{"id":4265,"date":"2024-11-22T12:52:16","date_gmt":"2024-11-22T11:52:16","guid":{"rendered":"https:\/?p=4265"},"modified":"2024-11-22T13:44:53","modified_gmt":"2024-11-22T12:44:53","slug":"guia-para-instalar-y-configurar-openssh-en-debian-linux-12","status":"publish","type":"post","link":"https:\/\/javiercachon.com\/es\/guia-para-instalar-y-configurar-openssh-en-debian-linux-12\/","title":{"rendered":"Gu\u00eda para instalar y configurar OpenSSH en Debian Linux 12."},"content":{"rendered":"\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"http:\/\/javiercachon.com\/wp-content\/uploads\/2024\/11\/hq720-2-1024x576.jpg\" alt=\"\" class=\"wp-image-4267\" style=\"width:1200px;height:auto\" srcset=\"https:\/\/javiercachon.com\/wp-content\/uploads\/2024\/11\/hq720-2-1024x576.jpg 1024w, https:\/\/javiercachon.com\/wp-content\/uploads\/2024\/11\/hq720-2-300x169.jpg 300w, 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xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/javiercachon.com\/es\/guia-para-instalar-y-configurar-openssh-en-debian-linux-12\/#%C2%BFQue_es_SSH\" >\u00bfQu\u00e9 es SSH?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/javiercachon.com\/es\/guia-para-instalar-y-configurar-openssh-en-debian-linux-12\/#%C2%BFQue_es_OpenSSH\" >\u00bfQu\u00e9 es OpenSSH?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/javiercachon.com\/es\/guia-para-instalar-y-configurar-openssh-en-debian-linux-12\/#OpenSSH_Server_y_OpenSSH_Client\" >OpenSSH Server y OpenSSH Client<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/javiercachon.com\/es\/guia-para-instalar-y-configurar-openssh-en-debian-linux-12\/#Caracteristicas_de_OpenSSH\" >Caracter\u00edsticas de OpenSSH<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/javiercachon.com\/es\/guia-para-instalar-y-configurar-openssh-en-debian-linux-12\/#Ventajas_de_OpenSSH\" >Ventajas de OpenSSH<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/javiercachon.com\/es\/guia-para-instalar-y-configurar-openssh-en-debian-linux-12\/#Instalacion_de_OpenSSH_en_Debian_12\" >Instalaci\u00f3n de OpenSSH en Debian 12<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/javiercachon.com\/es\/guia-para-instalar-y-configurar-openssh-en-debian-linux-12\/#Instalar_OpenSSH_Server_en_Debian_12\" >Instalar OpenSSH Server en Debian 12<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/javiercachon.com\/es\/guia-para-instalar-y-configurar-openssh-en-debian-linux-12\/#Instalar_OpenSSH_Client_en_Debian_12\" >Instalar OpenSSH Client en Debian 12<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/javiercachon.com\/es\/guia-para-instalar-y-configurar-openssh-en-debian-linux-12\/#Configuracion_basica_de_OpenSSH\" >Configuraci\u00f3n b\u00e1sica de OpenSSH<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/javiercachon.com\/es\/guia-para-instalar-y-configurar-openssh-en-debian-linux-12\/#Seguridad_adicional_opcional\" >Seguridad adicional (opcional)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/javiercachon.com\/es\/guia-para-instalar-y-configurar-openssh-en-debian-linux-12\/#Para_saber_la_direccion_IP_o_el_nombre_del_servidor_en_Debian_12\" >Para saber la direcci\u00f3n IP o el nombre del servidor en&nbsp;Debian 12<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/javiercachon.com\/es\/guia-para-instalar-y-configurar-openssh-en-debian-linux-12\/#Comprobar_el_entorno_LAMP_y_SSH\" >Comprobar el entorno LAMP y SSH.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/javiercachon.com\/es\/guia-para-instalar-y-configurar-openssh-en-debian-linux-12\/#Conclusion\" >Conclusi\u00f3n<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%C2%BFQue_es_SSH\"><\/span><strong>\u00bfQu\u00e9 es SSH?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>SSH (Secure Shell) es un protocolo de red que permite a los usuarios conectarse de forma segura a otros sistemas a trav\u00e9s de una red no segura. Proporciona:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Autenticaci\u00f3n segura<\/strong>&nbsp;(normalmente mediante contrase\u00f1as o claves).