{"id":225,"date":"2026-05-02T11:32:03","date_gmt":"2026-05-02T09:32:03","guid":{"rendered":"https:\/\/eryann.fr\/?p=225"},"modified":"2026-05-02T14:08:59","modified_gmt":"2026-05-02T12:08:59","slug":"fiche-gestionnaires-reseau-linux-debian-ubuntu-raspberry-pi","status":"publish","type":"post","link":"https:\/\/eryann.fr\/index.php\/reseau\/fiche-gestionnaires-reseau-linux-debian-ubuntu-raspberry-pi\/","title":{"rendered":"Fiche gestionnaires r\u00e9seau linux (debian \/ ubuntu \/ raspberry pi)"},"content":{"rendered":"\n<p><audio autoplay=\"\"><\/audio><\/p>\n\n\n\n<p>Sous Linux, plusieurs outils peuvent g\u00e9rer le r\u00e9seau.<br>Le point cl\u00e9 est de comprendre <strong>quel gestionnaire est actif<\/strong> et comment il s\u2019int\u00e8gre dans l\u2019architecture.<\/p>\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\/6a50e9f5-d1b6-481d-80f0-742448a3e7ba-683x1024.png\" alt=\"\" class=\"wp-image-226\" srcset=\"https:\/\/eryann.fr\/wp-content\/uploads\/2026\/05\/6a50e9f5-d1b6-481d-80f0-742448a3e7ba-683x1024.png 683w, https:\/\/eryann.fr\/wp-content\/uploads\/2026\/05\/6a50e9f5-d1b6-481d-80f0-742448a3e7ba-200x300.png 200w, https:\/\/eryann.fr\/wp-content\/uploads\/2026\/05\/6a50e9f5-d1b6-481d-80f0-742448a3e7ba-768x1152.png 768w, https:\/\/eryann.fr\/wp-content\/uploads\/2026\/05\/6a50e9f5-d1b6-481d-80f0-742448a3e7ba.png 1024w\" sizes=\"auto, (max-width: 683px) 100vw, 683px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">1. Architecture globale<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>Fichiers de configuration<br>        \u2193<br>Outils (netplan \/ interfaces \/ nmcli \/ dhcpcd)<br>        \u2193<br>Gestionnaires r\u00e9seau (systemd-networkd \/ NetworkManager \/ dhcpcd \/ ifupdown)<br>        \u2193<br>Noyau Linux (IP, routes, DNS)<br>        \u2193<br>Interfaces r\u00e9seau (eth0, wlan0\u2026)<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2. Les gestionnaires r\u00e9seau<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">systemd-networkd<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>backend l\u00e9ger orient\u00e9 serveur<\/li>\n\n\n\n<li>utilis\u00e9 avec netplan<\/li>\n\n\n\n<li>gestion IP, routes, DNS, DHCP<\/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\">NetworkManager<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>gestion compl\u00e8te (Ethernet, Wi-Fi, VPN)<\/li>\n\n\n\n<li>utilis\u00e9 en desktop<\/li>\n\n\n\n<li>pilot\u00e9 avec nmcli<\/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\">dhcpcd<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>simple et autonome<\/li>\n\n\n\n<li>utilis\u00e9 sur Raspberry Pi<\/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\">ifupdown<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>syst\u00e8me historique Debian<\/li>\n\n\n\n<li>bas\u00e9 sur \/etc\/network\/interfaces<\/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\">3. Le r\u00f4le de netplan<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>\/etc\/netplan\/*.yaml<br>        \u2193<br>netplan<br>        \u2193<br>systemd-networkd ou NetworkManager<\/code><\/pre>\n\n\n\n<p>netplan est une couche interm\u00e9diaire.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">4. Identifier le gestionnaire actif<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>systemctl status systemd-networkd<br>systemctl status NetworkManager<br>systemctl status dhcpcd<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>nmcli dev status<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>networkctl<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>ps aux | grep dhcpcd<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">5. Tableau r\u00e9capitulatif des gestionnaires r\u00e9seau<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Gestionnaire<\/th><th>Type<\/th><th>Distribution typique<\/th><th>R\u00f4le principal<\/th><th>Outil associ\u00e9<\/th><th>Fichier principal<\/th><\/tr><\/thead><tbody><tr><td>systemd-networkd<\/td><td>backend<\/td><td>Ubuntu serveur, Debian moderne<\/td><td>Configure IP, routes, DNS, DHCP<\/td><td>networkctl<\/td><td>\/etc\/systemd\/network\/<\/td><\/tr><tr><td>NetworkManager<\/td><td>backend<\/td><td>Ubuntu