{"id":110697,"date":"2023-10-09T15:10:16","date_gmt":"2023-10-09T13:10:16","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/novaya-versiya-pop3-i-imap4-servera-dovecot-2-3-21"},"modified":"2023-10-09T15:10:16","modified_gmt":"2023-10-09T13:10:16","slug":"novaya-versiya-pop3-i-imap4-servera-dovecot-2-3-21","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/novaya-versiya-pop3-i-imap4-servera-dovecot-2-3-21","title":{"rendered":"\u00daj verzi\u00f3 a Dovecot 2.3.21 POP3 \u00e9s IMAP4 szerverb\u0151l","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Megjelent a Dovecot 2.3.21 \u00faj verzi\u00f3ja, amely egy t\u00f6bbplatformos, nagy teljes\u00edtm\u00e9ny\u0171 POP3\/IMAP4 szerver, t\u00e1mogatva a POP3 \u00e9s IMAP4rev1 protokollokat n\u00e9pszer\u0171 kiterjeszt\u00e9sekkel, mint p\u00e9ld\u00e1ul a SORT, THREAD \u00e9s IDLE, valamint hiteles\u00edt\u00e9si \u00e9s titkos\u00edt\u00e1si mechanizmusokkal (SASL, TLS, SCRAM). A Dovecot teljes kompatibilit\u00e1st biztos\u00edt a klasszikus mbox \u00e9s Maildir form\u00e1tumokkal, k\u00fcls\u0151 indexeket alkalmazva a teljes\u00edtm\u00e9ny n\u00f6vel\u00e9s\u00e9re. A funkcionalit\u00e1s b\u0151v\u00edt\u00e9se \u00e9rdek\u00e9ben pluginok is haszn\u00e1lhat\u00f3k (p\u00e9ld\u00e1ul a kv\u00f3t\u00e1k \u00e9s ACL-ek pluginok r\u00e9v\u00e9n val\u00f3sulnak meg). A projekt k\u00f3dja LGPL \u00e9s MIT licencek alatt terjeszthet\u0151.      <\/p>\n<p>F\u0151bb v\u00e1ltoz\u00e1sok:  <\/p>\n<ul>\n<li class=\"l\"> lib-oauth2: A JWT-Tokenek ellen\u0151rz\u00e9se enged\u00e9lyezett, ha hi\u00e1nyzik a &#171;typ&#187; mez\u0151. A &#171;typ&#187; mez\u0151t egyes kulcskiad\u00f3k kihagyj\u00e1k a hely megtakar\u00edt\u00e1sa \u00e9rdek\u00e9ben, k\u00fcl\u00f6n\u00f6sen a kubernetes eset\u00e9ben. Most m\u00e1r a &#171;typ&#187; hi\u00e1nya is megengedett, de ha jelen van, akkor mindenk\u00e9ppen &#171;jwt&#187; legyen.\n<li class=\"l\"> auth: A passdb \u00e9s userdb &#171;Auth&#187; v\u00e1lasza tartalmazhatja az &#171;event_&lt;name&gt;=value&#187; \u00e9rt\u00e9ket, amely hozz\u00e1 lesz adva a bejelentkez\u00e9si esem\u00e9nyhez \u00e9s a postai felhaszn\u00e1l\u00f3i esem\u00e9nyhez megfelel\u0151en.\n<li class=\"l\"> lib-master: A folyamat fejl\u00e9c\u00e9t k\u00fcl\u00f6nb\u00f6z\u0151 inicializ\u00e1l\u00e1si szakaszokban \u00e1ll\u00edtja be, hogy tiszt\u00e1zza, mit v\u00e1r el a folyamat.\n<li class=\"l\"> lib-storage: A mail_temp_scan_interval most m\u00e1r 0&#8230;30%-kal megn\u0151 a felhaszn\u00e1l\u00f3n\u00e9v hash alapj\u00e1n, hogy cs\u00f6kkentse a terhel\u00e9s ugr\u00e1s\u00e1nak val\u00f3sz\u00edn\u0171s\u00e9g\u00e9t.\n<li class=\"l\"> lib-storage: A ideiglenes f\u00e1jlok szkennel\u00e9se a postafi\u00f3k megnyit\u00e1s\u00e1nak pillanat\u00e1r\u00f3l a bez\u00e1r\u00e1s\u00e1nak pillanat\u00e1ra ker\u00fclt, hogy cs\u00f6kkentse a felhaszn\u00e1l\u00f3k \u00e1ltal \u00e9szlelt k\u00e9sleltet\u00e9st.