{"id":797,"date":"2020-03-25T23:37:37","date_gmt":"2020-03-25T15:37:37","guid":{"rendered":"http:\/\/blog.ywdevops.cn\/?p=797"},"modified":"2026-07-28T14:38:28","modified_gmt":"2026-07-28T06:38:28","slug":"ssh","status":"publish","type":"post","link":"https:\/\/blog.ywdevops.cn\/index.php\/2020\/03\/25\/ssh\/","title":{"rendered":"linux\u901a\u8fc7ssh\u5b89\u5168\u5bc6\u94a5\u514d\u5bc6\u8fde\u63a5\u8fdc\u7a0b\u4e3b\u673a"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u4f7f\u7528\u5bc6\u7801\u8fdb\u884c\u53e3\u4ee4\u9a8c\u8bc1\u7ec8\u5f52\u5b58\u5728\u7740\u88ab\u66b4\u529b\u7834\u89e3\u6216\u55c5\u63a2\u622a\u83b7\u7684 \u98ce\u9669\u3002\u5982\u679c\u6b63\u786e\u914d\u7f6e\u4e86\u5bc6\u94a5\u9a8c\u8bc1\u65b9\u5f0f\uff0c\u90a3\u4e48 sshd \u670d\u52a1\u7a0b\u5e8f\u5c06\u66f4\u52a0\u5b89\u5168\u3002\uff0c\u5177\u4f53\u64cd\u4f5c\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1\u3001\u9996\u5148\u5728\u5ba2\u6237\u7aef\u4e2d\u751f\u6210\u5bc6\u94a5\u5bf9\uff0c\u8f93\u5165\u547d\u4ee4<strong>ssh-keygen<\/strong>\uff0c\u7136\u540e\u76f4\u63a5\u6309\u56de\u8f66\u5373\u53ef\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"550\" height=\"239\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/03\/20-5.png\" alt=\"\" class=\"wp-image-798\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/03\/20-5.png 550w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/03\/20-5-300x130.png 300w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728root\u76ee\u5f55\u4e0b\u7684.ssh\u76ee\u5f55\u4e0b\u53ef\u4ee5\u770b\u5230\u516c\u94a5\u6587\u4ef6\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"550\" height=\"183\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/03\/21-6.png\" alt=\"\" class=\"wp-image-799\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/03\/21-6.png 550w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/03\/21-6-300x100.png 300w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">2\u3001\u5c06\u6b64\u516c\u94a5\u6587\u4ef6\u4f20\u9001\u5230\u8fdc\u7a0b\u673a\u5668\u4e0a\uff0c\u4f1a\u63d0\u793a\u8f93\u5165\u8fdc\u7a0b\u4e3b\u673a\u5bc6\u7801\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"550\" height=\"281\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/03\/22-5.png\" alt=\"\" class=\"wp-image-800\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/03\/22-5.png 550w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/03\/22-5-300x153.png 300w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/figure>\n\n\n\n<p class=\"has-luminous-vivid-amber-background-color has-background wp-block-paragraph\">\u4e5f\u53ef\u4ee5\u76f4\u63a5\u5c06id_rsa.pub\u7684\u6587\u4ef6\u5185\u5bb9\u590d\u5236\u5230\u76ee\u6807\u673a\u5668\u7528\u6237\u4e0b\u7684\/root\/.ssh\/authorized_keys\u6587\u4ef6\u4e2d,\u5982\u679c\u662f\u5176\u4ed6\u7528\u6237\u5c31\u4fee\u6539root\u4e3a\u5176\u4ed6\u7528\u6237\u540d\uff0c.ssh\/authorized_keys\u6ca1\u6709\u5c31\u65b0\u5efa<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3\u3001\u5728\u8fdc\u7a0b\u4e3b\u673a\u4e0a\uff0c\u4fee\u6539\u914d\u7f6e\u6587\u4ef6\uff0c\u53ea\u5141\u8bb8\u5bc6\u94a5\u8ba4\u8bc1(PasswordAuth)\uff0c\u53d6\u6d88\u5bc6\u7801\u8ba4\u8bc1\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"652\" height=\"70\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2025\/02\/wechat_2025-02-19_104957_013.png\" alt=\"\" class=\"wp-image-17866\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2025\/02\/wechat_2025-02-19_104957_013.png 652w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2025\/02\/wechat_2025-02-19_104957_013-300x32.