{"id":14081,"date":"2025-04-18T20:52:49","date_gmt":"2025-04-18T12:52:49","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/14081.html"},"modified":"2025-04-18T20:52:49","modified_gmt":"2025-04-18T12:52:49","slug":"ssh%e5%8e%9f%e7%90%86%e4%b8%8e%e5%ae%9e%e6%88%98%ef%bc%9a%e5%af%86%e9%92%a5%e8%ae%a4%e8%af%81%e5%ae%9e%e7%8e%b0%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%85%8d%e5%af%86%e7%99%bb%e5%bd%95","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/14081.html","title":{"rendered":"SSH\u539f\u7406\u4e0e\u5b9e\u6218\uff1a\u5bc6\u94a5\u8ba4\u8bc1\u5b9e\u73b0\u670d\u52a1\u5668\u514d\u5bc6\u767b\u5f55"},"content":{"rendered":"<\/p>\n<h4>\u6587\u7ae0\u76ee\u5f55<\/h4>\n<ul>\n<li>\u4e3a\u5565\u9700\u8981\u514d\u5bc6\u767b\u5f55\u5462<\/li>\n<li>\n<ul>\n<li>\u4e00\u3001SSH\u5de5\u4f5c\u539f\u7406\u7b80\u8ff0<\/li>\n<li>\n<ul>\n<li>1. \u52a0\u5bc6\u4e09\u5251\u5ba2<\/li>\n<li>2. \u8fde\u63a5\u5efa\u7acb\u6d41\u7a0b<\/li>\n<\/ul>\n<\/li>\n<li>\u4e8c\u3001\u5173\u952e\u6587\u4ef6\u89e3\u6790<\/li>\n<li>\u4e09\u3001\u4e24\u53f0\u670d\u52a1\u5668\u514d\u5bc6\u767b\u5f55\u5b9e\u6218<\/li>\n<li>\n<ul>\n<li>\u73af\u5883\u51c6\u5907<\/li>\n<li>\u6b65\u9aa41&#xff1a;\u751f\u6210\u5bc6\u94a5\u5bf9&#xff08;\u670d\u52a1\u5668A&#xff09;<\/li>\n<li>\u6b65\u9aa42&#xff1a;\u90e8\u7f72\u516c\u94a5\u5230\u670d\u52a1\u5668B<\/li>\n<li>\u6b65\u9aa43&#xff1a;\u914d\u7f6e\u5feb\u6377\u8fde\u63a5&#xff08;\u670d\u52a1\u5668A&#xff09;<\/li>\n<li>\u6b65\u9aa44&#xff1a;\u6d4b\u8bd5\u514d\u5bc6\u767b\u5f55<\/li>\n<\/ul>\n<\/li>\n<li>\u56db\u3001\u5b89\u5168\u589e\u5f3a\u63aa\u65bd<\/li>\n<li>\n<ul>\n<li>1. \u5bc6\u94a5\u9632\u62a4<\/li>\n<li>2. \u670d\u52a1\u5668\u52a0\u56fa<\/li>\n<\/ul>\n<\/li>\n<li>\u4e94\u3001\u5e38\u89c1\u95ee\u9898\u6392\u67e5<\/li>\n<li>\n<ul>\n<li>\u75c7\u72b6&#xff1a;\u4ecd\u8981\u6c42\u8f93\u5165\u5bc6\u7801<\/li>\n<li>\u75c7\u72b6&#xff1a;Host key verification failed<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>\u4e3a\u5565\u9700\u8981\u514d\u5bc6\u767b\u5f55\u5462<\/h2>\n<p>\u514d\u5bc6\u767b\u5f55\u4e3b\u8981\u662f\u4e3a\u4e86\u65b9\u4fbf\u548c\u63d0\u9ad8\u6548\u7387\u3002\u60f3\u8c61\u4e00\u4e0b\u4f60\u6bcf\u5929\u90fd\u8981\u53bb\u4e00\u4e2a\u5730\u65b9&#xff0c;\u6bd4\u5982\u4f60\u6bcf\u5929\u90fd\u8981\u8fdb\u5165\u81ea\u5df1\u7684\u623f\u95f4\u3002\u5982\u679c\u6bcf\u6b21\u8fdb\u95e8\u90fd\u9700\u8981\u627e\u94a5\u5319\u3001\u5f00\u9501&#xff0c;\u4f1a\u6bd4\u8f83\u9ebb\u70e6\u3002\u4f46\u5982\u679c\u4f60\u6709\u4e00\u79cd\u65b9\u6cd5&#xff0c;\u6bd4\u5982\u4eba\u8138