{"id":505,"date":"2026-04-27T13:00:29","date_gmt":"2026-04-27T16:00:29","guid":{"rendered":"https:\/\/jrtx.com.br\/blog\/2026\/04\/27\/aula-5-nftables-o-substituto-moderno-do-iptables\/"},"modified":"2026-04-27T13:00:29","modified_gmt":"2026-04-27T16:00:29","slug":"aula-5-nftables-o-substituto-moderno-do-iptables","status":"publish","type":"post","link":"https:\/\/jrtx.com.br\/blog\/2026\/04\/27\/aula-5-nftables-o-substituto-moderno-do-iptables\/","title":{"rendered":"Aula 5: nftables \u2014 o substituto moderno do iptables"},"content":{"rendered":"<p>Nesta aula, voc\u00ea vai conhecer o <strong>nftables<\/strong>, uma ferramenta moderna e vers\u00e1til para o gerenciamento de firewalls em sistemas Linux. Vamos explorar suas funcionalidades b\u00e1sicas, compreender por que ele \u00e9 considerado o sucessor do iptables e aprender a instal\u00e1-lo e configur\u00e1-lo em diferentes sistemas operacionais. Esta aula \u00e9 fundamental para entender como proteger suas redes eficazmente com t\u00e9cnicas atuais de firewall.<\/p>\n<h3>O que voc\u00ea vai aprender nesta aula<\/h3>\n<ul>\n<li>Conceitos fundamentais do <strong>nftables<\/strong><\/li>\n<li>Compara\u00e7\u00e3o entre <strong>nftables<\/strong> e seu antecessor, o <strong>iptables<\/strong><\/li>\n<li>Licen\u00e7as de software e o que elas significam para o uso de nftables<\/li>\n<li>Instala\u00e7\u00e3o e configura\u00e7\u00e3o pr\u00e1tica do <strong>nftables<\/strong><\/li>\n<\/ul>\n<h3>Conceitos Fundamentais do nftables<\/h3>\n<p>O <strong>nftables<\/strong> \u00e9 a nova gera\u00e7\u00e3o de subsistema de filtragem de pacotes do kernel do Linux. Ele tem como objetivo substituir o iptables, fornecendo uma maneira mais eficiente e poderosa de gerenciar regras de firewall. O nftables introduz uma nova sintaxe que unifica e simplifica a administra\u00e7\u00e3o de regras, permitindo maior flexibilidade e desempenho.<\/p>\n<p>Mas, o que isso realmente significa? Pense no <strong>iptables<\/strong> como uma antiga central telef\u00f4nica onde cada conex\u00e3o precisava ser feita manualmente; j\u00e1 o <strong>nftables<\/strong> \u00e9 uma central automatizada que faz isso de forma mais r\u00e1pida e eficaz.<\/p>\n<h3>Licen\u00e7as de Software no Contexto do nftables<\/h3>\n<p>O <strong>nftables<\/strong> \u00e9 um software de c\u00f3digo aberto, geralmente distribu\u00eddo sob a licen\u00e7a <strong>GPL<\/strong> (General Public License). Vamos entender brevemente as diferentes licen\u00e7as de software:<\/p>\n<ul>\n<li><strong>Open Source<\/strong>: Software cujo c\u00f3digo fonte est\u00e1 dispon\u00edvel para modifica\u00e7\u00e3o e distribui\u00e7\u00e3o.<\/li>\n<li><strong>GPL (General Public License)<\/strong>: Permite a liberdade de usar, modificar e distribuir o software, garantindo que todas as vers\u00f5es derivadas tamb\u00e9m sejam de c\u00f3digo aberto.<\/li>\n<li><strong>MIT<\/strong>: Uma licen\u00e7a permissiva que permite aos usu\u00e1rios praticamente qualquer coisa com o c\u00f3digo, desde que incluam o aviso de licen\u00e7a original.<\/li>\n<li><strong>BSD<\/strong>: Similar \u00e0 MIT, mas com restri\u00e7\u00f5es relacionadas \u00e0 promo\u00e7\u00e3o do nome dos autores originais.<\/li>\n<li><strong>Apache<\/strong>: Permite reusar o software desde que direitos e a marca registrada sejam respeitados.<\/li>\n<li><strong>Comercial\/Propriet\u00e1ria<\/strong>: O c\u00f3digo \u00e9 fechado e as permiss\u00f5es de uso s\u00e3o mais restritas.<\/li>\n<\/ul>\n<p>Utilizando a licen\u00e7a GPL, o <strong>nftables<\/strong> garante liberdade aos usu\u00e1rios, permitindo personaliza\u00e7\u00f5es espec\u00edficas conforme as necessidades de seguran\u00e7a em seus sistemas de rede.