\n<li class=\"l\"> stats: Ha a metrik\u00e1ban mez\u0151k vannak, akkor ezeket a mez\u0151ket sz\u00e1ml\u00e1l\u00f3kk\u00e9nt export\u00e1lj\u00e1k prometheus sz\u00e1m\u00e1ra az exposition form\u00e1tumban.\n<li class=\"l\"> &#171;*-login&#187;: A folyamatok le\u00e1llhattak az SSL-kapcsolat gondatlan megszak\u00edt\u00e1sa miatt.    &#8212; acl: A b\u0151v\u00edtm\u00e9ny bet\u00f6lt\u00e9sekor a &#092;&#092;HasChildren \u00e9s &#092;&#092;HasNoChildren flag-ek hib\u00e1san lettek kisz\u00e1m\u00edtva az olyan postal\u00e1d\u00e1k eset\u00e9ben, amelyek nev\u00e9ben &#8216;*&#8217; \u00e9s &#8216;%&#8217; szerepelt.\n<li class=\"l\"> auth: A PostgreSQL adatb\u00e1zisra val\u00f3 csatlakoz\u00e1s sikertelens\u00e9ge eset\u00e9n indul\u00e1skor hiba l\u00e9pett fel.\n<li class=\"l\"> auth: Bejelentkez\u00e9skor, ha hib\u00e1s jelsz\u00f3t haszn\u00e1ltak (p\u00e9ld\u00e1ul, ismeretlen s\u00e9ma eset\u00e9n) a passdb-ben a &#171;bels\u0151 hiba&#187; helyett a &#171;jelsz\u00f3 elt\u00e9r\u00e9s&#187; hiba\u00fczenet ker\u00fclt kiad\u00e1sra.\n<li class=\"l\"> auth: Az XOAUTH2 \u00e9s OAUTHBEARER mechanizmusok nem adtak vissza protokollspecifikus hiba\u00fczenetet semmilyen hiba eset\u00e9n. Ez k\u00fcl\u00f6n\u00f6sen zavar\u00f3 volt az OIDC \u00e9szlel\u00e9sekor.\n<li class=\"l\"> dbox: Ha a last_temp_file_scan mez\u0151 nem volt be\u00e1ll\u00edtva (k\u00fcl\u00f6n\u00f6sen dsync-migr\u00e1ci\u00f3 ut\u00e1n), akkor a k\u00f6vetkez\u0151 alkalommal, amikor a levelez\u0151dobozt megnyitott\u00e1k, mindig elindult a ideiglenes f\u00e1jlok szkennel\u00e9se. Ez terhel\u00e9sn\u00f6veked\u00e9st okozhatott a migr\u00e1ci\u00f3k ut\u00e1n. Jav\u00edtva a levelez\u0151dobozt jelz\u0151 mappa atime-j\u00e9nek haszn\u00e1lat\u00e1val, ha a mez\u0151 hi\u00e1nyzik, ami \u00e1ltal\u00e1ban a szkennel\u00e9s idej\u00e9t a j\u00f6v\u0151be tolja.\n<li class=\"l\"> dict-redis: A tranzakci\u00f3k visszavon\u00e1sakor hiba t\u00f6rt\u00e9nt.\n<li class=\"l\">  dsync: Amikor a levelez\u0151dobozt t\u00f6r\u00f6lt\u00e9k a t\u00e1voli v\u00e9g\u00e9n, \u00e9s a hierarchikus szint elv\u00e1laszt\u00f3i nem egyeztek, v\u00e9gtelen ciklus alakult ki, amely mem\u00f3riakimer\u00fcl\u00e9shez vezetett.\n<li class=\"l\"> dsync: Az inkrement\u00e1lis dsync nem hajtotta v\u00e9gre a &#8216;%&#8217; karakterrel v\u00e9gz\u0151d\u0151 mappanevek eset\u00e9n, ha nem volt be\u00e1ll\u00edtva a BROKENCHAR \u00e9rt\u00e9k. Emellett a &#8216;%&#8217; karakter mappanevek m\u00e1s helyeken minden inkrement\u00e1lis dsync-t k\u00f6vet\u0151en felesleges \u00e1tnevez\u00e9st okoztak ideiglenes n\u00e9vre, majd vissza. Visszaes\u00e9s v2.3.19.