{"id":44482,"date":"2024-10-06T15:56:59","date_gmt":"2024-10-06T07:56:59","guid":{"rendered":"https:\/\/server.hk\/cnblog\/44482\/"},"modified":"2024-10-06T15:56:59","modified_gmt":"2024-10-06T07:56:59","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%e7%a6%81%e7%94%a8%e6%9c%aa%e4%bd%bf%e7%94%a8%e7%9a%84%e5%8d%94%e8%ad%b0","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/44482\/","title":{"rendered":"Linux \u4f3a\u670d\u5668\u5b89\u5168\u7b56\u7565\u6280\u5de7\uff1a\u7981\u7528\u672a\u4f7f\u7528\u7684\u5354\u8b70"},"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%e7%a6%81%e7%94%a8%e6%9c%aa%e4%bd%bf%e7%94%a8%e7%9a%84%e5%8d%94%e8%ad%b0-kaSTWCzmBy\">Linux \u4f3a\u670d\u5668\u5b89\u5168\u7b56\u7565\u6280\u5de7\uff1a\u7981\u7528\u672a\u4f7f\u7528\u7684\u5354\u8b70<\/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\u4e0d\u53ef\u5ffd\u8996\u7684\u91cd\u8981\u8b70\u984c\u3002Linux \u4f3a\u670d\u5668\u56e0\u5176\u958b\u6e90\u7279\u6027\u548c\u9748\u6d3b\u6027\u800c\u5ee3\u53d7\u6b61\u8fce\uff0c\u4f46\u9019\u4e5f\u4f7f\u5176\u6210\u70ba\u9ed1\u5ba2\u653b\u64ca\u7684\u6f5b\u5728\u76ee\u6a19\u3002\u70ba\u4e86\u4fdd\u8b77\u4f3a\u670d\u5668\u7684\u5b89\u5168\uff0c\u7981\u7528\u672a\u4f7f\u7528\u7684\u5354\u8b70\u662f\u4e00\u9805\u6709\u6548\u7684\u7b56\u7565\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728 Linux \u4f3a\u670d\u5668\u4e0a\u7981\u7528\u672a\u4f7f\u7528\u7684\u5354\u8b70\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u6280\u5de7\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e8%a6%81%e7%a6%81%e7%94%a8%e6%9c%aa%e4%bd%bf%e7%94%a8%e7%9a%84%e5%8d%94%e8%ad%b0%ef%bc%9f-kaSTWCzmBy\">\u70ba\u4ec0\u9ebc\u8981\u7981\u7528\u672a\u4f7f\u7528\u7684\u5354\u8b70\uff1f<\/h2>\n<p>\u7981\u7528\u672a\u4f7f\u7528\u7684\u5354\u8b70\u53ef\u4ee5\u6e1b\u5c11\u6f5b\u5728\u7684\u653b\u64ca\u9762\u3002\u6bcf\u4e00\u500b\u555f\u7528\u7684\u5354\u8b70\u90fd\u53ef\u80fd\u6210\u70ba\u9ed1\u5ba2\u5165\u4fb5\u7684\u5165\u53e3\u3002\u6839\u64da\u7d71\u8a08\uff0c\u8a31\u591a\u653b\u64ca\u90fd\u662f\u5229\u7528\u672a\u7d93\u6388\u6b0a\u7684\u5354\u8b70\u6216\u670d\u52d9\u9032\u884c\u7684\u3002\u56e0\u6b64\uff0c\u901a\u904e\u7981\u7528\u4e0d\u5fc5\u8981\u7684\u5354\u8b70\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u4f3a\u670d\u5668\u7684\u5b89\u5168\u6027\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e8%ad%98%e5%88%a5%e6%9c%aa%e4%bd%bf%e7%94%a8%e7%9a%84%e5%8d%94%e8%ad%b0-kaSTWCzmBy\">\u5982\u4f55\u8b58\u5225\u672a\u4f7f\u7528\u7684\u5354\u8b70<\/h2>\n<p>\u5728\u7981\u7528\u672a\u4f7f\u7528\u7684\u5354\u8b70\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u8b58\u5225\u54ea\u4e9b\u5354\u8b70\u662f\u672a\u4f7f\u7528\u7684\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u67e5\u770b\u7576\u524d\u555f\u7528\u7684\u670d\u52d9\u548c\u5354\u8b70\uff1a<\/p>\n<pre><code>netstat -tuln<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u5c07\u986f\u793a\u6240\u6709\u6b63\u5728\u904b\u884c\u7684 TCP \u548c UDP \u670d\u52d9\u3002\u6839\u64da\u8f38\u51fa\u7684\u7d50\u679c\uff0c\u60a8\u53ef\u4ee5\u5224\u65b7\u54ea\u4e9b\u670d\u52d9\u662f\u5fc5\u8981\u7684\uff0c\u54ea\u4e9b\u662f\u53ef\u4ee5\u7981\u7528\u7684\u3002<\/p>\n<h2 id=\"%e7%a6%81%e7%94%a8%e6%9c%aa%e4%bd%bf%e7%94%a8%e7%9a%84%e5%8d%94%e8%ad%b0-kaSTWCzmBy\">\u7981\u7528\u672a\u4f7f\u7528\u7684\u5354\u8b70<\/h2>\n<p>\u4e00\u65e6\u8b58\u5225\u51fa\u672a\u4f7f\u7528\u7684\u5354\u8b70\uff0c\u60a8\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u5f0f\u7981\u7528\u5b83\u5011\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e9%98%b2%e7%81%ab%e7%89%86-kaSTWCzmBy\">1. \u4f7f\u7528\u9632\u706b\u7246<\/h3>\n<p>\u9632\u706b\u7246\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u5e6b\u52a9\u60a8\u63a7\u5236\u9032\u51fa\u4f3a\u670d\u5668\u7684\u6d41\u91cf\u3002\u4f7f\u7528 iptables \u6216 firewalld \u7b49\u9632\u706b\u7246\u5de5\u5177\uff0c\u53ef\u4ee5\u8f15\u9b06\u7981\u7528\u4e0d\u5fc5\u8981\u7684\u5354\u8b70\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u7981\u7528\u67d0\u500b\u7aef\u53e3\uff1a<\/p>\n<pre><code>iptables -A INPUT -p tcp --dport 23 -j DROP<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u5c07\u7981\u7528 Telnet \u5354\u8b70\uff08\u7aef\u53e3 23\uff09\u7684\u9032\u5165\u6d41\u91cf\u3002<\/p>\n<h3 id=\"2-%e5%81%9c%e6%ad%a2%e4%b8%8d%e5%bf%85%e8%a6%81%e7%9a%84%e6%9c%8d%e5%8b%99-kaSTWCzmBy\">2. \u505c\u6b62\u4e0d\u5fc5\u8981\u7684\u670d\u52d9<\/h3>\n<p>\u9664\u4e86\u4f7f\u7528\u9632\u706b\u7246\uff0c\u60a8\u9084\u53ef\u4ee5\u76f4\u63a5\u505c\u6b62\u4e0d\u5fc5\u8981\u7684\u670d\u52d9\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u67e5\u770b\u7576\u524d\u904b\u884c\u7684\u670d\u52d9\uff1a<\/p>\n<pre><code>systemctl list-units --type=service<\/code><\/pre>\n<p>\u7136\u5f8c\uff0c\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u505c\u6b62\u548c\u7981\u7528\u4e0d\u5fc5\u8981\u7684\u670d\u52d9\uff1a<\/p>\n<pre><code>systemctl stop <\/code><\/pre>\n<pre><code>systemctl disable <\/code><\/pre>\n<p>\u5c07  \u66ff\u63db\u70ba\u60a8\u8981\u7981\u7528\u7684\u670d\u52d9\u540d\u7a31\u3002<\/p>\n<h3 id=\"3-%e9%85%8d%e7%bd%ae-ssh-%e8%a8%ad%e5%ae%9a-kaSTWCzmBy\">3. \u914d\u7f6e SSH \u8a2d\u5b9a<\/h3>\n<p>SSH \u662f\u4e00\u500b\u5e38\u7528\u7684\u9060\u7a0b\u767b\u9304\u5354\u8b70\uff0c\u4f46\u5982\u679c\u4e0d\u52a0\u4ee5\u914d\u7f6e\uff0c\u53ef\u80fd\u6703\u6210\u70ba\u653b\u64ca\u7684\u76ee\u6a19\u3002\u60a8\u53ef\u4ee5\u901a\u904e\u7de8\u8f2f