{"id":5220,"date":"2026-11-01T12:40:00","date_gmt":"2026-11-01T12:40:00","guid":{"rendered":"https:\/\/zynoo.com\/blog\/nginx-reverse-proxy-ubuntu\/"},"modified":"2026-11-01T12:45:51","modified_gmt":"2026-11-01T12:45:51","slug":"nginx-reverse-proxy-ubuntu","status":"publish","type":"post","link":"https:\/\/zynoo.com\/blog\/es\/nginx-reverse-proxy-ubuntu\/","title":{"rendered":"C\u00f3mo configurar un proxy inverso de Nginx en Ubuntu"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\" id=\"h-\">Un <strong>proxy inverso de Nginx<\/strong> recibe las solicitudes de los visitantes de un sitio web y las reenv\u00eda a otro servidor o aplicaci\u00f3n. Se utiliza habitualmente para hacer accesibles mediante un nombre de dominio las aplicaciones que se ejecutan en puertos como el 3000, sin exponer sus puertos internos a internet.<\/p>\n\n<p class=\"wp-block-paragraph\">En este tutorial, configurar\u00e1s Nginx en Ubuntu para reenviar solicitudes a una aplicaci\u00f3n local, conectar un dominio y activar HTTPS.<\/p>\n\n<h2 id=\"h-what-is-an-nginx-reverse-proxy\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%C2%BFQue_es_un_proxy_inverso_de_Nginx\"><\/span>\u00bfQu\u00e9 es un proxy inverso de Nginx?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p class=\"wp-block-paragraph\">Un proxy inverso se sit\u00faa entre los visitantes y la aplicaci\u00f3n backend.<\/p>\n\n<p class=\"wp-block-paragraph\">En lugar de conectarse directamente a una aplicaci\u00f3n que se ejecuta en el puerto 3000, los visitantes se conectan a Nginx a trav\u00e9s de los puertos HTTP o HTTPS est\u00e1ndar.<\/p>\n\n<p class=\"wp-block-paragraph\">Nginx reenv\u00eda la solicitud a la aplicaci\u00f3n y devuelve su respuesta.<\/p>\n\n<p class=\"wp-block-paragraph\">El flujo de solicitudes es el siguiente:<\/p>\n\n<p class=\"wp-block-paragraph\"><code>Visitante \u2192 Nginx \u2192 Aplicaci\u00f3n backend<\/code><\/p>\n\n<p class=\"wp-block-paragraph\">Esta configuraci\u00f3n se utiliza habitualmente con Node.js, Python y otras aplicaciones web. Tambi\u00e9n puede permitir la terminaci\u00f3n TLS, el balanceo de carga y la gesti\u00f3n centralizada de solicitudes.<\/p>\n\n<div style=\"background:linear-gradient(110deg,#06347d,#0862d8);border-radius:10px;padding:20px 24px;margin:28px 0;color:#fff;font-family:inherit\">\n  <div style=\"display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap\">\n    <div style=\"flex:1 1 230px\">\n      <div style=\"font-size:17px;font-weight:700;line-height:1.4;margin-bottom:5px\">\n        \u00bfNecesitas un VPS para tu configuraci\u00f3n de Nginx?\n      <\/div>\n      <div style=\"font-size:13px;line-height:1.6;color:#e1edff\">\n        Despliega tus aplicaciones con acceso root y recursos de servidor flexibles.\n      <\/div>\n    <\/div>\n    <a href=\"https:\/\/zynoo.com\/vps-hosting.html\" style=\"display:inline-block;background:#fff;color:#073b90;padding:11px 17px;border-radius:6px;font-size:13px;font-weight:700;text-decoration:none;white-space:nowrap\">\n      Explora los planes VPS \u2192\n    <\/a>\n  <\/div>\n<\/div>\n\n<h2 id=\"h-prerequisites\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Requisitos_previos\"><\/span>Requisitos previos<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p class=\"wp-block-paragraph\">Antes de empezar, necesitar\u00e1s:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Un servidor con Ubuntu 24.04 LTS y acceso sudo.