desktop, Raspberry (option)<\/td><td>Gestion compl\u00e8te (Wi-Fi, VPN, Ethernet)<\/td><td>nmcli<\/td><td>\/etc\/NetworkManager\/<\/td><\/tr><tr><td>dhcpcd<\/td><td>backend<\/td><td>Raspberry Pi OS<\/td><td>DHCP + IP fixe simple<\/td><td>dhcpcd<\/td><td>\/etc\/dhcpcd.conf<\/td><\/tr><tr><td>ifupdown<\/td><td>backend<\/td><td>Debian classique<\/td><td>Active interfaces via config statique<\/td><td>ifup \/ ifdown<\/td><td>\/etc\/network\/interfaces<\/td><\/tr><tr><td>netplan<\/td><td>interm\u00e9diaire<\/td><td>Ubuntu<\/td><td>G\u00e9n\u00e8re config pour backend<\/td><td>netplan<\/td><td>\/etc\/netplan\/*.yaml<\/td><\/tr><tr><td>nmcli<\/td><td>outil<\/td><td>toutes (avec NetworkManager)<\/td><td>CLI pour NetworkManager<\/td><td>nmcli<\/td><td>\/etc\/NetworkManager\/system-connections\/<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">6. Par distribution<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Debian<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ifupdown (historique)<\/li>\n\n\n\n<li>systemd-networkd (moderne)<\/li>\n\n\n\n<li>NetworkManager (option)<\/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\">Ubuntu<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>netplan obligatoire<\/li>\n\n\n\n<li>backend :\n<ul class=\"wp-block-list\">\n<li>systemd-networkd (serveur)<\/li>\n\n\n\n<li>NetworkManager (desktop)<\/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\">Raspberry Pi<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>dhcpcd par d\u00e9faut<\/li>\n\n\n\n<li>NetworkManager possible<\/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\">7. Erreurs fr\u00e9quentes<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>plusieurs gestionnaires actifs<\/li>\n\n\n\n<li>netplan mal configur\u00e9<\/li>\n\n\n\n<li>conflit dhcpcd et NetworkManager<\/li>\n\n\n\n<li>confusion outil \/ backend<\/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\">8. Bonnes pratiques<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>un seul gestionnaire actif<\/li>\n\n\n\n<li>identifier avant modification<\/li>\n\n\n\n<li>v\u00e9rifier apr\u00e8s chaque changement<\/li>\n\n\n\n<li>documenter le syst\u00e8me<\/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\">9. Recap<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>netplan : g\u00e9n\u00e9rateur<\/li>\n\n\n\n<li>systemd-networkd : moteur serveur<\/li>\n\n\n\n<li>NetworkManager : moteur desktop<\/li>\n\n\n\n<li>dhcpcd : solution simple<\/li>\n\n\n\n<li>ifupdown : m\u00e9thode historique<\/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\">Conclusion<\/h2>\n\n\n\n<p>Comprendre les gestionnaires r\u00e9seau permet :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>d\u2019\u00e9viter les conflits<\/li>\n\n\n\n<li>de diagnostiquer rapidement<\/li>\n\n\n\n<li>de travailler comme en environnement professionnel<\/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","protected":false},"excerpt":{"rendered":"<p>Sous Linux, plusieurs outils peuvent g\u00e9rer le r\u00e9seau.Le point cl\u00e9 est de comprendre quel gestionnaire est actif et comment il s\u2019int\u00e8gre dans l\u2019architecture. 1. Architecture globale 2. Les gestionnaires r\u00e9seau systemd-networkd NetworkManager dhcpcd ifupdown 3. Le r\u00f4le de netplan netplan est une couche interm\u00e9diaire. 4. Identifier le gestionnaire actif 5. Tableau r\u00e9capitulatif des gestionnaires r\u00e9seau [&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-225","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 gestionnaires r\u00e9seau linux (debian \/ ubuntu \/ raspberry pi) - 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-gestionnaires-reseau-linux-debian-ubuntu-raspberry-pi\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Fiche gestionnaires r\u00e9seau linux (debian \/ ubuntu \/ raspberry pi) - Eryann Breizh SecOps\" \/>\n<meta property=\"og:description\" content=\"Sous Linux, plusieurs outils peuvent g\u00e9rer le r\u00e9seau.Le point cl\u00e9 est de comprendre quel gestionnaire est actif et comment il s\u2019int\u00e8gre dans l\u2019architecture. 1. 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