{"id":16553,"date":"2024-01-31T11:50:27","date_gmt":"2024-01-31T03:50:27","guid":{"rendered":"https:\/\/www.varidata.com\/uncategorized-zh-tw\/16553.html"},"modified":"2024-01-31T11:53:11","modified_gmt":"2024-01-31T03:53:11","slug":"how-to-improve-linux-server-security-with-open-source-tools","status":"publish","type":"post","link":"https:\/\/www.varidata.com\/zh-tw\/knowledge-tc\/how-to-improve-linux-server-security-with-open-source-tools\/","title":{"rendered":"\u5982\u4f55\u901a\u904e\u958b\u6e90\u5de5\u5177\u63d0\u9ad8Linux\u4f3a\u670d\u5668\u7684\u5b89\u5168\u6027\uff1f"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row][vc_column][vc_column_text]<img decoding=\"async\" class=\"alignnone size-full wp-image-16536\" src=\"\/wp-content\/uploads\/2024\/01\/vari-blog-2024-01-31.jpg\" alt=\"\u958b\u6e90\u5de5\u5177\" \/><\/p>\n<p>\u5728\u6578\u78bc\u5316\u6642\u4ee3\uff0cLinux\u4f3a\u670d\u5668\u6210\u70ba\u4e86\u4f01\u696d\u548c\u500b\u4eba\u6578\u64da\u5b58\u5132\u7684\u4e2d\u5fc3\u3002\u96a8\u7740\u7db2\u8def\u653b\u64ca\u7684\u65e5\u76ca\u589e\u591a\uff0c\u78ba\u4fdd\u4f3a\u670d\u5668\u7684\u5b89\u5168\u6027\u8b8a\u5f97\u81f3\u95dc\u91cd\u8981\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5e7e\u7a2e\u958b\u6e90\u5de5\u5177\u548c\u6280\u5de7\uff0c\u5e6b\u52a9\u4f60\u63d0\u9ad8Linux\u4f3a\u670d\u5668\u7684\u5b89\u5168\u7d1a\u5225\u3002<\/p>\n<h2><strong>1. \u5b9a\u671f\u66f4\u65b0\u7cfb\u7d71<\/strong><\/h2>\n<p>\u4f3a\u670d\u5668\u7684\u5b89\u5168\u6027\u5f9e\u5b9a\u671f\u66f4\u65b0\u958b\u59cb\u3002\u958b\u767c\u8005\u4e0d\u65b7\u5730\u901a\u904e\u66f4\u65b0\u4f86\u4fee\u88dc\u6f0f\u6d1e\uff0c\u6539\u9032\u7cfb\u7d71\u7a69\u5b9a\u6027\u3002\u70ba\u78ba\u4fdd\u4f3a\u670d\u5668\u64c1\u6709\u6700\u65b0\u7684\u5b89\u5168\u88dc\u4e01\uff0c\u5efa\u8b70\u7d93\u5e38\u57f7\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>sudo apt-get update &amp;&amp; apt-get upgrade<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u5c07\u66f4\u65b0\u8edf\u4f53\u5217\u8868\u4e26\u5b89\u88dd\u6700\u65b0\u7248\u672c\u7684\u8edf\u4f53\u5305\u3002<\/p>\n<h2><strong>2. \u555f\u7528\u4e26\u914d\u7f6e\u9632\u706b\u7246<\/strong><\/h2>\n<p>\u9632\u706b\u7246\u662fLinux\u4f3a\u670d\u5668\u5b89\u5168\u7684\u7b2c\u4e00\u9053\u9632\u7dda\uff0c\u5b83\u5e6b\u52a9\u7ba1\u7406\u9032\u51fa\u4f3a\u670d\u5668\u7684\u6d41\u91cf\u3002UFW\uff08Uncomplicated Firewall\uff09\u662f\u4e00\u500b\u53cb\u597d\u7684\u9632\u706b\u7246\u7ba1\u7406\u5de5\u5177\uff0c\u6613\u65bc\u914d\u7f6e\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5b89\u88ddUFW\uff1a<\/p>\n<pre><code>sudo apt-get install ufw<\/code><\/pre>\n<p>\u9ed8\u8a8d\u60c5\u6cc1\u4e0b\uff0c\u914d\u7f6eUFW\u62d2\u7d55\u6240\u6709\u9032\u5165\u7684\u9023\u63a5\uff0c\u4e26\u5141\u8a31\u6240\u6709\u51fa\u7ad9\u7684\u9023\u63a5\uff1a<\/p>\n<pre><code>sudo