{"id":364,"date":"2022-07-08T14:31:33","date_gmt":"2022-07-08T14:31:33","guid":{"rendered":"https:\/\/www.webhi.com\/how-to\/?p=364"},"modified":"2023-10-21T09:00:24","modified_gmt":"2023-10-21T09:00:24","slug":"comment-utiliser-une-cle-privee-pour-lauthentification-ssh","status":"publish","type":"post","link":"https:\/\/www.webhi.com\/how-to\/fr\/comment-utiliser-une-cle-privee-pour-lauthentification-ssh\/","title":{"rendered":"Comment utiliser une cl\u00e9 priv\u00e9e pour l\u2019authentification SSH"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/ssh_key_fr.jpg\" alt=\"Utiliser une cl\u00e9 priv\u00e9e pour l\u2019authentification SSH\" class=\"wp-image-823\" srcset=\"https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/ssh_key_fr.jpg 1200w, https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/ssh_key_fr-300x169.jpg 300w, https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/ssh_key_fr-1024x576.jpg 1024w, https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/ssh_key_fr-768x432.jpg 768w, https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/ssh_key_fr-150x84.jpg 150w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Qu&#8217;est-ce qu&#8217;une cl\u00e9 priv\u00e9e ?<\/h2>\n\n\n\n<p>M\u00eame les mots de passe les plus complexes ne peuvent pas correspondre \u00e0 la force cryptographique des cl\u00e9s priv\u00e9es. Avec SSH, les cl\u00e9s priv\u00e9es am\u00e9liorent consid\u00e9rablement la s\u00e9curit\u00e9 en soulageant les utilisateurs du fardeau de m\u00e9moriser des mots de passe complexes (ou pire encore, de les \u00e9crire).<\/p>\n\n\n\n<p>Ouvrons d\u2019abord un terminal et g\u00e9n\u00e9rons une cl\u00e9 priv\u00e9e.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00c9tape 1&nbsp;: V\u00e9rifiez si vous avez d\u00e9j\u00e0 une cl\u00e9 SSH.<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"bash\" class=\"language-bash\">$ ls ~\/.ssh<\/code><\/pre>\n\n\n\n<p><kbd>Output:<\/kbd><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"190\" src=\"https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/image-1-1024x190.png\" alt=\"\" class=\"wp-image-330\" srcset=\"https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/image-1-1024x190.png 1024w, https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/image-1-300x56.png 300w, https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/image-1-768x142.png 768w, https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/image-1-150x28.png 150w, https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/image-1.png 1100w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u00c9tape 2&nbsp;: Cr\u00e9er une cl\u00e9 SSH.<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"bash\" class=\"language-bash\">$ ssh-keygen<\/code><\/pre>\n\n\n\n<p><kbd>Output:<\/kbd><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"869\" height=\"489\" src=\"https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/image-2.png\" alt=\"\" class=\"wp-image-332\" srcset=\"https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/image-2.png 869w, https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/image-2-300x169.png 300w, https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/image-2-768x432.png 768w, https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/image-2-150x84.png 150w\" sizes=\"(max-width: 869px) 100vw, 869px\" \/><\/figure>\n\n\n\n<p>\u2013 La commande vous demandera un nom de fichier. Par d\u00e9faut, les paires de cl\u00e9s SSH sont stock\u00e9es comme id_rsa et id_rsa.pub pour les cl\u00e9s priv\u00e9es et publiques, respectivement.<\/p>\n\n\n\n<p><kbd>$ Enter file in which to save the key (\/home\/ubuntu\/.ssh\/id_rsa):<\/kbd><\/p>\n\n\n\n<p>Pour utiliser le nom de fichier par d\u00e9faut, appuyez sur ENTER et continuez.<\/p>\n\n\n\n<p>Dans la partie suivante, entrez un mot de passe pour s\u00e9curiser vos paires de cl\u00e9s. Vous pouvez ignorer cela en appuyant sur ENTER.<\/p>\n\n\n\n<p><kbd>$&nbsp; Enter passphrase (empty for no passphrase):<\/kbd><\/p>\n\n\n\n<p><kbd>$&nbsp; Enter same passphrase again:<\/kbd><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00c9tape 3\u00a0: Copiez la cl\u00e9 public sur l\u2019h\u00f4te distant.