<\/p>\n<h3>Instala\u00e7\u00e3o e Configura\u00e7\u00e3o do nftables<\/h3>\n<pre><code># Atualizando pacotes e instalando o nftables no Ubuntu\/Debian\nsudo apt update\nsudo apt install nftables\n\n# Ativando e iniciando o servi\u00e7o\nsudo systemctl enable nftables\nsudo systemctl start nftables\n\n# Verificando o status do servi\u00e7o\nsudo systemctl status nftables\n<\/code><\/pre>\n<p>No comando acima:<\/p>\n<ul>\n<li><strong>sudo apt update<\/strong>: Atualiza a lista de pacotes dispon\u00edveis e suas vers\u00f5es.<\/li>\n<li><strong>sudo apt install nftables<\/strong>: Instala o pacote nftables.<\/li>\n<li><strong>sudo systemctl enable nftables<\/strong>: Configura o nftables para iniciar automaticamente.<\/li>\n<li><strong>sudo systemctl start nftables<\/strong>: Inicia o servi\u00e7o nftables.<\/li>\n<li><strong>sudo systemctl status nftables<\/strong>: Exibe o status atual do servi\u00e7o.<\/li>\n<\/ul>\n<p>Para usu\u00e1rios de CentOS\/RHEL:<\/p>\n<pre><code># Atualizando pacotes e instalando o nftables no CentOS\/RHEL\nsudo yum update\nsudo yum install nftables\n\n# Ativando e iniciando o servi\u00e7o\nsudo systemctl enable nftables\nsudo systemctl start nftables\n\n# Verificando o status do servi\u00e7o\nsudo systemctl status nftables\n<\/code><\/pre>\n<p>Os passos s\u00e3o semelhantes, mas usando o gerenciador de pacotes <strong>yum<\/strong>.<\/p>\n<h3>Implementa\u00e7\u00e3o Pr\u00e1tica e Exemplos<\/h3>\n<p>Ap\u00f3s a instala\u00e7\u00e3o, podemos come\u00e7ar a criar regras para controlar o tr\u00e1fego da rede. Considere um cen\u00e1rio simples onde queremos permitir somente o tr\u00e1fego SSH e HTTP:<\/p>\n<pre><code># Limpando regras antigas\nsudo nft flush ruleset\n\n# Criando uma tabela e configurando regras\nsudo nft add table inet my_table\nsudo nft add chain inet my_table my_chain { type filter hook input priority 0 \\; }\nsudo nft add rule inet my_table my_chain tcp dport { 22, 80 } accept\n<\/code><\/pre>\n<p>No exemplo acima:<\/p>\n<ul>\n<li><strong>sudo nft flush ruleset<\/strong>: Limpa regras anteriores.<\/li>\n<li><strong>sudo nft add table inet my_table<\/strong>: Cria uma nova tabela de regras.<\/li>\n<li><strong>sudo nft add chain inet my_table my_chain<\/strong>: Define uma cadeia dentro da tabela para processar tr\u00e1fego de entrada.<\/li>\n<li><strong>sudo nft add rule inet my_table my_chain tcp dport { 22, 80 } accept<\/strong>: Adiciona regra para aceitar conex\u00f5es SSH e HTTP.<\/li>\n<\/ul>\n<p>Essas regras s\u00e3o apenas o come\u00e7o. O nftables oferece uma gama vasta de op\u00e7\u00f5es que nossos especialistas utilizam diariamente em projetos na JRT Technology Solutions para implementar solu\u00e7\u00f5es personalizadas de seguran\u00e7a de rede.<\/p>\n<h3>Resumo da Aula 5<\/h3>\n<p>Aprendemos que o <strong>nftables<\/strong> \u00e9 uma evolu\u00e7\u00e3o natural na gest\u00e3o de firewalls no Linux, trazendo melhores pr\u00e1ticas e efici\u00eancia em rela\u00e7\u00e3o ao iptables. Exploramos suas vantagens, analisamos suas licen\u00e7as e at\u00e9 configuramos um firewall b\u00e1sico. Na pr\u00f3xima aula, vamos aprofundar no uso avan\u00e7ado do nftables, abordando aspectos de performance e seguran\u00e7a. Fique atento e at\u00e9 l\u00e1!<\/p>\n<div style=\"margin:48px 0 32px;padding:32px 24px;background:#f0fdf4;border:1px solid #bbf7d0;border-radius:16px;text-align:center;\">\n<p style=\"margin:0 0 8px;font-size:17px;color:#111827;font-weight:700;\">Quer aprender na pr\u00e1tica com especialistas?