{"id":2167,"date":"2020-06-07T13:54:12","date_gmt":"2020-06-07T05:54:12","guid":{"rendered":"https:\/\/www.myvoipapp.com\/blogs\/yxh\/?p=2167"},"modified":"2020-06-07T14:02:40","modified_gmt":"2020-06-07T06:02:40","slug":"name%e3%80%81cname-%e6%a0%bc%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/www.myvoipapp.com\/blogs\/yxh\/2020\/06\/07\/name%e3%80%81cname-%e6%a0%bc%e5%bc%8f\/","title":{"rendered":"NAME\u3001CNAME \u683c\u5f0f"},"content":{"rendered":"\n<p>\u603b\u4f53\u800c\u8a00\uff0c \u65e9\u671f DNS \u534f\u8bae\u662f\u4e2a\u6bd4\u8f83\u7b80\u5355\u7684\u534f\u8bae\u3002\u53d7\u9650\u4e8e UDP \u5927\u5c0f\u548c\u6570\u636e\u91cf\uff0c \u57fa\u4e8e UDP \u7684 DNS \u534f\u8bae\u9650\u5236\u4e86\u5305\u5927\u5c0f\uff0c\u5e76\u4e14\u91c7\u7528\u4e8c\u8fdb\u5236\u7f16\u7801\u65b9\u5f0f\u529b\u6c42\u51cf\u5c11\u6570\u636e\u91cf\u5360\u7528\u3002<\/p>\n\n\n\n<p>\u4e8c\u8fdb\u5236\u7f16\u7801\u65b9\u5f0f\u76f8\u6bd4\u6587\u672c\u65b9\u5f0f\uff08\u4f8b\u5982HTTP\u3001SIP\u3001SMTP\u7b49\uff09\u6700\u660e\u663e\u7684\u7f3a\u70b9\u5c31\u662f\u4e0d\u76f4\u89c2\uff0c\u518d\u7528\u4e00\u4e9b\u6280\u5de7\u51cf\u5c11\u6570\u636e\u91cf\uff0cDNS \u534f\u8bae\u5728\u5b9a\u4e49\u3001\u5b9e\u73b0\u65b9\u9762\u603b\u663e\u5f97\u6709\u4e9b\u5f2f\u5f2f\u7ed5\u7ed5\u3002<\/p>\n\n\n\n<p>\u6bd4\u5982 NAME\u3001CNAME \u7b49\u7ed3\u6784\u7684\u7f16\u7801\u3002<\/p>\n\n\n\n<p>\u672c\u6587\u8bb0\u5f55\u4e86\u8fd9\u4e9b\u53e4\u602a\u7684\u7f16\u7801\u65b9\u5f0f\uff0c\u65b9\u4fbf\u4ee5\u540e\u67e5\u627e\uff0c\u5e76\u5e2e\u52a9\u540e\u7eed\u7684\u5f00\u53d1\u8005\u4e0d\u4f1a\u88ab\u4ee3\u7801\u7ed9\u7ed5\u6655\u3002\u4f5c\u4e3a\u6211\u4e2a\u4eba\u6765\u8bf4\uff0c\u8fd8\u662f\u5c3d\u5feb\u5fd8\u8bb0\u8fd9\u4e9b\u5427\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p><strong>\u65b9\u5f0f\u4e00\uff1a<\/strong>\u7eaf\u538b\u7f29\u7f16\u7801\u65b9\u5f0f<\/p>\n\n\n\n<p>\u8fd9\u79cd\u65b9\u5f0f\u5e94\u7528\u5f88\u666e\u904d\uff0c\u4ee5\u201c0xc0\u201d\u6807\u8bb0\u5f00\u59cb\uff0c\u52a0\u4e0a\u4e00\u4e2a\u5b57\u8282\u7684 offset\uff0c\u8fdb\u884c\u6d88\u606f\u5305\u5185\u7684\u5bfb\u5740\u5373\u53ef\u3002\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"917\" height=\"110\" src=\"https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-content\/uploads\/2020\/06\/offset.png\" alt=\"DNS offset \u7f16\u7801\" class=\"wp-image-2168\" srcset=\"https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-content\/uploads\/2020\/06\/offset.png 917w, https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-content\/uploads\/2020\/06\/offset-300x36.png 300w, https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-content\/uploads\/2020\/06\/offset-768x92.png 768w, https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-content\/uploads\/2020\/06\/offset-604x72.png 604w\" sizes=\"auto, (max-width: 917px) 100vw, 917px\" \/><figcaption>offset \u65b9\u5f0f\u7f16\u7801<\/figcaption><\/figure>\n\n\n\n<p>\u5176\u4e2d\uff0c 0x0c \u5c31\u662f\u504f\u79fb\u91cf\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p><strong>\u65b9\u5f0f\u4e8c\uff1a<\/strong>\u76f4\u63a5\u7f16\u7801\u65b9\u5f0f<\/p>\n\n\n\n<p>\u8fd9\u79cd\u65b9\u5f0f\u6bd4\u8f83\u76f4\u63a5\uff0c\u5360\u7528\u6570\u636e\u91cf\u4e5f\u76f8\u5bf9\u5927\u4e00\u4e9b\uff0c\u5c06\u57df\u540d\u5b8c\u6574\u4fe1\u606f\u5b58\u5728\u6570\u636e\u5305\u4e2d\u3002\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"949\" height=\"113\" src=\"https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-content\/uploads\/2020\/06\/orig.png\" alt=\"\u76f4\u63a5\u7f16\u7801\" class=\"wp-image-2169\" srcset=\"https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-content\/uploads\/2020\/06\/orig.png 949w, https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-content\/uploads\/2020\/06\/orig-300x36.png 300w, https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-content\/uploads\/2020\/06\/orig-768x91.png 768w, https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-content\/uploads\/2020\/06\/orig-604x72.png 604w\" sizes=\"auto, (max-width: 949px) 100vw, 949px\" \/><figcaption>\u76f4\u63a5\u7f16\u7801\u65b9\u5f0f<\/figcaption><\/figure>\n\n\n\n<p>\u9700\u8981\u8bf4\u660e\u7684\u662f\uff1a\u5e76\u4e0d\u662f\u76f4\u63a5\u5c06\u6240\u6709\u5b57\u7b26\u5b58\u8fdb\u53bb\u5c31 OK \u4e86\u3002\u5bf9\u4e8e\u57df\u540d\u6570\u636e\uff0c\u4ee5\u201c.&#8221;\u7b26\u53f7\u5206\u5272\u6210\u51e0\u4e2a\u5355\u5143\uff0c\u6bcf\u4e2a\u5355\u5143\u6570\u636e\u91c7\u7528 \u201clength + value\u201d \u65b9\u5f0f\u8fdb\u884c\u7f16\u7801\uff0c\u6700\u540e\u4ee50x00\u7ed3\u675f\u7f16\u7801\u3002\u4ee5\u4e0a\u8ff0\u6570\u636e\u4e3a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><span class=\"has-inline-color has-vivid-red-color\"><strong>08<\/strong><\/span> 6e 73 69 6e 61 69 6d 67 <strong><span class=\"has-inline-color has-vivid-red-color\">04<\/span><\/strong> 67 73 6c 62 <strong><span class=\"has-inline-color has-vivid-red-color\">08<\/span><\/strong> 73\n69 6e 61 65 64 67 65 <strong><span class=\"has-inline-color has-vivid-red-color\">03<\/span><\/strong> 63 6f 6d <strong>00<\/strong><\/pre>\n\n\n\n<p>\u6bd4\u5982\uff0c\u7b2c\u4e00\u4e2a 0x08\uff0c\u8bf4\u660e\u540e\u9762\u7684\u201cnsinaimg\u201d\uff08\u5373 6e 73 69 6e 61 69 6d 67\uff09\u957f\u5ea6\uff1b\u7136\u540e\u662f 0x04\uff0c\u8bf4\u660e\u540e\u9762\u7684\u201cgslb\u201d\uff08\u537367 73 6c 62\uff09\u957f\u5ea6\u2026\u2026\u5176\u4ed6\u5355\u5143\u7c7b\u63a8\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p><strong>\u65b9\u5f0f\u4e09\uff1a <\/strong>\u6df7\u5408\u7f16\u7801\u65b9\u5f0f<\/p>\n\n\n\n<p>\u8fd9\u79cd\u65b9\u5f0f\u5176\u5b9e\u5c31\u662f\u7efc\u5408\u4e86\u4e0a\u8ff0\u4e24\u79cd\u65b9\u5f0f\u3002\u4ee5\u76f4\u63a5\u7f16\u7801\u65b9\u5f0f\u5f00\u59cb\uff0c\u7136\u540e\u4ee5\u538b\u7f29\uff08\u504f\u79fb\uff09\u7f16\u7801\u65b9\u5f0f\u7ed3\u5c3e\u3002\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"944\" height=\"76\" src=\"https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-content\/uploads\/2020\/06\/mix.png\" alt=\"\u6df7\u5408\u7f16\u7801\u65b9\u5f0f\" class=\"wp-image-2170\" srcset=\"https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-content\/uploads\/2020\/06\/mix.png 