\u8bc6\u522b\u6216\u8005\u6307\u7eb9\u8bc6\u522b&#xff0c;\u95e8\u5c31\u80fd\u81ea\u52a8\u6253\u5f00&#xff0c;\u4f60\u5c31\u53ef\u4ee5\u76f4\u63a5\u8fdb\u53bb\u4e86&#xff0c;\u8fd9\u6837\u4f1a\u8282\u7701\u5f88\u591a\u65f6\u95f4\u548c\u7cbe\u529b\u3002<\/p>\n<h3>\u4e00\u3001SSH\u5de5\u4f5c\u539f\u7406\u7b80\u8ff0<\/h3>\n<h4>1. \u52a0\u5bc6\u4e09\u5251\u5ba2<\/h4>\n<ul>\n<li>\u5bf9\u79f0\u52a0\u5bc6&#xff1a;AES\u7b97\u6cd5\u52a0\u5bc6\u901a\u4fe1\u5185\u5bb9&#xff08;\u901f\u5ea6\u5feb&#xff09;<\/li>\n<li>\u975e\u5bf9\u79f0\u52a0\u5bc6&#xff1a;RSA\/ECDSA\u7b97\u6cd5\u9a8c\u8bc1\u8eab\u4efd&#xff08;\u5b89\u5168\u6027\u9ad8&#xff09;<\/li>\n<li>\u54c8\u5e0c\u6821\u9a8c&#xff1a;SHA\u7b97\u6cd5\u786e\u4fdd\u6570\u636e\u5b8c\u6574\u6027&#xff08;\u9632\u7be1\u6539&#xff09;<\/li>\n<\/ul>\n<h4>2. \u8fde\u63a5\u5efa\u7acb\u6d41\u7a0b<\/h4>\n<li>TCP\u4e09\u6b21\u63e1\u624b\u5efa\u7acb\u8fde\u63a5<\/li>\n<li>\u4ea4\u6362\u534f\u8bae\u7248\u672c\u548c\u52a0\u5bc6\u7b97\u6cd5<\/li>\n<li>\u670d\u52a1\u5668\u53d1\u9001\u516c\u94a5\u7ed9\u5ba2\u6237\u7aef<\/li>\n<li>\u751f\u6210\u4e34\u65f6\u4f1a\u8bdd\u5bc6\u94a5<\/li>\n<li>\u5ba2\u6237\u7aef\u53d1\u8d77\u8ba4\u8bc1\u8bf7\u6c42<\/li>\n<li>\u5efa\u7acb\u52a0\u5bc6\u901a\u4fe1\u96a7\u9053<\/li>\n<h3>\u4e8c\u3001\u5173\u952e\u6587\u4ef6\u89e3\u6790<\/h3>\n<table>\n<tr>\u6587\u4ef6\u8def\u5f84\u4f5c\u7528\u8bf4\u660e\u63a8\u8350\u6743\u9650<\/tr>\n<tbody>\n<tr>\n<td>~\/.ssh\/known_hosts<\/td>\n<td>\u5b58\u50a8\u5df2\u9a8c\u8bc1\u8fc7\u7684\u4e3b\u673a\u516c\u94a5\u6307\u7eb9<\/td>\n<td>644<\/td>\n<\/tr>\n<tr>\n<td>~\/.ssh\/authorized_keys<\/td>\n<td>\u5b58\u50a8\u5141\u8bb8\u767b\u5f55\u7684\u516c\u94a5\u5217\u8868<\/td>\n<td>600<\/td>\n<\/tr>\n<tr>\n<td>~\/.ssh\/config<\/td>\n<td>\u5ba2\u6237\u7aef\u8fde\u63a5\u914d\u7f6e\u6a21\u677f<\/td>\n<td>600<\/td>\n<\/tr>\n<tr>\n<td>~\/.ssh\/id_ed25519<\/td>\n<td>\u7528\u6237\u7684ED25519\u79c1\u94a5&#xff08;\u7edd\u4e0d\u53ef\u6cc4\u9732&#xff09;<\/td>\n<td>600<\/td>\n<\/tr>\n<tr>\n<td>~\/.ssh\/id_ed25519.pub<\/td>\n<td>\u7528\u6237\u7684ED25519\u516c\u94a5&#xff08;\u9700\u8981\u5206\u53d1&#xff09;<\/td>\n<td>644<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u4e09\u3001\u4e24\u53f0\u670d\u52a1\u5668\u514d\u5bc6\u767b\u5f55\u5b9e\u6218<\/h3>\n<h4>\u73af\u5883\u51c6\u5907<\/h4>\n<ul>\n<li>\u670d\u52a1\u5668A&#xff1a;\u8df3\u677f\u673a&#xff08;IP&#xff1a;192.168.1.100&#xff09;<\/li>\n<li>\u670d\u52a1\u5668B&#xff1a;\u76ee\u6807\u673a&#xff08;IP&#xff1a;192.168.1.200&#xff09;<\/li>\n<li>\u7528\u6237\u8d26\u53f7&#xff1a;oper<\/li>\n<\/ul>\n<h4>\u6b65\u9aa41&#xff1a;\u751f\u6210\u5bc6\u94a5\u5bf9&#xff08;\u670d\u52a1\u5668A&#xff09;<\/h4>\n<p><span