{"id":43,"date":"2018-04-23T13:00:18","date_gmt":"2018-04-23T05:00:18","guid":{"rendered":"http:\/\/140.143.235.248\/?p=43"},"modified":"2018-04-23T13:00:18","modified_gmt":"2018-04-23T05:00:18","slug":"dig%e5%91%bd%e4%bb%a4%e4%bd%bf%e7%94%a8%e5%b8%ae%e5%8a%a9","status":"publish","type":"post","link":"https:\/\/subk.me\/?p=43","title":{"rendered":"dig\u547d\u4ee4\u4f7f\u7528\u5e2e\u52a9"},"content":{"rendered":"

dig \u547d\u4ee4\u4e3b\u8981\u7528\u6765\u4ece DNS \u57df\u540d\u670d\u52a1\u5668\u67e5\u8be2\u4e3b\u673a\u5730\u5740\u4fe1\u606f\u3002<\/p>\n

\u67e5\u8be2\u5355\u4e2a\u57df\u540d\u7684 DNS \u4fe1\u606f<\/h1>\n

dig \u547d\u4ee4\u6700\u5178\u578b\u7684\u7528\u6cd5\u5c31\u662f\u67e5\u8be2\u5355\u4e2a\u4e3b\u673a\u7684\u4fe1\u606f\u3002<\/p>\n

\n
$ dig baidu.com<\/pre>\n<\/div>\n\"\"\n
dig \u547d\u4ee4\u9ed8\u8ba4\u7684\u8f93\u51fa\u4fe1\u606f\u6bd4\u8f83\u4e30\u5bcc\uff0c\u5927\u6982\u53ef\u4ee5\u5206\u4e3a 5 \u4e2a\u90e8\u5206\u3002\n\u7b2c\u4e00\u90e8\u5206\u663e\u793a dig \u547d\u4ee4\u7684\u7248\u672c\u548c\u8f93\u5165\u7684\u53c2\u6570\u3002\n\u7b2c\u4e8c\u90e8\u5206\u663e\u793a\u670d\u52a1\u8fd4\u56de\u7684\u4e00\u4e9b\u6280\u672f\u8be6\u60c5\uff0c\u6bd4\u8f83\u91cd\u8981\u7684\u662f status\u3002\u5982\u679c status \u7684\u503c\u4e3a NOERROR \u5219\u8bf4\u660e\u672c\u6b21\u67e5\u8be2\u6210\u529f\u7ed3\u675f\u3002\n\u7b2c\u4e09\u90e8\u5206\u4e2d\u7684 “QUESTION SECTION” \u663e\u793a\u6211\u4eec\u8981\u67e5\u8be2\u7684\u57df\u540d\u3002\n\u7b2c\u56db\u90e8\u5206\u7684 “ANSWER SECTION” \u662f\u67e5\u8be2\u5230\u7684\u7ed3\u679c\u3002\n\u7b2c\u4e94\u90e8\u5206\u5219\u662f\u672c\u6b21\u67e5\u8be2\u7684\u4e00\u4e9b\u7edf\u8ba1\u4fe1\u606f\uff0c\u6bd4\u5982\u7528\u4e86\u591a\u957f\u65f6\u95f4\uff0c\u67e5\u8be2\u4e86\u54ea\u4e2a DNS \u670d\u52a1\u5668\uff0c\u5728\u4ec0\u4e48\u65f6\u95f4\u8fdb\u884c\u7684\u67e5\u8be2\u7b49\u7b49\u3002<\/p>\n
\u9ed8\u8ba4\u60c5\u51b5\u4e0b dig \u547d\u4ee4\u67e5\u8be2 A \u8bb0\u5f55\uff0c\u4e0a\u56fe\u4e2d\u663e\u793a\u7684 A \u5373\u8bf4\u660e\u67e5\u8be2\u7684\u8bb0\u5f55\u7c7b\u578b\u4e3a A \u8bb0\u5f55\u3002\u5728\u5c1d\u8bd5\u67e5\u8be2\u5176\u5b83\u7c7b\u578b\u7684\u8bb0\u5f55\u524d\u8ba9\u6211\u4eec\u5148\u6765\u4e86\u89e3\u4e00\u4e0b\u5e38\u89c1\u7684 DNS \u8bb0\u5f55\u7c7b\u578b\u3002<\/p>\n
\u5e38\u89c1 DNS \u8bb0\u5f55\u7684\u7c7b\u578b<\/h1>\n\n\n\n\n\n\n\n\n\n\n
\u7c7b\u578b<\/td>\n\u76ee\u7684<\/td>\n<\/tr>\n
A<\/td>\n\u5730\u5740\u8bb0\u5f55\uff0c\u7528\u6765\u6307\u5b9a\u57df\u540d\u7684 IPv4 \u5730\u5740\uff0c\u5982\u679c\u9700\u8981\u5c06\u57df\u540d\u6307\u5411\u4e00\u4e2a IP \u5730\u5740\uff0c\u5c31\u9700\u8981\u6dfb\u52a0 A \u8bb0\u5f55\u3002<\/td>\n<\/tr>\n