944w, https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-content\/uploads\/2020\/06\/mix-300x24.png 300w, https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-content\/uploads\/2020\/06\/mix-768x62.png 768w, https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-content\/uploads\/2020\/06\/mix-604x49.png 604w\" sizes=\"auto, (max-width: 944px) 100vw, 944px\" \/><figcaption>\u6df7\u5408\u7f16\u7801\u65b9\u5f0f<\/figcaption><\/figure>\n\n\n\n<p>\u5bf9\u56fe\u4e2d\u7684\u6570\u636e\u7801\u6d41\u63cf\u8ff0\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><span class=\"has-inline-color has-vivid-red-color\">03<\/span> 6b 6c 6e <span class=\"has-inline-color has-vivid-red-color\">04<\/span> 67 72 69 64 <strong>c0 38<\/strong><\/pre>\n\n\n\n<p>0x03 \u63cf\u8ff0\u4e86\u201ckln\u201d\uff08\u5373 6b 6c 6e\uff09\u7684\u957f\u5ea6\uff0c0x04 \u63cf\u8ff0\u4e86\u201cgrid\u201d\uff08\u5373 67 72 69 64\uff09\u7684\u957f\u5ea6\uff0c\u800c\u57df\u540d\u7684\u540e\u7eed\u90e8\u5206\uff0c\u901a\u8fc7\u201cc0 38\u201d\u7f16\u7801\u53ef\u4ee5\u77e5\u9053\uff1a\u9700\u8981\u504f\u79fb0x38\u5b57\u8282\u83b7\u53d6\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u603b\u4f53\u800c\u8a00\uff0c \u65e9\u671f DNS \u534f\u8bae\u662f\u4e2a\u6bd4\u8f83\u7b80\u5355\u7684\u534f\u8bae\u3002\u53d7\u9650\u4e8e UDP \u5927\u5c0f\u548c\u6570\u636e\u91cf\uff0c \u57fa\u4e8e UDP \u7684 DNS \u534f\u8bae\u9650\u5236\u4e86\u5305\u5927\u5c0f\uff0c\u5e76\u4e14\u91c7\u7528\u4e8c\u8fdb\u5236\u7f16\u7801\u65b9\u5f0f\u529b\u6c42\u51cf\u5c11\u6570\u636e&#8230;<\/p>\n<p class=\"read-more\"><a class=\"btn btn-default\" href=\"https:\/\/www.myvoipapp.com\/blogs\/yxh\/2020\/06\/07\/name%e3%80%81cname-%e6%a0%bc%e5%bc%8f\/\"> Read More<span class=\"screen-reader-text\">  Read More<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[27],"tags":[773,774,395,771,775,470,772],"class_list":["post-2167","post","type-post","status-publish","format-standard","hentry","category-27","tag-773","tag-cname","tag-dns","tag-format","tag-name","tag-rfc","tag-772"],"_links":{"self":[{"href":"https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-json\/wp\/v2\/posts\/2167","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-json\/wp\/v2\/comments?post=2167"}],"version-history":[{"count":6,"href":"https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-json\/wp\/v2\/posts\/2167\/revisions"}],"predecessor-version":[{"id":2176,"href":"https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-json\/wp\/v2\/posts\/2167\/revisions\/2176"}],"wp:attachment":[{"href":"https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-json\/wp\/v2\/media?parent=2167"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-json\/wp\/v2\/categories?post=2167"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-json\/wp\/v2\/tags?post=2167"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}