<\/p>\n<p style=\"margin:0 0 24px;font-size:15px;color:#1f2937;font-weight:400;\">A JRT Technology Solutions oferece treinamentos e implementa\u00e7\u00e3o de Firewall, fail2ban e CrowdSec para equipes corporativas.<\/p>\n<p>  <a href=\"https:\/\/api.whatsapp.com\/send\/?phone=5521980606699&#038;text=Ol%C3%A1%21+Tenho+interesse+no+treinamento+de+Firewall%2C%20fail2ban%20e%20CrowdSec.&#038;type=phone_number&#038;app_absent=0\"\n     target=\"_blank\" rel=\"noopener noreferrer\"\n     style=\"display:inline-flex;align-items:center;gap:12px;background:#25D366;color:#ffffff;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:16px;font-weight:600;padding:14px 28px;border-radius:100px;text-decoration:none;box-shadow:0 4px 12px rgba(37,211,102,0.4);letter-spacing:0.01em;\"><br \/>\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"22\" height=\"22\" viewBox=\"0 0 24 24\" fill=\"#ffffff\">\n      <path d=\"M17.472 14.382c-.297-.149-1.758-.867-2.03-.967-.273-.099-.471-.148-.67.15-.197.297-.767.966-.94 1.164-.173.199-.347.223-.644.075-.297-.15-1.255-.463-2.39-1.475-.883-.788-1.48-1.761-1.653-2.059-.173-.297-.018-.458.13-.606.134-.133.298-.347.446-.52.149-.174.198-.298.298-.497.099-.198.05-.371-.025-.52-.075-.149-.669-1.612-.916-2.207-.242-.579-.487-.5-.669-.51-.173-.008-.371-.01-.57-.01-.198 0-.52.074-.792.372-.272.297-1.04 1.016-1.04 2.479 0 1.462 1.065 2.875 1.213 3.074.149.198 2.096 3.2 5.077 4.487.709.306 1.262.489 1.694.625.712.227 1.36.195 1.871.118.571-.085 1.758-.719 2.006-1.413.248-.694.248-1.289.173-1.413-.074-.124-.272-.198-.57-.347m-5.421 7.403h-.004a9.87 9.87 0 01-5.031-1.378l-.361-.214-3.741.982.998-3.648-.235-.374a9.86 9.86 0 01-1.51-5.26c.001-5.45 4.436-9.884 9.888-9.884 2.64 0 5.122 1.03 6.988 2.898a9.825 9.825 0 012.893 6.994c-.003 5.45-4.437 9.884-9.885 9.884m8.413-18.297A11.815 11.815 0 0012.05 0C5.495 0 .16 5.335.157 11.892c0 2.096.547 4.142 1.588 5.945L.057 24l6.305-1.654a11.882 11.882 0 005.683 1.448h.005c6.554 0 11.89-5.335 11.893-11.893a11.821 11.821 0 00-3.48-8.413z\"\/>\n    <\/svg><br \/>\n    Falar no WhatsApp<br \/>\n  <\/a>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Descubra como o nftables moderniza o gerenciamento de firewall em nossa aula 5. Aprenda suas vantagens sobre o iptables e como configur\u00e1-lo.<\/p>\n","protected":false},"author":1,"featured_media":503,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"iawp_total_views":0,"footnotes":""},"categories":[50],"tags":[818,495,819],"class_list":["post-505","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-firewall","tag-configuracao-de-nftables","tag-nftables","tag-substituto-de-iptables"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.8 - aioseo.com -->\n\t<meta name=\"description\" content=\"Descubra como o nftables moderniza o gerenciamento de firewall em nossa aula 5. Aprenda suas vantagens sobre o iptables e como configur\u00e1-lo.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Thiago Paes Rodrigues\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/jrtx.com.br\/blog\/2026\/04\/27\/aula-5-nftables-o-substituto-moderno-do-iptables\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.8\" \/>\n\t\t<meta property=\"og:locale\" content=\"pt_BR\" \/>\n\t\t<meta property=\"og:site_name\" content=\"BLOG - JRT Technology Solutions - Um espa\u00e7o dedicado a explorar o universo da tecnologia de forma clara, pr\u00e1tica e atual. Aqui voc\u00ea encontra novidades, an\u00e1lises, tutoriais e reflex\u00f5es sobre inova\u00e7\u00e3o, intelig\u00eancia artificial, gadgets, programa\u00e7\u00e3o e tend\u00eancias digitais. Nosso objetivo \u00e9 simplificar o complexo, ajudar voc\u00ea a se manter atualizado e transformar conhecimento em pr\u00e1tica no seu dia a dia.