class=\"token comment\"># \u4f7f\u7528\u66f4\u5b89\u5168\u7684ED25519\u7b97\u6cd5<\/span><br \/>\nssh-keygen -t ed25519 -a <span class=\"token number\">100<\/span> -C <span class=\"token string\">&#034;oper&#064;jumpserver&#034;<\/span> -f ~\/.ssh\/cluster_key<\/p>\n<p><span class=\"token comment\"># \u751f\u6210\u7ed3\u679c&#xff1a;<\/span><br \/>\n<span class=\"token comment\"># &#8211; cluster_key \u2192 \u79c1\u94a5&#xff08;\u76f8\u5f53\u4e8e\u94a5\u5319&#xff09;<\/span><br \/>\n<span class=\"token comment\"># &#8211; cluster_key.pub \u2192 \u516c\u94a5&#xff08;\u76f8\u5f53\u4e8e\u9501\u82af&#xff09;<\/span><\/p>\n<h4>\u6b65\u9aa42&#xff1a;\u90e8\u7f72\u516c\u94a5\u5230\u670d\u52a1\u5668B<\/h4>\n<p><span class=\"token comment\"># \u65b9\u6cd5\u4e00&#xff1a;\u81ea\u52a8\u90e8\u7f72&#xff08;\u9700\u8981\u5f53\u524d\u80fd\u5bc6\u7801\u767b\u5f55&#xff09;<\/span><br \/>\nssh-copy-id -i ~\/.ssh\/cluster_key.pub oper&#064;192.168.1.200<\/p>\n<p><span class=\"token comment\"># \u65b9\u6cd5\u4e8c&#xff1a;\u624b\u52a8\u90e8\u7f72&#xff08;\u9002\u5408\u65e0\u5bc6\u7801\u767b\u5f55\u73af\u5883&#xff09;<\/span><br \/>\n<span class=\"token function\">cat<\/span> ~\/.ssh\/cluster_key.pub <span class=\"token operator\">|<\/span> <span class=\"token function\">ssh<\/span> oper&#064;192.168.1.200 <span class=\"token string\">&#034;mkdir -p ~\/.ssh &amp;&amp; chmod 700 ~\/.ssh &amp;&amp; cat &gt;&gt; ~\/.ssh\/authorized_keys &amp;&amp; chmod 600 ~\/.ssh\/authorized_keys&#034;<\/span><\/p>\n<h4>\u6b65\u9aa43&#xff1a;\u914d\u7f6e\u5feb\u6377\u8fde\u63a5&#xff08;\u670d\u52a1\u5668A&#xff09;<\/h4>\n<p><span class=\"token function\">vim<\/span> ~\/.ssh\/config<\/p>\n<p><span class=\"token comment\"># \u6dfb\u52a0\u4ee5\u4e0b\u5185\u5bb9<\/span><br \/>\nHost db-server<br \/>\n    HostName <span class=\"token number\">192.168<\/span>.1.200<br \/>\n    User oper<br \/>\n    Port <span class=\"token number\">22<\/span><br \/>\n    IdentityFile ~\/.ssh\/cluster_key<br \/>\n    StrictHostKeyChecking <span class=\"token function\">yes<\/span><br \/>\n    ServerAliveInterval <span class=\"token number\">30<\/span><\/p>\n<h4>\u6b65\u9aa44&#xff1a;\u6d4b\u8bd5\u514d\u5bc6\u767b\u5f55<\/h4>\n<p><span class=\"token comment\"># \u666e\u901a\u65b9\u5f0f\u6d4b\u8bd5<\/span><br \/>\n<span class=\"token function\">ssh<\/span> -i ~\/.ssh\/cluster_key oper&#064;192.168.1.200<\/p>\n<p><span class=\"token