{"id":126,"date":"2025-10-08T05:09:06","date_gmt":"2025-10-08T05:09:06","guid":{"rendered":"https:\/\/blog.tudcloud.com\/?p=126"},"modified":"2025-10-08T05:12:24","modified_gmt":"2025-10-08T05:12:24","slug":"setting-up-a-firewall-on-ubuntu-ufw-guide","status":"publish","type":"post","link":"https:\/\/blog.tudcloud.com\/zh\/setting-up-a-firewall-on-ubuntu-ufw-guide\/","title":{"rendered":"\u5728 Ubuntu \u4e0a\u8bbe\u7f6e\u9632\u706b\u5899\uff08UFW \u6307\u5357\uff09"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9632\u706b\u5899\u662f VPS \u6700\u91cd\u8981\u7684\u4fdd\u62a4\u5c42\u4e4b\u4e00\u3002<br>\u5b83\u53ef\u4ee5\u5e2e\u52a9\u60a8\u63a7\u5236\u54ea\u4e9b\u7f51\u7edc\u6d41\u91cf\u53ef\u4ee5\u8fdb\u5165\u6216\u79bb\u5f00\u60a8\u7684\u670d\u52a1\u5668\u2014\u2014\u964d\u4f4e\u672a\u7ecf\u6388\u6743\u7684\u8bbf\u95ee\u548c\u653b\u51fb\u7684\u98ce\u9669\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u672c\u6307\u5357\u4e2d\uff0c\u60a8\u5c06\u5b66\u4e60\u5982\u4f55\u4f7f\u7528 <strong>UFW\uff08\u7b80\u5355\u9632\u706b\u5899\uff09<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd30 1.\u4ec0\u4e48\u662f UFW\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">UFW \u662f\u4e00\u6b3e\u7528\u6237\u53cb\u597d\u7684\u9632\u706b\u5899\u7ba1\u7406\u5de5\u5177\uff0c\u5efa\u7acb\u5728 <strong>iptables<\/strong>\uff0c\u65e8\u5728\u7b80\u5316Linux\u9632\u706b\u5899\u914d\u7f6e\u3002<br>\u5b83\u5728\u5927\u591a\u6570\u73b0\u4ee3 Ubuntu \u7cfb\u7edf\u4e0a\u9ed8\u8ba4\u53ef\u7528\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u2699\ufe0f 2. \u68c0\u67e5 UFW \u72b6\u6001<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u8981\u9a8c\u8bc1 UFW \u662f\u5426\u5df2\u5b89\u88c5\u5e76\u5904\u4e8e\u6d3b\u52a8\u72b6\u6001\uff0c\u8bf7\u8fd0\u884c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\" data-no-translation=\"\"><code data-no-translation=\"\">sudo ufw status\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u4f60\u5f97\u5230 <code data-no-translation=\"\">Status: inactive<\/code>\uff0c\u914d\u7f6e\u5b8c\u6210\u540e\u5373\u53ef\u542f\u7528\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83e\udde9 3. \u9996\u5148\u5141\u8bb8 SSH \u8bbf\u95ee<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u542f\u7528\u9632\u706b\u5899\u4e4b\u524d\uff0c\u8bf7\u786e\u4fdd\u5141\u8bb8 SSH \u8bbf\u95ee - \u5426\u5219\u60a8\u5c06\u88ab\u9501\u5b9a\uff01<\/p>\n\n\n\n<pre class=\"wp-block-code\" data-no-translation=\"\"><code data-no-translation=\"\">sudo ufw allow 22\/tcp\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u60a8\u66f4\u6539\u4e86 SSH \u7aef\u53e3\uff0c\u8bf7\u76f8\u5e94\u5730\u8fdb\u884c\u8c03\u6574\uff08\u4f8b\u5982\u7aef\u53e3 2222\uff09\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83c\udf10 4. \u5141\u8bb8 Web \u548c\u5176\u4ed6\u5e38\u7528\u670d\u52a1<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5141\u8bb8 HTTP \u548c HTTPS \u8fdb\u884c\u7f51\u7edc\u6d41\u91cf\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\" data-no-translation=\"\"><code data-no-translation=\"\">sudo ufw allow 80\/tcp\nsudo ufw allow 443\/tcp\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u60a8\u8fd8\u53ef\u4ee5\u6839\u636e\u9700\u8981\u5141\u8bb8\u5176\u4ed6\u7aef\u53e3\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\" data-no-translation=\"\"><code data-no-translation=\"\">sudo ufw allow 21\/tcp    # FTP  \nsudo ufw allow 25\/tcp    # SMTP (Mail)  \nsudo ufw allow 3306\/tcp  # MySQL (Database)\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\ude80 5. \u542f\u7528\u9632\u706b\u5899<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bbe\u7f6e\u89c4\u5219\u540e\uff0c\u542f\u7528 UFW\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\" data-no-translation=\"\"><code data-no-translation=\"\">sudo ufw enable\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u60a8\u4f1a\u770b\u5230\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u8be5\u547d\u4ee4\u53ef\u80fd\u4f1a\u4e2d\u65ad\u73b0\u6709\u7684 SSH \u8fde\u63a5\u3002\u662f\u5426\u7ee7\u7eed\u64cd\u4f5c (y|n)\uff1f<br>\u7c7b\u578b <code data-no-translation=\"\">y<\/code> \u7136\u540e\u6309 Enter \u952e\u3002<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd0d 6. \u7ba1\u7406\u548c\u5ba1\u67e5\u89c4\u5219<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5217\u51fa\u6d3b\u52a8\u89c4\u5219\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\" data-no-translation=\"\"><code data-no-translation=\"\">sudo ufw status numbered\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u6839\u636e\u89c4\u5219\u7f16\u53f7\u5220\u9664\u89c4\u5219\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\" data-no-translation=\"\"><code data-no-translation=\"\">sudo ufw delete 3\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u7981\u7528\u9632\u706b\u5899\uff08\u4e0d\u63a8\u8350\uff09\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\" data-no-translation=\"\"><code data-no-translation=\"\">sudo ufw disable\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u2705 7. \u603b\u7ed3<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u73b0\u5728\u60a8\u6709\u4e00\u4e2a\u57fa\u672c\u7684\u9632\u706b\u5899\u6765\u4fdd\u62a4\u60a8\u7684 Ubuntu VPS\u3002<br><strong>Tudcloud VPS \u7528\u6237\u7684\u63a8\u8350\u8bbe\u7f6e\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4fdd\u6301 SSH\uff0822 \u6216\u60a8\u7684\u81ea\u5b9a\u4e49\u7aef\u53e3\uff09\u6253\u5f00<\/li>\n\n\n\n<li>\u5141\u8bb8 Web \u7aef\u53e3\uff0880\u3001443\uff09<\/li>\n\n\n\n<li>\u9ed8\u8ba4\u62d2\u7edd\u6240\u6709\u5176\u4ed6\u6d41\u91cf<\/li>\n\n\n\n<li>\u7ed3\u5408 <strong>Tudcloud DDoS \u9632\u62a4<\/strong> \u4e3a\u4e86\u6700\u5927\u7a0b\u5ea6\u7684\u5b89\u5168<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83e\udde9 \u7ed3\u8bba<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b63\u786e\u914d\u7f6e\u7684\u9632\u706b\u5899\u662f\u60a8\u7684\u7b2c\u4e00\u9053\u9632\u7ebf\u3002<br>\u4e00\u65e6 UFW \u542f\u52a8\uff0c\u60a8\u7684 VPS \u5c31\u4f1a\u53d8\u5f97\u66f4\u52a0\u5b89\u5168\uff0c\u53ef\u4ee5\u62b5\u5fa1\u653b\u51fb\u3002<\/p>","protected":false},"excerpt":{"rendered":"<p>\u9632\u706b\u5899\u662fVPS\u6700\u91cd\u8981\u7684\u5b89\u5168\u9632\u62a4\u5c42\u4e4b\u4e00\u3002\u5b83\u53ef\u4ee5\u5e2e\u52a9\u60a8\u63a7\u5236\u54ea\u4e9b\u7f51\u7edc\u6d41\u91cf\u53ef\u4ee5\u8fdb\u51fa\u670d\u52a1\u5668\uff0c\u4ece\u800c\u964d\u4f4e\u672a\u7ecf\u6388\u6743\u7684\u8bbf\u95ee\u548c\u653b\u51fb\u98ce\u9669\u3002\u5728\u672c\u6307\u5357\u4e2d\uff0c\u60a8\u5c06\u5b66\u4e60\u5982\u4f55\u5728Ubuntu\u4e0a\u4f7f\u7528UFW\uff08Uncomplicated VPN\uff09\u8bbe\u7f6e\u548c\u7ba1\u7406\u9632\u706b\u5899\u3002<\/p>","protected":false},"author":1,"featured_media":131,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[43],"tags":[33,26,44,45,39],"class_list":["post-126","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server-security","tag-linux-vps","tag-tudcloud","tag-ubuntu-firewall","tag-ufw","tag-vps-security"],"_links":{"self":[{"href":"https:\/\/blog.tudcloud.com\/zh\/wp-json\/wp\/v2\/posts\/126","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.tudcloud.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.tudcloud.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.tudcloud.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.tudcloud.com\/zh\/wp-json\/wp\/v2\/comments?post=126"}],"version-history":[{"count":3,"href":"https:\/\/blog.tudcloud.com\/zh\/wp-json\/wp\/v2\/posts\/126\/revisions"}],"predecessor-version":[{"id":133,"href":"https:\/\/blog.tudcloud.com\/zh\/wp-json\/wp\/v2\/posts\/126\/revisions\/133"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.tudcloud.com\/zh\/wp-json\/wp\/v2\/media\/131"}],"wp:attachment":[{"href":"https:\/\/blog.tudcloud.com\/zh\/wp-json\/wp\/v2\/media?parent=126"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.tudcloud.com\/zh\/wp-json\/wp\/v2\/categories?post=126"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.tudcloud.com\/zh\/wp-json\/wp\/v2\/tags?post=126"}],"curies":[{"name":"\u53ef\u6e7f\u6027\u7c89\u5242","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}