{"id":216,"date":"2026-05-02T11:10:19","date_gmt":"2026-05-02T09:10:19","guid":{"rendered":"https:\/\/eryann.fr\/?p=216"},"modified":"2026-05-02T14:08:59","modified_gmt":"2026-05-02T12:08:59","slug":"fiche-configuration-reseau-dhcpd-sur-raspberry-pi-debian-raspberry-pi-os","status":"publish","type":"post","link":"https:\/\/eryann.fr\/index.php\/reseau\/fiche-configuration-reseau-dhcpd-sur-raspberry-pi-debian-raspberry-pi-os\/","title":{"rendered":"Fiche configuration r\u00e9seau DHCPD sur raspberry pi  (debian \/ raspberry pi os)"},"content":{"rendered":"\n<p>Le Raspberry Pi est un excellent support pour :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>les travaux pratiques r\u00e9seau<\/li>\n\n\n\n<li>les projets IoT<\/li>\n\n\n\n<li>les services l\u00e9gers (web, DNS, MQTT\u2026)<\/li>\n<\/ul>\n\n\n\n<p>Contrairement \u00e0 Ubuntu, il utilise <strong>dhcpcd<\/strong> pour g\u00e9rer le r\u00e9seau.<\/p>\n\n\n\n<p>Objectif de cette fiche :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>configurer Ethernet et Wi-Fi<\/li>\n\n\n\n<li>mettre une IP fixe<\/li>\n\n\n\n<li>comprendre le fonctionnement<\/li>\n\n\n\n<li>diagnostiquer les probl\u00e8mes<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"683\" height=\"1024\" src=\"https:\/\/eryann.fr\/wp-content\/uploads\/2026\/05\/8d94cc47-bc10-4227-8d18-5ad885380476-683x1024.png\" alt=\"\" class=\"wp-image-217\" srcset=\"https:\/\/eryann.fr\/wp-content\/uploads\/2026\/05\/8d94cc47-bc10-4227-8d18-5ad885380476-683x1024.png 683w, https:\/\/eryann.fr\/wp-content\/uploads\/2026\/05\/8d94cc47-bc10-4227-8d18-5ad885380476-200x300.png 200w, https:\/\/eryann.fr\/wp-content\/uploads\/2026\/05\/8d94cc47-bc10-4227-8d18-5ad885380476-768x1152.png 768w, https:\/\/eryann.fr\/wp-content\/uploads\/2026\/05\/8d94cc47-bc10-4227-8d18-5ad885380476.png 1024w\" sizes=\"auto, (max-width: 683px) 100vw, 683px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Configuration compl\u00e8te <\/strong><\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code># \/etc\/dhcpcd.conf<br><br># ===== DHCP (par d\u00e9faut) =====<br>interface eth0<br># DHCP actif automatiquement<br><br># ===== IP fixe Ethernet =====<br>interface eth0<br>static ip_address=192.168.10.50\/24<br>static routers=192.168.10.1<br>static domain_name_servers=8.8.8.8 1.1.1.1<br><br># ===== Wi-Fi DHCP =====<br>interface wlan0<br># DHCP actif<br><br># ===== Wi-Fi IP fixe =====<br>interface wlan0<br>static ip_address=192.168.20.50\/24<br>static routers=192.168.20.1<br>static domain_name_servers=1.1.1.1 8.8.8.8<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Configuration Wi-Fi<\/strong><\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>\/etc\/wpa_supplicant\/wpa_supplicant.conf<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>country=FR<br><br>network={<br>    ssid=\"MonSSID\"<br>    psk=\"MotDePasseWifi\"<br>}<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Activation SSH<\/strong><\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo systemctl enable ssh<br>sudo systemctl start ssh<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Explication d\u00e9taill\u00e9e<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>dhcpcd<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>service principal r\u00e9seau du Raspberry Pi<\/li>\n\n\n\n<li>configure automatiquement les interfaces<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Interface Ethernet (eth0)<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>connexion filaire stable<\/li>\n\n\n\n<li>recommand\u00e9e pour :\n<ul class=\"wp-block-list\">\n<li>serveur<\/li>\n\n\n\n<li>administration<\/li>\n\n\n\n<li>lab r\u00e9seau<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Interface Wi-Fi (wlan0)<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>configuration via <code>wpa_supplicant<\/code><\/li>\n\n\n\n<li>utile pour mobilit\u00e9 ou IoT<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>IP fixe<\/strong><\/h3>\n\n\n\n<p>indispensable pour :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>acc\u00e8s SSH stable<\/li>\n\n\n\n<li>serveur web \/ DNS \/ MQTT<\/li>\n\n\n\n<li>supervision<\/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\"><strong>Commandes essentielles<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Red\u00e9marrer le r\u00e9seau<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo systemctl restart dhcpcd<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">V\u00e9rifier les interfaces<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>ip a<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">V\u00e9rifier le routage<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>ip route<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Tester la