{"id":68268,"date":"2019-01-13T02:11:08","date_gmt":"2019-01-12T18:11:08","guid":{"rendered":"http:\/\/www.xiaoyebailong.com\/?p=68268"},"modified":"2019-01-24T02:43:07","modified_gmt":"2019-01-23T18:43:07","slug":"%e5%a6%82%e4%bd%95%e6%b8%85%e7%90%86-dns-%e7%bc%93%e5%ad%98","status":"publish","type":"post","link":"http:\/\/www.xiaoyebailong.com\/index.php\/2019\/01\/13\/68268.htm","title":{"rendered":"\u5982\u4f55\u6e05\u7406 DNS \u7f13\u5b58"},"content":{"rendered":"\n

\u4ec0\u4e48\u662f DNS<\/h4>\n\n\n\n

DNS\uff08\u82f1\u6587\uff1aDomain Name System\uff0c\u7f29\u5199\uff1aDNS\uff09\uff0c\u4e2d\u6587\u540d\uff1a\u7f51\u57df\u540d\u79f0\u7cfb\u7edf\uff0c\u662f\u4e92\u8054\u7f51\u4e2d\u91cd\u8981\u7684\u4e00\u73af\uff0c\u5b83\u4f5c\u4e3a\u5c06\u57df\u540d\u548cIP\u5730\u5740\u76f8\u4e92\u6620\u5c04\u7684\u4e00\u4e2a\u5206\u5e03\u5f0f\u6570\u636e\u5e93\uff0c\u80fd\u591f\u4f7f\u4eba\u66f4\u65b9\u4fbf\u5730\u8bbf\u95ee\u4e92\u8054\u7f51\u3002\u751f\u6d3b\u4e2d DNS \u4e5f\u6210\u4e86\u201c\u63d0\u4f9b DNS \u670d\u52a1\u5668\u7684 ip\u201d\u7684\u4ee3\u79f0\u3002\u7b80\u5355\u6bd4\u55bb\u6765\u8bf4\uff0c\u5b83\u662f\u4e00\u4e2a\u5de8\u578b\u901a\u8baf\u5f55\uff0c\u4f60\u63d0\u4f9b\u7f51\u7ad9\u7684\u59d3\u540d\uff08\u57df\u540d\uff09\u7ed9\u5b83\uff0c\u5b83\u4f1a\u56de\u590d\u7ed9\u4f60\u6b64\u4eba\u7684\u7535\u8bdd\u53f7\u7801\u3002\u81f3\u6b64\u4f60\u904d\u53ef\u4ee5\u901a\u8fc7\u7535\u8bdd\u53f7\u7801\u8054\u7cfb\u5230\u4f60\u60f3\u8054\u7cfb\u7684\u4eba\u3002<\/p>\n\n\n\n