<\/li>\n\n\n\n<li><strong>Cifrado de datos<\/strong>, evitando que la informaci\u00f3n pueda ser interceptada.<\/li>\n\n\n\n<li><strong>Acceso remoto<\/strong>&nbsp;a sistemas y la posibilidad de ejecutar comandos como si estuvieras en el equipo remoto.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%C2%BFQue_es_OpenSSH\"><\/span><strong>\u00bfQu\u00e9 es OpenSSH?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>OpenSSH es una implementaci\u00f3n libre y de c\u00f3digo abierto del protocolo SSH. Es una herramienta ampliamente utilizada en sistemas Unix\/Linux para conexiones seguras entre equipos.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"OpenSSH_Server_y_OpenSSH_Client\"><\/span><strong>OpenSSH Server y OpenSSH Client<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>OpenSSH Server<\/strong>: Permite que otros equipos se conecten de manera remota al sistema donde est\u00e1 instalado. Es el componente que recibe las conexiones SSH.<\/li>\n\n\n\n<li><strong>OpenSSH Client<\/strong>: Es el programa usado para iniciar una conexi\u00f3n remota desde tu equipo hacia otro sistema que tiene configurado un servidor SSH.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Caracteristicas_de_OpenSSH\"><\/span><strong>Caracter\u00edsticas de OpenSSH<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Cifrado robusto<\/strong>: Utiliza algoritmos de cifrado modernos como AES, ChaCha20, y RSA.<\/li>\n\n\n\n<li><strong>Autenticaci\u00f3n segura<\/strong>: Compatible con contrase\u00f1as, claves SSH y m\u00e9todos avanzados como autenticaci\u00f3n de dos factores.<\/li>\n\n\n\n<li><strong>T\u00faneles seguros<\/strong>: Soporta t\u00faneles TCP\/IP y reenv\u00edo de puertos para acceder a servicios internos de manera segura.<\/li>\n\n\n\n<li><strong>Compatibilidad amplia<\/strong>: Funciona en diversas plataformas, como Linux, Windows y macOS.<\/li>\n\n\n\n<li><strong>Extensibilidad<\/strong>: Soporta m\u00f3dulos adicionales y personalizaci\u00f3n.<\/li>\n\n\n\n<li><strong>Herramientas integradas<\/strong>: Como&nbsp;<code class=\"\" data-line=\"\">scp<\/code>&nbsp;y&nbsp;<code class=\"\" data-line=\"\">sftp<\/code>&nbsp;para transferir archivos de manera segura.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ventajas_de_OpenSSH\"><\/span><strong>Ventajas de OpenSSH<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Seguridad mejorada<\/strong>: Asegura conexiones remotas mediante cifrado.<\/li>\n\n\n\n<li><strong>Ligero y eficiente<\/strong>: Requiere pocos recursos del sistema.<\/li>\n\n\n\n<li><strong>Gratuito y de c\u00f3digo abierto<\/strong>: Sin costos de licencias.<\/li>\n\n\n\n<li><strong>Multiprop\u00f3sito<\/strong>: Conexi\u00f3n remota, transferencia de archivos y reenv\u00edo de puertos.<\/li>\n\n\n\n<li><strong>Configuraci\u00f3n flexible<\/strong>: Puedes personalizarlo seg\u00fan tus necesidades.<\/li>\n<\/ul>\n\n\n\n<p>Configurar un servidor&nbsp;<strong>SSH<\/strong>&nbsp;en un entorno&nbsp;<strong>LAMP<\/strong>&nbsp;(Linux, Apache, MySQL, PHP) implica instalar y configurar SSH junto con el stack LAMP en un sistema Linux.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Instalacion_de_OpenSSH_en_Debian_12\"><\/span><strong>Instalaci\u00f3n de OpenSSH en Debian 12<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Instalar_OpenSSH_Server_en_Debian_12\"><\/span><strong>Instalar OpenSSH Server en Debian 12<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><strong>Instalar el paquete del servidor OpenSSH<\/strong><br>Ejecuta el siguiente comando para instalar el servidor OpenSSH:<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ sudo apt install openssh-server\n<\/pre><\/div>\n\n\n<p><strong>Verificar el estado del servidor SSH<\/strong><br>Despu\u00e9s de la instalaci\u00f3n, verifica que el servicio est\u00e9 activo:<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ sudo systemctl status ssh\n<\/pre><\/div>\n\n\n<p>Si est\u00e1 en funcionamiento, deber\u00eda mostrar un estado como&nbsp;<em>active (running)<\/em>.