<\/li>\n\n\n\n<li>Acceso SSH a tu servidor.<\/li>\n\n\n\n<li>Un nombre de dominio que apunte a la direcci\u00f3n IP p\u00fablica de tu servidor.<\/li>\n\n\n\n<li>Una aplicaci\u00f3n backend que escuche en un puerto local.<\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\">En este ejemplo, utilizaremos el puerto <code>3000<\/code>.<\/p>\n\n<p class=\"wp-block-paragraph\">Si no tienes experiencia con SSH, lee nuestra <a href=\"https:\/\/zynoo.com\/blog\/es\/ssh-commands\/\">gu\u00eda de comandos SSH para principiantes<\/a> antes de continuar.<\/p>\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/zynoo.com\/blog\/wp-content\/uploads\/2026\/11\/How-to-setup-Nginx-Reverse-Proxy-1024x576.webp\" alt=\"C\u00f3mo configurar un proxy inverso de Nginx\" class=\"wp-image-5191\" srcset=\"https:\/\/zynoo.com\/blog\/wp-content\/uploads\/2026\/11\/How-to-setup-Nginx-Reverse-Proxy-1024x576.webp 1024w, https:\/\/zynoo.com\/blog\/wp-content\/uploads\/2026\/11\/How-to-setup-Nginx-Reverse-Proxy-300x169.webp 300w, https:\/\/zynoo.com\/blog\/wp-content\/uploads\/2026\/11\/How-to-setup-Nginx-Reverse-Proxy-768x432.webp 768w, https:\/\/zynoo.com\/blog\/wp-content\/uploads\/2026\/11\/How-to-setup-Nginx-Reverse-Proxy-1536x864.webp 1536w, https:\/\/zynoo.com\/blog\/wp-content\/uploads\/2026\/11\/How-to-setup-Nginx-Reverse-Proxy.webp 1672w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<h2 id=\"h-step-1-install-nginx-on-ubuntu\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Paso_1_Instala_Nginx_en_Ubuntu\"><\/span>Paso 1: Instala Nginx en Ubuntu<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p class=\"wp-block-paragraph\">Con\u00e9ctate a tu servidor <a href=\"https:\/\/zynoo.com\/blog\/es\/debian-vs-ubuntu-vps\/\">Ubuntu<\/a> mediante SSH.<\/p>\n\n<p class=\"wp-block-paragraph\">Actualiza el \u00edndice de paquetes e instala Nginx:<\/p>\n\n<pre class=\"wp-block-code\"><code>sudo apt update\nsudo apt install nginx -y<\/code><\/pre>\n\n<p class=\"wp-block-paragraph\">Comprueba si Nginx est\u00e1 en ejecuci\u00f3n:<\/p>\n\n<pre class=\"wp-block-code\"><code>sudo systemctl status nginx<\/code><\/pre>\n\n<p class=\"wp-block-paragraph\">Deber\u00edas ver <code>active (running)<\/code>.<\/p>\n\n<p class=\"wp-block-paragraph\">Si Nginx no se ha iniciado, ejecuta:<\/p>\n\n<pre class=\"wp-block-code\"><code>sudo systemctl enable --now nginx<\/code><\/pre>\n\n<p class=\"wp-block-paragraph\">Tambi\u00e9n puedes visitar la direcci\u00f3n IP p\u00fablica de tu servidor en un navegador. Si se permite el acceso HTTP, deber\u00eda aparecer la p\u00e1gina de bienvenida predeterminada de Nginx.<\/p>\n\n<p class=\"wp-block-paragraph\">Si utilizas UFW, permite el tr\u00e1fico HTTP y HTTPS:<\/p>\n\n<pre class=\"wp-block-code\"><code>sudo ufw allow 'Nginx Full'<\/code><\/pre>\n\n<p class=\"wp-block-paragraph\">Comprueba tambi\u00e9n las reglas de cortafuegos configuradas a trav\u00e9s de tu proveedor de alojamiento. No desactives el cortafuegos para permitir el acceso a Nginx.<\/p>\n\n<h2 id=\"h-step-2-start-a-test-backend-application\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Paso_2_Inicia_una_aplicacion_backend_de_prueba\"><\/span>Paso 2: Inicia una aplicaci\u00f3n backend de prueba<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p class=\"wp-block-paragraph\">Antes de configurar el proxy inverso, necesitamos una aplicaci\u00f3n a la que Nginx pueda reenviar las solicitudes.