesaamatusega, ning oleks m\u00f5istlik kasutajaid sellest teavitada. Lisaks saadetakse p\u00e4rast teise k\u00e4su t\u00e4itmise l\u00f5puleviimist administraatori e-posti aadressile vastav teade. T\u00e4nu sellele saab administraator v\u00f5imalikult kiiresti j\u00e4tkata e-posti salvestamise uuendamisega. <\/p>\n<p>Kui e-posti salvestamise tarkvara uuendamist teostab SaaS-teenuse pakkuja, on palju m\u00f5istlikum \u00fcleviimist teostada mitte kontode, vaid sellele kuuluvate domeenide kaupa. Selliste eesm\u00e4rkide saavutamiseks piisab, kui veidi kohandada sisestatud k\u00e4sku:<\/p>\n<blockquote><p>zxsuite powerstore doMailboxMove reserve_mailbox.saas.com domains client1.ru, client2.ru, client3.ru stages data<br \/>\nzxsuite powerstore doMailboxMove secureserver.saas.com domains client1.ru, client2.ru, client3.ru stages data,account notifications admin@saas.com<\/p><\/blockquote>\n<p>\nKui kontode ja nende andmete \u00fclekandmine meililihast on valmis, kaotavad algse serveri andmed igasuguse t\u00e4htsuse ning saab alustada meiliserveri v\u00e4rskendamist ilma muretsemata nende s\u00e4ilimise p\u00e4rast.<\/p>\n<p>Neile, kes soovivad v\u00e4hendada seisakuaega postkastide \u00fclekande ajal, sobib ideaalselt t\u00e4iesti erinev stsenaarium k\u00e4su kasutamiseks <b>zxsuite powerstore doMailboxMove<\/b>, mille sisu seisneb selles, et postkastid viiakse kohe uuendatud serveritesse, ilma vahepealsete punkte kasutamata. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/server\/\"   title=\"serverite\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"1340\">serverite<\/a>Teisis\u00f5nu, lisame Zimbra infrastruktuuri uue meililahenduse, mis on juba ajakohastatud viimase versiooniga, ja seej\u00e4rel kanname lihtsalt selle peale konto, mis ei ole v\u00e4rskendatud, ja kordame protseduuri, kuni k\u00f5ik infrastruktuuri serverid on uuendatud.<\/p>\n<p>See meetod v\u00f5imaldab konto \u00fclekannet teostada \u00fchekordselt, v\u00e4hendades seel\u00e4bi aega, mille jooksul postkastid j\u00e4\u00e4vad k\u00e4ttesaamatuks. Lisaks on selleks vajalik vaid \u00fcks t\u00e4iendav postiserver. Siiski tuleks olla ettevaatlik administratiivsete isikute seas, kes k\u00e4itavad postihalduss\u00fcsteeme erineva konfiguratsiooniga serverites. Suure arvu kontode \u00fclekandmine n\u00f5rgemale serverile v\u00f5ib m\u00f5juda negatiivselt teenuse k\u00e4ttesaadavusele ja reageerimiskiirusel, mis v\u00f5ib olla suurte ettev\u00f5tete ja SaaS-teenuse pakkujate jaoks \u00e4\u00e4rmiselt kriitiline.<\/p>\n<p>Seega, t\u00e4nu Zextras Backupile ja Zextras PowerStore'ile, saavad Zimbra s\u00fcsteemiadministraatorid uuendada k\u00f5iki Zimbra infrastruktuuri s\u00f5lmi ilma mingeid riske andmete s\u00e4ilitamise osas.<br \/>\n<br \/>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/zimbra\/blog\/460089\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0422\u0430\u043a \u0443\u0436 \u0441\u043b\u043e\u0436\u0438\u043b\u043e\u0441\u044c, \u0447\u0442\u043e \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u044b\u0435 \u0430\u0434\u043c\u0438\u043d\u0438\u0441\u0442\u0440\u0430\u0442\u043e\u0440\u044b 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\u043f\u043e\u043a\u0430 \u043d\u0435 \u043f\u043e\u044f\u0432\u0438\u0442\u0441\u044f \u043f\u0435\u0440\u0432\u044b\u0439 \u043f\u0440\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u043e\u043f\u044b\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u0438 \u043f\u043e\u0437\u0438\u0442\u0438\u0432\u043d\u044b\u0435 \u043e\u0442\u0437\u044b\u0432\u044b \u043e\u0442 \u043a\u043e\u043b\u043b\u0435\u0433 \u0438\u0437 \u0434\u0440\u0443\u0433\u0438\u0445 \u043f\u0440\u0435\u0434\u043f\u0440\u0438\u044f\u0442\u0438\u0439. \u041e\u043d\u043e \u0438 \u043f\u043e\u043d\u044f\u0442\u043d\u043e, \u0432\u0435\u0434\u044c \u043a\u043e\u0433\u0434\u0430 \u0432 \u0431\u0443\u043a\u0432\u0430\u043b\u044c\u043d\u043e\u043c \u0441\u043c\u044b\u0441\u043b\u0435 \u0433\u043e\u043b\u043e\u0432\u043e\u0439 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":27084,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-36206","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=\"\u0422\u0430\u043a \u0443\u0436 \u0441\u043b\u043e\u0436\u0438\u043b\u043e\u0441\u044c, \u0447\u0442\u043e \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u044b\u0435 \u0430\u0434\u043c\u0438\u043d\u0438\u0441\u0442\u0440\u0430\u0442\u043e\u0440\u044b \u0432\u0441\u0435\u0433\u0434\u0430 \u0441 \u043d\u0435\u0434\u043e\u0432\u0435\u0440\u0438\u0435\u043c \u043e\u0442\u043d\u043e\u0441\u044f\u0442\u0441\u044f \u043a\u043e \u0432\u0441\u0435\u043c\u0443 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