\u4ec0\u4e48\u662f\u7f13\u5b58<\/h4>\n\n\n\n

\u7f13\u5b58\uff08cache\uff09\u4e00\u8bcd\u6765\u6e90\u4e8e1967\u5e74\u7684\u4e00\u7bc7\u7535\u5b50\u5de5\u7a0b\u671f\u520a\u8bba\u6587\uff0c\u4ece\u524d\u4e13\u6307\u5b58\u5728\u4e8e CPU \u4e0e RAM \u4e4b\u95f4\u4e3a\u4e86\u5f25\u8865\u4e24\u8005\u6570\u636e\u4f20\u8f93\u901f\u5ea6\u5dee\u5f02\u7684\u4e00\u79cd\u7ed3\u6784\u3002\u73b0\u5982\u4eca\uff0c\u8fd9\u4e2a\u6982\u5ff5\u5f97\u5230\u4e86\u6269\u5145\uff0c\u4e0d\u518d\u9650\u4e8e CPU \u4e0e RAM \u4e4b\u95f4\uff0c\u4efb\u4f55\u4f4d\u4e8e\u901f\u5ea6\u76f8\u5dee\u8f83\u5927\u7684\u4e24\u79cd\u786c\u4ef6\u4e4b\u95f4\uff0c\u7528\u4e8e\u534f\u8c03\u4e24\u8005\u6570\u636e\u4f20\u8f93\u901f\u5ea6\u5dee\u5f02\u7684\u7ed3\u6784\uff0c\u5747\u53ef\u79f0\u4e4b\u4e3a Cache\u3002\u90a3 DNS \u7f13\u5b58\u5982\u4f55\u7406\u89e3\u5462\uff1f\u4ecd\u7136\u7528\u901a\u8baf\u5f55\u6bd4\u55bb\uff0c\u901a\u8baf\u5f55\u63d0\u4f9b\u7684\u670d\u52a1\u5f88\u65b9\u4fbf\uff0c\u4f46\u662f\u67e5\u8be2\u662f\u9700\u8981\u65f6\u95f4\u6210\u672c\uff0c\u800c\u6bcf\u4e00\u4e2a\u4eba\u7684\u7535\u8bdd\u53f7\u7801\u4e00\u822c\u662f\u4e0d\u4f1a\u7ecf\u5e38\u53d8\u66f4\u7684\uff0c\u6240\u4ee5\u4f60\u4e3a\u4e86\u81ea\u5df1\u4ee5\u540e\u4f7f\u7528\u7684\u65b9\u4fbf\u5c31\u628a\u4ece\u524d\u67e5\u8be2\u7684\u7ed3\u679c\u90fd\u8bb0\u5f55\u5728\u81ea\u5df1\u7684\u5c0f\u672c\u5b50\u4e0a\uff0c\u5f53\u4f60\u53bb\u67e5\u81ea\u5df1\u7684\u5c0f\u672c\u5b50\uff0c\u6548\u7387\u5c31\u63d0\u9ad8\u4e86\u5f88\u591a\u3002\u800c\u8fd9\u4e2a\u5c0f\u672c\u5b50\u5c31\u662f\u7f13\u5b58\u3002<\/p>\n\n\n\n

EDNS \u89e3\u6790\u662f\u4ec0\u4e48<\/h4>\n\n\n\n

\u4e92\u8054\u7f51\u7684\u4e16\u754c\u8d8a\u6765\u8d8a\u5927\uff0c\u73b0\u5728\u7684\u7f51\u7ad9\u4e3a\u4e86\u66f4\u597d\u7684\u670d\u52a1\uff0c\u4e5f\u90fd\u5e76\u4e0d\u53ea\u662f\u4e00\u53f0\u670d\u52a1\u5668\u63d0\u4f9b\u670d\u52a1\u5668\uff0c\u6240\u4ee5\u5c31\u5b58\u5728\u4e00\u4e2a\u7f51\u7ad9\u5728\u4e0d\u540c\u7684\u533a\u57df\u89e3\u6790\u4e0d\u540c\u7684 ip \uff0c\u81ea\u7136\u8fd9\u4e2a ip \u5bf9\u4e8e\u4f60\u7684\u7535\u8111\u800c\u8a00\u5ef6\u8fdf\u8d8a\u4f4e\u8d8a\u597d\uff0c\u800c\u8fd9\u5f97\u76ca\u4e8e EDNS \u534f\u8bae\uff0cEDNS \u534f\u8bae\u662f DNS \u534f\u8bae\u7684\u6269\u5145\uff0c\u5b83\u662fgoogle\u63d0\u4ea4\u4e86\u4e00\u4efdDNS\u6269\u5c55\u534f\u8bae\u3002Google \u5927\u6cd5\u597d\u3002\u7528\u901a\u8baf\u5f55\u6bd4\u55bb\uff1a\u4f60\u5728\u5c71\u4e1c\u67e5\u627e\u6559\u80b2\u5c40\u7684\u6295\u8bc9\u7535\u8bdd\uff0c\u5e94\u8be5\u544a\u8bc9\u4f60\u7684\u4e0d\u662f\u4e2d\u592e\u6559\u80b2\u5c40\u7684\u7535\u8bdd\uff0c\u5f53\u7136\u4e2d\u592e\u6559\u80b2\u5c40\u4e5f\u80fd\u89e3\u51b3\u95ee\u9898\u54a9\uff0c\u4f46\u4f60\u4e0d\u80fd\u8d8a\u7ea7\uff08\u4e0a\u8bbf<\/del>\uff09\u554a\uff01~\uff08\u8ba4\u771f\u8138\uff09<\/p>\n\n\n\n

