{"id":7,"date":"2025-12-24T19:34:58","date_gmt":"2025-12-24T11:34:58","guid":{"rendered":"https:\/\/wp.shjlr.top\/?p=7"},"modified":"2025-12-25T05:30:24","modified_gmt":"2025-12-24T21:30:24","slug":"%e4%b8%80%e6%ac%a1%e3%80%8cpermission-denied-publickey%e3%80%8d%e7%9a%84%e5%ae%8c%e6%95%b4%e6%8e%92%e6%9f%a5%e5%ae%9e%e5%bd%95%ef%bc%9a%e7%9c%9f%e6%ad%a3%e7%9a%84%e5%9d%91%e5%9c%a8-root-%e6%9d%83","status":"publish","type":"post","link":"https:\/\/wp.shjlr.top\/index.php\/2025\/12\/24\/%e4%b8%80%e6%ac%a1%e3%80%8cpermission-denied-publickey%e3%80%8d%e7%9a%84%e5%ae%8c%e6%95%b4%e6%8e%92%e6%9f%a5%e5%ae%9e%e5%bd%95%ef%bc%9a%e7%9c%9f%e6%ad%a3%e7%9a%84%e5%9d%91%e5%9c%a8-root-%e6%9d%83\/","title":{"rendered":"\u4e00\u6b21\u300cPermission denied (publickey)\u300d\u7684\u5b8c\u6574\u6392\u67e5\u5b9e\u5f55\uff1a\u771f\u6b63\u7684\u5751\u5728 \/root \u6743\u9650"},"content":{"rendered":"\n<p><\/p>\n\n\n\n<h5 class=\"wp-block-heading\">\u4e00\u6b21\u300cPermission denied (publickey)\u300d\u7684\u5b8c\u6574\u6392\u67e5\u5b9e\u5f55\uff1a\u771f\u6b63\u7684\u5751\u5728 \/root \u6743\u9650<\/h5>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"has-medium-font-size\">\u8bb0\u5f55\u4e00\u6b21\u771f\u5b9e\u7684 SSH \u516c\u94a5\u767b\u5f55\u5931\u8d25\u6392\u67e5\u8fc7\u7a0b\u3002<br>\u8868\u9762\u662f <code>Permission denied (publickey)<\/code>\uff0c<br>\u5b9e\u9645\u539f\u56e0\u5374\u662f <strong>\/root \u76ee\u5f55\u6743\u9650\u4e0d\u5b89\u5168\uff0c\u88ab OpenSSH \u76f4\u63a5\u62d2\u7edd<\/strong>\u3002<\/p>\n<\/blockquote>\n\n\n\n<p>\u8fd9\u7bc7\u6587\u7ae0\u5b8c\u6574\u590d\u76d8\u6211\u7684\u6392\u67e5\u8def\u5f84\uff0c\u5e0c\u671b\u80fd\u5e2e\u4f60\u5c11\u8e29\u4e00\u4e2a <strong>\u975e\u5e38\u9690\u853d\u4f46\u81f4\u547d\u7684 SSH \u5751<\/strong>\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h5 class=\"wp-block-heading\">\u4e00\u3001\u95ee\u9898\u80cc\u666f<\/h5>\n\n\n\n<p>\u5728\u4f7f\u7528 SSH key \u767b\u5f55\u670d\u52a1\u5668\u65f6\uff0c\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ssh -o IdentitiesOnly=yes -i ~\/.ssh\/key-dmit.pem root@my_server_ip\n<\/code><\/pre>\n\n\n\n<p>\u8fd4\u56de\u7ed3\u679c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Permission denied (publickey).\n<\/code><\/pre>\n\n\n\n<p>\u670d\u52a1\u5668\u73af\u5883\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Debian 12<\/li>\n\n\n\n<li>OpenSSH_9.x<\/li>\n\n\n\n<li>root \u767b\u5f55<\/li>\n\n\n\n<li>\u5df2\u786e\u8ba4\u670d\u52a1\u5668 <strong>22 \u7aef\u53e3\u5f00\u653e<\/strong><\/li>\n\n\n\n<li>\u7f51\u7edc\u8fde\u901a\u6b63\u5e38<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h5 class=\"wp-block-heading\">\u4e8c\u3001\u7b2c\u4e00\u6b65\uff1a\u786e\u8ba4\u7f51\u7edc\u4e0e SSH \u670d\u52a1\u6b63\u5e38<\/h5>\n\n\n\n<h5 class=\"wp-block-heading\">1\ufe0f\u20e3 \u6d4b\u8bd5 SSH \u63e1\u624b\u662f\u5426\u6210\u529f<\/h5>\n\n\n\n<pre class=\"wp-block-code\"><code>ssh -vvv -i ~\/.ssh\/key-dmit.pem root@my_server_ip\n<\/code><\/pre>\n\n\n\n<p>\u53ef\u4ee5\u770b\u5230\u5b8c\u6574\u7684\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>TCP \u8fde\u63a5\u5efa\u7acb<\/li>\n\n\n\n<li>SSH KEX \u6b63\u5e38<\/li>\n\n\n\n<li>Host key \u6821\u9a8c\u901a\u8fc7<\/li>\n<\/ul>\n\n\n\n<p>\u8bf4\u660e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u274c \u4e0d\u662f\u7f51\u7edc\u95ee\u9898<\/li>\n\n\n\n<li>\u274c \u4e0d\u662f\u7aef\u53e3 \/ \u9632\u706b\u5899\u95ee\u9898<\/li>\n\n\n\n<li>\u274c \u4e0d\u662f SSH \u7248\u672c\u4e0d\u517c\u5bb9<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h5 class=\"wp-block-heading\">\u4e09\u3001\u7406\u89e3\u4e00\u4e2a\u5e38\u88ab\u8bef\u89e3\u7684\u63d0\u793a<\/h5>\n\n\n\n<p>\u7b2c\u4e00\u6b21\u8fde\u63a5\u670d\u52a1\u5668\u65f6\uff0c\u4f1a\u770b\u5230\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>The authenticity of host 'my_server_ip' can't be established.\nAre you sure you want to continue connecting (yes\/no)?\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u662f <strong>SSH \u7684\u6b63\u5e38\u5b89\u5168\u63d0\u793a<\/strong>\uff0c\u4e0d\u662f\u62a5\u9519\u3002<\/p>\n\n\n\n<p>\u6b63\u786e\u64cd\u4f5c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>yes\n<\/code><\/pre>\n\n\n\n<p>\u7ee7\u7eed\u5373\u53ef\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h5 class=\"wp-block-heading\">\u56db\u3001\u5173\u952e\u65e5\u5fd7\uff1a-vvv \u5b9a\u4f4d\u5230\u670d\u52a1\u5668\u62d2\u7edd\u4e86 key<\/h5>\n\n\n\n<p>\u5728 <code>ssh -vvv<\/code> \u8f93\u51fa\u4e2d\uff0c\u6700\u5173\u952e\u7684\u662f\u8fd9\u4e00\u6bb5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Offering public key: key-dmit.pem RSA SHA256:xxxx\nAuthentications that can continue: publickey\nPermission denied (publickey).\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u8bf4\u660e\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5ba2\u6237\u7aef\u6210\u529f\u63d0\u4ea4\u4e86\u516c\u94a5<br>\u4f46\u670d\u52a1\u5668 <strong>\u660e\u786e\u62d2\u7edd\u4e86\u8be5 key<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p>\u4e8e\u662f\uff0c\u95ee\u9898\u4e00\u5b9a\u5728 <strong>\u670d\u52a1\u5668\u7aef<\/strong>\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h5 class=\"wp-block-heading\">\u4e94\u3001\u670d\u52a1\u5668\u7aef\u81ea\u68c0\uff1assh \u65e5\u5fd7\u662f\u552f\u4e00\u771f\u76f8<\/h5>\n\n\n\n<p>\u5728\u670d\u52a1\u5668\u4e0a\u6267\u884c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>journalctl -u ssh -f\n<\/code><\/pre>\n\n\n\n<p>\u7136\u540e\u5728\u672c\u5730\u518d\u6b21\u5c1d\u8bd5 SSH \u767b\u5f55\u3002<\/p>\n\n\n\n<p>\u65e5\u5fd7\u4e2d\u51fa\u73b0\u4e86\u5173\u952e\u4e00\u884c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Authentication refused: bad ownership or modes for directory \/root\n<\/code><\/pre>\n\n\n\n<p>\ud83d\udea8 <strong>\u771f\u51f6\u51fa\u73b0\u4e86<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h5 class=\"wp-block-heading\">\u516d\u3001\u771f\u6b63\u7684\u539f\u56e0\uff1a\/root \u76ee\u5f55\u6743\u9650\u4e0d\u5b89\u5168<\/h5>\n\n\n\n<p>\u5f88\u591a\u4eba\uff08\u5305\u62ec\u6211\uff09\u4ee5\u4e3a