\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Aula 5: nftables \u2014 o substituto moderno do iptables - BLOG - JRT Technology Solutions\" \/>\n\t\t<meta property=\"og:description\" content=\"Descubra como o nftables moderniza o gerenciamento de firewall em nossa aula 5. Aprenda suas vantagens sobre o iptables e como configur\u00e1-lo.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/jrtx.com.br\/blog\/2026\/04\/27\/aula-5-nftables-o-substituto-moderno-do-iptables\/\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/jrtx.com.br\/blog\/wp-content\/uploads\/2026\/03\/cropped-logo-mini.jpg\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/jrtx.com.br\/blog\/wp-content\/uploads\/2026\/03\/cropped-logo-mini.jpg\" \/>\n\t\t<meta property=\"og:image:width\" content=\"100\" \/>\n\t\t<meta property=\"og:image:height\" content=\"75\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2026-04-27T16:00:29+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2026-04-27T16:00:29+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/profile.php?id=61590814880509\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Aula 5: nftables \u2014 o substituto moderno do iptables - BLOG - JRT Technology Solutions\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Descubra como o nftables moderniza o gerenciamento de firewall em nossa aula 5. Aprenda suas vantagens sobre o iptables e como configur\u00e1-lo.\" \/>\n\t\t<meta name=\"twitter:image\" content=\"https:\/\/jrtx.com.br\/blog\/wp-content\/uploads\/2026\/03\/cropped-logo-mini.jpg\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BlogPosting\",\"@id\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/2026\\\/04\\\/27\\\/aula-5-nftables-o-substituto-moderno-do-iptables\\\/#blogposting\",\"name\":\"Aula 5: nftables \\u2014 o substituto moderno do iptables - BLOG - JRT Technology Solutions\",\"headline\":\"Aula 5: nftables \\u2014 o substituto moderno do iptables\",\"author\":{\"@id\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/author\\\/thiago\\\/#author\"},\"publisher\":{\"@id\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/#organization\"},\"image\":{\"@type\":\"ImageObject\",\"url\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/ai-image-1777305623477.jpg\",\"width\":1024,\"height\":576,\"caption\":\"Aula 5: nftables \\u2014 o substituto moderno do iptables\"},\"datePublished\":\"2026-04-27T13:00:29-03:00\",\"dateModified\":\"2026-04-27T13:00:29-03:00\",\"inLanguage\":\"pt-BR\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/2026\\\/04\\\/27\\\/aula-5-nftables-o-substituto-moderno-do-iptables\\\/#webpage\"},\"isPartOf\":{\"@id\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/2026\\\/04\\\/27\\\/aula-5-nftables-o-substituto-moderno-do-iptables\\\/#webpage\"},\"articleSection\":\"FIREWALL, configura\\u00e7\\u00e3o de nftables, nftables, substituto de iptables\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/2026\\\/04\\\/27\\\/aula-5-nftables-o-substituto-moderno-do-iptables\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/jrtx.com.br\\\/blog#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/jrtx.com.br\\\/blog\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/category\\\/firewall\\\/#listItem\",\"name\":\"FIREWALL\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/category\\\/firewall\\\/#listItem\",\"position\":2,\"name\":\"FIREWALL\",\"item\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/category\\\/firewall\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/2026\\\/04\\\/27\\\/aula-5-nftables-o-substituto-moderno-do-iptables\\\/#listItem\",\"name\":\"Aula 