{"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\/ro\/blog\/administrirovanie\/bezopasnoe-obnovlenie-zimbra-collaboration-suite","title":{"rendered":"Actualizare sigur\u0103 a Zimbra Collaboration Suite","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>A\u0219a s-a \u00eent\u00e2mplat c\u0103 administratorii de sisteme sunt \u00eentotdeauna suspicio\u0219i fa\u021b\u0103 de tot ce este nou. Practic, totul, de la noi platforme de server p\u00e2n\u0103 la actualiz\u0103ri de software, este privit cu ne\u00eencredere, exact p\u00e2n\u0103 c\u00e2nd nu apare prima experien\u021b\u0103 practic\u0103 de utilizare \u0219i recenzii pozitive de la colegii din alte companii. Este de \u00een\u021beles, av\u00e2nd \u00een vedere c\u0103, \u00een sens literal, e\u0219ti responsabil pentru func\u021bionarea \u00eentreprinderii \u0219i pentru protec\u021bia informa\u021biilor importante, cu timpul ajungi s\u0103 nu mai ai \u00eencredere nici chiar \u00een tine, dar\u0103mite \u00een parteneri, subordona\u021bi sau utilizatori obi\u0219nui\u021bi.<\/p>\n<p>Ne\u00eencrederea fa\u021b\u0103 de actualiz\u0103rile de software este determinat\u0103 de numeroasele cazuri nepl\u0103cute \u00een care instalarea de patch-uri noi a dus la sc\u0103derea performan\u021bei, modific\u0103ri \u00een interfa\u021ba utilizatorului, e\u0219ecuri ale sistemului informa\u021bional sau, ceea ce este \u0219i mai nepl\u0103cut, pierderea datelor. Totu\u0219i, nu se poate renun\u021ba complet la actualiz\u0103ri, deoarece infrastructura \u00eentreprinderii tale poate deveni vulnerabil\u0103 \u00een fa\u021ba atacurilor cibernetice. E suficient s\u0103 ne amintim de celebrele incidente cu virusul WannaCry, c\u00e2nd datele stocate pe milioane de computere care nu fusese actualizate la ultima versiune de Windows au fost criptate. Acest incident nu doar c\u0103 a costat locuri de munc\u0103 sute de administratori de sisteme, dar a demonstrat \u00een mod clar necesitatea elabor\u0103rii unei noi politici de actualizare a produselor software \u00een cadrul companiei, care s\u0103 permit\u0103 combinarea securit\u0103\u021bii cu rapiditatea instal\u0103rii acestora. Hai s\u0103 ne uit\u0103m, \u00eenainte de lansarea versiunii LTS a Zimbra 8.8.15, la cum putem actualiza Zimbra Collaboration Suite Open-Source Edition pentru a asigura \u00een mod garantat p\u0103strarea tuturor datelor critic esen\u021biale.<\/p>\n<p><img decoding=\"async\" alt=\"Actualizare sigur\u0103 a Zimbra Collaboration Suite\" 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>Una dintre caracteristicile principale ale Zimbra Collaboration Suite este c\u0103 aproape toate componentele sale pot fi duplicate. \u00cen special, pe l\u00e2ng\u0103 serverul principal LDAP-Master, se pot ad\u0103uga replici LDAP-replica, pe care, \u00een caz de necesitate, pot fi transferate func\u021biile serverului LDAP principal. De asemenea, se pot duplica serverele Proxy \u0219i serverele cu MTA. Aceast\u0103 duplicare permite, \u00een caz de nevoie, eliminarea anumitor componente din infrastructur\u0103 pe perioada actualiz\u0103rii \u0219i, astfel, asigur\u0103 protec\u021bia nu doar \u00eempotriva unui timp \u00eendelungat de nefunc\u021bionare, ci \u0219i \u00eempotriva pierderii de date \u00een cazul unei actualiz\u0103ri e\u0219uate.<\/p>\n<p>Spre deosebire de celelalte componente ale infrastructurii, duplicarea stoc\u0103rilor de email \u00een Zimbra Collaboration Suite nu este suportat\u0103. Chiar dac\u0103 \u00een infrastructura dumneavoastr\u0103 exist\u0103 mai multe stoc\u0103ri de email, datele fiec\u0103rui c\u0103su\u021be de email pot fi g\u0103site pe o singur\u0103 stocare de email. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/ro\/server\/dts-dronten\/\"   title=\"server\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2493\">server<\/a>. De aceea, una dintre regulile principale pentru siguran\u021ba datelor \u00een timpul actualiz\u0103rii este rezervarea la timp a informa\u021biilor pe stoc\u0103rile de email. Cu c\u00e2t backup-ul dumneavoastr\u0103 este mai recent, cu at\u00e2t mai multe date vor fi salvate \u00een cazul unei situa\u021bii neprev\u0103zute. Totu\u0219i, exist\u0103 un aspect care const\u0103 \u00een faptul c\u0103 \u00een edi\u021bia gratuit\u0103 a Zimbra Collaboration Suite nu exist\u0103 un