{"id":27461,"date":"2023-11-16T11:17:31","date_gmt":"2022-11-25T16:03:26","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%89%80%e6%9c%89ubuntu%e7%9a%84%e7%ab%af%e5%8f%a3-4\/"},"modified":"2025-08-12T02:50:37","modified_gmt":"2025-08-11T18:50:37","slug":"%e6%89%80%e6%9c%89ubuntu%e7%9a%84%e7%ab%af%e5%8f%a3-4","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%89%80%e6%9c%89ubuntu%e7%9a%84%e7%ab%af%e5%8f%a3-4\/","title":{"rendered":"\u6240\u6709Ubuntu\u7684\u7aef\u53e3"},"content":{"rendered":"

\u7531\u4e8e\u8fd9\u662f\u6211\u7b2c\u4e00\u6b21\u53d1\u8868\uff0c\u6240\u4ee5\u53ef\u80fd\u4f1a\u6709\u4e00\u4e9b\u9519\u8bef\u4e4b\u5904\u3002\u5982\u679c\u6709\u4efb\u4f55\u9519\u8bef\uff0c\u8bf7\u7559\u8a00\u544a\u8bc9\u6211\u3002<\/p>\n

\u5f53\u524d\u7684\u6e2f\u53e3\u60c5\u51b5 (Current port situation)<\/h2>\n
$ sudo ufw status\r\n<\/code><\/pre>\n
\u91cd\u65b0\u52a0\u8f7d\u8bbe\u7f6e<\/h2>\n
$ sudo ufw reload\r\n<\/code><\/pre>\n
\u5f00\u653e\u7aef\u53e3<\/h2>\n
$ sudo ufw allow [\u30dd\u30fc\u30c8\u756a\u53f7]\r\n<\/code><\/pre>\n
\u5173\u95ed\u6e2f\u53e3<\/h2>\n
$ sudo ufw deny [\u30dd\u30fc\u30c8\u756a\u53f7]\r\n<\/code><\/pre>\n
\u6253\u5f00\u6240\u6709\u7684\u7aef\u53e3<\/h2>\n
$ sudo ufw default ALLOW\r\n<\/code><\/pre>\n
\u5173\u95ed\u6240\u6709\u7aef\u53e3\u3002<\/h2>\n
$ sudo ufw default DENY\r\n<\/code><\/pre>\n
\u6240\u6709\u7684\u89c4\u5219\u7f16\u53f7\u5c55\u793a<\/h2>\n
$ sudo ufw status numbered\r\n<\/code><\/pre>\n
\u5220\u9664\u89c4\u5219<\/h2>\n
$ sudo ufw delete [\u30eb\u30fc\u30eb\u756a\u53f7]\r\n<\/code><\/pre>\n
\u5728\u7cfb\u7edf\u4e2d\u542f\u7528\u9632\u706b\u5899\u5417\uff1f<\/h2>\n
$ sudo ufw enable\r\n<\/code><\/pre>\n
\u60a8\u662f\u5426\u8981\u5728\u7cfb\u7edf\u4e2d\u7981\u7528\u9632\u706b\u5899\uff1f<\/h2>\n
$ sudo ufw disable\r\n<\/code><\/pre>\n
\u30dd\u30fc\u30c8\u4e00\u89a7<\/h2>\n
\n
\u57fa\u672c\u7684\u306a\u4f7f\u7528\u30dd\u30fc\u30c8\u30dd\u30fc\u30c8\u756a\u53f7ftp20,21ssh22http80https443<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
\u7531\u4e8e\u8fd9\u662f\u6211\u7b2c\u4e00\u6b21\u53d1\u8868\uff0c\u6240\u4ee5\u53ef\u80fd\u4f1a\u6709\u4e00\u4e9b\u9519\u8bef\u4e4b\u5904\u3002\u5982\u679c\u6709\u4efb\u4f55\u9519\u8bef\uff0c\u8bf7\u7559\u8a00\u544a\u8bc9\u6211\u3002 \u5f53\u524d\u7684\u6e2f\u53e3\u60c5\u51b5 (Curren […]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-27461","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"\n\u6240\u6709Ubuntu\u7684\u7aef\u53e3 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u5173\u4e8e\u6240\u6709Ubuntu\u7684\u7aef\u53e3\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u6240\u6709ubuntu\u7684\u7aef\u53e3-4\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u6240\u6709Ubuntu\u7684\u7aef\u53e3\" \/>\n<meta property=\"og:description\" content=\"\u5173\u4e8e\u6240\u6709Ubuntu\u7684\u7aef\u53e3\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u6240\u6709ubuntu\u7684\u7aef\u53e3-4\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2022-11-25T16:03:26+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-11T18:50:37+00:00\" \/>\n<meta name=\"author\" content=\"\u5b87, \u534e\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u5b87, \u534e\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e6%89%80%e6%9c%89ubuntu%e7%9a%84%e7%ab%af%e5%8f%a3-4\/\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e6%89%80%e6%9c%89ubuntu%e7%9a%84%e7%ab%af%e5%8f%a3-4\/\",\"name\":\"\u6240\u6709Ubuntu\u7684\u7aef\u53e3 - Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\"},\"datePublished\":\"2022-11-25T16:03:26+00:00\",\"dateModified\":\"2025-08-11T18:50:37+00:00\",\"author\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/513018e4e121d3add1b7c5de8be21458\"},\"description\":\"\u5173\u4e8e\u6240\u6709Ubuntu\u7684\u7aef\u53e3\u7684\u6280\u672f\u6587\u7ae0\",\"breadcrumb\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e6%89%80%e6%9c%89ubuntu%e7%9a%84%e7%ab%af%e5%8f%a3-4\/#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/zh\/blog\/%e6%89%80%e6%9c%89ubuntu%e7%9a%84%e7%ab%af%e5%8f%a3-4\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e6%89%80%e6%9c%89ubuntu%e7%9a%84%e7%ab%af%e5%8f%a3-4\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.silicloud.com\/zh\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u6240\u6709Ubuntu\u7684\u7aef\u53e3\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/\",\"name\":\"Blog - 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