{"id":44486,"date":"2024-10-06T15:58:15","date_gmt":"2024-10-06T07:58:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/44486\/"},"modified":"2024-10-06T15:58:15","modified_gmt":"2024-10-06T07:58:15","slug":"linux-%e4%bc%ba%e6%9c%8d%e5%99%a8%e5%ae%89%e5%85%a8%e7%ad%96%e7%95%a5%e6%8a%80%e5%b7%a7%ef%bc%9a%e4%ba%86%e8%a7%a3%e6%96%b0%e7%9a%84%e6%bc%8f%e6%b4%9e","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/44486\/","title":{"rendered":"Linux \u4f3a\u670d\u5668\u5b89\u5168\u7b56\u7565\u6280\u5de7\uff1a\u4e86\u89e3\u65b0\u7684\u6f0f\u6d1e"},"content":{"rendered":"<h1 id=\"linux-%e4%bc%ba%e6%9c%8d%e5%99%a8%e5%ae%89%e5%85%a8%e7%ad%96%e7%95%a5%e6%8a%80%e5%b7%a7%ef%bc%9a%e4%ba%86%e8%a7%a3%e6%96%b0%e7%9a%84%e6%bc%8f%e6%b4%9e-rRKnmdZRtJ\">Linux \u4f3a\u670d\u5668\u5b89\u5168\u7b56\u7565\u6280\u5de7\uff1a\u4e86\u89e3\u65b0\u7684\u6f0f\u6d1e<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u4f4d\u6642\u4ee3\uff0cLinux \u4f3a\u670d\u5668\u56e0\u5176\u7a69\u5b9a\u6027\u548c\u5b89\u5168\u6027\u800c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u696d\u52d9\u74b0\u5883\u3002\u7136\u800c\uff0c\u96a8\u8457\u6280\u8853\u7684\u9032\u6b65\uff0c\u65b0\u7684\u5b89\u5168\u6f0f\u6d1e\u4e0d\u65b7\u51fa\u73fe\uff0c\u9019\u4f7f\u5f97\u4f3a\u670d\u5668\u7684\u5b89\u5168\u6027\u6210\u70ba\u4e00\u500b\u4e0d\u5bb9\u5ffd\u8996\u7684\u8b70\u984c\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u4e00\u4e9b\u6709\u6548\u7684\u5b89\u5168\u7b56\u7565\u548c\u6280\u5de7\uff0c\u4ee5\u5e6b\u52a9\u7ba1\u7406\u54e1\u66f4\u597d\u5730\u4fdd\u8b77\u5176 Linux \u4f3a\u670d\u5668\u3002<\/p>\n<h2 id=\"1-%e5%ae%9a%e6%9c%9f%e6%9b%b4%e6%96%b0%e7%b3%bb%e7%b5%b1%e5%92%8c%e6%87%89%e7%94%a8%e7%a8%8b%e5%bc%8f-rRKnmdZRtJ\">1. \u5b9a\u671f\u66f4\u65b0\u7cfb\u7d71\u548c\u61c9\u7528\u7a0b\u5f0f<\/h2>\n<p>\u4fdd\u6301\u7cfb\u7d71\u548c\u61c9\u7528\u7a0b\u5f0f\u7684\u6700\u65b0\u72c0\u614b\u662f\u9632\u6b62\u5b89\u5168\u6f0f\u6d1e\u7684\u7b2c\u4e00\u6b65\u3002\u8a31\u591a\u6f0f\u6d1e\u90fd\u662f\u7531\u65bc\u904e\u6642\u7684\u8edf\u9ad4\u7248\u672c\u800c\u7522\u751f\u7684\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u53ef\u4ee5\u8f15\u9b06\u66f4\u65b0\u7cfb\u7d71\uff1a<\/p>\n<pre><code>sudo apt update &amp;&amp; sudo apt upgrade<\/code><\/pre>\n<p>\u6b64\u5916\uff0c\u5c0d\u65bc\u7279\u5b9a\u61c9\u7528\u7a0b\u5f0f\uff0c\u5efa\u8b70\u5b9a\u671f\u6aa2\u67e5\u5176\u5b98\u65b9\u7db2\u7ad9\u6216\u793e\u7fa4\u8ad6\u58c7\uff0c\u4ee5\u7372\u53d6\u6700\u65b0\u7684\u5b89\u5168\u66f4\u65b0\u548c\u88dc\u4e01\u3002<\/p>\n<h2 id=\"2-%e5%af%a6%e6%96%bd%e9%98%b2%e7%81%ab%e7%89%86%e5%92%8c%e5%85%a5%e4%be%b5%e6%aa%a2%e6%b8%ac%e7%b3%bb%e7%b5%b1-rRKnmdZRtJ\">2. \u5be6\u65bd\u9632\u706b\u7246\u548c\u5165\u4fb5\u6aa2\u6e2c\u7cfb\u7d71<\/h2>\n<p>\u9632\u706b\u7246\u662f\u4fdd\u8b77\u4f3a\u670d\u5668\u7684\u91cd\u8981\u5de5\u5177\u3002\u4f7f\u7528 <code>iptables<\/code> \u6216 <code>ufw<\/code> \u7b49\u5de5\u5177\uff0c\u53ef\u4ee5\u8a2d\u7f6e\u898f\u5247\u4f86\u9650\u5236\u4e0d\u5fc5\u8981\u7684\u6d41\u91cf\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u547d\u4ee4\u53ef\u4ee5\u5141\u8a31 SSH \u9023\u63a5\u4e26\u963b\u6b62\u5176\u4ed6\u6240\u6709\u6d41\u91cf\uff1a<\/p>\n<pre><code>sudo ufw allow ssh\nsudo ufw enable<\/code><\/pre>\n<p>\u6b64\u5916\uff0c\u5165\u4fb5\u6aa2\u6e2c\u7cfb\u7d71\uff08\u5982 <code>Snort<\/code> \u6216 <code>OSSEC<\/code>\uff09\u53ef\u4ee5\u5e6b\u52a9\u76e3\u63a7\u4f3a\u670d\u5668\u7684\u6d3b\u52d5\uff0c\u53ca\u6642\u767c\u73fe\u53ef\u7591\u884c\u70ba\u3002<\/p>\n<h2 id=\"3-%e4%bd%bf%e7%94%a8%e5%bc%b7%e5%af%86%e7%a2%bc%e5%92%8c%e9%9b%99%e9%87%8d%e8%ba%ab%e4%bb%bd%e9%a9%97%e8%ad%89-rRKnmdZRtJ\">3. \u4f7f\u7528\u5f37\u5bc6\u78bc\u548c\u96d9\u91cd\u8eab\u4efd\u9a57\u8b49<\/h2>\n<p>\u5f37\u5bc6\u78bc\u662f\u4fdd\u8b77\u4f3a\u670d\u5668\u7684\u57fa\u672c\u8981\u6c42\u3002\u5efa\u8b70\u4f7f\u7528\u5305\u542b\u5927\u5c0f\u5beb\u5b57\u6bcd\u3001\u6578\u5b57\u548c\u7279\u6b8a\u5b57\u7b26\u7684\u5bc6\u78bc\uff0c\u4e26\u5b9a\u671f\u66f4\u63db\u3002\u6b64\u5916\uff0c\u555f\u7528\u96d9\u91cd\u8eab\u4efd\u9a57\u8b49\uff082FA\uff09\u53ef\u4ee5\u9032\u4e00\u6b65\u589e\u5f37\u5b89\u5168\u6027\u3002\u8a31\u591a SSH \u5ba2\u6236\u7aef\u548c\u7ba1\u7406\u5de5\u5177\u90fd\u652f\u6301 2FA\uff0c\u9019\u6a23\u5373\u4f7f\u5bc6\u78bc\u88ab\u7834\u89e3\uff0c\u653b\u64ca\u8005\u4ecd\u9700\u7b2c\u4e8c\u5c64\u9a57\u8b49\u624d\u80fd\u8a2a\u554f\u4f3a\u670d\u5668\u3002<\/p>\n<h2 id=\"4-%e9%99%90%e5%88%b6%e7%94%a8%e6%88%b6%e6%ac%8a%e9%99%90-rRKnmdZRtJ\">4. \u9650\u5236\u7528\u6236\u6b0a\u9650<\/h2>\n<p>\u5728 Linux \u7cfb\u7d71\u4e2d\uff0c\u61c9\u6839\u64da\u6700\u5c0f\u6b0a\u9650\u539f\u5247\u4f86\u5206\u914d\u7528\u6236\u6b0a\u9650\u3002\u9019\u610f\u5473\u8457\u7528\u6236\u50c5\u61c9\u7372\u5f97\u57f7\u884c\u5176\u5de5\u4f5c\u6240\u9700\u7684\u6700\u4f4e\u6b0a\u9650\u3002\u4f7f\u7528 <code>sudo<\/code> \u547d\u4ee4\u53ef\u4ee5\u6388\u4e88\u7279\u5b9a\u7528\u6236\u57f7\u884c\u7ba1\u7406\u4efb\u52d9\u7684\u6b0a\u9650\uff0c\u800c\u4e0d\u5fc5\u7d66\u4e88\u4ed6\u5011\u5b8c\u6574\u7684 root \u8a2a\u554f\u6b0a\u9650\u3002<\/p>\n<pre><code>sudo visudo<\/code><\/pre>\n<p>\u5728\u7de8\u8f2f <code>\/etc\/sudoers<\/code> \u6587\u4ef6\u6642\uff0c\u78ba\u4fdd\u53ea\u6388\u4e88\u5fc5\u8981\u7684\u6b0a\u9650\u3002<\/p>\n<h2 id=\"5-%e7%9b%a3%e6%8e%a7%e6%97%a5%e8%aa%8c%e5%92%8c%e7%b3%bb%e7%b5%b1%e6%b4%bb%e5%8b%95-rRKnmdZRtJ\">5. \u76e3\u63a7\u65e5\u8a8c\u548c\u7cfb\u7d71\u6d3b\u52d5<\/h2>\n<p>\u5b9a\u671f\u6aa2\u67e5\u7cfb\u7d71\u65e5\u8a8c\u53ef\u4ee5\u5e6b\u52a9\u53ca\u65e9\u767c\u73fe\u6f5b\u5728\u7684\u5b89\u5168\u554f\u984c\u3002\u4f7f\u7528 <code>logwatch<\/code> \u6216 <code>fail2ban<\/code> \u7b49\u5de5\u5177\uff0c\u53ef\u4ee5\u81ea\u52d5\u751f\u6210\u65e5\u8a8c\u5831\u544a\uff0c\u4e26\u5c0d\u53ef\u7591\u6d3b\u52d5\u9032\u884c\u8b66\u5831\u3002<\/p>\n<pre><code>sudo apt install logwatch\nsudo logwatch --detail High --mailto your-email@example.com<\/code><\/pre>\n<h2 id=\"6-%e4%ba%86%e8%a7%a3%e6%9c%80%e6%96%b0%e7%9a%84%e5%ae%89%e5%85%a8%e6%bc%8f%e6%b4%9e-rRKnmdZRtJ\">6. \u4e86\u89e3\u6700\u65b0\u7684\u5b89\u5168\u6f0f\u6d1e<\/h2>\n<p>\u96a8\u8457\u65b0\u6f0f\u6d1e\u7684\u51fa\u73fe\uff0c\u4e86\u89e3\u6700\u65b0\u7684\u5b89\u5168\u5a01\u8105\u81f3\u95dc\u91cd\u8981\u3002\u5efa\u8b70\u5b9a\u671f\u8a2a\u554f\u5b89\u5168\u516c\u544a\u7db2\u7ad9\uff0c\u5982 <a href=\"https:\/\/www.cve.org\/\" rel=\"nofollow noopener\" target=\"_blank\">CVE<\/a> \u548c <a href=\"https:\/\/nvd.nist.gov\/\" rel=\"nofollow noopener\" target=\"_blank\">NVD<\/a>\uff0c\u4ee5\u7372\u53d6\u6700\u65b0\u7684\u6f0f\u6d1e\u8cc7\u8a0a\u548c\u4fee\u88dc\u5efa\u8b70\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-rRKnmdZRtJ\">\u7e3d\u7d50<\/h2>\n<p>Linux \u4f3a\u670d\u5668\u7684\u5b89\u5168\u6027\u662f\u6bcf\u4f4d\u7cfb\u7d71\u7ba1\u7406\u54e1\u5fc5\u9808\u91cd\u8996\u7684\u8ab2\u984c\u3002\u901a\u904e\u5b9a\u671f\u66f4\u65b0\u7cfb\u7d71\u3001\u5be6\u65bd\u9632\u706b\u7246\u3001\u4f7f\u7528\u5f37\u5bc6\u78bc\u3001\u9650\u5236\u7528\u6236\u6b0a\u9650\u3001\u76e3\u63a7\u65e5\u8a8c\u4ee5\u53ca\u4e86\u89e3\u6700\u65b0\u7684\u5b89\u5168\u6f0f\u6d1e\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u63d0\u9ad8\u4f3a\u670d\u5668\u7684\u5b89\u5168\u6027\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u80fd\u548c\u7a69\u5b9a\u6027\u7684\u696d\u52d9\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u4e00\u500b\u91cd\u8981\u7684\u8003\u91cf\u3002\u4e86\u89e3\u548c\u5be6\u65bd\u9019\u4e9b\u5b89\u5168\u7b56\u7565\uff0c\u5c07\u6709\u52a9\u65bc\u4fdd\u8b77\u60a8\u7684\u4f3a\u670d\u5668\u514d\u53d7\u6f5b\u5728\u5a01\u8105\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u638c\u63e1Linux\u4f3a\u670d\u5668\u5b89\u5168\u7b56\u7565\uff0c\u4e86\u89e3\u6700\u65b0\u6f0f\u6d1e\uff0c\u63d0\u5347\u7cfb\u7d71\u9632\u8b77\uff0c\u78ba\u4fdd\u6578\u64da\u5b89\u5168\u8207\u7a69\u5b9a\u904b\u884c\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-44486","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44486","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=44486"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44486\/revisions"}],"predecessor-version":[{"id":44487,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44486\/revisions\/44487"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=44486"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=44486"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=44486"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}