SSH \u914d\u7f6e\u6587\u4ef6\u4f86\u7981\u7528\u4e0d\u5fc5\u8981\u7684\u529f\u80fd\uff1a<\/p>\n<pre><code>nano \/etc\/ssh\/sshd_config<\/code><\/pre>\n<p>\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\uff0c\u60a8\u53ef\u4ee5\u7981\u7528 root \u767b\u9304\u548c\u4e0d\u5b89\u5168\u7684\u5354\u8b70\u7248\u672c\uff1a<\/p>\n<pre><code>PermitRootLogin no\nProtocol 2<\/code><\/pre>\n<p>\u5b8c\u6210\u5f8c\uff0c\u91cd\u555f SSH \u670d\u52d9\u4ee5\u61c9\u7528\u66f4\u6539\uff1a<\/p>\n<pre><code>systemctl restart sshd<\/code><\/pre>\n<h2 id=\"%e5%ae%9a%e6%9c%9f%e6%aa%a2%e6%9f%a5%e5%92%8c%e6%9b%b4%e6%96%b0-kaSTWCzmBy\">\u5b9a\u671f\u6aa2\u67e5\u548c\u66f4\u65b0<\/h2>\n<p>\u7981\u7528\u672a\u4f7f\u7528\u7684\u5354\u8b70\u4e26\u4e0d\u662f\u4e00\u6b21\u6027\u7684\u4efb\u52d9\u3002\u96a8\u8457\u6642\u9593\u7684\u63a8\u79fb\uff0c\u65b0\u7684\u670d\u52d9\u548c\u5354\u8b70\u53ef\u80fd\u6703\u88ab\u5b89\u88dd\uff0c\u56e0\u6b64\u5b9a\u671f\u6aa2\u67e5\u548c\u66f4\u65b0\u662f\u5fc5\u8981\u7684\u3002\u5efa\u8b70\u6bcf\u6708\u9032\u884c\u4e00\u6b21\u5b89\u5168\u5be9\u8a08\uff0c\u78ba\u4fdd\u6240\u6709\u4e0d\u5fc5\u8981\u7684\u5354\u8b70\u548c\u670d\u52d9\u90fd\u5df2\u88ab\u7981\u7528\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-kaSTWCzmBy\">\u7d50\u8ad6<\/h2>\n<p>\u7981\u7528\u672a\u4f7f\u7528\u7684\u5354\u8b70\u662f\u63d0\u9ad8 Linux \u4f3a\u670d\u5668\u5b89\u5168\u6027\u7684\u91cd\u8981\u6b65\u9a5f\u3002\u901a\u904e\u8b58\u5225\u3001\u7981\u7528\u4e0d\u5fc5\u8981\u7684\u5354\u8b70\u548c\u670d\u52d9\uff0c\u60a8\u53ef\u4ee5\u986f\u8457\u6e1b\u5c11\u6f5b\u5728\u7684\u5b89\u5168\u98a8\u96aa\u3002\u5b9a\u671f\u6aa2\u67e5\u548c\u66f4\u65b0\u60a8\u7684\u4f3a\u670d\u5668\u914d\u7f6e\uff0c\u5c07\u6709\u52a9\u65bc\u4fdd\u6301\u7cfb\u7d71\u7684\u5b89\u5168\u6027\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/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\uff0c\u5b78\u7fd2\u5982\u4f55\u7981\u7528\u672a\u4f7f\u7528\u7684\u5354\u8b70\u4ee5\u589e\u5f37\u7cfb\u7d71\u5b89\u5168\u6027\uff0c\u4fdd\u8b77\u6578\u64da\u514d\u53d7\u5a01\u8105\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-44482","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44482","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=44482"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44482\/revisions"}],"predecessor-version":[{"id":44483,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44482\/revisions\/44483"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=44482"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=44482"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=44482"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}