{"id":44552,"date":"2024-10-06T16:29:13","date_gmt":"2024-10-06T08:29:13","guid":{"rendered":"https:\/\/server.hk\/cnblog\/44552\/"},"modified":"2024-10-06T16:29:13","modified_gmt":"2024-10-06T08:29:13","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%bd%bf%e7%94%a8%e7%ab%af%e5%8f%a3%e6%95%b2%e6%93%8a%e9%9a%b1%e8%97%8f%e6%9c%8d%e5%8b%99","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/44552\/","title":{"rendered":"Linux \u4f3a\u670d\u5668\u5b89\u5168\u7b56\u7565\u6280\u5de7\uff1a\u4f7f\u7528\u7aef\u53e3\u6572\u64ca\u96b1\u85cf\u670d\u52d9"},"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%bd%bf%e7%94%a8%e7%ab%af%e5%8f%a3%e6%95%b2%e6%93%8a%e9%9a%b1%e8%97%8f%e6%9c%8d%e5%8b%99-LktTQPJjIk\">Linux \u4f3a\u670d\u5668\u5b89\u5168\u7b56\u7565\u6280\u5de7\uff1a\u4f7f\u7528\u7aef\u53e3\u6572\u64ca\u96b1\u85cf\u670d\u52d9<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u74b0\u5883\u4e2d\uff0c\u4f3a\u670d\u5668\u5b89\u5168\u6027\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002\u96a8\u8457\u7db2\u7d61\u653b\u64ca\u7684\u983b\u7e41\u767c\u751f\uff0c\u4fdd\u8b77\u4f3a\u670d\u5668\u514d\u53d7\u672a\u7d93\u6388\u6b0a\u8a2a\u554f\u7684\u5a01\u8105\u6210\u70ba\u6bcf\u500b\u7cfb\u7d71\u7ba1\u7406\u54e1\u7684\u9996\u8981\u4efb\u52d9\u3002\u7aef\u53e3\u6572\u64ca\uff08Port Knocking\uff09\u662f\u4e00\u7a2e\u6709\u6548\u7684\u5b89\u5168\u7b56\u7565\uff0c\u53ef\u4ee5\u5e6b\u52a9\u96b1\u85cf\u670d\u52d9\u4e26\u589e\u5f37\u4f3a\u670d\u5668\u7684\u5b89\u5168\u6027\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%ab%af%e5%8f%a3%e6%95%b2%e6%93%8a%ef%bc%9f-LktTQPJjIk\">\u4ec0\u9ebc\u662f\u7aef\u53e3\u6572\u64ca\uff1f<\/h2>\n<p>\u7aef\u53e3\u6572\u64ca\u662f\u4e00\u7a2e\u5b89\u5168\u6280\u8853\uff0c\u901a\u904e\u5728\u7279\u5b9a\u7684\u9806\u5e8f\u4e2d\u767c\u9001\u5c01\u5305\u5230\u4f3a\u670d\u5668\u7684\u4e0d\u540c\u7aef\u53e3\u4f86\u63a7\u5236\u5c0d\u670d\u52d9\u7684\u8a2a\u554f\u3002\u9019\u7a2e\u65b9\u6cd5\u7684\u57fa\u672c\u539f\u7406\u662f\uff0c\u4f3a\u670d\u5668\u5728\u63a5\u6536\u5230\u6b63\u78ba\u7684\u7aef\u53e3\u6572\u64ca\u5e8f\u5217\u5f8c\uff0c\u624d\u6703\u958b\u653e\u7279\u5b9a\u7684\u7aef\u53e3\uff0c\u5141\u8a31\u7528\u6236\u8a2a\u554f\u670d\u52d9\u3002\u9019\u6a23\uff0c\u5373\u4f7f\u653b\u64ca\u8005\u77e5\u9053\u4f3a\u670d\u5668\u7684IP\u5730\u5740\uff0c\u4e5f\u7121\u6cd5\u8f15\u6613\u5730\u767c\u73fe\u958b\u653e\u7684\u670d\u52d9\u3002<\/p>\n<h2 