<\/p>\n\n\n\n<p><strong>Si no est\u00e1 activo, puedes iniciarlo:<\/strong><\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ sudo systemctl start ssh\n<\/pre><\/div>\n\n\n<p><strong>Habilitar el servicio al inicio del sistema<\/strong><br>Para asegurarte de que el servicio SSH se inicie autom\u00e1ticamente cada vez que enciendas el sistema:<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ sudo systemctl enable ssh\n<\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Instalar_OpenSSH_Client_en_Debian_12\"><\/span><strong>Instalar OpenSSH Client en Debian 12<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>El cliente SSH suele estar instalado por defecto en Debian. Para asegurarte de que est\u00e1 disponible:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong><strong>Instalar el cliente SSH (si no est\u00e1 instalado)<\/strong><\/strong><\/li>\n<\/ol>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ sudo apt install openssh-client\n<\/pre><\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Configuracion_basica_de_OpenSSH\"><\/span><strong>Configuraci\u00f3n b\u00e1sica de OpenSSH<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Archivo de configuraci\u00f3n<\/strong><\/li>\n<\/ul>\n\n\n\n<p>El archivo principal de configuraci\u00f3n del servidor SSH es:<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n\/etc\/ssh\/sshd_config\n<\/pre><\/div>\n\n\n<p>Algunas configuraciones comunes:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Puerto del servicio (por defecto es el 22)<\/strong>: Cambia el puerto para mayor seguridad:<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nPort 2222\n<\/pre><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Permitir o denegar el acceso root<\/strong>: Es recomendable desactivar el acceso como root para mejorar la seguridad:<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nPermitRootLogin no\n<\/pre><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Usar autenticaci\u00f3n por claves en lugar de contrase\u00f1as<\/strong>: Configura esto a\u00f1adiendo:<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nPasswordAuthentication no\nPubkeyAuthentication yes\n<\/pre><\/div>\n\n\n<p>Aseg\u00farate de configurar claves p\u00fablicas antes de desactivar las contrase\u00f1as.<\/p>\n\n\n\n<p>Reinicia el servicio SSH para aplicar los cambios:<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ sudo systemctl restart ssh\n<\/pre><\/div>\n\n\n<p>\u00a1Con esto, habr\u00e1s configurado la autenticaci\u00f3n con claves p\u00fablicas!<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Configurar claves p\u00fablicas<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Configurar claves p\u00fablicas para autenticarse mediante SSH en Debian 12 implica generar un par de claves (p\u00fablica y privada) en el cliente y luego transferir la clave p\u00fablica al servidor. Esto elimina la necesidad de usar contrase\u00f1as para iniciar sesi\u00f3n y aumenta la seguridad<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>En el cliente (tu equipo local)<\/strong><\/h4>\n\n\n\n<p><strong>1. Generar un par de claves SSH<\/strong><\/p>\n\n\n\n<p>Abre una terminal y ejecuta el comando:<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ ssh-keygen -t rsa -b 4096\n<\/pre><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li><strong><code class=\"\" data-line=\"\">-t rsa<\/code><\/strong>: Especifica el tipo de clave (RSA en este caso).<\/li>\n\n\n\n<li><strong><code class=\"\" data-line=\"\">-b 4096<\/code><\/strong>: Define el tama\u00f1o de la clave en bits para mayor seguridad.<\/li>\n<\/ul>\n\n\n\n<p>El sistema te pedir\u00e1 una ubicaci\u00f3n para guardar las claves. Presiona&nbsp;<strong>Enter<\/strong>&nbsp;para usar la ubicaci\u00f3n predeterminada (<code class=\"\" data-line=\"\">~\/.ssh\/id_rsa<\/code>).