\n<li class=\"l\">  imap-hibernate: Ha az IMAP-kliens felold\u00e1sakor id\u0151t\u00fall\u00e9p\u00e9s t\u00f6rt\u00e9nt a &#171;(version received)&#187; \u00fczenettel, akkor k\u00e9s\u0151bb a felold\u00e1s sikeresen befejez\u0151dhetett \u00e9s folytathatta a norm\u00e1l m\u0171k\u00f6d\u00e9st. Ez z\u0171rzavart okozott, mivel az imap-hibernate m\u00e1r r\u00f6gz\u00edtette, hogy a kliens lev\u00e1laszt\u00f3dott. Ezt elker\u00fclhetj\u00fck azzal, hogy a kapcsolat a hibern\u00e1l\u00e1s befejez\u00e9s\u00e9re id\u0151t\u00fall\u00e9p\u00e9ssel z\u00e1ruljon le.\n<li class=\"l\"> imapc: P\u00e1d a virtu\u00e1lis pluginon kereszt\u00fcl megjelen\u00edtett mappa elt\u0171n\u00e9sekor.\n<li class=\"l\"> imapc: Az EXPUNGE, EXISTS vagy FETCH v\u00e1laszok a kor\u00e1bban kiv\u00e1lasztott levelez\u0151dobozt\u00f3l \u00fagy ker\u00fclhettek kezel\u00e9sre, mintha egy \u00fajonnan kiv\u00e1lasztott levelez\u0151dobozt \u00e9rinten\u00e9nek. Ez figyelmeztet\u00e9sekhez vezethetett. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/hu\/server\/dts-los-angeles\/\"   title=\"a szerver\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3724\">a szerver<\/a> lib-http: A Dovecot HTTP-szerver (doveadm, stats\/openmetrics) a HTTP-kliens lekapcsol\u00e1s\u00e1hoz vezethetett a v\u00e1lasz teljes elk\u00fcld\u00e9se el\u0151tt. Ez csak zs\u00fafolt szervereken fordult el\u0151, ahol a kernel socket pufferei s\u00falyosan t\u00falzs\u00fafoltak voltak.\n<li class=\"l\"> lib-http: Jav\u00edtva egy lehets\u00e9ges hiba, amely a http-szerver korai klienslev\u00e1l\u00e1sakor l\u00e9pett fel. Regresszi\u00f3 a 2.3.18-as verzi\u00f3ban.\n<li class=\"l\"> lib-index: Az indexf\u00e1jl s\u00e9r\u00fcl\u00e9se \u00fczemzavart okozhatott. Jav\u00edtva: Panic: file mail-transaction-log-view.c: line 165 (mail_transaction_log_view_set): assertion failed: (min_file_seq &lt;= max_file_seq).\n<li class=\"l\"> lib-index: Az indexf\u00e1jl s\u00e9r\u00fcl\u00e9se \u00fczemzavart okozhatott. Jav\u00edtva: Panic: file mail-transaction-log-view.c: line 165 (mail_transaction_log_view_set): assertion failed: (min_file_seq &lt;= max_file_seq).\n<li class=\"l\">  lib-index: A megl\u00e9v\u0151, 1 GB-n\u00e1l nagyobb m\u00e9ret\u0171 gyors\u00edt\u00f3t\u00e1r-f\u00e1jl t\u00f6rl\u00e9se le\u00e1ll\u00e1st okozhatott. Mostant\u00f3l a t\u00f6rl\u00e9s ut\u00e1n azok a gyors\u00edt\u00f3t\u00e1r-f\u00e1jlok, amelyek m\u00e9rete m\u00e9g mindig meghaladja az 1 GB-ot, t\u00f6rl\u00e9sre ker\u00fclnek. Elh\u00e1r\u00edtva: Panic: file mail-index-util.c: line 10 (mail_index_uint32_to_offset): assertion failed: (offset &lt; 0x40000000).\n<li class=\"l\"> lib-lua: A HTTP-kliens nem tudta meghat\u00e1rozni a DNS-neveket a postai folyamatokban, mivel azt v\u00e1rta, hogy a &#171;dns-client&#187; socket a jelenlegi k\u00f6nyvt\u00e1rban legyen.\n<li class=\"l\"> lib-oauth2: A Dovecot a client_id-t \u00e9s client_secret-et POST-param\u00e9terk\u00e9nt k\u00fcldte az introspekto szerverre. Azonban, Basic auth eset\u00e9n ezek haszn\u00e1lata opcion\u00e1lis.