AAAA<\/td>\n\u7528\u6765\u6307\u5b9a\u4e3b\u673a\u540d(\u6216\u57df\u540d)\u5bf9\u5e94\u7684 IPv6 \u5730\u5740\u8bb0\u5f55\u3002<\/td>\n<\/tr>\n
CNAME<\/td>\n\u5982\u679c\u9700\u8981\u5c06\u57df\u540d\u6307\u5411\u53e6\u4e00\u4e2a\u57df\u540d\uff0c\u518d\u7531\u53e6\u4e00\u4e2a\u57df\u540d\u63d0\u4f9b ip \u5730\u5740\uff0c\u5c31\u9700\u8981\u6dfb\u52a0 CNAME \u8bb0\u5f55\u3002<\/td>\n<\/tr>\n
MX<\/td>\n\u5982\u679c\u9700\u8981\u8bbe\u7f6e\u90ae\u7bb1\uff0c\u8ba9\u90ae\u7bb1\u80fd\u591f\u6536\u5230\u90ae\u4ef6\uff0c\u9700\u8981\u6dfb\u52a0 MX \u8bb0\u5f55\u3002<\/td>\n<\/tr>\n
NS<\/td>\n\u57df\u540d\u670d\u52a1\u5668\u8bb0\u5f55\uff0c\u5982\u679c\u9700\u8981\u628a\u5b50\u57df\u540d\u4ea4\u7ed9\u5176\u4ed6 DNS \u670d\u52a1\u5668\u89e3\u6790\uff0c\u5c31\u9700\u8981\u6dfb\u52a0 NS \u8bb0\u5f55\u3002<\/td>\n<\/tr>\n
SOA<\/td>\nSOA \u8fd9\u79cd\u8bb0\u5f55\u662f\u6240\u6709\u533a\u57df\u6027\u6587\u4ef6\u4e2d\u7684\u5f3a\u5236\u6027\u8bb0\u5f55\u3002\u5b83\u5fc5\u987b\u662f\u4e00\u4e2a\u6587\u4ef6\u4e2d\u7684\u7b2c\u4e00\u4e2a\u8bb0\u5f55\u3002<\/td>\n<\/tr>\n
TXT<\/td>\n\u53ef\u4ee5\u5199\u4efb\u4f55\u4e1c\u897f\uff0c\u957f\u5ea6\u9650\u5236\u4e3a 255\u3002\u7edd\u5927\u591a\u6570\u7684 TXT\u8bb0\u5f55\u662f\u7528\u6765\u505a SPF \u8bb0\u5f55(\u53cd\u5783\u573e\u90ae\u4ef6)\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u67e5\u8be2 CNAME \u7c7b\u578b\u7684\u8bb0\u5f55<\/h1>\n
\u9664\u4e86 A \u8bb0\u5f55\uff0c\u5e38\u89c1\u7684 DNS \u8bb0\u5f55\u8fd8\u6709 CNAME\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u67e5\u8be2\u65f6\u6307\u5b9a\u8981\u67e5\u8be2\u7684 DNS \u8bb0\u5f55\u7c7b\u578b\uff1a<\/p>\n
\n
$ dig abc.filterinto.com CNAME<\/pre>\n<\/div>\n\"\"\n
\u8fd9\u6837\u7ed3\u679c\u4e2d\u5c31\u53ea\u6709 CNAME \u7684\u8bb0\u5f55\u3002\u5176\u5b9e\u6211\u4eec\u53ef\u4ee5\u5728\u67e5\u8be2\u4e2d\u6307\u5b9a\u4efb\u4f55 DNS \u8bb0\u5f55\u7684\u7c7b\u578b\u3002<\/p>\n
\u4ece\u6307\u5b9a\u7684 DNS \u670d\u52a1\u5668\u4e0a\u67e5\u8be2<\/h1>\n
\u7531\u4e8e\u4e00\u4e9b\u539f\u56e0\uff0c\u5e0c\u671b\u4ece\u6307\u5b9a\u7684 DNS \u670d\u52a1\u5668\u4e0a\u8fdb\u884c\u67e5\u8be2(\u4ece\u9ed8\u8ba4\u7684 DNS \u670d\u52a1\u5668\u4e0a\u83b7\u5f97\u7684\u7ed3\u679c\u53ef\u80fd\u4e0d\u51c6\u786e)\u3002\u6307\u5b9a DNS \u670d\u52a1\u5668\u7684\u65b9\u5f0f\u4e3a\u4f7f\u7528 @ \u7b26\u53f7\uff1a<\/p>\n
\n
$ dig @8.8.8.8 abc.filterinto.com<\/pre>\n<\/div>\n\"\"\n