mecanism integrat de backup, iar pentru a crea copii de rezerv\u0103 va trebui s\u0103 folosi\u021bi instrumentele integrate GNU\/Linux. \u00cens\u0103 dac\u0103 \u00een infrastructura dumneavoastr\u0103 Zimbra func\u021bioneaz\u0103 mai multe stoc\u0103ri de email, iar dimensiunea arhivei de email este destul de mare, fiecare astfel de rezervare poate dura foarte mult timp \u0219i poate genera o sarcin\u0103 serioas\u0103 asupra re\u021belei locale \u0219i serverelor \u00een sine. \u00cen plus, \u00een timpul copiei de lung\u0103 durat\u0103, riscurile de a \u00eent\u00e2mpina diverse for\u021buri majore cresc brusc. De asemenea, dac\u0103 efectua\u021bi astfel de rezerv\u0103ri f\u0103r\u0103 a opri serviciul, exist\u0103 riscul ca anumite fi\u0219iere s\u0103 fie copiate incorect, ceea ce va duce la pierderea unor date. <\/p>\n<p>De aceea, \u00een cazul \u00een care trebuie s\u0103 rezerva\u021bi volume mari de informa\u021bii din stoc\u0103rile de e-mail, este mai bine s\u0103 utiliza\u021bi backup-ul incremental, care permite evitarea copiei complete a tuturor informa\u021biilor, rezerv\u00e2nd doar fi\u0219ierele care au ap\u0103rut sau au fost modificate dup\u0103 realizarea precedentului backup complet. Aceasta accelereaz\u0103 semnificativ procesul de realizare a backup-urilor, precum \u0219i permite o instalare mai rapid\u0103 a actualiz\u0103rilor. Backup-ul incremental \u00een Zimbra Open-Source Edition poate fi realizat cu ajutorul extensiei modulare Zextras Backup, parte a suitei Zextras.<\/p>\n<p>Un alt instrument puternic, Zextras PowerStore, permite administratorului de sistem s\u0103 deduplice datele de pe stocarea de e-mail. Aceasta \u00eenseamn\u0103 c\u0103 toate ata\u0219amentele identice \u0219i e-mailurile repetitive de pe serverul de e-mail vor fi \u00eenlocuite cu un singur fi\u0219ier surs\u0103, iar toate replicile se vor transforma \u00een linkuri simbolice transparente. Datorit\u0103 acestui lucru, se poate ob\u021bine nu doar o economisire semnificativ\u0103 de spa\u021biu pe hard disk, ci \u0219i o reducere considerabil\u0103 a dimensiunii backup-ului, ceea ce permite realizarea mai frecvent\u0103 a backup-urilor complete.<\/p>\n<p>\u00cens\u0103 cea mai important\u0103 capacitate pe care Zextras PowerStore o poate oferi pentru actualizarea \u00een siguran\u021b\u0103 este transferul c\u0103su\u021belor po\u0219tale \u00eentre serverele de e-mail \u00een infrastructurile multi-server Zimbra. Datorit\u0103 acestei func\u021bionalit\u0103\u021bi, administratorul de sistem poate efectua cu stoc\u0103rile de e-mail exact ceea ce am f\u0103cut cu serverele MTA \u0219i LDAP pentru actualizarea lor \u00een siguran\u021b\u0103. De exemplu, dac\u0103 \u00een infrastructura Zimbra exist\u0103 patru stoc\u0103ri de e-mail, se poate \u00eencerca distribuirea c\u0103su\u021belor po\u0219tale de pe una dintre ele c\u0103tre celelalte trei, iar c\u00e2nd prima stocare de e-mail devine goal\u0103, aceasta poate fi actualizat\u0103 f\u0103r\u0103 \u00eengrijor\u0103ri \u00een privin\u021ba securit\u0103\u021bii datelor. Dac\u0103 administratorul de sistem dispune de o stocare de e-mail de rezerv\u0103, el o poate folosi ca un depozit temporar pentru c\u0103su\u021bele po\u0219tale transferate din stoc\u0103rile de e-mail ce sunt actualizate. <\/p>\n<p>Realizarea unui astfel de transfer este posibil\u0103 prin comanda din consol\u0103 <b>DoMoveMailbox<\/b>. Pentru a o utiliza \u00een scopul transferului tuturor conturilor din depozitul de e-mailuri, mai \u00eent\u00e2i trebuie s\u0103 ob\u021binem lista complet\u0103 a acestora. Pentru a realiza acest lucru, vom executa comanda pe serverul de e-mail <b>zmprov sa zimbraMailHost=mailbox.example.com &gt; accounts.txt<\/b>. Dup\u0103 ce aceasta este executat\u0103, vom ob\u021bine un fi\u0219ier <b>accounts.txt<\/b> cu lista tuturor c\u0103su\u021belor po\u0219tale din depozitul nostru de e-mailuri. Dup\u0103 aceasta, putem s\u0103-l folosim imediat pentru a transfera conturile c\u0103tre un alt depozit de e-mailuri. Ar putea ar\u0103ta astfel:<\/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>\nComanda este executat\u0103 de dou\u0103 ori pentru ca, la prima execu\u021bie, s\u0103 copiem toate datele f\u0103r\u0103 a transfera contul propriu-zis, iar la a doua execu\u021bie, deoarece transferul de date se