<\/p>\n\n<p class=\"wp-block-paragraph\">Para hacer una prueba sencilla, crea un directorio temporal:<\/p>\n\n<pre class=\"wp-block-code\"><code>mkdir -p ~\/nginx-proxy-test\ncd ~\/nginx-proxy-test<\/code><\/pre>\n\n<p class=\"wp-block-paragraph\">Crea una p\u00e1gina HTML b\u00e1sica:<\/p>\n\n<pre class=\"wp-block-code\"><code>echo '&lt;h1&gt;Nginx Reverse Proxy Works!&lt;\/h1&gt;' &gt; index.html<\/code><\/pre>\n\n<p class=\"wp-block-paragraph\">Ahora inicia el servidor HTTP integrado de Python:<\/p>\n\n<pre class=\"wp-block-code\"><code>python3 -m http.server 3000 --bind 127.0.0.1<\/code><\/pre>\n\n<p class=\"wp-block-paragraph\">Esto sirve tu p\u00e1gina de prueba en el puerto 3000, accesible \u00fanicamente a trav\u00e9s de la direcci\u00f3n local de loopback.<\/p>\n\n<p class=\"wp-block-paragraph\">Deja esta terminal en ejecuci\u00f3n y abre una segunda sesi\u00f3n SSH.<\/p>\n\n<p class=\"wp-block-paragraph\">Comprueba que la aplicaci\u00f3n responde:<\/p>\n\n<pre class=\"wp-block-code\"><code>curl http:\/\/127.0.0.1:3000<\/code><\/pre>\n\n<p class=\"wp-block-paragraph\">Deber\u00edas ver:<\/p>\n\n<pre class=\"wp-block-code\"><code>&lt;h1&gt;Nginx Reverse Proxy Works!&lt;\/h1&gt;<\/code><\/pre>\n\n<p class=\"wp-block-paragraph\">Este servidor de Python es solo para la demostraci\u00f3n. Para una aplicaci\u00f3n en producci\u00f3n, utiliza el servidor de aplicaciones y la configuraci\u00f3n de gesti\u00f3n de servicios recomendados para ella.<\/p>\n\n<h2 id=\"h-step-3-create-an-nginx-reverse-proxy-configuration\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Paso_3_Crea_una_configuracion_de_proxy_inverso_de_Nginx\"><\/span>Paso 3: Crea una configuraci\u00f3n de proxy inverso de Nginx<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p class=\"wp-block-paragraph\">Crea un nuevo bloque de servidor de Nginx:<\/p>\n\n<pre class=\"wp-block-code\"><code>sudo nano \/etc\/nginx\/sites-available\/app.example.com<\/code><\/pre>\n\n<p class=\"wp-block-paragraph\">Sustituye <code>app.example.com<\/code> por tu dominio real.<\/p>\n\n<p class=\"wp-block-paragraph\">A\u00f1ade la siguiente configuraci\u00f3n:<\/p>\n\n<pre class=\"wp-block-code\"><code>server {\n    listen 80;\n    server_name app.example.com;\n\n    location \/ {\n        proxy_pass http:\/\/127.0.0.1:3000;\n\n        proxy_set_header Host $host;\n        proxy_set_header X-Real-IP $remote_addr;\n        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;\n        proxy_set_header X-Forwarded-Proto $scheme;\n    }\n}<\/code><\/pre>\n\n<p class=\"wp-block-paragraph\">Guarda el archivo.<\/p>\n\n<h3 id=\"h-understanding-the-configuration\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Como_funciona_la_configuracion\"><\/span>C\u00f3mo funciona la configuraci\u00f3n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<ul class=\"wp-block-list\">\n<li><code>listen 80<\/code> acepta solicitudes HTTP.<\/li>\n\n\n\n<li><code>server_name<\/code> especifica el dominio que debe gestionar Nginx.<\/li>\n\n\n\n<li><code>proxy_pass<\/code> reenv\u00eda las solicitudes a la aplicaci\u00f3n en el puerto 3000.<\/li>\n\n\n\n<li><code>proxy_set_header<\/code> transmite al backend informaci\u00f3n \u00fatil sobre la solicitud original.