SSH \u53ea\u68c0\u67e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/root\/.ssh\n\/root\/.ssh\/authorized_keys\n<\/code><\/pre>\n\n\n\n<p>\u4f46 <strong>OpenSSH \u7684\u5b89\u5168\u68c0\u67e5\u662f\u201c\u6574\u6761\u8def\u5f84\u201d<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/root\n\/root\/.ssh\n\/root\/.ssh\/authorized_keys\n<\/code><\/pre>\n\n\n\n<p>\u53ea\u8981\u5176\u4e2d\u4efb\u4f55\u4e00\u7ea7\u6743\u9650\u4e0d\u7b26\u5408\u8981\u6c42\uff0cSSH \u4f1a\u76f4\u63a5\u62d2\u7edd\u8ba4\u8bc1\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">OpenSSH \u5bf9 root \u7684\u786c\u6027\u8981\u6c42<\/h5>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u8def\u5f84<\/th><th>\u6743\u9650<\/th><th>\u5c5e\u4e3b<\/th><\/tr><\/thead><tbody><tr><td>\/root<\/td><td>700<\/td><td>root:root<\/td><\/tr><tr><td>\/root\/.ssh<\/td><td>700<\/td><td>root:root<\/td><\/tr><tr><td>authorized_keys<\/td><td>600<\/td><td>root:root<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u54ea\u6015\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>\/root<\/code> \u662f <code>755<\/code><\/li>\n\n\n\n<li>\u6216 group \/ other \u6709\u5199\u6743\u9650<\/li>\n<\/ul>\n\n\n\n<p>\ud83d\udc49 <strong>\u90fd\u4f1a\u76f4\u63a5\u5931\u8d25\uff0c\u4e14\u5ba2\u6237\u7aef\u53ea\u663e\u793a <code>Permission denied (publickey)<\/code><\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h5 class=\"wp-block-heading\">\u4e03\u3001\u4fee\u590d\u65b9\u6848\uff08\u4e00\u6b21\u5230\u4f4d\uff09<\/h5>\n\n\n\n<p>\u5728\u670d\u52a1\u5668\u63a7\u5236\u53f0 \/ VNC \u4e2d\u6267\u884c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>chown root:root \/root\nchmod 700 \/root\n\nmkdir -p \/root\/.ssh\nchown root:root \/root\/.ssh\nchmod 700 \/root\/.ssh\n\ntouch \/root\/.ssh\/authorized_keys\nchown root:root \/root\/.ssh\/authorized_keys\nchmod 600 \/root\/.ssh\/authorized_keys\n<\/code><\/pre>\n\n\n\n<p>\u7136\u540e\u786e\u8ba4\u516c\u94a5\u5185\u5bb9\u6b63\u786e\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ssh-keygen -y -f ~\/.ssh\/key-dmit.pem\n<\/code><\/pre>\n\n\n\n<p>\u5c06\u8f93\u51fa\u7684\u4e00\u6574\u884c\u516c\u94a5\u653e\u5165\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/root\/.ssh\/authorized_keys\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h5 class=\"wp-block-heading\">\u516b\u3001\u6700\u7ec8\u9a8c\u8bc1<\/h5>\n\n\n\n<pre class=\"wp-block-code\"><code>ssh -i ~\/.ssh\/key-dmit.pem root@my_server_ip\n<\/code><\/pre>\n\n\n\n<p>\u6210\u529f\u767b\u5f55 \ud83c\udf89<\/p>\n\n\n\n<p>\u670d\u52a1\u5668\u65e5\u5fd7\u663e\u793a\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Accepted publickey for root\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h5 class=\"wp-block-heading\">\u4e5d\u3001\u987a\u624b\u505a\u7684\u5b89\u5168\u52a0\u56fa\uff08\u5f3a\u70c8\u63a8\u8350\uff09<\/h5>\n\n\n\n<p>\u670d\u52a1\u5668\u6b63\u5728\u88ab\u5168\u7f51\u626b\u63cf\uff08elastic \/ admin \/ ftp \u7b49\uff09\uff0c\u5efa\u8bae\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>PasswordAuthentication