5: nftables \\u2014 o substituto moderno do iptables\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/jrtx.com.br\\\/blog#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/2026\\\/04\\\/27\\\/aula-5-nftables-o-substituto-moderno-do-iptables\\\/#listItem\",\"position\":3,\"name\":\"Aula 5: nftables \\u2014 o substituto moderno do iptables\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/category\\\/firewall\\\/#listItem\",\"name\":\"FIREWALL\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/#organization\",\"name\":\"BLOG - JRT Technology Solutions\",\"description\":\"Um espa\\u00e7o dedicado a explorar o universo da tecnologia de forma clara, pr\\u00e1tica e atual. Aqui voc\\u00ea encontra novidades, an\\u00e1lises, tutoriais e reflex\\u00f5es sobre inova\\u00e7\\u00e3o, intelig\\u00eancia artificial, gadgets, programa\\u00e7\\u00e3o e tend\\u00eancias digitais. Nosso objetivo \\u00e9 simplificar o complexo, ajudar voc\\u00ea a se manter atualizado e transformar conhecimento em pr\\u00e1tica no seu dia a dia.\",\"url\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/\",\"telephone\":\"+552138277513\",\"logo\":{\"@type\":\"ImageObject\",\"url\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/cropped-logo-mini.jpg\",\"@id\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/2026\\\/04\\\/27\\\/aula-5-nftables-o-substituto-moderno-do-iptables\\\/#organizationLogo\",\"width\":100,\"height\":75},\"image\":{\"@id\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/2026\\\/04\\\/27\\\/aula-5-nftables-o-substituto-moderno-do-iptables\\\/#organizationLogo\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/profile.php?id=61590814880509\",\"https:\\\/\\\/www.instagram.com\\\/jrtx.tech\\\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/author\\\/thiago\\\/#author\",\"url\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/author\\\/thiago\\\/\",\"name\":\"Thiago Paes Rodrigues\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/2026\\\/04\\\/27\\\/aula-5-nftables-o-substituto-moderno-do-iptables\\\/#authorImage\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/3cdfdf5f766c59d9c9acab959751c31c3442acd94d4b2927c51d2a0c31b50822?s=96&d=mm&r=g\",\"width\":96,\"height\":96,\"caption\":\"Thiago Paes Rodrigues\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/2026\\\/04\\\/27\\\/aula-5-nftables-o-substituto-moderno-do-iptables\\\/#webpage\",\"url\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/2026\\\/04\\\/27\\\/aula-5-nftables-o-substituto-moderno-do-iptables\\\/\",\"name\":\"Aula 5: nftables \\u2014 o substituto moderno do iptables - BLOG - JRT Technology Solutions\",\"description\":\"Descubra como o nftables moderniza o gerenciamento de firewall em nossa aula 5. Aprenda suas vantagens sobre o iptables e como configur\\u00e1-lo.\",\"inLanguage\":\"pt-BR\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/2026\\\/04\\\/27\\\/aula-5-nftables-o-substituto-moderno-do-iptables\\\/#breadcrumblist\"},\"author\":{\"@id\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/author\\\/thiago\\\/#author\"},\"creator\":{\"@id\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/author\\\/thiago\\\/#author\"},\"image\":{\"@type\":\"ImageObject\",\"url\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/ai-image-1777305623477.jpg\",\"@id\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/2026\\\/04\\\/27\\\/aula-5-nftables-o-substituto-moderno-do-iptables\\\/#mainImage\",\"width\":1024,\"height\":576,\"caption\":\"Aula 