<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"bash\" class=\"language-bash\">$ ls ~\/.ssh<\/code><\/pre>\n\n\n\n<p><kbd>Output:<\/kbd><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"809\" height=\"88\" src=\"https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/image-4.png\" alt=\"\" class=\"wp-image-339\" srcset=\"https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/image-4.png 809w, https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/image-4-300x33.png 300w, https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/image-4-768x84.png 768w, https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/image-4-150x16.png 150w\" sizes=\"(max-width: 809px) 100vw, 809px\" \/><\/figure>\n\n\n\n<p>Pour utiliser la paire de cl\u00e9s SSH que vous avez cr\u00e9\u00e9e, nous devons d\u2019abord copier la cl\u00e9 publique sur le serveur distant. Heureusement, OpenSSH inclut la fonction ssh-copy-id pour cela.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"bash\" class=\"language-bash\">$ ssh-copy-id remote_server_user@remote_server_ip<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"768\" height=\"144\" src=\"https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/image-6.png\" alt=\"\" class=\"wp-image-369\" srcset=\"https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/image-6.png 768w, https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/image-6-300x56.png 300w, https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/image-6-150x28.png 150w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u00c9tape 4&nbsp;: SSH \u00e0 l\u2019aide de la cl\u00e9 priv\u00e9e.<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"bash\" class=\"language-bash\">$ ssh remote_server_user@remote_server_ip<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"768\" height=\"444\" src=\"https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/image-7.png\" alt=\"\" class=\"wp-image-371\" srcset=\"https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/image-7.png 768w, https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/image-7-300x173.png 300w, https:\/\/www.webhi.com\/how-to\/gilrogre\/2022\/07\/image-7-150x87.png 150w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<p>Vous avez maintenant r\u00e9ussi \u00e0 utiliser l&#8217;authentification de cl\u00e9 SSH. En \u00e9liminant la connexion par mot de passe, vous pouvez fournir un degr\u00e9 de protection suppl\u00e9mentaire.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p>Ce tutoriel vous a montr\u00e9 comment cr\u00e9er des paires de cl\u00e9s SSH et copier les cl\u00e9s vers des h\u00f4tes distants. Les \u00e9tapes mentionn\u00e9es ci-dessus vous permettent d\u2019authentifier les sessions SSH sans mot de passe. En outre, vous pouvez contr\u00f4ler de nombreux serveurs en m\u00eame temps avec une seule paire de cl\u00e9s.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Qu&#8217;est-ce qu&#8217;une cl\u00e9 priv\u00e9e ? M\u00eame les mots de passe les plus complexes ne peuvent pas correspondre \u00e0 la force cryptographique des cl\u00e9s priv\u00e9es. Avec SSH, les cl\u00e9s priv\u00e9es am\u00e9liorent consid\u00e9rablement la s\u00e9curit\u00e9 en soulageant les utilisateurs du fardeau de m\u00e9moriser des mots de passe complexes (ou pire encore, de les \u00e9crire). Ouvrons d\u2019abord un ..<\/p>\n<div class=\"clear-fix\"><\/div>\n<p><a href=\"https:\/\/www.webhi.com\/how-to\/fr\/comment-utiliser-une-cle-privee-pour-lauthentification-ssh\/\" title=\"read more...\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[67,31],"tags":[],"yoast_head":"\n<title>Comment utiliser une cl\u00e9 priv\u00e9e pour l\u2019authentification SSH - WebHi Tutorials &amp; Documentations<\/title>\n<meta name=\"description\" content=\"L&#039;authentification au moyen d&#039;une cl\u00e9 priv\u00e9e am\u00e9liore la s\u00e9curit\u00e9 d&#039;un serveur dans le processus de connexion. \u00c0 la place d&#039;un mot de passe uniquement.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.webhi.com\/how-to\/fr\/comment-utiliser-une-cle-privee-pour-lauthentification-ssh\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Comment utiliser une cl\u00e9 priv\u00e9e pour l\u2019authentification SSH - WebHi Tutorials &amp; 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