efectueaz\u0103 incremental, s\u0103 copiem toate datele ap\u0103rute dup\u0103 primul transfer \u0219i, ulterior, s\u0103 transfer\u0103m \u0219i conturile \u00een sine. V\u0103 rug\u0103m s\u0103 re\u021bine\u021bi c\u0103 transferul contului este \u00eenso\u021bit de o mic\u0103 perioad\u0103 de indisponibilitate a c\u0103su\u021bei po\u0219tale, iar este recomandabil s\u0103 informa\u021bi utilizatorii despre acest lucru. \u00cen plus, dup\u0103 terminarea execu\u021biei celei de-a doua comenzi, administratorul va primi un notificare corespunz\u0103toare pe e-mail. Datorit\u0103 acesteia, administratorul poate \u00eencepe rapid actualizarea depozitului de e-mailuri. <\/p>\n<p>\u00cen cazul \u00een care actualizarea software-ului pe depozitul de e-mailuri este efectuat\u0103 de un furnizor SaaS, va fi mult mai ra\u021bional s\u0103 transfer\u0103m datele nu pe conturi, ci pe domeniile care sunt g\u0103zduite acolo. Pentru aceste scopuri, este suficient s\u0103 modific\u0103m pu\u021bin comanda introdus\u0103:<\/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>\nDup\u0103 ce transferul conturilor \u0219i al datelor acestora din depozitul de e-mailuri a fost efectuat, datele de pe serverul original nu mai reprezint\u0103 o importan\u021b\u0103 \u0219i putem \u00eencepe actualizarea serverului de e-mail f\u0103r\u0103 nicio team\u0103 pentru salvarea lor.<\/p>\n<p>Pentru cei care doresc s\u0103 minimizeze timpul de nefunc\u021bionare \u00een timpul transferului c\u0103su\u021belor po\u0219tale, se pot folosi un scenariu complet diferit de utilizare a comenzii <b>zxsuite powerstore doMailboxMove<\/b>, esen\u021ba const\u0103 \u00een faptul c\u0103 migrarea cutiilor po\u0219tale se face imediat pe serverele actualizate, f\u0103r\u0103 a fi nevoie de utilizarea unor intermediare. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/ro\/server\/\"   title=\"servere\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"1340\">servere<\/a>. Cu alte cuvinte, ad\u0103ug\u0103m \u00een infrastructura Zimbra un nou depozit de po\u0219t\u0103 care este deja actualizat la cea mai recent\u0103 versiune, apoi pur \u0219i simplu transfer\u0103m conturile de pe serverul neactualizat conform scenariului deja cunoscut \u0219i repet\u0103m procedura p\u00e2n\u0103 c\u00e2nd toate serverele din infrastructur\u0103 sunt actualizate.<\/p>\n<p>Aceast\u0103 metod\u0103 permite transferul conturilor o singur\u0103 dat\u0103 \u0219i, din acest motiv, reduce timpul \u00een care cutiile po\u0219tale vor r\u0103m\u00e2ne inaccesibile. \u00cen plus, va fi necesar un singur server po\u0219tal suplimentar pentru aceasta. Cu toate acestea, utilizarea sa trebuie f\u0103cut\u0103 cu pruden\u021b\u0103 de c\u0103tre administratorii care desf\u0103\u0219oar\u0103 depozite po\u0219tale pe servere cu configura\u021bii diferite. Asta pentru c\u0103 migrarea unui num\u0103r mare de conturi pe un server mai slab poate afecta negativ disponibilitatea \u0219i reac\u021bia serviciului, ceea ce poate fi destul de critic pentru \u00eentreprinderile mari \u0219i furnizorii de SaaS.<\/p>\n<p>Astfel, datorit\u0103 Zextras Backup \u0219i Zextras PowerStore, administratorul de sistem Zimbra are posibilitatea de a actualiza toate nodurile infrastructurii Zimbra f\u0103r\u0103 niciun risc pentru informa\u021biile stocate pe acestea.<br \/>\n<br \/>Sursa: <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 \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 \u043d\u043e\u0432\u043e\u043c\u0443. \u0411\u0443\u043a\u0432\u0430\u043b\u044c\u043d\u043e \u0432\u0441\u0435, \u043d\u0430\u0447\u0438\u043d\u0430\u044f \u043e\u0442 \u043d\u043e\u0432\u044b\u0445 \u0441\u0435\u0440\u0432\u0435\u0440\u043d\u044b\u0445 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c \u0434\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0439 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f \u0432\u043e\u0441\u043f\u0440\u0438\u043d\u0438\u043c\u0430\u0435\u0442\u0441\u044f \u0441 \u043d\u0430\u0441\u0442\u043e\u0440\u043e\u0436\u0435\u043d\u043d\u043e\u0441\u0442\u044c\u044e, \u0440\u043e\u0432\u043d\u043e \u0434\u043e \u0442\u0435\u0445 \u043f\u043e\u0440, \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 5.0.2.1 - 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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