\n<li class=\"l\"> lib-oauth2: A JWT &#171;aud&#187; \u00e9rv\u00e9nyes\u00edt\u00e9se nem t\u00f6rt\u00e9nt meg, ha az &#171;aud&#187; hi\u00e1nyzott a tokenb\u0151l, de be volt \u00e1ll\u00edtva a Dovecotban.\n<li class=\"l\"> lib-oauth2: T\u00fal szigor\u00fa JWT kulcs ellen\u0151rz\u00e9s.\n<li class=\"l\"> lib-oauth2: A JWT-token k\u00f6z\u00f6ns\u00e9ge nem lett ellen\u0151rizve a client_id-nek val\u00f3 megfelel\u00e9s szempontj\u00e1b\u00f3l, ahogy azt a specifik\u00e1ci\u00f3 megk\u00f6veteli.\n<li class=\"l\"> lib-ssl-iostream: Az ssl_require_crl=yes param\u00e9ter haszn\u00e1lata CRL-ellen\u0151rz\u00e9si hib\u00e1khoz vezethetett a kimen\u0151 SSL\/TLS kapcsolatok eset\u00e9n, b\u00e1r azt felt\u00e9telezt\u00e9k, hogy csak a kliens oldali CRL-ellen\u0151rz\u00e9sre van hat\u00e1ssal. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/hu\/ssl-sertifikat\/\"   title=\"SSL tan\u00fas\u00edtv\u00e1nyok\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"345\">SSL tan\u00fas\u00edtv\u00e1nyok<\/a>. v2.3.17 regresszi\u00f3.\n<li class=\"l\"> lib-sql: A MySQL illeszt\u0151program mem\u00f3ria sziv\u00e1rg\u00e1s\u00e1t engedte meg sikertelen kapcsolat eset\u00e9n.\n<li class=\"l\"> lib-storage: K\u00fcl\u00f6nb\u00f6z\u0151 jav\u00edt\u00e1sok a lemezen l\u00e9v\u0151 hely hi\u00e1ny\u00e1ra.\n<li class=\"l\"> master: Az idle_kill szolg\u00e1ltat\u00e1s be\u00e1ll\u00edt\u00e1sa nem m\u0171k\u00f6d\u00f6tt megfelel\u0151en a terhelt szervereken. Nagyon val\u00f3sz\u00edn\u0171tlen volt, hogy b\u00e1rmilyen folyamat annyira t\u00e9tlen legyen, hogy meg\u00f6lj\u00e9k. Ezen k\u00edv\u00fcl, ha sok folyamat volt (p\u00e9ld\u00e1ul imap), az idle_kill feldolgoz\u00f3 k\u00f3dja elegend\u0151 CPU-t haszn\u00e1lt a f\u0151 folyamatban. Mostant\u00f3l minden idle_kill id\u0151intervallum nyomon k\u00f6veti a leghalv\u00e1nyabb t\u00e9tlen folyamatok sz\u00e1m\u00e1t, majd meg\u00f6li ezt a sz\u00e1mot.\n<li class=\"l\"> mdbox: A ideiglenes f\u00e1jlok ellen\u0151rz\u00e9se mindig \u00fcres k\u00f6nyvt\u00e1rakra lett v\u00e9grehajtva.\n<li class=\"l\"> mdbox: Az e-mailek \u00edr\u00e1sakor a fdatasync() h\u00edv\u00e1sa a helytelen sz\u00fcl\u0151 k\u00f6nyvt\u00e1rban t\u00f6rt\u00e9nt. Ezen k\u00edv\u00fcl hib\u00e1s le\u00e1ll\u00e1st okozott ahelyett, hogy hiba\u00fczenetet \u00edrt volna a napl\u00f3ba.\n<li class=\"l\"> notify_status: A b\u0151v\u00edtm\u00e9ny le\u00e1ll, amikor a felhaszn\u00e1l\u00f3 inicializ\u00e1l\u00e1sa nem siker\u00fcl.    &#8212; pop3: A &#8216;:&#8217; szimb\u00f3lummal rendelkez\u0151 parancs k\u00fcld\u00e9se a &#171;assert-crash&#187; le\u00e1ll\u00e1shoz vezetett. Visszaes\u00e9s a 2.3.18 kiad\u00e1sban.