no\nPermitRootLogin prohibit-password\n<\/code><\/pre>\n\n\n\n<p>\u5373\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7981\u6b62\u5bc6\u7801\u767b\u5f55<\/li>\n\n\n\n<li>root \u4ec5\u5141\u8bb8 key \u767b\u5f55<\/li>\n<\/ul>\n\n\n\n<p>\u5e76\u91cd\u542f sshd\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>systemctl restart sshd\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h5 class=\"wp-block-heading\">\u5341\u3001\u7ecf\u9a8c\u603b\u7ed3\uff08\u8840\u7684\u6559\u8bad\uff09<\/h5>\n\n\n\n<ol class=\"wp-block-list\">\n<li><code>Permission denied (publickey)<\/code> <strong>\u5e76\u4e0d\u7b49\u4e8e key \u5185\u5bb9\u9519\u8bef<\/strong><\/li>\n\n\n\n<li>\u4e00\u5b9a\u8981\u770b <strong>\u670d\u52a1\u5668\u7aef sshd \u65e5\u5fd7<\/strong><\/li>\n\n\n\n<li>SSH \u68c0\u67e5\u7684\u662f <strong>\u6574\u6761\u76ee\u5f55\u6743\u9650\u94fe<\/strong><\/li>\n\n\n\n<li><code>\/root<\/code> \u6743\u9650\u95ee\u9898\u6781\u5176\u9690\u853d\uff0c\u4f46\u540e\u679c\u76f4\u63a5\u201c\u6b7b\u5211\u201d<\/li>\n\n\n\n<li><code>journalctl -u ssh -f<\/code> \u662f\u6392\u67e5 SSH \u7684\u7ec8\u6781\u6b66\u5668<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h5 class=\"wp-block-heading\">\u7ed3\u8bed<\/h5>\n\n\n\n<p>\u8fd9\u6b21\u6392\u67e5\u8ba9\u6211\u518d\u6b21\u786e\u8ba4\u4e00\u4ef6\u4e8b\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>\u4e0d\u8981\u731c SSH\uff0c\u53bb\u770b\u65e5\u5fd7\u3002<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p>\u5e0c\u671b\u8fd9\u7bc7\u8bb0\u5f55\u80fd\u5e2e\u4f60\u8282\u7701\u81f3\u5c11 1 \u5c0f\u65f6\u7684\u65e0\u6548\u6298\u817e\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u4f60\u4e5f\u8e29\u8fc7\u7c7b\u4f3c\u7684\u5751\uff0c\u6b22\u8fce\u4ea4\u6d41\u3002<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u6b21\u300cPermission denied (publickey)\u300d\u7684\u5b8c\u6574\u6392\u67e5\u5b9e\u5f55\uff1a\u771f\u6b63\u7684\u5751\u5728 \/root \u6743\u9650 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-7","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/wp.shjlr.top\/index.php\/wp-json\/wp\/v2\/posts\/7","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.shjlr.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wp.shjlr.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wp.shjlr.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.shjlr.top\/index.php\/wp-json\/wp\/v2\/comments?post=7"}],"version-history":[{"count":5,"href":"https:\/\/wp.shjlr.top\/index.php\/wp-json\/wp\/v2\/posts\/7\/revisions"}],"predecessor-version":[{"id":15,"href":"https:\/\/wp.shjlr.top\/index.php\/wp-json\/wp\/v2\/posts\/7\/revisions\/15"}],"wp:attachment":[{"href":"https:\/\/wp.shjlr.top\/index.php\/wp-json\/wp\/v2\/media?parent=7"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.shjlr.top\/index.php\/wp-json\/wp\/v2\/categories?post=7"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.shjlr.top\/index.php\/wp-json\/wp\/v2\/tags?post=7"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}