{"id":554,"date":"2023-05-09T09:14:38","date_gmt":"2023-05-09T01:14:38","guid":{"rendered":"https:\/\/www.db2go.net\/?p=554"},"modified":"2023-06-09T10:39:11","modified_gmt":"2023-06-09T02:39:11","slug":"%e5%88%a9%e7%94%a8%e5%ad%90%e7%bd%91%e6%8e%a9%e7%a0%81%e8%bf%9b%e8%a1%8c%e5%ad%90%e7%bd%91%e5%88%92%e5%88%86","status":"publish","type":"post","link":"https:\/\/www.db2go.net\/?p=554","title":{"rendered":"\u5229\u7528\u5b50\u7f51\u63a9\u7801\u8fdb\u884c\u5b50\u7f51\u5212\u5206"},"content":{"rendered":"<p>\u5b50\u7f51\u5212\u5206\u5141\u8bb8\u5c06\u4e00\u4e2a\u8f83\u5927\u7684 IP \u5730\u5740\u7a7a\u95f4\u5212\u5206\u4e3a\u591a\u4e2a\u8f83\u5c0f\u7684\u5b50\u7f51\uff0c\u4ece\u800c\u63d0\u9ad8\u7f51\u7edc\u6027\u80fd\u3001\u5b89\u5168\u6027\u548c\u53ef\u7ba1\u7406\u6027\u3002\u5b50\u7f51\u63a9\u7801\u5728\u5b50\u7f51\u5212\u5206\u8fc7\u7a0b\u4e2d\u53d1\u6325\u7740\u91cd\u8981\u4f5c\u7528\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u4f7f\u7528\u5b50\u7f51\u63a9\u7801\u8fdb\u884c\u5b50\u7f51\u5212\u5206\u7684\u6b65\u9aa4\uff1a<\/p>\n<ol>\n<li>\u786e\u5b9a\u7f51\u7edc\u9700\u6c42\uff1a\u9996\u5148\uff0c\u786e\u5b9a\u7684\u7f51\u7edc\u9700\u6c42\uff0c\u4f8b\u5982\u9700\u8981\u591a\u5c11\u4e2a\u5b50\u7f51\u4ee5\u53ca\u6bcf\u4e2a\u5b50\u7f51\u9700\u8981\u591a\u5c11\u4e3b\u673a\u3002\u8fd9\u5c06\u6709\u52a9\u4e8e\u9009\u62e9\u5408\u9002\u7684\u5b50\u7f51\u63a9\u7801\u3002<\/p>\n<\/li>\n<li>\n<p>\u9009\u62e9\u5b50\u7f51\u63a9\u7801\uff1a\u6839\u636e\u7f51\u7edc\u9700\u6c42\u9009\u62e9\u9002\u5f53\u7684\u5b50\u7f51\u63a9\u7801\u3002\u5b50\u7f51\u63a9\u7801\u7531\u8fde\u7eed\u7684 1 \u548c 0 \u7ec4\u6210\uff0c\u5176\u4e2d 1 \u8868\u793a\u7f51\u7edc\u4f4d\uff0c0 \u8868\u793a\u4e3b\u673a\u4f4d\u3002\u589e\u52a0\u5b50\u7f51\u63a9\u7801\u4e2d\u7684 1 \u53ef\u4ee5\u589e\u52a0\u5b50\u7f51\u6570\u91cf\uff0c\u4f46\u4f1a\u51cf\u5c11\u6bcf\u4e2a\u5b50\u7f51\u4e2d\u7684\u53ef\u7528\u4e3b\u673a\u6570\u91cf\u3002<\/p>\n<\/li>\n<li>\n<p>\u8ba1\u7b97\u5b50\u7f51\u6570\u91cf\u548c\u6bcf\u4e2a\u5b50\u7f51\u7684\u53ef\u7528\u4e3b\u673a\u6570\u91cf\uff1a\u5b50\u7f51\u6570\u91cf\u7531\u5b50\u7f51\u63a9\u7801\u4e2d\u7684\u4e3b\u673a\u4f4d\u6570\u51b3\u5b9a\u3002\u4e3b\u673a\u4f4d\u6570\u4e3a n \u65f6\uff0c\u5b50\u7f51\u6570\u91cf\u4e3a 2^n\u3002\u6bcf\u4e2a\u5b50\u7f51\u7684\u53ef\u7528\u4e3b\u673a\u6570\u91cf\u7531\u5b50\u7f51\u63a9\u7801\u4e2d\u7684\u4e3b\u673a\u4f4d\u6570\u51b3\u5b9a\u3002\u4e3b\u673a\u4f4d\u6570\u4e3a n \u65f6\uff0c\u6bcf\u4e2a\u5b50\u7f51\u7684\u53ef\u7528\u4e3b\u673a\u6570\u91cf\u4e3a 2^n &#8211; 2\u3002\u51cf\u53bb 2 \u662f\u56e0\u4e3a\u7f51\u7edc\u5730\u5740\u548c\u5e7f\u64ad\u5730\u5740\u4e0d\u80fd\u5206\u914d\u7ed9\u4e3b\u673a\u3002<\/p>\n<\/li>\n<li>\n<p>\u8ba1\u7b97\u5b50\u7f51\u7684\u7f51\u7edc\u5730\u5740\uff1a\u6839\u636e\u9009\u62e9\u7684\u5b50\u7f51\u63a9\u7801\uff0c\u4e3a\u6bcf\u4e2a\u5b50\u7f51\u5206\u914d\u7f51\u7edc\u5730\u5740\u3002\u7f51\u7edc\u5730\u5740\u662f\u6bcf\u4e2a\u5b50\u7f51\u4e2d IP \u5730\u5740\u7684\u7b2c\u4e00\u4e2a\u5730\u5740\u3002\u4ece\u539f\u59cb\u7f51\u7edc\u5730\u5740\u5f00\u59cb\uff0c\u6309\u5b50\u7f51\u63a9\u7801\u4e2d\u4e3b\u673a\u4f4d\u6570\u7684\u589e\u91cf\u5206\u914d\u7f51\u7edc\u5730\u5740\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u4f8b\u5982\uff0c\u5047\u8bbe\u6709\u4e00\u4e2a IP \u5730\u5740\u7a7a\u95f4 192.168.1.0\/24\uff0c\u9700\u8981\u5c06\u5176\u5212\u5206\u4e3a 4 \u4e2a\u5b50\u7f51\uff0c\u6bcf\u4e2a\u5b50\u7f51\u81f3\u5c11\u6709 50 \u4e2a\u4e3b\u673a\u3002\u8981\u5b9e\u73b0\u8fd9\u4e00\u70b9\uff0c\u53ef\u4ee5\u5c06\u5b50\u7f51\u63a9\u7801\u7684\u4e3b\u673a\u4f4d\u4ece 8 \u4f4d (\/24) \u6269\u5c55\u5230 6 \u4f4d (\/26)\uff0c\u56e0\u4e3a 2^6 = 64 > 50\u3002\u6240\u4ee5\uff0c\u65b0\u7684\u5b50\u7f51\u63a9\u7801\u4e3a 255.255.255.192 (\/26)\u3002<\/p>\n<p>\u73b0\u5728\uff0c\u53ef\u4ee5\u4e3a\u5b50\u7f51\u5206\u914d\u7f51\u7edc\u5730\u5740\uff1a<\/p>\n<pre><code class=\"language-shell line-numbers\">\u5b50\u7f51 1\uff1a192.168.1.0\/26\n\u5b50\u7f51 2\uff1a192.168.1.64\/26\n\u5b50\u7f51 3\uff1a192.168.1.128\/26\n\u5b50\u7f51 4\uff1a192.168.1.192\/26\n<\/code><\/pre>\n<p>\u6bcf\u4e2a\u5b50\u7f51\u7684\u53ef\u7528\u4e3b\u673a\u6570\u91cf\u4e3a 2^6 &#8211; 2 = 62\u3002<\/p>\n<p>\u5b50\u7f51\u5212\u5206\u7684\u5173\u952e\u662f\u9009\u62e9\u5408\u9002\u7684\u5b50\u7f51\u63a9\u7801\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u5b50\u7f51\u5212\u5206\u901a\u5e38\u4e0e\u5176\u4ed6\u7f51\u7edc\u7ba1\u7406\u6280\u672f\uff08\u5982\u5982 VLAN\u3001\u8def\u7531\u534f\u8bae\u7b49\uff09\u7ed3\u5408\u4f7f\u7528\uff0c\u6839\u636e\u7f51\u7edc\u89c4\u6a21\u3001\u4e3b\u673a\u6570\u91cf\u9700\u6c42\u4ee5\u53ca\u5b50\u7f51\u6570\u91cf\u9700\u6c42\u7b49\u56e0\u7d20\u6765\u51b3\u5b9a\u5b50\u7f51\u63a9\u7801\u7684\u957f\u5ea6\u3002\u5f53\u9700\u8981\u66f4\u591a\u5b50\u7f51\u65f6\uff0c\u53ef\u4ee5\u901a\u8fc7\u589e\u52a0\u5b50\u7f51\u63a9\u7801\u4e2d\u7684\u7f51\u7edc\u4f4d\u6570\u6765\u5b9e\u73b0\uff1b\u5f53\u9700\u8981\u66f4\u591a\u4e3b\u673a\u65f6\uff0c\u53ef\u4ee5\u901a\u8fc7\u51cf\u5c11\u5b50\u7f51\u63a9\u7801\u4e2d\u7684\u7f51\u7edc\u4f4d\u6570\u6765\u5b9e\u73b0\u3002\u8fd9\u79cd\u7075\u6d3b\u6027\u4f7f\u5f97\u5b50\u7f51\u5212\u5206\u6210\u4e3a IP \u7f51\u7edc\u8bbe\u8ba1\u548c\u7ba1\u7406\u4e2d\u7684\u4e00\u79cd\u5f3a\u5927\u5de5\u5177\u3002<\/p>\n<p>\u4e00\u822c\u6765\u8bf4\uff0c\u5b50\u7f51\u5212\u5206\u7684\u4e3b\u8981\u4f5c\u7528\u662f\uff1a<\/p>\n<ul>\n<li>\u63d0\u9ad8\u7f51\u7edc\u6027\u80fd\u3001\u5b89\u5168\u6027\u548c\u53ef\u7ba1\u7406\u6027\u3002\u5728\u5927\u578b\u7ec4\u7ec7\u548c\u6570\u636e\u4e2d\u5fc3\u73af\u5883\u4e2d\uff0c\u5b50\u7f51\u5212\u5206\u53ef\u4ee5\u5e2e\u52a9\u9650\u5236\u5e7f\u64ad\u6d41\u91cf\uff0c\u964d\u4f4e\u7f51\u7edc\u62e5\u585e\u3002<\/li>\n<li>\u5b9e\u73b0\u7f51\u7edc\u9694\u79bb\uff0c\u4ece\u800c\u63d0\u9ad8\u7f51\u7edc\u5b89\u5168\u6027\u3002\u5c06\u4e0d\u540c\u7684\u90e8\u95e8\u6216\u529f\u80fd\u533a\u57df\u653e\u7f6e\u5728\u4e0d\u540c\u7684\u5b50\u7f51\u4e2d\u53ef\u4ee5\u9632\u6b62\u672a\u7ecf\u6388\u6743\u7684\u8bbf\u95ee\u548c\u6570\u636e\u6cc4\u9732\u3002<\/li>\n<li>\u7b80\u5316\u7f51\u7edc\u7ba1\u7406\uff0c\u4f7f\u7ba1\u7406\u5458\u80fd\u591f\u66f4\u5bb9\u6613\u5730\u8bc6\u522b\u548c\u89e3\u51b3\u7f51\u7edc\u95ee\u9898\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u5b50\u7f51\u5212\u5206\u5141\u8bb8\u5c06\u4e00\u4e2a\u8f83\u5927\u7684 IP \u5730\u5740\u7a7a\u95f4\u5212\u5206\u4e3a\u591a\u4e2a\u8f83\u5c0f\u7684\u5b50\u7f51\uff0c\u4ece\u800c\u63d0\u9ad8\u7f51\u7edc\u6027\u80fd\u3001\u5b89\u5168\u6027\u548c\u53ef\u7ba1\u7406\u6027\u3002\u5b50\u7f51\u63a9\u7801\u5728\u5b50&hellip;<\/p>\n <a href=\"https:\/\/www.db2go.net\/?p=554\" title=\"\u5229\u7528\u5b50\u7f51\u63a9\u7801\u8fdb\u884c\u5b50\u7f51\u5212\u5206\" class=\"entry-more-link\"><span>Read More<\/span> <span class=\"screen-reader-text\">\u5229\u7528\u5b50\u7f51\u63a9\u7801\u8fdb\u884c\u5b50\u7f51\u5212\u5206<\/span><\/a>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"Layout":"","footnotes":""},"categories":[15],"tags":[],"class_list":["entry","author-suredandan","post-554","post","type-post","status-publish","format-standard","category-15"],"views":1723,"_links":{"self":[{"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/posts\/554","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.db2go.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=554"}],"version-history":[{"count":2,"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/posts\/554\/revisions"}],"predecessor-version":[{"id":579,"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/posts\/554\/revisions\/579"}],"wp:attachment":[{"href":"https:\/\/www.db2go.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=554"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.db2go.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=554"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.db2go.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=554"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}