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2025\/02\/wechat_2025-02-19_104957_013-600x64.png 600w\" sizes=\"auto, (max-width: 652px) 100vw, 652px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"657\" height=\"52\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2025\/02\/wechat_2025-02-19_105043_617.png\" alt=\"\" class=\"wp-image-17867\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2025\/02\/wechat_2025-02-19_105043_617.png 657w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2025\/02\/wechat_2025-02-19_105043_617-300x24.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2025\/02\/wechat_2025-02-19_105043_617-600x47.png 600w\" sizes=\"auto, (max-width: 657px) 100vw, 657px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bbe\u7f6e\u5b8c\u6210\u540e\u6267\u884c\u547d\u4ee4systemctl   restart sshd \u91cd\u542fsshd\u670d\u52a1\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u91cd\u65b0\u5728\u5ba2\u6237\u7aef\u6267\u884cssh   10.88.5.31\u53d1\u73b0\u5df2\u7ecf\u53ef\u4ee5\u767b\u5f55\u673a\u5668\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"550\" height=\"281\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/03\/1-3.png\" alt=\"\" class=\"wp-image-803\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/03\/1-3.png 550w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/03\/1-3-300x153.png 300w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u81f3\u6b64\uff0c\u901a\u8fc7\u5bc6\u94a5\u65b9\u5f0f\u767b\u5f55\u8fdc\u7a0b\u670d\u52a1\u5668\u914d\u7f6e\u5b8c\u6210\uff01<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-purple-color\">\u95ee\u98981\uff1a<\/mark><\/strong>\u5982\u679c\u6309\u7167\u4e0a\u8ff0\u914d\u7f6e\uff0c\u901a\u8fc7ssh\u8fde\u63a5\u63d0\u793a\u5982\u4e0b\u9519\u8bef\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Permission denied (publickey,gssapi-keyex,gssapi-with-mic)<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u56e0\u4e3assh \u5bf9 <code>.ssh<\/code> \u76ee\u5f55\u548c <code>authorized_keys<\/code> \u6587\u4ef6\u7684\u6743\u9650\u8981\u6c42\u975e\u5e38\u4e25\u683c\u3002\u5982\u679c\u6743\u9650\u8bbe\u7f6e\u4e0d\u6b63\u786e\uff0cSSH \u4f1a\u62d2\u7edd\u516c\u94a5\u8ba4\u8bc1\uff0c\u56e0\u6b64\u68c0\u67e5\u76ee\u6807\u7aef\u7684.ssh\u76ee\u5f55\u548cauthorized_keys\u6587\u4ef6\u7684\u6743\u9650\uff0c\u91cd\u65b0\u8bbe\u7f6e\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>chmod 700 ~\/.ssh                #.ssh\u76ee\u5f55\u4e00\u5b9a\u8981\u8bbe\u7f6e\u4e3a700\nchmod 600 ~\/.ssh\/authorized_key #authorized_key\u6587\u4ef6\u4e00\u5b9a\u8981\u8bbe\u7f6e\u4e3a600<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-purple-color\">\u95ee\u98982: <\/mark><\/strong>\u5982\u679c\u6240\u6709\u90fd\u914d\u7f6e\u6b63\u786e\uff0c\u4f46\u662f\u901a\u8fc7ssh\u8fde\u63a5\u8fd8\u662f\u63d0\u793a\u8f93\u5165\u5bc6\u7801\uff0c\u6b64\u65f6\u53ef\u80fd\u662f\u670d\u52a1\u7aef\u7684openssh\u7248\u672c\u8fc7\u4f4e\uff0c\u5bfc\u81f4\u5bc6\u94a5\u4e0d\u5339\u914d\uff0c\u65e0\u6cd5\u5b9e\u73b0\u8fde\u63a5\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a\u5ba2\u6237\u7aef\u7684openssh\u7684\u7248\u672c\u4e3a9.6, \u52a0\u5bc6\u7b97\u6cd5\u4e3aSHA256\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"645\" height=\"166\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2026\/01\/3-3.png\" alt=\"\" class=\"wp-image-19528\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2026\/01\/3-3.png 645w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2026\/01\/3-3-300x77.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2026\/01\/3-3-600x154.png 600w\" sizes=\"auto, (max-width: 645px) 100vw, 645px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u670d\u52a1\u7aef\u7684openssh\u7248\u672c\u4e3a6.6,\u52a0\u5bc6\u7b97\u6cd5\u4e0d\u652f\u6301SHA256\u52a0\u5bc6\u7b97\u6cd5\uff0c\u662f\u65e7\u7684\u7b97\u6cd5\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"645\" height=\"189\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2026\/01\/4-2.png\" alt=\"\" class=\"wp-image-19529\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2026\/01\/4-2.png 645w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2026\/01\/4-2-300x88.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2026\/01\/4-2-600x176.png 600w\" sizes=\"auto, (max-width: 645px) 100vw, 645px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u540e\u901a\u8fc7ssh\u8fde\u63a5\u5373\u53ef<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-purple-color\">\u95ee\u98983: <\/mark><\/strong> SSH\u8fde\u63a5\u8fdc\u7a0b\u670d\u52a1\u63d0\u793a\u9519\u8bef\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Unable to negotiate with 192.168.1.1 port 22: no matching host key type found. Their offer: ssh-rsa,ssh-dss<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bf4\u660e <strong>\u670d\u52a1\u7aef\uff08CentOS 6 \u8001\u7cfb\u7edf\uff09\u53ea\u63d0\u4f9b <code>ssh-rsa<\/code> \u548c <code>ssh-dss<\/code> \u8fd9\u4e24\u79cd\u65e7\u7b97\u6cd5<\/strong>\uff0c\u800c <strong>\u4f60\u7684\u5ba2\u6237\u7aef\uff08OpenSSH 9.x\uff09\u9ed8\u8ba4\u5df2\u7ecf\u7981\u7528\u5b83\u4eec<\/strong>\uff0c\u5bfc\u81f4\u63e1\u624b\u5931\u8d25\uff0c\u89e3\u51b3\u65b9\u5f0f\u6709\u4ee5\u4e0b\u4e24\u79cd\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">(1)\u3001\u4e34\u65f6\u89e3\u51b3\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ssh -o HostkeyAlgorithms=+ssh-rsa -o PubkeyAcceptedAlgorithms=+ssh-rsa user@192.168.1.1<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">(2)\u3001\u6c38\u4e45\u89e3\u51b3\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7f16\u8f91\uff08\u6216\u65b0\u5efa\uff09<code>~\/.ssh\/config<\/code>\uff0c\u52a0\u4e00\u6bb5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Host 192.168.1.1\n    HostkeyAlgorithms +ssh-rsa\n    PubkeyAcceptedAlgorithms +ssh-rsa<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u6ce8\uff1a\u8fd9\u53ea\u662f<strong>\u5ba2\u6237\u7aef\u59a5\u534f<\/strong>\uff0c\u6bcf\u6b21\u8fde\u63a5\u4ecd\u4f7f\u7528 SHA-1 \u7b7e\u540d\u7684 RSA \u4e3b\u673a\u5bc6\u94a5\uff1b<strong>\u957f\u671f\u65b9\u6848\u5e94\u5347\u7ea7\u670d\u52a1\u7aef OpenSSH<\/strong>\uff08\u81f3\u5c11 