id=\"%e7%ab%af%e5%8f%a3%e6%95%b2%e6%93%8a%e7%9a%84%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86-LktTQPJjIk\">\u7aef\u53e3\u6572\u64ca\u7684\u5de5\u4f5c\u539f\u7406<\/h2>\n<p>\u7aef\u53e3\u6572\u64ca\u7684\u5de5\u4f5c\u6d41\u7a0b\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\u7528\u6236\u5411\u4f3a\u670d\u5668\u767c\u9001\u4e00\u7cfb\u5217\u7684\u5c01\u5305\uff0c\u9019\u4e9b\u5c01\u5305\u662f\u91dd\u5c0d\u7279\u5b9a\u7aef\u53e3\u7684\u3002<\/li>\n<li>\u4f3a\u670d\u5668\u76e3\u63a7\u9019\u4e9b\u7aef\u53e3\u7684\u8a2a\u554f\u60c5\u6cc1\uff0c\u4e26\u8a18\u9304\u4e0b\u4f86\u3002<\/li>\n<li>\u5982\u679c\u7528\u6236\u6309\u7167\u9810\u5b9a\u7684\u9806\u5e8f\u6210\u529f\u6572\u64ca\u4e86\u7aef\u53e3\uff0c\u4f3a\u670d\u5668\u6703\u81e8\u6642\u958b\u653e\u4e00\u500b\u7279\u5b9a\u7684\u7aef\u53e3\uff0c\u5141\u8a31\u7528\u6236\u8a2a\u554f\u3002<\/li>\n<\/ol>\n<h2 id=\"%e5%a6%82%e4%bd%95%e8%a8%ad%e7%bd%ae%e7%ab%af%e5%8f%a3%e6%95%b2%e6%93%8a-LktTQPJjIk\">\u5982\u4f55\u8a2d\u7f6e\u7aef\u53e3\u6572\u64ca<\/h2>\n<p>\u4ee5\u4e0b\u662f\u8a2d\u7f6e\u7aef\u53e3\u6572\u64ca\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e5%ae%89%e8%a3%9d%e5%bf%85%e8%a6%81%e7%9a%84%e5%b7%a5%e5%85%b7-LktTQPJjIk\">1. \u5b89\u88dd\u5fc5\u8981\u7684\u5de5\u5177<\/h3>\n<p>\u5728Linux\u4f3a\u670d\u5668\u4e0a\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u5982 <code>knockd<\/code> \u7684\u5de5\u5177\u4f86\u5be6\u73fe\u7aef\u53e3\u6572\u64ca\u3002\u9996\u5148\uff0c\u60a8\u9700\u8981\u5b89\u88dd\u9019\u500b\u5de5\u5177\uff1a<\/p>\n<pre><code>sudo apt-get install knockd<\/code><\/pre>\n<h3>2. \u914d\u7f6e <code>knockd<\/code><\/h3>\n<p>\u5b89\u88dd\u5b8c\u6210\u5f8c\uff0c\u60a8\u9700\u8981\u7de8\u8f2f <code>\/etc\/knockd.conf<\/code> \u6587\u4ef6\uff0c\u8a2d\u7f6e\u7aef\u53e3\u6572\u64ca\u7684\u5e8f\u5217\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>[openSSH]\n    sequence = 7000,8000,9000\n    seq_timeout = 5\n    command = \/usr\/bin\/iptables -A INPUT -p tcp --dport 22 -j ACCEPT\n    tcpflags = syn<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u7576\u7528\u6236\u6309\u71677000\u30018000\u30019000\u7684\u9806\u5e8f\u767c\u9001\u5c01\u5305\u6642\uff0c\u4f3a\u670d\u5668\u5c07\u958b\u653e22\u7aef\u53e3\uff08SSH\u670d\u52d9\uff09\u3002<\/p>\n<h3>3. \u555f\u52d5 <code>knockd<\/code><\/h3>\n<p>\u5b8c\u6210\u914d\u7f6e\u5f8c\uff0c\u555f\u52d5 <code>knockd<\/code> \u670d\u52d9\uff1a<\/p>\n<pre><code>sudo systemctl start knockd<\/code><\/pre>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e7%ab%af%e5%8f%a3%e6%95%b2%e6%93%8a%e7%9a%84%e5%84%aa%e5%8b%a2-LktTQPJjIk\">\u4f7f\u7528\u7aef\u53e3\u6572\u64ca\u7684\u512a\u52e2<\/h2>\n<ul>\n<li><strong>\u96b1\u85cf\u670d\u52d9\uff1a<\/strong>\u901a\u904e\u96b1\u85cf\u958b\u653e\u7684\u7aef\u53e3\uff0c\u6e1b\u5c11\u4e86\u88ab\u653b\u64ca\u7684\u98a8\u96aa\u3002<\/li>\n<li><strong>\u9748\u6d3b\u6027\uff1a<\/strong>\u53ef\u4ee5\u6839\u64da\u9700\u8981\u96a8\u6642\u66f4\u6539\u7aef\u