<\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\">El backend debe interpretar y gestionar de forma segura las cabeceras reenviadas. Configura las aplicaciones para que conf\u00eden en estas cabeceras \u00fanicamente cuando las solicitudes lleguen a trav\u00e9s de tu proxy de confianza.<\/p>\n\n<h2 id=\"h-step-4-enable-and-test-the-configuration\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Paso_4_Activa_y_prueba_la_configuracion\"><\/span>Paso 4: Activa y prueba la configuraci\u00f3n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p class=\"wp-block-paragraph\">Activa el nuevo bloque de servidor:<\/p>\n\n<pre class=\"wp-block-code\"><code>sudo ln -s \/etc\/nginx\/sites-available\/app.example.com \/etc\/nginx\/sites-enabled\/<\/code><\/pre>\n\n<p class=\"wp-block-paragraph\">Si el enlace ya existe, no vuelvas a crearlo.<\/p>\n\n<p class=\"wp-block-paragraph\">Comprueba si hay errores en la configuraci\u00f3n:<\/p>\n\n<pre class=\"wp-block-code\"><code>sudo nginx -t<\/code><\/pre>\n\n<p class=\"wp-block-paragraph\">Si la prueba se completa correctamente, recarga Nginx:<\/p>\n\n<pre class=\"wp-block-code\"><code>sudo systemctl reload nginx<\/code><\/pre>\n\n<p class=\"wp-block-paragraph\">Ahora abre:<\/p>\n\n<p class=\"wp-block-paragraph\"><code>http:\/\/app.example.com<\/code><\/p>\n\n<p class=\"wp-block-paragraph\">Si el DNS apunta al servidor correcto y el backend de prueba sigue en ejecuci\u00f3n, deber\u00edas ver:<\/p>\n\n<p class=\"wp-block-paragraph\"><strong>\u00a1El proxy inverso de Nginx funciona!<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">Si aparece la p\u00e1gina predeterminada de Nginx, comprueba los registros DNS de tu dominio y la configuraci\u00f3n de <code>server_name<\/code>.<\/p>\n\n<h2 id=\"h-step-5-enable-https-with-let-s-encrypt\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Paso_5_Activa_HTTPS_con_Lets_Encrypt\"><\/span>Paso 5: Activa HTTPS con Let&#8217;s Encrypt<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p class=\"wp-block-paragraph\">Para un sitio web p\u00fablico, utiliza HTTPS en lugar de dejar el tr\u00e1fico sin cifrar.<\/p>\n\n<p class=\"wp-block-paragraph\">Primero, confirma que tu dominio resuelve a la direcci\u00f3n del servidor correcto y que el puerto 80 permite conexiones entrantes. Esto es importante para el proceso est\u00e1ndar de validaci\u00f3n de certificados mediante HTTP.<\/p>\n\n<p class=\"wp-block-paragraph\">Instala Certbot mediante el m\u00e9todo oficial basado en Snap:<\/p>\n\n<pre class=\"wp-block-code\"><code>sudo snap install --classic certbot<\/code><\/pre>\n\n<p class=\"wp-block-paragraph\">Si el comando <code>certbot<\/code> a\u00fan no est\u00e1 disponible, crea el enlace para el comando:<\/p>\n\n<pre class=\"wp-block-code\"><code>sudo ln -s \/snap\/bin\/certbot \/usr\/local\/bin\/certbot<\/code><\/pre>\n\n<p class=\"wp-block-paragraph\">A continuaci\u00f3n, solicita un certificado:<\/p>\n\n<pre class=\"wp-block-code\"><code>sudo certbot --nginx -d app.example.com<\/code><\/pre>\n\n<p class=\"wp-block-paragraph\">Sigue las indicaciones. Certbot puede obtener un certificado y configurar Nginx para servir tu dominio mediante HTTPS.<\/p>\n\n<p class=\"wp-block-paragraph\">Despu\u00e9s, prueba la renovaci\u00f3n del certificado:<\/p>\n\n<pre class=\"wp-block-code\"><code>sudo certbot renew --dry-run<\/code><\/pre>\n\n<p class=\"wp-block-paragraph\">Visita:<\/p>\n\n<pre class=\"wp-block-code\"><code>https:&#047;&#047;app.example.com<\/code><\/pre>\n\n<p class=\"wp-block-paragraph\">Tu aplicaci\u00f3n de prueba deber\u00eda cargarse ahora mediante una conexi\u00f3n cifrada.