DNS \u6295\u6bd2<\/h4>\n\n\n\n

\u7531\u4e8e DNS \u670d\u52a1\u672c\u8eab\u662f\u4e0d\u5b58\u5728\u8eab\u4efd\u6821\u9a8c\u673a\u5236\u7684\uff0c\u6240\u4ee5\u53ef\u4ee5\u88ab\u5c45\u5fc3\u53f5\u6d4b\u7684\u4eba\u5229\u7528\uff0c\u5f53\u6536\u5230 DNS \u89e3\u6790\u7ed3\u679c\u65f6\u4f60\u5e76\u4e0d\u80fd\u786e\u8ba4\u5bf9\u65b9\u7684\u8eab\u4efd\uff0c\u800c\u7cfb\u7edf\u4f1a\u4f18\u5148\u628a\u7b2c\u4e00\u4e2a\u56de\u590d\u5185\u5bb9\u5f53\u4f5c\u7ed3\u679c\u3002\u5982\u679c\u4e00\u53ea\u8033\u6735\u548c\u5634\u5df4\u5b58\u5728\u4e8e\u4f60\u548c DNS \u670d\u52a1\u5668\u4e4b\u95f4\uff0c\u542c\u5230\u4f60\u53d1\u7684\u8bf7\u6c42\uff0c\u63d0\u524d\u544a\u8bc9\u4f60\u9519\u8bef\u7684\u7ed3\u679c\uff0c\u90a3\u4e48\u4f60\u7684 DNS \u89e3\u6790\u5c31\u88ab\u9519\u8bef\u7684\u7ed3\u679c\u6c61\u67d3\u4e86\uff0c\u8fd9\u88ab\u53eb\u505a DNS \u6295\u6bd2\u653b\u51fb\uff0c\u4e5f\u662f gfw \u7684\u4f17\u591a\u624b\u6bb5\u4e4b\u4e00\u3002\u57282010\u5e74\u7531\u4e8e\u4e2d\u56fd\u7684 DNS \u6295\u6bd2\u5bfc\u81f4\u4e86\u5168\u7403 Google \u8bbf\u95ee\u53d7\u963b\u3002<\/p>\n\n\n\n

\u4e3a\u4ec0\u4e48\u6e05\u7406\u7f13\u5b58<\/h4>\n\n\n\n

\u73b0\u5728\u7684\u6d4f\u89c8\u5668\u3001\u64cd\u4f5c\u7cfb\u7edf\u548c\u6bcf\u4e00\u7ea7 DNS \u670d\u52a1\u5668\u90fd\u6709 DNS \u7f13\u5b58\u673a\u5236\uff0c\u800c\u4e14\u90fd\u4f1a\u5e26\u6709 timeout \u65f6\u95f4\uff0c\u51e0\u5206\u949f\u5230\u51e0\u5341\u5206\u949f\u4e0d\u7b49\uff0c\u4f46\u6709\u4e9b\u60c5\u51b5\u4e0b\u7528\u6237\u9700\u8981\u5f3a\u5236\u5237\u65b0 DNS \u7f13\u5b58\uff0c\u6bd4\u5982\uff1a<\/p>\n\n\n\n

  1. \u67d0\u4e2a\u81ea\u5df1\u5173\u6ce8\u7684\u57df\u540d\u66f4\u6362\u4e86 IP \u5730\u5740\u3002<\/li>
  2. \u66f4\u6362\u4e86\u4e00\u4e2a DNS \u5730\u5740\u65f6\u5e0c\u671b\u91cd\u65b0\u7f13\u5b58\u3002<\/li>
  3. \u5728\u56fd\u5185\u7f51\u7edc\u4e2d\u666e\u904d\u5b58\u5728 DNS \u6295\u6bd2\uff0c\u4f7f\u7528\u79d1\u5b66\u4e0a\u7f51\u524d\uff0c\u6e05\u7406 DNS \u7f13\u5b58\u4e5f\u5f88\u5fc5\u8981\u3002<\/li><\/ol>\n\n\n\n

