{"id":84602,"date":"2020-06-09T13:42:14","date_gmt":"2020-06-09T11:42:14","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/novaya-versiya-pochtovogo-servera-exim-4-94"},"modified":"2020-06-09T13:42:14","modified_gmt":"2020-06-09T11:42:14","slug":"novaya-versiya-pochtovogo-servera-exim-4-94","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/novaya-versiya-pochtovogo-servera-exim-4-94","title":{"rendered":"Noua versiune a serverului de email Exim 4.94","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Dup\u0103 6 luni de dezvoltare <noindex><a rel=\"nofollow\" href=\"https:\/\/lists.exim.org\/lurker\/message\/20200601.152400.f7bce8f6.en.html\">a avut loc<\/a><\/noindex> lansare server de email <noindex><a rel=\"nofollow\" href=\"http:\/\/exim.org\/\">Exim 4.94<\/a><\/noindex>, \u00een care au fost incluse corec\u021biile acumulate \u0219i ad\u0103ugate noi func\u021bionalit\u0103\u021bi. Conform datelor din luna mai, <noindex><a rel=\"nofollow\" href=\"http:\/\/www.securityspace.com\/s_survey\/data\/man.202005\/mxsurvey.html\">sondare automatizat\u0103<\/a><\/noindex> aproape un milion de servere po\u0219tale, din care Exim reprezint\u0103 57,59% (cu un an \u00een urm\u0103 53,03%), Postfix este utilizat pe 34,70% (34,51%) dintre serverele po\u0219tale, Sendmail \u2014 3,75% (4,05%), Microsoft Exchange \u2014 0,42% (0,57%). <\/p>\n<p>Modific\u0103rile din noua versiune pot duce la pierderea compatibilit\u0103\u021bii \u00eenapoi. \u00cen special, anumite tipuri de transport nu mai func\u021bioneaz\u0103 cu datele necur\u0103\u021bate (tainted, valori bazate pe date ob\u021binute de la expeditor) \u00een determinarea loca\u021biei de livrare. De exemplu, pot ap\u0103rea probleme atunci c\u00e2nd se utilizeaz\u0103 variabila $local_part \u00een setarea \u201echeck_local_user\u201d la rutarea unui mesaj. \u00cen loc de $local_part, ar trebui utilizat\u0103 noua variabil\u0103 cur\u0103\u021bat\u0103 \u201e$local_part_data\u201d. De asemenea, \u00een operandele op\u021biunii headers_remove, acum este permis\u0103 utilizarea mascotelor definite cu simbolul \u201e*\u201d, ceea ce poate duce la nefunc\u021bionarea configura\u021biilor \u00een care au fost eliminate antetele care se termin\u0103 cu simbolul asterisc (\u00een loc de a elimina antete specifice, se va efectua eliminarea dup\u0103 masc\u0103).<\/p>\n<p>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/git.exim.org\/exim.git\/blob_plain\/HEAD:\/doc\/doc-txt\/ChangeLog\">Principalele<\/a><\/noindex> <noindex><a rel=\"nofollow\" href=\"https:\/\/git.exim.org\/exim.git\/blob_plain\/HEAD:\/doc\/doc-txt\/NewStuff\">modific\u0103ri<\/a><\/noindex>:<\/p>\n<ul>\n<li class=\"l\"> A fost ad\u0103ugat\u0103 o suport experimental \u00eencorporat pentru mecanismul SRS (Sender Rewriting Scheme), permi\u021b\u00e2nd rescrierea adresei expeditorului la redirec\u021bionare f\u0103r\u0103 a \u00eenc\u0103lca verific\u0103rile SPF (<noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Sender_Rewriting_Scheme\">Sender Policy Framework<\/a><\/noindex>) \u0219i asigur\u00e2nd p\u0103strarea datelor despre expeditor pentru a direc\u021biona mesajele serverului \u00een caz de eroare la livrare. Esen\u021ba metodei este c\u0103, atunci c\u00e2nd se stabile\u0219te conexiunea, sunt transmise informa\u021bii despre identitatea cu expeditorul ini\u021bial, de exemplu, c\u00e2nd se rescrie alice@example.org \u00een alice@example.com, va fi specificat \u201eSRS0=HHH=TT=example.org=alice@example.com\u201d. SRS este relevant, de exemplu, \u00een organizarea listelor de distribu\u021bie, \u00een care mesajul original este redirec\u021bionat c\u0103tre al\u021bi destinatari.\n<li class=\"l\"> \u00cen utilizarea OpenSSL a fost ad\u0103ugat\u0103 suportul pentru fixarea canalului pentru <noindex><a rel=\"nofollow\" href=\"https:\/\/www.exim.org\/exim-html-current\/doc\/html\/spec_html\/ch-smtp_authentication.html\">autentificatori<\/a><\/noindex> (anterior era suportat doar pentru GnuTLS).\n<li class=\"l\"> A fost ad\u0103ugat evenimentul \u201emsg:defer\u201d.\n<li class=\"l\"> A fost implementat suport pentru autentificatorul gsasl pe partea clientului, care a fost testat doar cu handler-ul parolelor clare (plaintext). Func\u021bionarea metodelor SCRAM-SHA-256 \u0219i SCRAM-SHA-256-PLUS este posibil\u0103 doar prin intermediul <noindex><a rel=\"nofollow\" href=\"https:\/\/www.exim.org\/exim-html-current\/doc\/html\/spec_html\/ch-the_gsasl_authenticator.html\">gsasl<\/a><\/noindex>.\n<li class=\"l\">  A fost implementat suport pentru autentificatorul gsasl pe partea serverului pentru parole criptate, care reprezint\u0103 o alternativ\u0103 la modul anterior disponibil plaintext.\n<li class=\"l\"> Defini\u021biile din listele denumite pot fi acum marcate cu prefixul \u201ehide\u201d pentru a suprima ie\u0219irea con\u021binutului atunci c\u00e2nd se execut\u0103 comanda \u201e-bP\u201d.