<\/p>\n\n<h2 id=\"h-step-6-verify-your-reverse-proxy\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Paso_6_Comprueba_tu_proxy_inverso\"><\/span>Paso 6: Comprueba tu proxy inverso<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p class=\"wp-block-paragraph\">Comprueba la respuesta HTTPS:<\/p>\n\n<pre class=\"wp-block-code\"><code>curl -I https:\/\/app.example.com<\/code><\/pre>\n\n<p class=\"wp-block-paragraph\">En el caso del backend de ejemplo en Python, una respuesta HTTP <code>200 OK<\/code> indica que la solicitud ha llegado correctamente a la aplicaci\u00f3n.<\/p>\n\n<p class=\"wp-block-paragraph\">Tambi\u00e9n puedes comprobar qu\u00e9 procesos est\u00e1n escuchando en tu servidor:<\/p>\n\n<pre class=\"wp-block-code\"><code>sudo ss -ltnp<\/code><\/pre>\n\n<p class=\"wp-block-paragraph\">Tu instalaci\u00f3n de Nginx deber\u00eda escuchar en los puertos p\u00fablicos HTTP y HTTPS configurados, mientras que el backend de ejemplo escucha en <code>127.0.0.1:3000<\/code>.<\/p>\n\n<p class=\"wp-block-paragraph\">Recuerda que el servidor temporal de Python se detendr\u00e1 cuando cierres su sesi\u00f3n de terminal. Las aplicaciones en producci\u00f3n deben ejecutarse bajo un supervisor de procesos como systemd.<\/p>\n\n<h2 id=\"h-common-nginx-reverse-proxy-problems\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Problemas_habituales_con_el_proxy_inverso_de_Nginx\"><\/span>Problemas habituales con el proxy inverso de Nginx<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<h3 id=\"h-502-bad-gateway\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"502_Bad_Gateway\"><\/span>502 Bad Gateway<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p class=\"wp-block-paragraph\">Esto suele significar que Nginx no ha podido recibir una respuesta v\u00e1lida del backend.<\/p>\n\n<p class=\"wp-block-paragraph\">Comprueba que tu aplicaci\u00f3n est\u00e9 en ejecuci\u00f3n y que el puerto indicado en <code>proxy_pass<\/code> sea correcto.<\/p>\n\n<div class=\"wp-block-group zynoo-related-reading has-border-color has-text-color has-background is-layout-flow wp-block-group-is-layout-flow\" style=\"border-color:#c7d8ef;border-width:1px;border-radius:8px;border-left-color:#0069ff;border-left-width:3px;color:#24364f;background-color:#eaf2ff;margin-top:28px;margin-bottom:28px;padding-top:18px;padding-right:22px;padding-bottom:18px;padding-left:22px;font-size:16px;line-height:1.8\">\n<p class=\"wp-block-paragraph\"><strong>Nuestra gu\u00eda<\/strong> sobre <a href=\"https:\/\/zynoo.com\/blog\/es\/502-bad-gateway-nginx\/\">c\u00f3mo solucionar el error 502 Bad Gateway en Nginx<\/a> explica con m\u00e1s detalle los registros, los servicios upstream y los problemas de conexi\u00f3n.<\/p>\n<\/div>\n\n<h3 id=\"h-504-gateway-timeout\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"504_Gateway_Timeout\"><\/span>504 Gateway Timeout<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p class=\"wp-block-paragraph\">El error 504 se produce cuando la puerta de enlace no recibe a tiempo la respuesta necesaria del servidor upstream.<\/p>\n\n<p class=\"wp-block-paragraph\">Investiga las solicitudes lentas de la aplicaci\u00f3n y el rendimiento del backend antes de aumentar los tiempos de espera.