{"id":16975,"date":"2025-04-18T23:24:23","date_gmt":"2025-04-18T15:24:23","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/16975.html"},"modified":"2025-04-18T23:24:23","modified_gmt":"2025-04-18T15:24:23","slug":"linux%e5%ae%9e%e7%8e%b0%e5%9c%a8%e4%b8%80%e5%8f%b0%e6%9c%8d%e5%8a%a1%e5%99%a8ssh%e5%85%8d%e5%af%86%e7%99%bb%e5%bd%95%e5%8f%a6%e5%a4%96%e4%b8%80%e5%8f%b0%e6%9c%8d%e5%8a%a1%e5%99%a8","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/16975.html","title":{"rendered":"Linux\u5b9e\u73b0\u5728\u4e00\u53f0\u670d\u52a1\u5668ssh\u514d\u5bc6\u767b\u5f55\u53e6\u5916\u4e00\u53f0\u670d\u52a1\u5668"},"content":{"rendered":"<p>\u5728Linux\u7cfb\u7edf\u4e2d&#xff0c;\u5b9e\u73b0\u4e00\u53f0\u670d\u52a1\u5668\u901a\u8fc7SSH\u514d\u5bc6\u767b\u5f55\u53e6\u5916\u4e00\u53f0\u670d\u52a1\u5668&#xff0c;\u901a\u5e38\u4f7f\u7528\u7684\u662fSSH\u5bc6\u94a5\u8ba4\u8bc1\u65b9\u5f0f\u3002\u4ee5\u4e0b\u662f\u8be6\u7ec6\u7684\u6b65\u9aa4&#xff1a;<\/p>\n<li>\u751f\u6210SSH\u5bc6\u94a5\u5bf9 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\u7cfb\u7edf\u4f1a\u63d0\u793a\u4f60\u8f93\u5165\u76ee\u6807\u670d\u52a1\u5668\u7684\u7528\u6237\u5bc6\u7801&#xff0c;\u4ee5\u9a8c\u8bc1\u8eab\u4efd\u3002\u9a8c\u8bc1\u6210\u529f\u540e&#xff0c;\u516c\u94a5\u5c31\u4f1a\u88ab\u590d\u5236\u5230\u76ee\u6807\u670d\u52a1\u5668\u7684~\/.ssh\/authorized_keys\u6587\u4ef6\u4e2d\u3002<\/p>\n<li>\u9a8c\u8bc1\u514d\u5bc6\u767b\u5f55 \u73b0\u5728&#xff0c;\u4f60\u53ef\u4ee5\u5c1d\u8bd5\u4ece\u53d1\u8d77SSH\u767b\u5f55\u7684\u670d\u52a1\u5668\u8fde\u63a5\u5230\u76ee\u6807\u670d\u52a1\u5668&#xff0c;\u800c\u65e0\u9700\u8f93\u5165\u5bc6\u7801&#xff1a;<\/li>\n<p>bash Copy Code ssh user&#064;target_server_ip \u5982\u679c\u4e00\u5207\u6b63\u5e38&#xff0c;\u4f60\u5e94\u8be5\u80fd\u591f\u76f4\u63a5\u767b\u5f55\u5230\u76ee\u6807\u670d\u52a1\u5668&#xff0c;\u800c\u65e0\u9700\u8f93\u5165\u5bc6\u7801\u3002<\/p>\n<p>\u6ce8\u610f\u4e8b\u9879 \u786e\u4fdd<sub>\/.ssh\u76ee\u5f55\u548c<\/sub>\/.ssh\/authorized_keys\u6587\u4ef6\u7684\u6743\u9650\u8bbe\u7f6e\u6b63\u786e\u3002\u901a\u5e38&#xff0c;<sub>\/.ssh\u76ee\u5f55\u7684\u6743\u9650\u5e94\u4e3a700&#xff0c;<\/sub>\/.ssh\/authorized_keys\u6587\u4ef6\u7684\u6743\u9650\u5e94\u4e3a600\u3002 \u5982\u679c\u76ee\u6807\u670d\u52a1\u5668\u4e0a\u7684SSH\u914d\u7f6e&#xff08;\/etc\/ssh\/sshd_config&#xff09;\u4e2d\u7981\u7528\u4e86PubkeyAuthentication&#xff0c;\u5219\u9700\u8981\u542f\u7528\u5b83\u5e76\u91cd\u542fSSH\u670d\u52a1\u3002 \u5982\u679c\u5728\u5c1d\u8bd5\u514d\u5bc6\u767b\u5f55\u65f6\u9047\u5230\u95ee\u9898&#xff0c;\u53ef\u4ee5\u68c0\u67e5SSH\u670d\u52a1\u7684\u65e5\u5fd7&#xff08;\u901a\u5e38\u4f4d\u4e8e\/var\/log\/auth.log\u6216\/var\/log\/secure&#xff09;\u4ee5\u83b7\u53d6\u66f4\u591a\u4fe1\u606f\u3002 \u901a\u8fc7\u4ee5\u4e0a\u6b65\u9aa4&#xff0c;\u4f60\u5c31\u53ef\u4ee5\u5728Linux\u7cfb\u7edf\u4e2d\u5b9e\u73b0\u4e00\u53f0\u670d\u52a1\u5668\u901a\u8fc7SSH\u514d\u5bc6\u767b\u5f55\u53e6\u5916\u4e00\u53f0\u670d\u52a1\u5668\u4e86\u3002 \u5982\u679c\u5728\u5c1d\u8bd5SSH\u514d\u5bc6\u767b\u5f55\u65f6\u4ecd\u7136\u9700\u8981\u8f93\u5165\u5bc6\u7801&#xff0c;\u786e\u5b9e\u53ef\u80fd\u662f\u7531\u6743\u9650\u95ee\u9898\u3001SSH\u914d\u7f6e\u6587\u4ef6\u8bbe\u7f6e\u4e0d\u5f53\u6216\u65e5\u5fd7\u4e2d\u8bb0\u5f55\u4e86\u9519\u8bef\u4fe1\u606f\u7b49\u539f\u56e0\u5bfc\u81f4\u7684\u3002\u4ee5\u4e0b\u662f\u5bf9\u8fd9\u4e9b\u53ef\u80fd\u95ee\u9898\u7684\u8be6\u7ec6\u68c0\u67e5\u548c\u6392\u67e5\u6b65\u9aa4&#xff1a;<\/p>\n<p>\u6743\u9650\u95ee\u9898\u68c0\u67e5 \u200c\u68c0\u67e5.ssh\u76ee\u5f55\u6743\u9650\u200c&#xff1a; \u5728\u8fdc\u7a0b\u670d\u52a1\u5668\u4e0a&#xff0c;\u4f7f\u7528ls -ld ~\/.ssh\u547d\u4ee4\u68c0\u67e5.ssh\u76ee\u5f55\u7684\u6743\u9650\u3002\u786e\u4fdd\u6743\u9650\u8bbe\u7f6e\u4e3a700&#xff0c;\u8fd9\u8868\u793a\u53ea\u6709\u6240\u6709\u8005\u53ef\u4ee5\u8bfb\u3001\u5199\u548c\u6267\u884c\u8be5\u76ee\u5f55\u3002<\/p>\n<p>\u200c\u68c0\u67e5authorized_keys\u6587\u4ef6\u6743\u9650\u200c&#xff1a; \u540c\u6837\u5728\u8fdc\u7a0b\u670d\u52a1\u5668\u4e0a&#xff0c;\u4f7f\u7528ls -l ~\/.ssh\/authorized_keys\u547d\u4ee4\u68c0\u67e5authorized_keys\u6587\u4ef6\u7684\u6743\u9650\u3002\u786e\u4fdd\u6743\u9650\u8bbe\u7f6e\u4e3a600&#xff0c;\u8fd9\u8868\u793a\u53ea\u6709\u6240\u6709\u8005\u53ef\u4ee5\u8bfb\u548c\u5199\u8be5\u6587\u4ef6\u3002<\/p>\n<p>SSH\u914d\u7f6e\u6587\u4ef6\u68c0\u67e5 \u200c\u6253\u5f00SSH\u914d\u7f6e\u6587\u4ef6\u200c&#xff1a; \u4f7f\u7528\u6587\u672c\u7f16\u8f91\u5668&#xff08;\u5982nano\u6216vim&#xff09;\u6253\u5f00\u8fdc\u7a0b\u670d\u52a1\u5668\u4e0a\u7684\/etc\/ssh\/sshd_config\u6587\u4ef6\u3002<\/p>\n<p>\u200c\u68c0\u67e5\u76f8\u5173\u914d\u7f6e\u9879\u200c&#xff1a; \u786e\u4fdd\u4ee5\u4e0b\u914d\u7f6e\u9879\u5df2\u6b63\u786e\u8bbe\u7f6e&#xff1a;<\/p>\n<p>PubkeyAuthentication yes&#xff1a;\u542f\u7528\u516c\u94a5\u8ba4\u8bc1\u3002 AuthorizedKeysFile .ssh\/authorized_keys&#xff1a;\u6307\u5b9a\u516c\u94a5\u6587\u4ef6\u7684\u8def\u5f84&#xff08;\u901a\u5e38\u9ed8\u8ba4\u8bbe\u7f6e\u5373\u53ef&#xff09;\u3002 PasswordAuthentication no&#xff08;\u53ef\u9009&#xff09;&#xff1a;\u7981\u7528\u5bc6\u7801\u8ba4\u8bc1&#xff0c;\u4ee5\u589e\u5f3a\u5b89\u5168\u6027\u3002\u6ce8\u610f&#xff0c;\u7981\u7528\u5bc6\u7801\u8ba4\u8bc1\u540e&#xff0c;\u7528\u6237\u5c06\u53ea\u80fd\u901a\u8fc7\u516c\u94a5\u8ba4\u8bc1\u65b9\u5f0f\u767b\u5f55\u3002 \u200c\u4fdd\u5b58\u5e76\u91cd\u542fSSH\u670d\u52a1\u200c&#xff1a; \u4fee\u6539\u914d\u7f6e\u6587\u4ef6\u540e&#xff0c;\u4fdd\u5b58\u66f4\u6539\u5e76\u91cd\u542fSSH\u670d\u52a1\u4ee5\u4f7f\u66f4\u6539\u751f\u6548\u3002\u53ef\u4ee5\u4f7f\u7528sudo systemctl restart sshd\u547d\u4ee4\u6765\u91cd\u542fSSH\u670d\u52a1\u3002<\/p>\n<p>\u65e5\u5fd7\u6392\u67e5 \u200c\u67e5\u770bSSH\u65e5\u5fd7\u200c&#xff1a; \u4f7f\u7528sudo tail -f \/var\/log\/auth.log\u547d\u4ee4\u5b9e\u65f6\u67e5\u770b\u8fdc\u7a0b\u670d\u52a1\u5668\u7684SSH\u65e5\u5fd7\u3002\u5c1d\u8bd5\u518d\u6b21\u8fdb\u884cSSH\u767b\u5f55&#xff0c;\u5e76\u89c2\u5bdf\u65e5\u5fd7\u4e2d\u662f\u5426\u6709\u9519\u8bef\u4fe1\u606f\u6216\u62d2\u7edd\u767b\u5f55\u7684\u8bb0\u5f55\u3002<\/p>\n<p>\u200c\u5206\u6790\u65e5\u5fd7\u4fe1\u606f\u200c&#xff1a; \u6839\u636e\u65e5\u5fd7\u4e2d\u7684\u9519\u8bef\u4fe1\u606f&#xff0c;\u8fdb\u4e00\u6b65\u5206\u6790\u95ee\u9898\u539f\u56e0\u3002\u5e38\u89c1\u7684\u9519\u8bef\u4fe1\u606f\u53ef\u80fd\u5305\u62ec\u516c\u94a5\u4e0d\u5339\u914d\u3001\u8ba4\u8bc1\u5931\u8d25\u3001\u6743\u9650\u95ee\u9898\u7b49\u3002<\/p>\n<p>\u5176\u4ed6\u6ce8\u610f\u4e8b\u9879 \u200c\u786e\u4fdd\u516c\u94a5\u6b63\u786e\u200c&#xff1a;\u5728\u53d1\u8d77SSH\u767b\u5f55\u7684\u670d\u52a1\u5668\u4e0a&#xff0c;\u4f7f\u7528cat <sub>\/.ssh\/id_rsa.pub\u547d\u4ee4\u67e5\u770b\u516c\u94a5\u5185\u5bb9&#xff0c;\u786e\u4fdd\u5df2\u6b63\u786e\u590d\u5236\u5230\u8fdc\u7a0b\u670d\u52a1\u5668\u7684<\/sub>\/.ssh\/authorized_keys\u6587\u4ef6\u4e2d\u3002 \u200c\u68c0\u67e5SELinux\u72b6\u6001\u200c&#xff1a;\u5982\u679c\u8fdc\u7a0b\u670d\u52a1\u5668\u4e0a\u542f\u7528\u4e86SELinux&#xff0c;\u53ef\u80fd\u9700\u8981\u68c0\u67e5SELinux\u7684\u7b56\u7565\u8bbe\u7f6e\u662f\u5426\u5141\u8bb8SSH\u516c\u94a5\u8ba4\u8bc1\u3002\u53ef\u4ee5\u4f7f\u7528getenforce\u547d\u4ee4\u67e5\u770bSELinux\u7684\u72b6\u6001&#xff0c;\u5e76\u4f7f\u7528sestatus\u547d\u4ee4\u67e5\u770b\u8be6\u7ec6\u7684SELinux\u7b56\u7565\u4fe1\u606f\u3002 \u200c\u9632\u706b\u5899\u8bbe\u7f6e\u200c&#xff1a;\u786e\u4fdd\u8fdc\u7a0b\u670d\u52a1\u5668\u7684\u9632\u706b\u5899\u8bbe\u7f6e\u5141\u8bb8SSH\u8fde\u63a5\u3002\u53ef\u4ee5\u4f7f\u7528sudo iptables -L -n\u6216sudo firewall-cmd &#8211;list-all\u547d\u4ee4\u67e5\u770b\u9632\u706b\u5899\u89c4\u5219\u3002 \u901a\u8fc7\u4ee5\u4e0a\u6b65\u9aa4&#xff0c;\u4f60\u5e94\u8be5\u80fd\u591f\u68c0\u67e5\u548c\u6392\u67e5SSH\u514d\u5bc6\u767b\u5f55\u65f6\u4ecd\u7136\u9700\u8981\u8f93\u5165\u5bc6\u7801\u7684\u95ee\u9898&#xff0c;\u5e76\u627e\u5230\u76f8\u5e94\u7684\u89e3\u51b3\u65b9\u6848\u3002\u5982\u679c\u95ee\u9898\u4ecd\u7136\u5b58\u5728&#xff0c;\u53ef\u80fd\u9700\u8981\u8fdb\u4e00\u6b65\u68c0\u67e5\u7f51\u7edc\u8bbe\u7f6e\u3001SSH\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7684\u7248\u672c\u517c\u5bb9\u6027\u7b49\u5176\u4ed6\u56e0\u7d20\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb766\u6b21\uff0c\u70b9\u8d5e9\u6b21\uff0c\u6536\u85cf11\u6b21\u3002\u540c\u6837\u5728\u8fdc\u7a0b\u670d\u52a1\u5668\u4e0a\uff0c\u4f7f\u7528ls -l ~\/.ssh\/authorized_keys\u547d\u4ee4\u68c0\u67e5authorized_keys\u6587\u4ef6\u7684\u6743\u9650\u3002\u5982\u679c\u76ee\u6807\u670d\u52a1\u5668\u4e0a\u7684SSH\u914d\u7f6e\uff08\/etc\/ssh\/sshd_config\uff09\u4e2d\u7981\u7528\u4e86PubkeyAuthentication\uff0c\u5219\u9700\u8981\u542f\u7528\u5b83\u5e76\u91cd\u542fSSH\u670d\u52a1\u3002\u5982\u679c\u5728\u5c1d\u8bd5\u514d\u5bc6\u767b\u5f55\u65f6\u9047\u5230\u95ee\u9898\uff0c\u53ef\u4ee5\u68c0\u67e5SSH\u670d\u52a1\u7684\u65e5\u5fd7\uff08\u901a\u5e38\u4f4d\u4e8e\/var\/log\/auth.log\u6216\/var\/log\/secure\uff09\u4ee5\u83b7\u53d6\u66f4\u591a\u4fe1\u606f\u3002\u5728\u8fdc\u7a0b\u670d\u52a1\u5668\u4e0a\uff0c\u4f7f\u7528ls -ld 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