\n<li class=\"l\"> statisztika: Megsz\u00fcntett\u00e9k a p\u00e1nikot, amely akkor keletkezett, amikor egy nem l\u00e9tez\u0151 esem\u00e9nyexport\u0151r h\u00edv\u00e1sakor dinamikusan \u00faj metrika hozz\u00e1ad\u00e1s\u00e1t pr\u00f3b\u00e1lt\u00e1k meg a &#171;doveadm stats add&#187; parancs seg\u00edts\u00e9g\u00e9vel. Most helyes hiba\u00fczenet jelenik meg.\n<li class=\"l\"> statisztika: Ha a folyamat sok esem\u00e9nyt export\u00e1lt, majd befejez\u0151d\u00f6tt, lehet, hogy az utols\u00f3 esem\u00e9nyek egy r\u00e9sze elveszett.\n<li class=\"l\"> statisztika: Helytelen Prometheus c\u00edmkenevek j\u00f6ttek l\u00e9tre bizonyos histogram group_by konfigur\u00e1ci\u00f3k sor\u00e1n. A Prometheus elutas\u00edtotta ezeket a c\u00edmk\u00e9ket.\n<li class=\"l\"> \u00fcdv\u00f6z\u00f6lj\u00fck: A plugin nem futott bizonyos helyzetekben, amikor az INBOX l\u00e9trej\u00f6tt, de nem ny\u00edlt meg, p\u00e9ld\u00e1ul ha az INBOX megnyit\u00e1sa el\u0151tt GETMETADATA-t haszn\u00e1ltak.  <\/ul>\n<p>Forr\u00e1s: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=59895\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430 \u043d\u043e\u0432\u0430\u044f \u0432\u0435\u0440\u0441\u0438\u044f \u043c\u043d\u043e\u0433\u043e\u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0435\u043d\u043d\u043e\u0433\u043e \u0432\u044b\u0441\u043e\u043a\u043e\u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0433\u043e POP3\/IMAP4-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 Dovecot 2.3.21, \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u044e\u0449\u0435\u0433\u043e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u044b POP3 \u0438 IMAP4rev1 \u0441 \u043f\u043e\u043f\u0443\u043b\u044f\u0440\u043d\u044b\u043c\u0438 \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u044f\u043c\u0438, \u0442\u0430\u043a\u0438\u043c\u0438 \u043a\u0430\u043a SORT, THREAD \u0438 IDLE, \u0438 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430\u043c\u0438 \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u0438 \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u044f (SASL, TLS, SCRAM). Dovecot \u0441\u043e\u0445\u0440\u0430\u043d\u044f\u0435\u0442 \u043f\u043e\u043b\u043d\u0443\u044e \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u043e\u0441\u0442\u044c \u0441 \u043a\u043b\u0430\u0441\u0441\u0438\u0447\u0435\u0441\u043a\u0438\u043c\u0438 mbox \u0438 Maildir, \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u044f \u0432\u043d\u0435\u0448\u043d\u0438\u0435 \u0438\u043d\u0434\u0435\u043a\u0441\u044b \u0434\u043b\u044f \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438. \u0414\u043b\u044f \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u044f \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u043c\u043e\u0433\u0443\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u043f\u043b\u0430\u0433\u0438\u043d\u044b (\u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, 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