\u4ece\u4e0a\u56fe\u53ef\u4ee5\u770b\u5230\u672c\u6b21\u67e5\u8be2\u7684 DNS \u670d\u52a1\u5668\u4e3a 8.8.8.8\u3002<\/p>\n
\u5982\u679c\u4e0d\u6307\u5b9a DNS \u670d\u52a1\u5668\uff0cdig \u4f1a\u4f9d\u6b21\u4f7f\u7528 \/etc\/resolv.conf \u91cc\u7684\u5730\u5740\u4f5c\u4e3a DNS \u670d\u52a1\u5668\uff1a<\/p>\n\"\"\n
\n
$ dig abc.filterinto.com<\/pre>\n<\/div>\n
\u4e0a\u9762\u67e5\u8be2\u7684 DNS \u670d\u52a1\u5668\u5c31\u53d8\u6210\u4e86\uff1a<\/p>\n\"\"\n
\u53cd\u5411\u67e5\u8be2<\/h1>\n
\u5728\u524d\u9762\u7684\u67e5\u8be2\u4e2d\u6211\u4eec\u6307\u5b9a\u4e86\u67e5\u8be2\u670d\u52a1\u5668\u4e3a 8.8.8.8\uff0c\u8fd9\u662f\u8c01\u5bb6\u7684 DNS \u670d\u52a1\u5668\uff1f\u5176\u5b9e\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 dig \u7684 -x \u9009\u9879\u6765\u53cd\u5411\u89e3\u6790 IP \u5730\u5740\u5bf9\u5e94\u7684\u57df\u540d\uff1a<\/p>\n
\n
$ dig -x 8.8.8.8 +short<\/pre>\n<\/div>\n\"\"\n
\u597d\u5427\uff0c\u5e94\u8be5\u662f\u8c37\u6b4c\u5bb6\u7684\uff0c\u53ef\u4ee5\u653e\u5fc3\u4f7f\u7528\u4e86\u3002<\/p>\n
\u63a7\u5236\u663e\u793a\u7ed3\u679c<\/h1>\n
dig \u547d\u4ee4\u9ed8\u8ba4\u8fd4\u56de\u7684\u7ed3\u679c\u5c55\u793a\u8be6\u7ec6\u7684\u4fe1\u606f\uff0c\u5982\u679c\u8981\u83b7\u5f97\u7cbe\u7b80\u7684\u7ed3\u679c\u53ef\u4ee5\u4f7f\u7528 +short \u9009\u9879\uff1a<\/p>\n
\n
$ dig +short abc.filterinto.com<\/pre>\n<\/div>\n\"\"\n
\u8fd9\u4e0b\u663e\u793a\u7684\u7ed3\u679c\u5c31\u6e05\u723d\u591a\u4e86\u3002\n\u5176\u5b9e\u6211\u4eec\u8fd8\u53ef\u4ee5\u901a\u8fc7\u66f4\u591a\u9009\u9879\u6765\u63a7\u5236\u8f93\u51fa\u7684\u5185\u5bb9\uff0c\u6bd4\u5982\u53ea\u60f3\u663e\u793a “ANSWER SECTION” \u7684\u5185\u5bb9\uff1a<\/p>\n
\n
$ dig abc.filterinto.com +nocomments +noquestion +noauthority +noadditional +nostats<\/pre>\n<\/div>\n\"\"\n
\u8fd9\u4e2a\u7ed3\u679c\u5f88\u4e0d\u9519\uff0c\u5c31\u662f\u4f7f\u7528\u7684\u9009\u9879\u592a\u591a\u4e86(dig \u547d\u4ee4\u6709\u5f88\u591a\u8fd9\u6837\u7684\u9009\u9879\uff0c\u8be6\u60c5\u8bf7\u53c2\u8003\u4f7f\u7528\u624b\u518c)\u3002\u6211\u4eec\u53ef\u4ee5\u6362\u4e00\u79cd\u4f18\u96c5\u4e00\u4e9b\u7684\u65b9\u5f0f\u6765\u5b9e\u73b0\u548c\u4e0a\u9762\u76f8\u540c\u7684\u7ed3\u679c\uff1a<\/p>\n
\n
$ dig abc.filterinto.com +noall +answer<\/pre>\n<\/div>\n
\u67e5\u770b TTL(Time to Live)<\/h1>\n
TTL \u662f DNS \u89e3\u6790\u4e2d\u5f88\u91cd\u8981\u7684\u6307\u6807\uff0c\u4e3b\u8981\u662f\u63a7\u5236 DNS \u8bb0\u5f55\u5728 DNS \u670d\u52a1\u5668\u4e0a\u7684\u7f13\u5b58\u65f6\u95f4\uff1a<\/p>\n
\n
$ dig abc.filterinto.com<\/pre>\n<\/div>\n\"\"\n
