{"id":44488,"date":"2024-10-06T15:59:15","date_gmt":"2024-10-06T07:59:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/44488\/"},"modified":"2024-10-06T15:59:15","modified_gmt":"2024-10-06T07:59:15","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%e5%85%a7%e6%a0%b8%e5%8a%a0%e5%9b%ba","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/44488\/","title":{"rendered":"Linux \u4f3a\u670d\u5668\u5b89\u5168\u7b56\u7565\u6280\u5de7\uff1a\u5167\u6838\u52a0\u56fa"},"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%e5%85%a7%e6%a0%b8%e5%8a%a0%e5%9b%ba-iPmSpwfWxg\">Linux \u4f3a\u670d\u5668\u5b89\u5168\u7b56\u7565\u6280\u5de7\uff1a\u5167\u6838\u52a0\u56fa<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u4f4d\u6642\u4ee3\uff0c\u4f3a\u670d\u5668\u5b89\u5168\u6027\u6210\u70ba\u4e86\u4f01\u696d\u548c\u500b\u4eba\u7528\u6236\u6700\u95dc\u6ce8\u7684\u8b70\u984c\u4e4b\u4e00\u3002Linux \u4f5c\u70ba\u4e00\u500b\u958b\u6e90\u7684\u64cd\u4f5c\u7cfb\u7d71\uff0c\u56e0\u5176\u7a69\u5b9a\u6027\u548c\u5b89\u5168\u6027\u800c\u5ee3\u53d7\u6b61\u8fce\u3002\u7136\u800c\uff0c\u96a8\u8457\u7db2\u7d61\u653b\u64ca\u7684\u65e5\u76ca\u589e\u591a\uff0c\u50c5\u50c5\u4f9d\u8cf4 Linux \u7684\u5167\u5efa\u5b89\u5168\u63aa\u65bd\u5df2\u7d93\u4e0d\u5920\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u901a\u904e\u5167\u6838\u52a0\u56fa\u4f86\u63d0\u5347 Linux \u4f3a\u670d\u5668\u7684\u5b89\u5168\u6027\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%85%a7%e6%a0%b8%e5%8a%a0%e5%9b%ba%ef%bc%9f-iPmSpwfWxg\">\u4ec0\u9ebc\u662f\u5167\u6838\u52a0\u56fa\uff1f<\/h2>\n<p>\u5167\u6838\u52a0\u56fa\u662f\u6307\u901a\u904e\u4e00\u7cfb\u5217\u7684\u914d\u7f6e\u548c\u6280\u8853\u624b\u6bb5\uff0c\u589e\u5f37\u64cd\u4f5c\u7cfb\u7d71\u5167\u6838\u7684\u5b89\u5168\u6027\u3002\u9019\u4e9b\u63aa\u65bd\u65e8\u5728\u6e1b\u5c11\u6f5b\u5728\u7684\u653b\u64ca\u9762\uff0c\u9632\u6b62\u672a\u7d93\u6388\u6b0a\u7684\u8a2a\u554f\u548c\u6578\u64da\u6d29\u9732\u3002\u5167\u6838\u52a0\u56fa\u4e0d\u50c5\u80fd\u63d0\u9ad8\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\uff0c\u9084\u80fd\u6709\u6548\u9632\u6b62\u5404\u7a2e\u5b89\u5168\u6f0f\u6d1e\u7684\u5229\u7528\u3002<\/p>\n<h2 id=\"%e5%85%a7%e6%a0%b8%e5%8a%a0%e5%9b%ba%e7%9a%84%e4%b8%bb%e8%a6%81%e7%ad%96%e7%95%a5-iPmSpwfWxg\">\u5167\u6838\u52a0\u56fa\u7684\u4e3b\u8981\u7b56\u7565<\/h2>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8-selinux-%e6%88%96-apparmor-iPmSpwfWxg\">1. \u4f7f\u7528 SELinux \u6216 AppArmor<\/h3>\n<p>SELinux\uff08Security-Enhanced Linux\uff09\u548c AppArmor \u662f\u5169\u7a2e\u6d41\u884c\u7684 Linux \u5b89\u5168\u6a21\u584a\u3002\u5b83\u5011\u901a\u904e\u5f37\u5236\u8a2a\u554f\u63a7\u5236\uff08MAC\uff09\u4f86\u9650\u5236\u7a0b\u5e8f\u7684\u6b0a\u9650\uff0c\u5f9e\u800c\u6e1b\u5c11\u6f5b\u5728\u7684\u5b89\u5168\u98a8\u96aa\u3002<\/p>\n<pre><code>sudo setenforce 1  # \u555f\u7528 SELinux\n<\/code><\/pre>\n<p>\u555f\u7528\u9019\u4e9b\u5b89\u5168\u6a21\u584a\u5f8c\uff0c\u7cfb\u7d71\u5c07\u6703\u5c0d\u6bcf\u500b\u9032\u7a0b\u7684\u884c\u70ba\u9032\u884c\u76e3\u63a7\uff0c\u4e26\u6839\u64da\u9810\u8a2d\u7684\u5b89\u5168\u7b56\u7565\u9032\u884c\u9650\u5236\u3002<\/p>\n<h3 id=\"2-%e5%85%a7%e6%a0%b8%e5%8f%83%e6%95%b8%e8%aa%bf%e6%95%b4-iPmSpwfWxg\">2. \u5167\u6838\u53c3\u6578\u8abf\u6574<\/h3>\n<p>\u901a\u904e\u8abf\u6574\u5167\u6838\u53c3\u6578\uff0c\u53ef\u4ee5\u589e\u5f37\u7cfb\u7d71\u7684\u5b89\u5168\u6027\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5efa\u8b70\u7684\u53c3\u6578\u8a2d\u7f6e\uff1a<\/p>\n<ul>\n<li><code>net.ipv4.conf.all.rp_filter = 1<\/code> &#8211; \u555f\u7528\u53cd\u5411\u8def\u7531\u904e\u6ffe\uff0c\u9632\u6b62 IP \u507d\u9020\u3002<\/li>\n<li><code>net.ipv4.conf.default.accept_source_route = 0<\/code> &#8211; \u7981\u6b62\u6e90\u8def\u7531\uff0c\u6e1b\u5c11\u653b\u64ca\u9762\u3002<\/li>\n<li><code>kernel.randomize_va_space = 2<\/code> &#8211; \u555f\u7528\u5730\u5740\u7a7a\u9593\u4f48\u5c40\u96a8\u6a5f\u5316\uff08ASLR\uff09\uff0c\u589e\u52a0\u653b\u64ca\u8005\u7684\u96e3\u5ea6\u3002<\/li>\n<\/ul>\n<p>\u9019\u4e9b\u53c3\u6578\u53ef\u4ee5\u901a\u904e\u7de8\u8f2f <code>\/etc\/sysctl.conf<\/code> \u6587\u4ef6\u4f86\u9032\u884c\u8a2d\u7f6e\uff0c\u4e26\u4f7f\u7528 <code>sudo sysctl -p<\/code> \u547d\u4ee4\u4f7f\u5176\u751f\u6548\u3002<\/p>\n<h3 id=\"3-%e5%ae%9a%e6%9c%9f%e6%9b%b4%e6%96%b0%e5%85%a7%e6%a0%b8-iPmSpwfWxg\">3. \u5b9a\u671f\u66f4\u65b0\u5167\u6838<\/h3>\n<p>\u4fdd\u6301\u5167\u6838\u7684\u6700\u65b0\u7248\u672c\u662f\u9632\u6b62\u5b89\u5168\u6f0f\u6d1e\u7684\u91cd\u8981\u63aa\u65bd\u3002\u5b9a\u671f\u6aa2\u67e5\u4e26\u5b89\u88dd\u5b89\u5168\u66f4\u65b0\uff0c\u53ef\u4ee5\u6709\u6548\u964d\u4f4e\u88ab\u653b\u64ca\u7684\u98a8\u96aa\u3002<\/p>\n<pre><code>sudo apt-get update\nsudo apt-get upgrade\n<\/code><\/pre>\n<h3 id=\"4-%e4%bd%bf%e7%94%a8%e9%98%b2%e7%81%ab%e7%89%86-iPmSpwfWxg\">4. \u4f7f\u7528\u9632\u706b\u7246<\/h3>\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> \u53ef\u4ee5\u6709\u6548\u5730\u63a7\u5236\u9032\u51fa\u4f3a\u670d\u5668\u7684\u6d41\u91cf\uff0c\u5f9e\u800c\u589e\u5f37\u5b89\u5168\u6027\u3002<\/p>\n<pre><code>sudo ufw enable  # \u555f\u7528 UFW \u9632\u706b\u7246\nsudo ufw allow ssh  # \u5141\u8a31 SSH \u9023\u63a5\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-iPmSpwfWxg\">\u7d50\u8ad6<\/h2>\n<p>\u5167\u6838\u52a0\u56fa\u662f\u63d0\u5347 Linux \u4f3a\u670d\u5668\u5b89\u5168\u6027\u7684\u91cd\u8981\u7b56\u7565\u4e4b\u4e00\u3002\u901a\u904e\u5be6\u65bd SELinux \u6216 AppArmor\u3001\u8abf\u6574\u5167\u6838\u53c3\u6578\u3001\u5b9a\u671f\u66f4\u65b0\u5167\u6838\u4ee5\u53ca\u4f7f\u7528\u9632\u706b\u7246\u7b49\u63aa\u65bd\uff0c\u53ef\u4ee5\u6709\u6548\u6e1b\u5c11\u6f5b\u5728\u7684\u5b89\u5168\u98a8\u96aa\u3002\u96a8\u8457\u7db2\u7d61\u5b89\u5168\u5a01\u8105\u7684\u589e\u52a0\uff0c\u4f01\u696d\u548c\u500b\u4eba\u7528\u6236\u90fd\u61c9\u8a72\u91cd\u8996\u9019\u4e9b\u5b89\u5168\u7b56\u7565\uff0c\u4ee5\u4fdd\u8b77\u81ea\u5df1\u7684\u6578\u64da\u548c\u7cfb\u7d71\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u548c\u4f3a\u670d\u5668\u5b89\u5168\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Linux\u4f3a\u670d\u5668\u5b89\u5168\u7b56\u7565\u6280\u5de7\uff0c\u5b78\u7fd2\u5167\u6838\u52a0\u56fa\u65b9\u6cd5\uff0c\u63d0\u5347\u7cfb\u7d71\u9632\u8b77\uff0c\u78ba\u4fdd\u6578\u64da\u5b89\u5168\u8207\u7a69\u5b9a\u6027\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-44488","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44488","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=44488"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44488\/revisions"}],"predecessor-version":[{"id":44489,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44488\/revisions\/44489"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=44488"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=44488"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=44488"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}