connectivit\u00e9<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>ping 8.8.8.8<br>ping google.com<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Commandes de diagnostic<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Logs r\u00e9seau<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>journalctl -u dhcpcd<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Wi-Fi<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>iw dev<br>iwconfig<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Scan Wi-Fi<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo iwlist wlan0 scan<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Fichiers importants<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>\/etc\/dhcpcd.conf<\/code> \u2192 configuration r\u00e9seau<\/li>\n\n\n\n<li><code>\/etc\/wpa_supplicant\/wpa_supplicant.conf<\/code> \u2192 Wi-Fi<\/li>\n\n\n\n<li><code>\/etc\/resolv.conf<\/code> \u2192 DNS<\/li>\n\n\n\n<li><code>\/etc\/hostname<\/code> \u2192 nom machine<\/li>\n\n\n\n<li><code>\/etc\/hosts<\/code> \u2192 r\u00e9solution locale<\/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\"><strong>Sch\u00e9ma de fonctionnement (clair et imprimable)<\/strong><\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>\/etc\/dhcpcd.conf<br>        \u2193<br>Service dhcpcd<br>        \u2193<br>Configuration IP \/ routes \/ DNS<br>        \u2193<br>Interfaces r\u00e9seau (eth0 \/ wlan0)<br>        \u2193<br>Acc\u00e8s r\u00e9seau \/ Internet<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Erreurs fr\u00e9quentes<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>mauvais SSID ou mot de passe<\/li>\n\n\n\n<li>IP hors du r\u00e9seau<\/li>\n\n\n\n<li>gateway incorrecte<\/li>\n\n\n\n<li>DNS absent<\/li>\n\n\n\n<li>conflit d\u2019adresse IP<\/li>\n\n\n\n<li>Wi-Fi bloqu\u00e9<\/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\"><strong>Bonnes pratiques<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>privil\u00e9gier Ethernet pour un serveur<\/li>\n\n\n\n<li>utiliser une IP fixe<\/li>\n\n\n\n<li>s\u00e9curiser SSH<\/li>\n\n\n\n<li>v\u00e9rifier syst\u00e9matiquement avec <code>ip a<\/code><\/li>\n\n\n\n<li>documenter le plan d\u2019adressage<\/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\"><strong>Cas concret BTS<\/strong><\/h2>\n\n\n\n<p>Raspberry Pi utilis\u00e9 comme :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>serveur web<\/li>\n\n\n\n<li>serveur DNS (Pi-hole)<\/li>\n\n\n\n<li>broker MQTT<\/li>\n\n\n\n<li>passerelle r\u00e9seau<\/li>\n\n\n\n<li>outil de supervision<\/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\"><strong>Recap<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Raspberry Pi \u2192 <code>dhcpcd<\/code><\/li>\n\n\n\n<li>Wi-Fi \u2192 <code>wpa_supplicant<\/code><\/li>\n\n\n\n<li>IP fixe \u2192 indispensable<\/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\"><strong>Conclusion<\/strong><\/h2>\n\n\n\n<p>Le Raspberry Pi permet de :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>comprendre concr\u00e8tement le r\u00e9seau<\/li>\n\n\n\n<li>tester des architectures<\/li>\n\n\n\n<li>simuler un environnement r\u00e9el<\/li>\n<\/ul>\n\n\n\n<p> Comp\u00e9tence cl\u00e9 pour BTS CIEL et BTS SIO<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><audio autoplay=\"\"><\/audio><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le Raspberry Pi est un excellent support pour : Contrairement \u00e0 Ubuntu, il utilise dhcpcd pour g\u00e9rer le r\u00e9seau. Objectif de cette fiche : Configuration compl\u00e8te Configuration Wi-Fi Activation SSH Explication d\u00e9taill\u00e9e dhcpcd Interface Ethernet (eth0) Interface Wi-Fi (wlan0) IP fixe indispensable pour : Commandes essentielles Red\u00e9marrer le r\u00e9seau V\u00e9rifier les interfaces V\u00e9rifier le routage [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","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":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[12,10],"tags":[],"class_list":["post-216","post","type-post","status-publish","format-standard","hentry","category-linux","category-reseau"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Fiche configuration r\u00e9seau DHCPD sur raspberry pi (debian \/ raspberry pi os) - Eryann Breizh SecOps<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/eryann.fr\/index.php\/reseau\/fiche-configuration-reseau-dhcpd-sur-raspberry-pi-debian-raspberry-pi-os\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Fiche configuration r\u00e9seau DHCPD sur raspberry pi (debian \/ raspberry pi os) - Eryann Breizh SecOps\" \/>\n<meta property=\"og:description\" content=\"Le Raspberry Pi est un excellent support pour : Contrairement \u00e0 Ubuntu, il utilise dhcpcd pour g\u00e9rer le r\u00e9seau. 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