    \u6e05\u7406\u7684\u65b9\u6cd5<\/h4>\n\n\n\n

    \u64cd\u4f5c\u7cfb\u7edf\uff1a<\/p>\n\n\n\n

    • windows:\n ipconfig \/flushdns\n <\/code><\/li>
    • MacOS 10.5 and 10.6:\n sudo dscacheutil -flushcache\n <\/code><\/li>
    • MacOS 10.7, 10.8, and 10.9\n sudo killall -HUP mDNSResponder\n <\/code><\/li>
    • Linux\u53d6\u51b3\u4e8e\u4f60\u4f7f\u7528\u7684 DNS client \u548c\u64cd\u4f5c\u7cfb\u7edf\u7248\u672c\u3002\uff08\u4f1a\u7528 Linux \u7684\u670b\u53cb\u81ea\u5df1\u5e94\u8be5\u53ef\u4ee5\u641e\u5b9a\u7684\uff09<\/li><\/ul>\n\n\n\n

      \u6d4f\u89c8\u5668\uff1a+ Chrome\n chrome:\/\/net-internals\/#dns\n <\/code>
      \u65b0\u6807\u7b7e\u4e5f\u6253\u5f00\u8fd9\u4e2a\u5730\u5740\uff0c\u70b9\u51fb Clear host cache\u3002<\/p>\n\n\n\n

      • Windows EdgeEdge \u548c Window \u7d27\u5bc6\u76f8\u5173\uff0c\u4ec5\u9700\u8981\u6e05\u9664\u7cfb\u7edf Cache\u3002<\/li>
      • Firefox\u672a\u627e\u5230\u65b9\u6cd5\uff0c\u91cd\u542f\u706b\u72d0\u5427\u3002<\/li><\/ul>\n\n\n\n

        \u624b\u673a\uff1a<\/p>\n\n\n\n

        • \u5b89\u5353 and iOS \uff1a \u5f00\u5173\u4e00\u6b21\u98de\u884c\u6a21\u5f0f\u5373\u53ef\u3002<\/li><\/ul>\n\n\n\n

          \u540e<\/h4>\n\n\n\n

          \u751f\u6d3b\u8fd9\u70ed\u7231\u7684\u571f\u5730\u4e0a\uff0c\u603b\u662f\u5f88\u56f0\u60d1\uff0c\u5f77\u5fa8\u3002\u5e78\u597d\u5b58\u5728\u8ba1\u7b97\u673a\u3001\u4e92\u8054\u7f51\u8fd9\u53e6\u4e00\u4e2a\u4e16\u754c\uff0c\u4e00\u5207\u90fd\u5efa\u7acb\u4e8e\u67d0\u4e9b\u5df2\u77e5\u79e9\u5e8f\u4e0a\u7684\u4e16\u754c\uff0c\u53ef\u4ee5\u5c06\u4ed6\u4eec\u4e32\u6210\u7ebf\u8f7b\u6613\u7684\u8bb0\u4e0b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

          \u4ec0\u4e48\u662f DNS DNS\uff08\u82f1\u6587\uff1aDomain Name System\uff0c\u7f29\u5199\uff1aDNS\uff09\uff0c\u4e2d\u6587\u540d\uff1a\u7f51\u57df\u540d\u79f0\u7cfb\u7edf\uff0c\u662f\u4e92\u8054\u7f51\u4e2d\u91cd\u8981\u7684\u4e00\u73af\uff0c\u5b83\u4f5c\u4e3a\u5c06\u57df\u540d\u548cIP\u5730\u5740\u76f8\u4e92\u6620\u5c04\u7684\u4e00\u4e2a\u5206\u5e03\u5f0f\u6570\u636e\u5e93\uff0c\u80fd\u591f\u4f7f\u4eba\u66f4\u65b9\u4fbf\u5730\u8bbf\u95ee\u4e92\u8054\u7f51\u3002\u751f\u6d3b\u4e2d DNS \u4e5f\u6210\u4e86\u201c\u63d0\u4f9b DN…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[60],"topic":[],"class_list":["post-68268","post","type-post","status-publish","format-standard","hentry","category-technology","tag-dns"],"_links":{"self":[{"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/posts\/68268","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/comments?post=68268"}],"version-history":[{"count":1,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/posts\/68268\/revisions"}],"predecessor-version":[{"id":68269,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/posts\/68268\/revisions\/68269"}],"wp:attachment":[{"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/media?parent=68268"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/categories?post=68268"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/tags?post=68268"},{"taxonomy":"topic","embeddable":true,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/topic?post=68268"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}