\n<li class=\"l\"> \u00cen driverul de autentificare prin serverul IMAP Dovecot a fost ad\u0103ugat\u0103 suport experimental pentru socket-uri internet (anterior erau acceptate doar socket-uri de domeniu unix).\n<li class=\"l\"> Expresia ACL \u201equeue_only\u201d poate fi acum specificat\u0103 ca \u201equeue\u201d \u0219i suport\u0103 op\u021biunea \u201efirst_pass_route\u201d, similar\u0103 op\u021biunii din linia de comand\u0103 \u201e-odqs\u201d.\n<li class=\"l\"> Au fost ad\u0103ugate noi variabile $queue_size \u0219i $local_part_{pre,suf}fix_v.\n<li class=\"l\"> \u00cen blocul principal de configurare a fost ad\u0103ugat\u0103 op\u021biunea \u201esqlite_dbfile\u201d pentru utilizarea la definirea prefixului expresiei de c\u0103utare. Aceast\u0103 modificare duce la pierderea compatibilit\u0103\u021bii \u00eenapoi \u2014 metoda veche de specificare a prefixului nu mai func\u021bioneaz\u0103 atunci c\u00e2nd se folosesc variabile necur\u0103\u021bate (tainted) \u00een interog\u0103rile lookup. Noua metod\u0103 (\u201esqlite_dbfile\u201d) permite p\u0103strarea numelui fi\u0219ierului separat.\n<li class=\"l\"> \u00cen blocurile de lookup dsearch au fost ad\u0103ugate op\u021biuni pentru returnarea c\u0103ii complete \u0219i filtrarea tipurilor de fi\u0219iere \u00een procesul de mapare.\n<li class=\"l\"> \u00cen blocurile de lookup pgsql \u0219i mysql au fost ad\u0103ugate op\u021biuni pentru specificarea numelui serverului separat de \u0219irul de c\u0103utare.\n<li class=\"l\"> Pentru blocurile de lookup care efectueaz\u0103 selec\u021bii pe o singur\u0103 cheie, a fost ad\u0103ugat\u0103 o op\u021biune pentru returnarea unei versiuni cur\u0103\u021bate (de-tainted) a cheii \u00een cazul existen\u021bei unor potriviri, \u00een loc de datele c\u0103utate.\n<li class=\"l\"> Pentru toate selec\u021biile reu\u0219ite list-match, este asigurat\u0103 setarea variabilelor $domain_data \u0219i $localpart_data (anterior erau inserate elementele listei implicate \u00een selec\u021bie). De asemenea, elementele listei utilizate \u00een procesul de mapare sunt acum atribuite variabilelor $0, $1 etc.\n<li class=\"l\"> A fost ad\u0103ugat operatorul de expansiune \u201e${listquote {} {}}\u201d.\n<li class=\"l\"> \u00cen operatorul de extindere ${readsocket {}{}{}} a fost ad\u0103ugat\u0103 o op\u021biune pentru asigurarea cache-ului rezultatelor.\n<li class=\"l\"> A fost ad\u0103ugat\u0103 setarea dkim_verify_min_keysizes pentru enumerarea dimensiunilor minime admise ale cheilor publice.\n<li class=\"l\"> A fost asigurat\u0103 dezv\u0103luirea parametrilor \u00abbounce_message_file\u00bb \u0219i \u00abwarn_message_file\u00bb \u00eenainte de prima utilizare.\n<li class=\"l\"> S-a ad\u0103ugat op\u021biunea \u00abspf_smtp_comment_template\u00bb pentru a configura valoarea variabilei \u00ab$spf_smtp_comment\u00bb.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Sursa: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53116\">opennet.ro<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 6 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0441\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 \u043f\u043e\u0447\u0442\u043e\u0432\u043e\u0433\u043e \u0441\u0435\u0440\u0432\u0435\u0440\u0430 Exim 4.94, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0432\u043d\u0435\u0441\u0435\u043d\u044b \u043d\u0430\u043a\u043e\u043f\u0438\u0432\u0448\u0438\u0435\u0441\u044f \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0438 \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u044b \u043d\u043e\u0432\u044b\u0435 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438. \u0412 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0438\u0438 \u0441 \u043c\u0430\u0439\u0441\u043a\u0438\u043c \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u043c \u043e\u043f\u0440\u043e\u0441\u043e\u043c \u043e\u043a\u043e\u043b\u043e \u043c\u0438\u043b\u043b\u0438\u043e\u043d\u0430 \u043f\u043e\u0447\u0442\u043e\u0432\u044b\u0445 \u0441\u0435\u0440\u0432\u0435\u0440\u043e\u0432, \u0434\u043e\u043b\u044f Exim \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 57.59% (\u0433\u043e\u0434 \u043d\u0430\u0437\u0430\u0434 53.03%), Postfix \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u043d\u0430 34.70% (34.51%) \u043f\u043e\u0447\u0442\u043e\u0432\u044b\u0445 \u0441\u0435\u0440\u0432\u0435\u0440\u043e\u0432, Sendmail &#8212; 3.75% (4.05%), Microsoft Exchange &#8212; 0.42% (0.57%). \u0418\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0432 \u043d\u043e\u0432\u043e\u043c [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-84602","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u043e\u0441\u043b\u0435 6 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0441\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 \u043f\u043e\u0447\u0442\u043e\u0432\u043e\u0433\u043e \u0441\u0435\u0440\u0432\u0435\u0440\u0430\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" 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