ufw default deny incoming\r\nsudo ufw default allow outgoing<\/code><\/pre>\n<p>\u7136\u5f8c\uff0c\u6839\u64da\u9700\u8981\u958b\u653e\u7279\u5b9a\u670d\u52d9\u7684\u7aef\u53e3\uff0c\u4f8b\u5982SSH\uff1a<\/p>\n<pre><code>ufw allow ssh<\/code><\/pre>\n<p>\u6700\u5f8c\uff0c\u6fc0\u6d3bUFW\uff1a<\/p>\n<pre><code>sudo ufw enable<\/code><\/pre>\n<h2><strong>3. \u5be6\u65bd\u5f37\u5bc6\u78bc\u7b56\u7565<\/strong><\/h2>\n<p>\u4f7f\u7528\u5f37\u5bc6\u78bc\u7b56\u7565\u53ef\u4ee5\u5927\u5927\u6e1b\u5c11\u88ab\u7834\u89e3\u7684\u98a8\u96aa\u3002libpam-cracklib\u662f\u4e00\u500b\u6709\u7528\u7684\u5de5\u5177\uff0c\u80fd\u5e6b\u52a9\u5be6\u65bd\u8907\u96dc\u7684\u5bc6\u78bc\u898f\u5247\u3002\u5b89\u88dd\u65b9\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>sudo apt-get install libpam-cracklib<\/code><\/pre>\n<p>\u914d\u7f6e\u5bc6\u78bc\u6700\u5c0f\u9577\u5ea6\u3001\u5bc6\u78bc\u8907\u96dc\u5ea6\u4ee5\u53ca\u5bc6\u78bc\u66f4\u63db\u9031\u671f\uff0c\u90fd\u662f\u63d0\u5347\u8cec\u6236\u5b89\u5168\u7684\u6709\u6548\u624b\u6bb5\u3002<\/p>\n<h2><strong>4. \u7981\u7528\u975e\u5fc5\u8981\u670d\u52d9<\/strong><\/h2>\n<p>\u7981\u7528\u4e0d\u9700\u8981\u7684\u670d\u52d9\u80fd\u6e1b\u5c11\u4f3a\u670d\u5668\u7684\u653b\u64ca\u9762\u3002\u4f7f\u7528systemd\u7ba1\u7406\u7cfb\u7d71\u670d\u52d9\uff1a<\/p>\n<pre><code>sudo apt-get install systemd\r\nsystemctl list-units<\/code><\/pre>\n<p>\u5c0d\u65bc\u4e0d\u9700\u8981\u7684\u670d\u52d9\uff0c\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u505c\u6b62\u4e26\u7981\u7528\u5b83\u5011\uff1a<\/p>\n<pre><code>systemctl stop &lt;service&gt;\r\nsystemctl disable &lt;service&gt;<\/code><\/pre>\n<h2><strong>5. \u6aa2\u67e5\u76e3\u807d\u7aef\u53e3<\/strong><\/h2>\n<p>\u4f7f\u7528netstat\u547d\u4ee4\u6aa2\u67e5\u4f3a\u670d\u5668\u4e0a\u7684\u76e3\u807d\u7aef\u53e3\uff1a<\/p>\n<pre><code>netstat -tulpn<\/code><\/pre>\n<p>\u6aa2\u67e5\u7aef\u53e3\u662f\u5426\u5fc5\u8981\uff0c\u5982\u679c\u4e0d\u662f\uff0c\u8003\u616e\u95dc\u9589\u76f8\u61c9\u7684\u670d\u52d9\u6216\u8abf\u6574\u9632\u706b\u7246\u898f\u5247\u3002<\/p>\n<h2><strong>6. \u9032\u884c\u60e1\u610f\u8edf\u4f53\u6383\u63cf<\/strong><\/h2>\n<p>ClamAV\u662f\u4e00\u500b\u958b\u6e90\u7684\u60e1\u610f\u8edf\u4f53\u6383\u63cf\u5de5\u5177\uff0c\u53ef\u4ee5\u5e6b\u52a9\u4f60\u6aa2\u6e2c\u548c\u6e05\u9664\u75c5\u6bd2\u3002\u5b89\u88dd\u4e26\u4f7f\u7528ClamAV\uff1a<\/p>\n<pre><code>sudo apt-get install clamav\r\nsudo freshclam\r\nsudo clamscan -r --bell -i \/<\/code><\/pre>\n<p>\u8003\u616e\u8a2d\u7f6e\u5b9a\u671f\u6383\u63cf\uff0c\u4ee5\u78ba\u4fdd\u4f3a\u670d\u5668\u4e0d\u6703\u53d7\u5230\u60e1\u610f\u8edf\u4f53\u7684\u4fb5\u5bb3\u3002<\/p>\n<p>\u9664\u4e86\u4e0a\u8ff0\u6b65\u9a5f\uff0c\u9084\u6709\u5176\u4ed6\u5e7e\u500b\u9ad8\u7d1a\u5b89\u5168\u63aa\u65bd\u53ef\u4ee5\u63d0\u9ad8Linux\u4f3a\u670d\u5668\u7684\u5b89\u5168\u6027\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528SSH\u5bc6\u9470\u8a8d\u8b49\uff1a\u4f7f\u7528\u5bc6\u9470\u8a8d\u8b49\u800c\u4e0d\u662f\u5bc6\u78bc\u8a8d\u8b49\u4f86\u9032\u884cSSH\u767b\u9304\uff0c\u53ef\u4ee5\u9032\u4e00\u6b65\u63d0\u9ad8\u5b89\u5168\u6027\u3002<\/li>\n<li>\u914d\u7f6eSELinux\u6216AppArmor\uff1a\u9019\u4e9b\u5b89\u5168\u6a21\u584a\u63d0\u4f9b\u4e86\u984d\u5916\u7684\u8a2a\u554f\u63a7\u5236\u6a5f\u5236\uff0c\u53ef\u4ee5\u6709\u6548\u9650\u5236\u7a0b\u5e8f\u8a2a\u554f\u7cfb\u7d71\u8cc7\u6e90\u3002<\/li>\n<li>\u9032\u884c\u5b89\u5168\u5be9\u8a08\uff1a\u4f7f\u7528\u5982auditd\u9019\u6a23\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u76e3\u63a7\u7cfb\u7d71\u4e0a\u7684\u6d3b\u52d5\uff0c\u4e26\u6293\u53d6\u95dc\u9375\u7684\u7cfb\u7d71\u4e8b\u4ef6\u3002<\/li>\n<li>\u5099\u4efd\u548c\u707d\u96e3\u6062\u5fa9\u8a08\u5283\uff1a\u5b9a\u671f\u5099\u4efd\u7cfb\u7d71\u548c\u6578\u64da\uff0c\u4ee5\u53ca\u5236\u5b9a\u4e00\u500b\u707d\u96e3\u6062\u5fa9\u8a08\u5283\uff0c\u53ef\u4ee5\u5728\u6578\u64da\u907a\u5931\u6216\u7cfb\u7d71\u640d\u58de\u6642\u78ba\u4fdd\u696d\u52d9\u9023\u7e8c\u6027\u3002<\/li>\n<\/ul>\n<p>\u5728\u5be6\u65bd\u9019\u4e9b\u5b89\u5168\u63aa\u65bd\u6642\uff0c\u9084\u61c9\u4fdd\u6301\u5c0d\u4f3a\u670d\u5668\u7684\u5b9a\u671f\u76e3\u63a7\u548c\u5be9\u8a08\uff0c\u78ba\u4fdd\u6240\u6709\u5b89\u5168\u63aa\u65bd\u5f97\u5230\u6709\u6548\u57f7\u884c\u3002\u6b64\u5916\uff0c\u5c0d\u65bc\u6240\u6709\u4f3a\u670d\u5668\u64cd\u4f5c\uff0c\u9075\u5faa\u6700\u5c0f\u6b0a\u9650\u539f\u5247\uff0c\u53ea\u8ce6\u4e88\u7528\u6236\u5b8c\u6210\u5176\u5de5\u4f5c\u6240\u5fc5\u9700\u7684\u6b0a\u9650\u3002<\/p>\n<p>[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row][vc_column][vc_column_text] \u5728\u6578\u78bc\u5316\u6642\u4ee3\uff0cLinux\u4f3a\u670d\u5668\u6210\u70ba\u4e86\u4f01 [&#8230;]<\/p>\n<p><a class=\"btn btn-secondary understrap-read-more-link\" href=\"https:\/\/www.varidata.com\/zh-tw\/knowledge-tc\/how-to-improve-linux-server-security-with-open-source-tools\/\">Read More&#8230;<\/a><\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[268],"tags":[],"class_list":["post-16553","post","type-post","status-publish","format-standard","hentry","category-knowledge-tc"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u5982\u4f55\u901a\u904e\u958b\u6e90\u5de5\u5177\u63d0\u9ad8Linux\u4f3a\u670d\u5668\u7684\u5b89\u5168\u6027\uff1f - Varidata Limited<\/title>\n<meta name=\"description\" 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