<\/p>\n\n<div class=\"wp-block-group zynoo-related-reading has-border-color has-text-color has-background is-layout-flow wp-block-group-is-layout-flow\" style=\"border-color:#c7d8ef;border-width:1px;border-radius:8px;border-left-color:#0069ff;border-left-width:3px;color:#24364f;background-color:#eaf2ff;margin-top:28px;margin-bottom:28px;padding-top:18px;padding-right:22px;padding-bottom:18px;padding-left:22px;font-size:16px;line-height:1.8\">\n<p class=\"wp-block-paragraph\"><strong>Consulta nuestra<\/strong> <a href=\"https:\/\/zynoo.com\/blog\/es\/504-gateway-timeout\/\">gu\u00eda para solucionar el error 504 Gateway Timeout<\/a> si necesitas m\u00e1s instrucciones.<\/p>\n<\/div>\n\n<h3 id=\"h-the-domain-doesn-t-load\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"El_dominio_no_carga\"><\/span>El dominio no carga<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p class=\"wp-block-paragraph\">Comprueba que el registro A de tu dominio apunte a la direcci\u00f3n IP p\u00fablica correcta, que los puertos correspondientes est\u00e9n abiertos en el cortafuegos y que el bloque de servidor de Nginx coincida con el nombre de host solicitado.<\/p>\n\n<h2 id=\"h-frequently-asked-questions\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Preguntas_frecuentes\"><\/span>Preguntas frecuentes<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1793536198078\"><strong class=\"schema-faq-question\">\u00bfQu\u00e9 es proxy_pass en Nginx?<\/strong> <p class=\"schema-faq-answer\">proxy_pass indica a Nginx ad\u00f3nde debe reenviar las solicitudes, por ejemplo, a una aplicaci\u00f3n HTTP que se ejecuta en 127.0.0.1:3000.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1793536226833\"><strong class=\"schema-faq-question\">\u00bfPuede Nginx actuar como proxy inverso para varias aplicaciones?<\/strong> <p class=\"schema-faq-answer\">S\u00ed. Puedes configurar distintos dominios, subdominios o rutas URL para reenviar las solicitudes a diferentes aplicaciones backend.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1793536270612\"><strong class=\"schema-faq-question\">\u00bfNecesito un dominio para un proxy inverso de Nginx?<\/strong> <p class=\"schema-faq-answer\">No. Puedes probar un proxy inverso con una direcci\u00f3n IP o de forma local. Sin embargo, un dominio facilita el alojamiento p\u00fablico y la obtenci\u00f3n de un certificado HTTPS est\u00e1ndar.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1793536281086\"><strong class=\"schema-faq-question\">\u00bfEs gratuito el proxy inverso de Nginx?<\/strong> <p class=\"schema-faq-answer\">S\u00ed. La versi\u00f3n de c\u00f3digo abierto de Nginx admite la funcionalidad de proxy inverso sin necesidad de una licencia comercial.<\/p> <\/div> <\/div>\n\n<h2 id=\"h-conclusion\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusi\u00f3n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p class=\"wp-block-paragraph\">Has configurado un proxy inverso de Nginx en Ubuntu, reenviado solicitudes a una aplicaci\u00f3n local y activado HTTPS.<\/p>\n\n<p class=\"wp-block-paragraph\">Puedes adaptar la misma configuraci\u00f3n b\u00e1sica para Node.js, <a href=\"https:\/\/www.python.org\/downloads\/\">Python<\/a> y otras aplicaciones basadas en HTTP actualizando la direcci\u00f3n del backend en <code>proxy_pass<\/code>.<\/p>\n\n<p class=\"wp-block-paragraph\">Antes de utilizar esta configuraci\u00f3n en producci\u00f3n, aseg\u00farate de que tu aplicaci\u00f3n se inicie autom\u00e1ticamente, se ejecute con los permisos adecuados y cuente con medidas suficientes de monitorizaci\u00f3n y seguridad.