{"id":3756,"date":"2022-12-30T14:12:15","date_gmt":"2022-12-30T06:12:15","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=3756"},"modified":"2022-12-30T14:12:15","modified_gmt":"2022-12-30T06:12:15","slug":"%e6%b7%b1%e5%85%a5%e6%8e%a2%e7%b4%a2go%e8%aa%9e%e8%a8%80%e4%b8%ad%e7%9a%84dns%e5%8d%94%e8%ad%b0","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/go\/%e6%b7%b1%e5%85%a5%e6%8e%a2%e7%b4%a2go%e8%aa%9e%e8%a8%80%e4%b8%ad%e7%9a%84dns%e5%8d%94%e8%ad%b0\/","title":{"rendered":"\u6df1\u5165\u63a2\u7d22Go\u8a9e\u8a00\u4e2d\u7684DNS\u5354\u8b70"},"content":{"rendered":"

<\/p>\n

Go \u8a9e\u8a00\u4e2d\u7684 DNS \u5354\u8b70<\/h1>\n

DNS\uff08Domain Name System\uff09\u5354\u8b70\u662f\u4e00\u7a2e\u7528\u65bc\u5c07\u57df\u540d\u89e3\u6790\u70baIP\u5730\u5740\u7684\u5354\u8b70\uff0c\u5b83\u662f\u7db2\u7d61\u4e2d\u6700\u91cd\u8981\u7684\u5354\u8b70\u4e4b\u4e00\u3002Go \u8a9e\u8a00\u63d0\u4f9b\u4e86\u4e00\u500b\u7c21\u55ae\u800c\u5f37\u5927\u7684\u6a19\u6e96\u5eab\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u8f15\u9b06\u5730\u4f7f\u7528 DNS \u5354\u8b70\u3002<\/p>\n

<\/p>\n

Go \u8a9e\u8a00\u7684 net<\/span> \u5305\u63d0\u4f9b\u4e86\u4e00\u500b LookupHost<\/span> \u51fd\u6578\uff0c\u53ef\u4ee5\u7528\u65bc\u67e5\u627e\u4e3b\u6a5f\u7684IP\u5730\u5740\u3002\u5b83\u63a5\u53d7\u4e00\u500b\u4e3b\u6a5f\u540d\u4f5c\u70ba\u53c3\u6578\uff0c\u4e26\u8fd4\u56de\u4e00\u500b\u5b57\u7b26\u4e32\u5207\u7247\uff0c\u5176\u4e2d\u5305\u542b\u8a72\u4e3b\u6a5f\u7684IP\u5730\u5740\u3002<\/p>\n

\u4e0b\u9762\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528 LookupHost \u51fd\u6578\u67e5\u627e\u4e3b\u6a5f\u7684IP\u5730\u5740\uff1a<\/p>\n

\npackage main\n\nimport (\n    \"fmt\"\n    \"net\"\n)\n\nfunc main() {\n    hosts, err := net.LookupHost(\"www.example.com\")\n    if err != nil {\n        fmt.Println(err)\n        return\n    }\n\n    for _, host := range hosts {\n        fmt.Println(host)\n    }\n}\n<\/pre>\n
\u4e0a\u9762\u7684\u793a\u4f8b\u4ee3\u78bc\u5c07\u8fd4\u56de www.example.com \u7684IP\u5730\u5740\u3002<\/p>\n
\u9664\u4e86 LookupHost \u51fd\u6578\u4e4b\u5916\uff0cGo \u8a9e\u8a00\u9084\u63d0\u4f9b\u4e86\u4e00\u500b LookupSRV \u51fd\u6578\uff0c\u53ef\u4ee5\u7528\u65bc\u67e5\u627eSRV\u8a18\u9304\u3002SRV\u8a18\u9304\u662f\u4e00\u7a2e\u7279\u6b8a\u7684DNS\u8a18\u9304\uff0c\u7528\u65bc\u6307\u5b9a\u67d0\u500b\u670d\u52d9\u7684\u4e3b\u6a5f\u548c\u7aef\u53e3\u3002<\/p>\n
\u4e0b\u9762\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528 LookupSRV \u51fd\u6578\u67e5\u627eSRV\u8a18\u9304\uff1a<\/p>\n
\npackage main\n\nimport (\n    \"fmt\"\n    \"net\"\n)\n\nfunc main() {\n    _, srvs, err := net.LookupSRV(\"service\", \"tcp\", \"example.com\")\n    if err != nil {\n        fmt.Println(err)\n        return\n    }\n\n    for _, srv := range srvs {\n        fmt.Printf(\"%s:%d\\n\", srv.Target, srv.Port)\n    }\n}\n<\/pre>\n
\u4e0a\u9762\u7684\u793a\u4f8b\u4ee3\u78bc\u5c07\u8fd4\u56de example.com \u4e0a\u6307\u5b9a\u670d\u52d9\u7684\u4e3b\u6a5f\u548c\u7aef\u53e3\u3002<\/p>\n
Go \u8a9e\u8a00\u63d0\u4f9b\u4e86\u4e00\u500b\u7c21\u55ae\u800c\u5f37\u5927\u7684\u6a19\u6e96\u5eab\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u8f15\u9b06\u5730\u4f7f\u7528 DNS \u5354\u8b70\u3002LookupHost \u548c LookupSRV \u51fd\u6578\u53ef\u4ee5\u7528\u65bc\u67e5\u627e\u4e3b\u6a5f\u7684IP\u5730\u5740\u548cSRV\u8a18\u9304\uff0c\u53ef\u4ee5\u5927\u5927\u7c21\u5316\u958b\u767c\u8005\u7684\u5de5\u4f5c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6587\u7ae0\u6458\u8981\uff1a\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eGo\u8a9e\u8a00\u4e2d\u7684DNS\u5354\u8b70\uff0c\u8a73\u7d30\u4ecb\u7d39DNS\u5354\u8b70\u7684\u529f\u80fd\u3001\u67b6\u69cb\u3001\u61c9\u7528\u5834\u666f\uff0c\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528Go\u8a9e\u8a00\u4f86\u5be6\u73feDNS\u5354\u8b70\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[171,172],"tags":[169,170],"class_list":["post-3756","post","type-post","status-publish","format-standard","hentry","category-go","category-golang","tag-go","tag-golang"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-YA","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3756","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/comments?post=3756"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3756\/revisions"}],"predecessor-version":[{"id":3757,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3756\/revisions\/3757"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=3756"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=3756"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=3756"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}