5: nftables \\u2014 o substituto moderno do iptables\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/2026\\\/04\\\/27\\\/aula-5-nftables-o-substituto-moderno-do-iptables\\\/#mainImage\"},\"datePublished\":\"2026-04-27T13:00:29-03:00\",\"dateModified\":\"2026-04-27T13:00:29-03:00\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/\",\"name\":\"BLOG - JRT Technology Solutions\",\"description\":\"Um espa\\u00e7o dedicado a explorar o universo da tecnologia de forma clara, pr\\u00e1tica e atual. Aqui voc\\u00ea encontra novidades, an\\u00e1lises, tutoriais e reflex\\u00f5es sobre inova\\u00e7\\u00e3o, intelig\\u00eancia artificial, gadgets, programa\\u00e7\\u00e3o e tend\\u00eancias digitais. Nosso objetivo \\u00e9 simplificar o complexo, ajudar voc\\u00ea a se manter atualizado e transformar conhecimento em pr\\u00e1tica no seu dia a dia.\",\"inLanguage\":\"pt-BR\",\"publisher\":{\"@id\":\"https:\\\/\\\/jrtx.com.br\\\/blog\\\/#organization\"}}]}\n\t\t<\/script>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"Aula 5: nftables \u2014 o substituto moderno do iptables - BLOG - JRT Technology Solutions","description":"Descubra como o nftables moderniza o gerenciamento de firewall em nossa aula 5. Aprenda suas vantagens sobre o iptables e como configur\u00e1-lo.","canonical_url":"https:\/\/jrtx.com.br\/blog\/2026\/04\/27\/aula-5-nftables-o-substituto-moderno-do-iptables\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BlogPosting","@id":"https:\/\/jrtx.com.br\/blog\/2026\/04\/27\/aula-5-nftables-o-substituto-moderno-do-iptables\/#blogposting","name":"Aula 5: nftables \u2014 o substituto moderno do iptables - BLOG - JRT Technology Solutions","headline":"Aula 5: nftables \u2014 o substituto moderno do iptables","author":{"@id":"https:\/\/jrtx.com.br\/blog\/author\/thiago\/#author"},"publisher":{"@id":"https:\/\/jrtx.com.br\/blog\/#organization"},"image":{"@type":"ImageObject","url":"https:\/\/jrtx.com.br\/blog\/wp-content\/uploads\/2026\/04\/ai-image-1777305623477.jpg","width":1024,"height":576,"caption":"Aula 5: nftables \u2014 o substituto moderno do iptables"},"datePublished":"2026-04-27T13:00:29-03:00","dateModified":"2026-04-27T13:00:29-03:00","inLanguage":"pt-BR","mainEntityOfPage":{"@id":"https:\/\/jrtx.com.br\/blog\/2026\/04\/27\/aula-5-nftables-o-substituto-moderno-do-iptables\/#webpage"},"isPartOf":{"@id":"https:\/\/jrtx.com.br\/blog\/2026\/04\/27\/aula-5-nftables-o-substituto-moderno-do-iptables\/#webpage"},"articleSection":"FIREWALL, configura\u00e7\u00e3o de nftables, nftables, substituto de iptables"},{"@type":"BreadcrumbList","@id":"https:\/\/jrtx.com.br\/blog\/2026\/04\/27\/aula-5-nftables-o-substituto-moderno-do-iptables\/#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/jrtx.com.br\/blog#listItem","position":1,"name":"Home","item":"https:\/\/jrtx.com.br\/blog","nextItem":{"@type":"ListItem","@id":"https:\/\/jrtx.com.br\/blog\/category\/firewall\/#listItem","name":"FIREWALL"}},{"@type":"ListItem","@id":"https:\/\/jrtx.com.br\/blog\/category\/firewall\/#listItem","position":2,"name":"FIREWALL","item":"https:\/\/jrtx.com.br\/blog\/category\/firewall\/","nextItem":{"@type":"ListItem","@id":"https:\/\/jrtx.com.br\/blog\/2026\/04\/27\/aula-5-nftables-o-substituto-moderno-do-iptables\/#listItem","name":"Aula 5: nftables \u2014 o substituto moderno do iptables"},"previousItem":{"@type":"ListItem","@id":"https:\/\/jrtx.com.br\/blog#listItem","name":"Home"}},{"@type":"ListItem","@id":"https:\/\/jrtx.com.br\/blog\/2026\/04\/27\/aula-5-nftables-o-substituto-moderno-do-iptables\/#listItem","position":3,"name":"Aula 5: nftables \u2014 o substituto moderno do iptables","previousItem":{"@type":"ListItem","@id":"https:\/\/jrtx.com.br\/blog\/category\/firewall\/#listItem","name":"FIREWALL"}}]},{"@type":"Organization","@id":"https:\/\/jrtx.com.br\/blog\/#organization","name":"BLOG - JRT Technology Solutions","description":"Um espa\u00e7o dedicado a explorar o universo da tecnologia de forma clara, pr\u00e1tica e atual. Aqui voc\u00ea encontra novidades, an\u00e1lises, tutoriais e reflex\u00f5es sobre inova\u00e7\u00e3o, intelig\u00eancia artificial, gadgets, programa\u00e7\u00e3o e tend\u00eancias digitais. Nosso objetivo \u00e9 simplificar o complexo, ajudar voc\u00ea a se manter atualizado e transformar conhecimento em pr\u00e1tica no seu dia a dia.","url":"https:\/\/jrtx.com.br\/blog\/","telephone":"+552138277513","logo":{"@type":"ImageObject","url":"https:\/\/jrtx.com.br\/blog\/wp-content\/uploads\/2026\/03\/cropped-logo-mini.jpg","@id":"https:\/\/jrtx.com.br\/blog\/2026\/04\/27\/aula-5-nftables-o-substituto-moderno-do-iptables\/#organizationLogo","width":100,"height":75},"image":{"@id":"https:\/\/jrtx.com.br\/blog\/2026\/04\/27\/aula-5-nftables-o-substituto-moderno-do-iptables\/#organizationLogo"},"sameAs":["https:\/\/www.facebook.com\/profile.php?id=61590814880509","https:\/\/www.instagram.com\/jrtx.tech\/"]},{"@type":"Person","@id":"https:\/\/jrtx.com.br\/blog\/author\/thiago\/#author","url":"https:\/\/jrtx.com.br\/blog\/author\/thiago\/","name":"Thiago Paes Rodrigues","image":{"@type":"ImageObject","@id":"https:\/\/jrtx.com.br\/blog\/2026\/04\/27\/aula-5-nftables-o-substituto-moderno-do-iptables\/#authorImage","url":"https:\/\/secure.gravatar.com\/avatar\/3cdfdf5f766c59d9c9acab959751c31c3442acd94d4b2927c51d2a0c31b50822?s=96&d=mm&r=g","width":96,"height":96,"caption":"Thiago Paes Rodrigues"}},{"@type":"WebPage","@id":"https:\/\/jrtx.com.br\/blog\/2026\/04\/27\/aula-5-nftables-o-substituto-moderno-do-iptables\/#webpage","url":"https:\/\/jrtx.com.br\/blog\/2026\/04\/27\/aula-5-nftables-o-substituto-moderno-do-iptables\/","name":"Aula 5: nftables \u2014 o substituto moderno do iptables - BLOG - JRT Technology Solutions","description":"Descubra como o nftables moderniza o gerenciamento de firewall em nossa aula 5. Aprenda suas vantagens sobre o iptables e como configur\u00e1-lo.","inLanguage":"pt-BR","isPartOf":{"@id":"https:\/\/jrtx.com.br\/blog\/#website"},"breadcrumb":{"@id":"https:\/\/jrtx.com.br\/blog\/2026\/04\/27\/aula-5-nftables-o-substituto-moderno-do-iptables\/#breadcrumblist"},"author":{"@id":"https:\/\/jrtx.com.br\/blog\/author\/thiago\/#author"},"creator":{"@id":"https:\/\/jrtx.com.br\/blog\/author\/thiago\/#author"},"image":{"@type":"ImageObject","url":"https:\/\/jrtx.com.br\/blog\/wp-content\/uploads\/2026\/04\/ai-image-1777305623477.jpg","@id":"https:\/\/jrtx.com.br\/blog\/2026\/04\/27\/aula-5-nftables-o-substituto-moderno-do-iptables\/#mainImage","width":1024,"height":576,"caption":"Aula 5: nftables \u2014 o substituto moderno do iptables"},"primaryImageOfPage":{"@id":"https:\/\/jrtx.com.br\/blog\/2026\/04\/27\/aula-5-nftables-o-substituto-moderno-do-iptables\/#mainImage"},"datePublished":"2026-04-27T13:00:29-03:00","dateModified":"2026-04-27T13:00:29-03:00"},{"@type":"WebSite","@id":"https:\/\/jrtx.com.br\/blog\/#website","url":"https:\/\/jrtx.com.br\/blog\/","name":"BLOG - JRT Technology Solutions","description":"Um espa\u00e7o dedicado a explorar o universo da tecnologia de forma clara, pr\u00e1tica e atual. Aqui voc\u00ea encontra novidades, an\u00e1lises, tutoriais e reflex\u00f5es sobre inova\u00e7\u00e3o, intelig\u00eancia artificial, gadgets, programa\u00e7\u00e3o