53e3\u6572\u64ca\u7684\u5e8f\u5217\u3002<\/li>\n<li><strong>\u7c21\u55ae\u6613\u7528\uff1a<\/strong>\u8a2d\u7f6e\u548c\u4f7f\u7528\u76f8\u5c0d\u7c21\u55ae\uff0c\u9069\u5408\u5404\u7a2e\u898f\u6a21\u7684\u4f3a\u670d\u5668\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-LktTQPJjIk\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5118\u7ba1\u7aef\u53e3\u6572\u64ca\u662f\u4e00\u7a2e\u6709\u6548\u7684\u5b89\u5168\u63aa\u65bd\uff0c\u4f46\u5b83\u4e26\u4e0d\u662f\u842c\u7121\u4e00\u5931\u7684\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u9700\u8981\u6ce8\u610f\u7684\u4e8b\u9805\uff1a<\/p>\n<ul>\n<li>\u78ba\u4fdd\u4f7f\u7528\u5f37\u5bc6\u78bc\u548c\u5176\u4ed6\u5b89\u5168\u63aa\u65bd\u4f86\u4fdd\u8b77\u4f3a\u670d\u5668\u3002<\/li>\n<li>\u5b9a\u671f\u6aa2\u67e5\u548c\u66f4\u65b0\u7aef\u53e3\u6572\u64ca\u7684\u914d\u7f6e\u3002<\/li>\n<li>\u8003\u616e\u7d50\u5408\u5176\u4ed6\u5b89\u5168\u6280\u8853\uff0c\u5982\u9632\u706b\u7246\u548c\u5165\u4fb5\u6aa2\u6e2c\u7cfb\u7d71\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-LktTQPJjIk\">\u7e3d\u7d50<\/h2>\n<p>\u7aef\u53e3\u6572\u64ca\u662f\u4e00\u7a2e\u6709\u6548\u7684\u6280\u8853\uff0c\u53ef\u4ee5\u5e6b\u52a9Linux\u4f3a\u670d\u5668\u96b1\u85cf\u670d\u52d9\u4e26\u589e\u5f37\u5b89\u5168\u6027\u3002\u901a\u904e\u6b63\u78ba\u7684\u914d\u7f6e\u548c\u4f7f\u7528\uff0c\u7cfb\u7d71\u7ba1\u7406\u54e1\u53ef\u4ee5\u986f\u8457\u964d\u4f4e\u672a\u7d93\u6388\u6b0a\u8a2a\u554f\u7684\u98a8\u96aa\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u5b89\u5168\u6027\u7684\u74b0\u5883\uff0c\u8003\u616e\u4f7f\u7528 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\uff0c\u4e26\u7d50\u5408\u7aef\u53e3\u6572\u64ca\u7b49\u5b89\u5168\u7b56\u7565\uff0c\u5c07\u6709\u52a9\u65bc\u4fdd\u8b77\u60a8\u7684\u6578\u64da\u548c\u61c9\u7528\u7a0b\u5e8f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Linux\u4f3a\u670d\u5668\u5b89\u5168\u7b56\u7565\uff0c\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528\u7aef\u53e3\u6572\u64ca\u6280\u8853\u96b1\u85cf\u670d\u52d9\uff0c\u63d0\u5347\u7cfb\u7d71\u9632\u8b77\u8207\u5b89\u5168\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-44552","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44552","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=44552"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44552\/revisions"}],"predecessor-version":[{"id":44553,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44552\/revisions\/44553"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=44552"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=44552"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=44552"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}