{"id":2861,"date":"2026-02-03T06:59:12","date_gmt":"2026-02-03T09:59:12","guid":{"rendered":"https:\/\/helpsysadmin.com.br\/blog\/?p=2861"},"modified":"2026-02-03T06:59:16","modified_gmt":"2026-02-03T09:59:16","slug":"ansible-setup-inicial-servidor","status":"publish","type":"post","link":"https:\/\/helpsysadmin.com.br\/blog\/ansible-setup-inicial-servidor\/","title":{"rendered":"Ansible para Sysadmins: Setup e Hardening de Servidor em 5 Minutos"},"content":{"rendered":"<div id=\"helps-3291470755\" class=\"helps-before-content-2 helps-entity-placement\"><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3661896953164277\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<!-- 2anuncios display quadrado -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-3661896953164277\"\r\n     data-ad-slot=\"5051229894\"\r\n     data-ad-format=\"auto\"\r\n     data-full-width-responsive=\"true\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n<p>Ansible para sysadmins<strong> . <\/strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/configurar-login-automatico-phpmyadmin\/\" data-internallinksmanager029f6b8e52c=\"3\" title=\"Como Configurar Login Autom\u00e1tico no phpMyAdmin via DirectAdmin\">Configurar<\/a> um servidor <strong>do zero<\/strong>, do jeito certo, costuma ser repetitivo, demorado e propenso a erro humano. Agora multiplique isso por 5, 10 ou 50 servidores\u2026 \ud83d\udc80<\/p>\n\n\n\n<p>\u00c9 exatamente aqui que o <strong>Ansible<\/strong> brilha.<\/p>\n\n\n\n<p>Neste artigo voc\u00ea vai aprender, de forma <strong>pr\u00e1tica e direta<\/strong>, como criar um <strong>playbook \u00fanico<\/strong> para:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Atualizar o sistema<\/li>\n\n\n\n<li>Criar usu\u00e1rio administrativo<\/li>\n\n\n\n<li>Proteger o SSH<\/li>\n\n\n\n<li>Ativar firewall<\/li>\n\n\n\n<li>Aplicar hardening b\u00e1sico<\/li>\n\n\n\n<li>Funcionar tanto em <strong>AlmaLinux<\/strong> quanto em <strong>Ubuntu<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Tudo isso em <strong>menos de 5 minutos<\/strong>, com execu\u00e7\u00e3o idempotente e reproduz\u00edvel.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-por-que-ansible-e-a-ferramenta-ideal-para-setup-inicial\">Por que Ansible \u00e9 a ferramenta ideal para setup inicial<\/h2>\n\n\n\n<p>Para sysadmins, Ansible resolve tr\u00eas dores cl\u00e1ssicas:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Padroniza\u00e7\u00e3o<\/strong> \u2013 todo servidor nasce igual<\/li>\n\n\n\n<li><strong>Velocidade<\/strong> \u2013 setup completo com um comando<\/li>\n\n\n\n<li><strong>Seguran\u00e7a<\/strong> \u2013 hardening aplicado desde o primeiro boot<\/li>\n<\/ol>\n\n\n\n<p>E o melhor: <strong>n\u00e3o precisa de agente<\/strong> no servidor.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-cenario-do-playbook\">Cen\u00e1rio do playbook<\/h2>\n\n\n\n<p>Este playbook faz o seguinte:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Atualiza pacotes<\/li>\n\n\n\n<li>Cria usu\u00e1rio <code>sysadmin<\/code><\/li>\n\n\n\n<li>Configura sudo sem senha (opcional)<\/li>\n\n\n\n<li>Endurece o SSH<\/li>\n\n\n\n<li>Ativa firewall (UFW ou Firewalld)<\/li>\n\n\n\n<li>Bloqueia login root via SSH<\/li>\n\n\n\n<li>Funciona em AlmaLinux 8\/9 e Ubuntu 20.04+<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-estrutura-do-projeto\">Estrutura do projeto<\/h2>\n\n\n\n<p>ansible-setup\/<br>\u251c\u2500\u2500<br>\u251c\u2500\u2500 setup.yml<br>\u2514\u2500\u2500 vars.yml<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-inventory-inventory-ini\">Inventory ( inventory.ini )<\/h2>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-codemirror-blocks-code-block code-block\"><pre>[servers]\nserver1 ansible_host=IP_DO_SERVIDOR\nserver2 ansible_host=IP_DO_SERVIDOR2\nserver3 ansible_host=IP_DO_SERVIDOR3<\/pre><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-variaveis-globais-vars-yml\">Vari\u00e1veis globais (vars.yml)<\/h2>\n\n\n\n<div class=\"wp-block-codemirror-blocks-code-block code-block\"><pre>admin_user: sysadmin\nssh_port: 2222\nallow_password_auth: false<\/pre><\/div>\n\n\n\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-playbook-principal-setup-yml\">Playbook principal (setup.yml)<\/h2>\n\n\n\n<div class=\"wp-block-codemirror-blocks-code-block code-block\"><pre>- name: Setup inicial e hardening\nhosts: servers\nbecome: yes\nvars_files:\n- vars.yml\n\n\ntasks:\n\n\n- name: Atualizar pacotes (Debian)\napt:\nupdate_cache: yes\nupgrade: dist\nwhen: ansible_os_family == &quot;Debian&quot;\n\n\n- name: Atualizar pacotes (RedHat)\ndnf:\nname: '*'\nstate: latest\nwhen: ansible_os_family == &quot;RedHat&quot;\n\n\n- name: Criar usu\u00e1rio admin\nuser:\nname: &quot;{{ admin_user }}&quot;\ngroups: wheel,sudo\nshell: \/bin\/bash\ncreate_home: yes\n\n\n- name: Autorizar sudo sem senha\ncopy:\ndest: &quot;\/etc\/sudoers.d\/{{ admin_user }}&quot;\ncontent: &quot;{{ admin_user }} ALL=(ALL) NOPASSWD:ALL&quot;\nmode: 0440\n\n\n- name: Configurar SSH\nlineinfile:\npath: \/etc\/ssh\/sshd_config\nregexp: &quot;{{ item.regexp }}&quot;\nline: &quot;{{ item.line }}&quot;\nloop:\n- { regexp: '^#?Port', line: 'Port {{ ssh_port }}' }\n- { regexp: '^#?PermitRootLogin', line: 'PermitRootLogin no' }\n- { regexp: '^#?PasswordAuthentication', line: 'PasswordAuthentication no' }\n\n\n- name: Reiniciar SSH\nservice:\nname: sshd\nstate: restarted\n\n\n- name: Ativar firewall (UFW)\nufw:\nrule: allow\nport: &quot;{{ ssh_port }}&quot;\nwhen: ansible_os_family == &quot;Debian&quot;\n\n\n- name: Ativar firewall (Firewalld)\nfirewalld:\nport: &quot;{{ ssh_port }}\/tcp&quot;\npermanent: yes\nstate: enabled\nwhen: ansible_os_family == &quot;RedHat&quot;<\/pre><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-execucao\">Execu\u00e7\u00e3o<\/h2>\n\n\n\n<div class=\"wp-block-codemirror-blocks-code-block code-block\"><pre>ansible-playbook -i inventory.ini setup.yml<\/pre><\/div>\n\n\n\n<p>Em <strong>menos de 5 minutos<\/strong>, o servidor estar\u00e1:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Atualizado<\/li>\n\n\n\n<li>Protegido<\/li>\n\n\n\n<li>Padronizado<\/li>\n\n\n\n<li>Pronto para produ\u00e7\u00e3o<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-boas-praticas-para-producao\">Boas pr\u00e1ticas para produ\u00e7\u00e3o<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ud83d\udd11 Use <strong>SSH por chave<\/strong>, nunca senha<\/li>\n\n\n\n<li>\ud83d\udd01 Versione seus playbooks (Git)<\/li>\n\n\n\n<li>\ud83e\uddea Teste em VM antes de rodar em produ\u00e7\u00e3o<\/li>\n\n\n\n<li>\ud83d\udce6 Separe roles conforme o ambiente crescer<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-quando-este-setup-nao-e-suficiente\">Quando este setup N\u00c3O \u00e9 suficiente<\/h2>\n\n\n\n<p>Este playbook \u00e9 ideal para <strong>baseline de seguran\u00e7a<\/strong>, mas n\u00e3o substitui:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>CIS Benchmark completo<\/li>\n\n\n\n<li>Hardening de kernel<\/li>\n\n\n\n<li>Auditoria com Lynis\/OpenSCAP<\/li>\n<\/ul>\n\n\n\n<p>Ele \u00e9 o <strong>primeiro passo<\/strong>, n\u00e3o o \u00faltimo.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-conclusao\">Conclus\u00e3o<\/h2>\n\n\n\n<p>Se voc\u00ea ainda faz setup manual de servidor em 2026, voc\u00ea est\u00e1:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Perdendo tempo<\/li>\n\n\n\n<li>Introduzindo inconsist\u00eancia<\/li>\n\n\n\n<li>Assumindo riscos desnecess\u00e1rios<\/li>\n<\/ul>\n\n\n\n<p>Com Ansible, <strong>o servidor j\u00e1 nasce certo<\/strong>.<\/p>\n\n\n\n<p>Automatize cedo. Automatize sempre.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ansible para sysadmins . Configurar um servidor do zero, do jeito certo, costuma ser repetitivo, demorado e propenso a erro humano. Agora [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":2862,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9,1279,1921,89],"tags":[90,2508,2512,2514,2314,2518,2524,2520,2516,2310,2522],"class_list":["post-2861","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gerenciamento-servidor","category-linux","category-rede","category-seguranca-do-servidor","tag-almalinux","tag-ansible","tag-ansible-para-sysadmins","tag-automacao-de-servidores","tag-devops","tag-hardening-linux","tag-infraestrutura-como-codigo","tag-seguranca-linux","tag-setup-inicial-de-servidor","tag-sysadmin","tag-ubuntu-server"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.5 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Ansible para Sysadmins: Setup e Hardening de Servidor em 5 Minutos<\/title>\n<meta name=\"description\" content=\"Automatize o setup inicial de servidores AlmaLinux e Ubuntu com Ansible. 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