comment\"># \u4f7f\u7528\u914d\u7f6e\u522b\u540d\u6d4b\u8bd5<\/span><br \/>\n<span class=\"token function\">ssh<\/span> db-server<\/p>\n<p><span class=\"token comment\"># \u9884\u671f\u7ed3\u679c&#xff1a;\u76f4\u63a5\u8fdb\u5165\u670d\u52a1\u5668B\u7684\u7ec8\u7aef<\/span><\/p>\n<h3>\u56db\u3001\u5b89\u5168\u589e\u5f3a\u63aa\u65bd<\/h3>\n<h4>1. \u5bc6\u94a5\u9632\u62a4<\/h4>\n<p><span class=\"token comment\"># \u7ed9\u79c1\u94a5\u52a0\u5bc6\u4fdd\u62a4<\/span><br \/>\nssh-keygen -p -f ~\/.ssh\/cluster_key<\/p>\n<p><span class=\"token comment\"># \u4f7f\u7528ssh-agent\u7ba1\u7406\u5bc6\u94a5<\/span><br \/>\n<span class=\"token builtin class-name\">eval<\/span> <span class=\"token variable\"><span class=\"token variable\">$(<\/span>ssh-agent<span class=\"token variable\">)<\/span><\/span><br \/>\nssh-add ~\/.ssh\/cluster_key<\/p>\n<h4>2. \u670d\u52a1\u5668\u52a0\u56fa<\/h4>\n<p><span class=\"token comment\"># \u4fee\u6539SSH\u914d\u7f6e\u6587\u4ef6&#xff08;\/etc\/ssh\/sshd_config&#xff09;<\/span><br \/>\nPasswordAuthentication no         <span class=\"token comment\"># \u7981\u7528\u5bc6\u7801\u767b\u5f55<\/span><br \/>\nPermitRootLogin no                <span class=\"token comment\"># \u7981\u6b62root\u767b\u5f55<\/span><br \/>\nMaxAuthTries <span class=\"token number\">3<\/span>                    <span class=\"token comment\"># \u9650\u5236\u5c1d\u8bd5\u6b21\u6570<\/span><br \/>\nClientAliveInterval <span class=\"token number\">300<\/span>           <span class=\"token comment\"># \u8d85\u65f6\u81ea\u52a8\u65ad\u5f00<\/span><\/p>\n<h3>\u4e94\u3001\u5e38\u89c1\u95ee\u9898\u6392\u67e5<\/h3>\n<h4>\u75c7\u72b6&#xff1a;\u4ecd\u8981\u6c42\u8f93\u5165\u5bc6\u7801<\/h4>\n<p><span class=\"token comment\"># \u68c0\u67e5\u4e09\u90e8\u66f2<\/span><br \/>\n<span class=\"token number\">1<\/span>. \u670d\u52a1\u5668B\u7684~\/.ssh\/authorized_keys\u6743\u9650\u662f\u5426\u4e3a600<br \/>\n<span class=\"token number\">2<\/span>. \u670d\u52a1\u5668B\u7684~\/.ssh\u76ee\u5f55\u6743\u9650\u662f\u5426\u4e3a700<br \/>\n<span class=\"token number\">3<\/span>. \u670d\u52a1\u5668A\u7684\u79c1\u94a5\u6587\u4ef6\u6743\u9650\u662f\u5426\u4e3a600<\/p>\n<p><span class=\"token comment\"># SELinux\u95ee\u9898\u5904\u7406<\/span><br \/>\nrestorecon -Rv ~\/.ssh<\/p>\n<h4>\u75c7\u72b6&#xff1a;Host key verification failed<\/h4>\n<p><span class=\"token comment\"># \u6e05\u9664\u65e7\u6307\u7eb9<\/span><br \/>\nssh-keygen -R <span class=\"token number\">192.168<\/span>.1.200<\/p>\n<hr 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