<br>Tambi\u00e9n puedes establecer una&nbsp;<strong>contrase\u00f1a opcional<\/strong>&nbsp;para proteger la clave privada.<\/p>\n\n\n\n<p><strong>Verifica las claves generadas<\/strong><\/p>\n\n\n\n<p>El comando anterior crea dos archivos en el directorio&nbsp;<code class=\"\" data-line=\"\">~\/.ssh\/<\/code>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code class=\"\" data-line=\"\">id_rsa<\/code>: Tu clave privada (gu\u00e1rdala segura y no la compartas).<\/li>\n\n\n\n<li><code class=\"\" data-line=\"\">id_rsa.pub<\/code>: Tu clave p\u00fablica (se comparte con el servidor).<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>En el servidor SSH<\/strong><\/h4>\n\n\n\n<p><strong>1. Copiar la clave p\u00fablica al servidor<\/strong><\/p>\n\n\n\n<p>Utiliza el comando&nbsp;<code class=\"\" data-line=\"\">ssh-copy-id<\/code>&nbsp;para transferir tu clave p\u00fablica al servidor:<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ ssh-copy-id usuario@ip_del_servidor\n<\/pre><\/div>\n\n\n<p>Reemplaza&nbsp;<code class=\"\" data-line=\"\">usuario<\/code>&nbsp;con tu nombre de usuario en el servidor y&nbsp;<code class=\"\" data-line=\"\">ip_del_servidor<\/code>&nbsp;con la direcci\u00f3n IP o el nombre de host del servidor. Este comando:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Te pedir\u00e1 la contrase\u00f1a del usuario.<\/li>\n\n\n\n<li>A\u00f1adir\u00e1 autom\u00e1ticamente tu clave p\u00fablica al archivo&nbsp;<code class=\"\" data-line=\"\">~\/.ssh\/authorized_keys<\/code>&nbsp;en el servidor.<\/li>\n<\/ol>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Configurar permisos correctos en el servidor<\/strong><\/h4>\n\n\n\n<p>Aseg\u00farate de que los permisos en el servidor sean correctos:<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ chmod 700 ~\/.ssh\n$ chmod 600 ~\/.ssh\/authorized_keys\n<\/pre><\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Seguridad_adicional_opcional\"><\/span><strong>Seguridad adicional (opcional)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Configura un&nbsp;<strong>firewall<\/strong>&nbsp;para permitir solo conexiones necesarias<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ sudo apt install ufw\n$ sudo ufw allow 2222\/tcp\n$ sudo ufw allow 80\/tcp\n$ sudo ufw allow 443\/tcp\n$ sudo ufw enable\n<\/pre><\/div>\n\n\n<p>Con esto, tu servidor&nbsp;<strong>LAMP<\/strong>&nbsp;estar\u00e1 accesible de manera segura mediante&nbsp;<strong>SSH<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Para_saber_la_direccion_IP_o_el_nombre_del_servidor_en_Debian_12\"><\/span>Para saber la direcci\u00f3n IP o el nombre del servidor en&nbsp;Debian 12<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>Saber la IP del servidor en Debian 12<\/strong><\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ ip a\n<\/pre><\/div>\n\n\n<p>Esto mostrar\u00e1 una lista de interfaces de red con sus respectivas direcciones IP. Busca la direcci\u00f3n bajo la secci\u00f3n de la interfaz activa, como&nbsp;<code class=\"\" data-line=\"\">eth0<\/code>,&nbsp;<code class=\"\" data-line=\"\">ens33<\/code>&nbsp;o&nbsp;<code class=\"\" data-line=\"\">wlan0<\/code>.<\/p>\n\n\n\n<p><strong>Usar&nbsp;<\/strong><code class=\"\" data-line=\"\">hostname -I<\/code><\/p>\n\n\n\n<p>Este comando devuelve solo las direcciones IP asignadas al servidor:<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ hostname -I\n<\/pre><\/div>\n\n\n<h4 class=\"wp-block-heading\"><strong>Saber la IP p\u00fablica (si el servidor est\u00e1 conectado a internet)<\/strong><\/h4>\n\n\n\n<p>Si el servidor tiene acceso a internet, usa este comando para obtener la IP p\u00fablica:<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ curl ifconfig.me\n<\/pre><\/div>\n\n\n<p>Esto mostrar\u00e1 la IP p\u00fablica desde la cual el servidor es accesible desde internet.