\u67e5\u8be2\u7ed3\u679c\u4e2d\u7684\u5355\u4f4d\u662f\u79d2\u3002\u901a\u8fc7\u4e0b\u9762\u7684\u547d\u4ee4\u53ef\u4ee5\u663e\u793a\u7cbe\u7b80\u4e00\u4e9b\u6d4b\u7ed3\u679c\uff1a<\/p>\n
\n
$ dig +nocmd +noall +answer +ttlid abc.filterinto.com<\/pre>\n<\/div>\n\"\"\n
\u8ddf\u8e2a\u6574\u4e2a\u67e5\u8be2\u8fc7\u7a0b<\/h1>\n
\u5982\u679c\u4f60\u597d\u5947 dig \u547d\u4ee4\u6267\u884c\u67e5\u8be2\u65f6\u90fd\u7ecf\u5386\u4e86\u54ea\u4e9b\u8fc7\u7a0b\uff0c\u4f60\u53ef\u4ee5\u5c1d\u8bd5\u4f7f\u7528 +trace \u9009\u9879\u3002\u5b83\u4f1a\u8f93\u51fa\u4ece\u6839\u57df\u5230\u6700\u7ec8\u7ed3\u679c\u7684\u6240\u6709\u4fe1\u606f\uff1a<\/p>\n
\n
$ dig +trace abc.filterinto.com<\/pre>\n<\/div>\n\"\"\n
\u4e0a\u56fe\u4e2d\u663e\u793a\u7684\u5e76\u4e0d\u662f\u4e00\u4e2a\u5b8c\u6574\u7684\u7ed3\u679c\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u53ef\u4ee5\u81ea\u5df1\u5c1d\u8bd5\u3002<\/p>\n
\u603b\u7ed3<\/h1>\n
dig \u662f\u4e00\u4e2a\u5f88\u7ed9\u529b DNS \u67e5\u8be2\u5de5\u5177\uff0c\u672c\u6587\u4ec5\u4ecb\u7ecd\u4e86\u5176\u5e38\u89c1\u7528\u6cd5\uff0c\u66f4\u591a\u7684\u547d\u4ee4\u9009\u9879\u53ca\u4f7f\u7528\u65b9\u6cd5\u8bf7\u67e5\u770b man page\u3002<\/p>","protected":false},"excerpt":{"rendered":"
dig \u547d\u4ee4\u4e3b\u8981\u7528\u6765\u4ece DNS \u57df\u540d\u670d\u52a1\u5668\u67e5\u8be2\u4e3b\u673a\u5730\u5740\u4fe1\u606f\u3002 \u67e5\u8be2\u5355\u4e2a\u57df\u540d\u7684 DNS \u4fe1\u606f dig \u547d\u4ee4\u6700\u5178\u578b […]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[13],"class_list":["post-43","post","type-post","status-publish","format-standard","hentry","category-it","tag-dig"],"_links":{"self":[{"href":"https:\/\/subk.me\/index.php?rest_route=\/wp\/v2\/posts\/43","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/subk.me\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/subk.me\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/subk.me\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/subk.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=43"}],"version-history":[{"count":1,"href":"https:\/\/subk.me\/index.php?rest_route=\/wp\/v2\/posts\/43\/revisions"}],"predecessor-version":[{"id":44,"href":"https:\/\/subk.me\/index.php?rest_route=\/wp\/v2\/posts\/43\/revisions\/44"}],"wp:attachment":[{"href":"https:\/\/subk.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=43"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/subk.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=43"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/subk.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=43"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}