{"id":104685,"date":"2022-07-23T03:36:41","date_gmt":"2022-07-23T01:36:42","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vsmtp-pochtovyj-server-so-vstroennym-yazykom-dlya-filtraczii-trafika"},"modified":"2022-07-23T03:36:41","modified_gmt":"2022-07-23T01:36:42","slug":"vsmtp-pochtovyj-server-so-vstroennym-yazykom-dlya-filtraczii-trafika","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/vsmtp-pochtovyj-server-so-vstroennym-yazykom-dlya-filtraczii-trafika","title":{"rendered":"vSMTP \u2014 servidor de e-mail com linguagem incorporada para filtragem de tr\u00e1fego","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>O projeto vSMTP desenvolve um novo servidor de e-mail (MTA), focado em garantir alto desempenho e fornecer flexibilidade nas op\u00e7\u00f5es de filtragem e gerenciamento de tr\u00e1fego. O c\u00f3digo do projeto \u00e9 escrito na linguagem Rust e \u00e9 distribu\u00eddo sob a licen\u00e7a GPLv3.    <\/p>\n<p>De acordo com os resultados dos testes publicados pelos desenvolvedores, o vSMTP \u00e9 dez vezes mais r\u00e1pido do que os MTA concorrentes. Por exemplo, o vSMTP apresentou uma capacidade de throughput de 4-13 vezes superior \u00e0 do Postfix 3.6.4 ao enviar mensagens de 100 KB com 4-16 sess\u00f5es simult\u00e2neas. O alto desempenho \u00e9 alcan\u00e7ado atrav\u00e9s da utiliza\u00e7\u00e3o de uma arquitetura multithread, onde canais ass\u00edncronos s\u00e3o usados para a intera\u00e7\u00e3o entre threads.    <center><img decoding=\"async\" alt=\"vSMTP - servidor de e-mail com uma linguagem embutida para filtragem de tr\u00e1fego \" src=\"\/wp-content\/uploads\/2022\/07\/e83c7a17a983806e63f6957e1098b1ef.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>    <\/p>\n<p>O vSMTP se desenvolve com uma forte \u00eanfase na seguran\u00e7a, o que \u00e9 alcan\u00e7ado atrav\u00e9s de testes intensivos utilizando tanto testes est\u00e1ticos quanto din\u00e2micos, al\u00e9m do uso da linguagem Rust, que, quando bem utilizada, evita muitos erros relacionados ao gerenciamento de mem\u00f3ria. Os arquivos de configura\u00e7\u00e3o s\u00e3o definidos no formato TOML.      <center><img decoding=\"async\" alt=\"vSMTP - servidor de e-mail com uma linguagem embutida para filtragem de tr\u00e1fego \" src=\"\/wp-content\/uploads\/2022\/07\/70eaf3e7acba9e6f6f0c23889a23090c.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>        <\/p>\n<p>Uma caracter\u00edstica do projeto \u00e9 a presen\u00e7a de uma linguagem embutida, o vSL, para a cria\u00e7\u00e3o de scripts de filtragem de e-mails, permitindo a cria\u00e7\u00e3o de regras muito flex\u00edveis para a filtragem de conte\u00fado indesejado e gerenciamento de tr\u00e1fego. A linguagem \u00e9 baseada no Rhai, que utiliza tipagem din\u00e2mica, permitindo a inser\u00e7\u00e3o de c\u00f3digo em programas em Rust e fornecendo uma sintaxe que lembra uma mistura de JavaScript e Rust. Os scripts t\u00eam acesso a uma API para inspecionar e modificar mensagens recebidas, redirecionar mensagens e gerenciar sua entrega em hosts locais e remotos. Os scripts tamb\u00e9m suportam conex\u00e3o a SGBDs, a execu\u00e7\u00e3o de comandos arbitr\u00e1rios e a coloca\u00e7\u00e3o de e-mails em quarentena. Al\u00e9m do vSL, o vSMTP tamb\u00e9m suporta SPF e filtros baseados em listas de open relays para combater mensagens indesejadas.    <\/p>\n<p>Os planos para a pr\u00f3xima vers\u00e3o destacam a possibilidade de integra\u00e7\u00e3o com bancos de dados baseados em SQL (atualmente, os dados sobre endere\u00e7os e hosts s\u00e3o fornecidos no formato CSV) e suporte a mecanismos de autentica\u00e7\u00e3o DANE (DNS-Based Authentication of Named Entities) e DMARC (Domain-based Message Authentication). Em vers\u00f5es mais avan\u00e7adas, est\u00e1 previsto implementar mecanismos BIMI (Brand Indicators for Message Identification) e ARC (Authenticated Received Chain), integra\u00e7\u00e3o com Redis, Memcached e LDAP, ferramentas para prote\u00e7\u00e3o contra DDoS e bots de SPAM, e plugins para realizar verifica\u00e7\u00f5es em pacotes antiv\u00edrus (ClamAV, Sophos, etc.).<br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57539\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u043e\u0435\u043a\u0442 vSMTP \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442 \u043d\u043e\u0432\u044b\u0439 \u043f\u043e\u0447\u0442\u043e\u0432\u044b\u0439 \u0441\u0435\u0440\u0432\u0435\u0440 (MTA), \u043d\u0430\u0446\u0435\u043b\u0435\u043d\u043d\u044b\u0439 \u043d\u0430 \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u0435 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u0438 \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u0433\u0438\u0431\u043a\u0438\u0445 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0435\u0439 \u043f\u043e \u0444\u0438\u043b\u044c\u0442\u0440\u0430\u0446\u0438\u0438 \u0438 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0442\u0440\u0430\u0444\u0438\u043a\u043e\u043c. \u041a\u043e\u0434 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Rust \u0438 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 GPLv3. \u0412 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0438\u0438 \u0441 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u043d\u044b\u043c\u0438 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430\u043c\u0438 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u0430\u043c\u0438 \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f, vSMTP \u0432 \u0434\u0435\u0441\u044f\u0442\u044c \u0440\u0430\u0437 \u0431\u044b\u0441\u0442\u0440\u0435\u0435, \u0447\u0435\u043c \u043a\u043e\u043d\u043a\u0443\u0440\u0438\u0440\u0443\u044e\u0449\u0438\u0435 MTA. \u041d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, vSMTP \u043f\u043e\u043a\u0430\u0437\u0430\u043b \u0432 4-13 \u0440\u0430\u0437 \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u0443\u044e [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":104686,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-104685","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u0440\u043e\u0435\u043a\u0442 vSMTP \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442 \u043d\u043e\u0432\u044b\u0439 \u043f\u043e\u0447\u0442\u043e\u0432\u044b\u0439 \u0441\u0435\u0440\u0432\u0435\u0440 (MTA), \u043d\u0430\u0446\u0435\u043b\u0435\u043d\u043d\u044b\u0439 \u043d\u0430 \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u0435 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 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