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Saber el nombre del servidor (hostname)<\/strong><\/h4>\n\n\n\n<p><strong>a) Mostrar el nombre del servidor<\/strong><\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ hostname\n<\/pre><\/div>\n\n\n<p>Esto devolver\u00e1 el nombre del servidor (por ejemplo,&nbsp;<code class=\"\" data-line=\"\">mi-servidor<\/code>).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Comprobar_el_entorno_LAMP_y_SSH\"><\/span><strong><strong>Comprobar el entorno LAMP y SSH<\/strong><\/strong>.<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Desde el cliente, intenta conectarte al servidor:<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ ssh usuario@ip_del_servidor\n<\/pre><\/div>\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; gutter: false; title: ; notranslate\" title=\"\">\n$ ssh javier02@direccionIPServer\n<\/pre><\/div>\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" width=\"1024\" height=\"547\" src=\"http:\/\/javiercachon.com\/wp-content\/uploads\/2024\/11\/Captura-de-pantalla-2024-11-22-133041-1-1024x547.jpg\" alt=\"\" class=\"wp-image-4275\" style=\"width:1200px;height:auto\" srcset=\"https:\/\/javiercachon.com\/wp-content\/uploads\/2024\/11\/Captura-de-pantalla-2024-11-22-133041-1-1024x547.jpg 1024w, https:\/\/javiercachon.com\/wp-content\/uploads\/2024\/11\/Captura-de-pantalla-2024-11-22-133041-1-300x160.jpg 300w, https:\/\/javiercachon.com\/wp-content\/uploads\/2024\/11\/Captura-de-pantalla-2024-11-22-133041-1-768x410.jpg 768w, https:\/\/javiercachon.com\/wp-content\/uploads\/2024\/11\/Captura-de-pantalla-2024-11-22-133041-1.jpg 1107w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Si todo est\u00e1 configurado correctamente, no se te pedir\u00e1 una contrase\u00f1a, y la autenticaci\u00f3n ser\u00e1 autom\u00e1tica.<\/p>\n\n\n\n<p>Accede al servidor web con un navegador:<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nhttp:\/\/&amp;lt;IP_DEL_SERVIDOR&gt;\n<\/pre><\/div>\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" width=\"1024\" height=\"613\" src=\"http:\/\/javiercachon.com\/wp-content\/uploads\/2024\/11\/ipserverweb-1024x613.jpg\" alt=\"\" class=\"wp-image-4276\" style=\"width:1200px;height:auto\" srcset=\"https:\/\/javiercachon.com\/wp-content\/uploads\/2024\/11\/ipserverweb-1024x613.jpg 1024w, https:\/\/javiercachon.com\/wp-content\/uploads\/2024\/11\/ipserverweb-300x180.jpg 300w, https:\/\/javiercachon.com\/wp-content\/uploads\/2024\/11\/ipserverweb-768x460.jpg 768w, https:\/\/javiercachon.com\/wp-content\/uploads\/2024\/11\/ipserverweb-1536x920.jpg 1536w, https:\/\/javiercachon.com\/wp-content\/uploads\/2024\/11\/ipserverweb.jpg 1914w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusi\u00f3n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>OpenSSH<\/strong> es una herramienta esencial para acceder y administrar servidores de forma remota de manera segura. Proporciona un canal encriptado que protege contra intercepciones y ataques de terceros, lo que lo hace ideal para gestionar servidores en redes p\u00fablicas o privadas. Su flexibilidad al permitir configuraciones avanzadas como autenticaci\u00f3n por claves p\u00fablicas, t\u00faneles SSH y reenv\u00edo de puertos lo convierten en una soluci\u00f3n robusta y ampliamente utilizada.<\/p>\n<div style='text-align:center' class='yasr-auto-insert-overall'><\/div><div style='text-align:center' class='yasr-auto-insert-visitor'><\/div>","protected":false},"excerpt":{"rendered":"<p>\u00bfQu\u00e9 es SSH? SSH (Secure Shell) es un protocolo de red que permite a los usuarios conectarse de forma segura a otros sistemas a trav\u00e9s de una red no segura. Proporciona: \u00bfQu\u00e9 es OpenSSH? OpenSSH es una implementaci\u00f3n libre y de c\u00f3digo abierto del protocolo SSH. Es una herramienta ampliamente [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4267,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"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":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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