e tend\u00eancias digitais. Nosso objetivo \u00e9 simplificar o complexo, ajudar voc\u00ea a se manter atualizado e transformar conhecimento em pr\u00e1tica no seu dia a dia.","inLanguage":"pt-BR","publisher":{"@id":"https:\/\/jrtx.com.br\/blog\/#organization"}}]},"og:locale":"pt_BR","og:site_name":"BLOG - JRT Technology Solutions - Um espa\u00e7o dedicado a explorar o universo da tecnologia de forma clara, pr\u00e1tica e atual. Aqui voc\u00ea encontra novidades, an\u00e1lises, tutoriais e reflex\u00f5es sobre inova\u00e7\u00e3o, intelig\u00eancia artificial, gadgets, programa\u00e7\u00e3o e tend\u00eancias digitais. Nosso objetivo \u00e9 simplificar o complexo, ajudar voc\u00ea a se manter atualizado e transformar conhecimento em pr\u00e1tica no seu dia a dia.","og:type":"article","og:title":"Aula 5: nftables \u2014 o substituto moderno do iptables - BLOG - JRT Technology Solutions","og:description":"Descubra como o nftables moderniza o gerenciamento de firewall em nossa aula 5. Aprenda suas vantagens sobre o iptables e como configur\u00e1-lo.","og:url":"https:\/\/jrtx.com.br\/blog\/2026\/04\/27\/aula-5-nftables-o-substituto-moderno-do-iptables\/","og:image":"https:\/\/jrtx.com.br\/blog\/wp-content\/uploads\/2026\/03\/cropped-logo-mini.jpg","og:image:secure_url":"https:\/\/jrtx.com.br\/blog\/wp-content\/uploads\/2026\/03\/cropped-logo-mini.jpg","og:image:width":100,"og:image:height":75,"article:published_time":"2026-04-27T16:00:29+00:00","article:modified_time":"2026-04-27T16:00:29+00:00","article:publisher":"https:\/\/www.facebook.com\/profile.php?id=61590814880509","twitter:card":"summary_large_image","twitter:title":"Aula 5: nftables \u2014 o substituto moderno do iptables - BLOG - JRT Technology Solutions","twitter:description":"Descubra como o nftables moderniza o gerenciamento de firewall em nossa aula 5. Aprenda suas vantagens sobre o iptables e como configur\u00e1-lo.","twitter:image":"https:\/\/jrtx.com.br\/blog\/wp-content\/uploads\/2026\/03\/cropped-logo-mini.jpg"},"aioseo_meta_data":[],"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/jrtx.com.br\/blog\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/jrtx.com.br\/blog\/category\/firewall\/\" title=\"FIREWALL\">FIREWALL<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tAula 5: nftables \u2014 o substituto moderno do iptables\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/jrtx.com.br\/blog"},{"label":"FIREWALL","link":"https:\/\/jrtx.com.br\/blog\/category\/firewall\/"},{"label":"Aula 5: nftables \u2014 o substituto moderno do iptables","link":"https:\/\/jrtx.com.br\/blog\/2026\/04\/27\/aula-5-nftables-o-substituto-moderno-do-iptables\/"}],"_links":{"self":[{"href":"https:\/\/jrtx.com.br\/blog\/wp-json\/wp\/v2\/posts\/505","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jrtx.com.br\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jrtx.com.br\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jrtx.com.br\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jrtx.com.br\/blog\/wp-json\/wp\/v2\/comments?post=505"}],"version-history":[{"count":0,"href":"https:\/\/jrtx.com.br\/blog\/wp-json\/wp\/v2\/posts\/505\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jrtx.com.br\/blog\/wp-json\/wp\/v2\/media\/503"}],"wp:attachment":[{"href":"https:\/\/jrtx.com.br\/blog\/wp-json\/wp\/v2\/media?parent=505"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jrtx.com.br\/blog\/wp-json\/wp\/v2\/categories?post=505"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jrtx.com.br\/blog\/wp-json\/wp\/v2\/tags?post=505"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}