7.4+\uff09\u6216\u6362 Ed25519 \u4e3b\u673a\u5bc6\u94a5<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-purple-color\">\u95ee\u9898<\/mark><\/strong>4: SSH\u8981\u8fde\u63a5\u7684\u8fdc\u7a0b\u673a\u5668\u7aef\u53e3\u4e0d\u662f\u9ed8\u8ba4\u768422\u7aef\u53e3\uff0c\u6bd4\u5982\uff1a2222\u7aef\u53e3<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7f16\u8f91\uff08\u6216\u65b0\u5efa\uff09<code>~\/.ssh\/config<\/code>\uff0c\u52a0\u4e00\u6bb5\uff0c\u591a\u6761\u5c31\u52a0\u591a\u4e2a\uff0c\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Host 192.168.1.1\n    Port 22222\nHost 192.168.51.2\n    Port 22333\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-purple-color\">\u95ee\u98985\uff1a<\/mark><\/strong> \u5f53\u524d\u673a\u5668\u751f\u6210\u7684\u79c1\u94a5\u548c\u516c\u94a5\u8ddf\u5f53\u524d\u673a\u5668\u6709\u6ca1\u6709\u5173\u7cfb\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b54\uff1a\u6ca1\u5173\u7cfb\uff0c\u673a\u5668\u53ea\u662f\u8d1f\u8d23\u751f\u6210\u516c\u94a5\u548c\u79c1\u94a5\uff0c\u5b9e\u9645\u8fde\u63a5\u7684\u65f6\u5019\u662f\u628a\u516c\u94a5\u5185\u5bb9\u8ffd\u52a0\u5230\u8fdc\u7a0b\u673a\u5668\u7684username\/.ssh\/authorized_keys\u6587\u4ef6\u4e2d\uff0c\u7136\u540e\u79c1\u94a5\u901a\u8fc7\u7528\u6237\u540d\u627e\u5230\u516c\u94a5\u914d\u5bf9\u5b9e\u73b0\u8fde\u63a5\uff0c\u8ddf\u5f53\u524d\u673a\u5668\u6ca1\u5173\u7cfb\uff0c<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-purple-color\">\u56e0\u6b64\uff0c\u4ece\u4efb\u4f55\u4e00\u53f0\u673a\u5668\u673a\u5668copy\u673a\u5668\u516c\u94a5\u548c\u79c1\u94a5\uff0c\u628a\u79c1\u94a5\u653e\u5728\u5f53\u524d\u7528\u6237\u7684username\/.ssh\/\u76ee\u5f55\u4e0b\uff0c\u7136\u540e\u628a\u516c\u94a5\u653e\u5728\u8fdc\u7a0b\u673a\u5668\u7684authorized_key\u4e2d\uff0c\u90fd\u80fd\u5b9e\u73b0\u8fde\u63a5\u6210\u529f<\/mark><\/strong>\uff0c\u6ce8\u610f\u6743\u9650\u63a7\u5236<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u4f7f\u7528\u5bc6\u7801\u8fdb\u884c\u53e3\u4ee4\u9a8c\u8bc1\u7ec8\u5f52\u5b58\u5728\u7740\u88ab\u66b4\u529b\u7834\u89e3\u6216\u55c5\u63a2\u622a\u83b7\u7684 \u98ce\u9669\u3002\u5982\u679c\u6b63\u786e\u914d\u7f6e\u4e86\u5bc6\u94a5\u9a8c\u8bc1\u65b9\u5f0f\uff0c\u90a3\u4e48 ss [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":804,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34,22],"tags":[75],"class_list":["post-797","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-linux","category-server","tag-ssh"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":8}},"_links":{"self":[{"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/posts\/797","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/comments?post=797"}],"version-history":[{"count":14,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/posts\/797\/revisions"}],"predecessor-version":[{"id":20712,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/posts\/797\/revisions\/20712"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/media\/804"}],"wp:attachment":[{"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/media?parent=797"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/categories?post=797"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/tags?post=797"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}