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Un proxy inverso de Nginx recibe las solicitudes de los visitantes de un sitio web y las reenv\u00eda a otro servidor o aplicaci\u00f3n. Se utiliza habitualmente para hacer accesibles mediante un nombre de dominio las aplicaciones que se ejecutan en puertos como el 3000, sin exponer sus puertos internos a internet. En este tutorial, configurar\u00e1s [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5221,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[507],"tags":[376],"class_list":["post-5220","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutoriales-linux","tag-como-hacerlo"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v28.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>C\u00f3mo configurar un proxy inverso de Nginx en Ubuntu<\/title>\n<meta name=\"description\" content=\"Aprende a configurar un proxy inverso de Nginx en Ubuntu, definir proxy_pass, conectar tu dominio, activar HTTPS y probar tu aplicaci\u00f3n.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zynoo.com\/blog\/es\/nginx-reverse-proxy-ubuntu\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C\u00f3mo configurar un proxy inverso de Nginx en Ubuntu\" \/>\n<meta property=\"og:description\" content=\"Aprende a configurar un proxy inverso de Nginx en Ubuntu, definir proxy_pass, conectar tu dominio, activar HTTPS y probar tu aplicaci\u00f3n.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/zynoo.com\/blog\/es\/nginx-reverse-proxy-ubuntu\/\" \/>\n<meta property=\"og:site_name\" content=\"ZYNOO Blog\" \/>\n<meta property=\"article:published_time\" content=\"2026-11-01T12:40:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-11-01T12:45:51+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/zynoo.com\/blog\/wp-content\/uploads\/2026\/11\/Nginx-Reverse-Proxy.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1672\" \/>\n\t<meta property=\"og:image:height\" content=\"941\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"Jamie Collins\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jamie Collins\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tiempo de lectura\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"TechArticle\",\"@id\":\"https:\\\/\\\/zynoo.com\\\/blog\\\/es\\\/nginx-reverse-proxy-ubuntu\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/zynoo.com\\\/blog\\\/es\\\/nginx-reverse-proxy-ubuntu\\\/\"},\"author\":{\"name\":\"Jamie Collins\",\"@id\":\"https:\\\/\\\/zynoo.com\\\/blog\\\/es\\\/#\\\/schema\\\/person\\\/075b85b8be75fb370da34891a96e7eba\"},\"headline\":\"C\u00f3mo 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Puedes configurar distintos dominios, subdominios o rutas URL para reenviar las solicitudes a diferentes aplicaciones backend.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/zynoo.com\/blog\/es\/nginx-reverse-proxy-ubuntu\/#faq-question-1793536270612","position":3,"url":"https:\/\/zynoo.com\/blog\/es\/nginx-reverse-proxy-ubuntu\/#faq-question-1793536270612","name":"\u00bfNecesito un dominio para un proxy inverso de Nginx?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"No. Puedes probar un proxy inverso con una direcci\u00f3n IP o de forma local. 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