{"height":"190","blog_url":"https://monmon.hateblo.jp/","type":"rich","description":"node \u3067\u30e1\u30fc\u30eb\u306e\u30a2\u30c9\u30ec\u30b9\u306e\u30c9\u30e1\u30a4\u30f3\u30c1\u30a7\u30c3\u30af\u3059\u308b\u306e\u306b dns \u4f7f\u3063\u3066\u308b\u3093\u3067\u3059\u304c\u3001 dns.resolveAny(domain, (err, records) => { if (err) { // 1. \u30c9\u30e1\u30a4\u30f3\u304c\u5b58\u5728\u3057\u306a\u3044\u306e\u3067\u30a8\u30e9\u30fc return; } const mailRecords = records.filter((record) => { return record.type === 'MX' || record.type === 'A' || record.type === 'AAAA' }); if (mailRecords.length === 0) { // 2. \u30c9\u30e1\u30a4\u30f3\u2026","provider_name":"Hatena Blog","width":"100%","published":"2019-02-14 22:54:47","categories":["dns","node"],"author_url":"https://blog.hatena.ne.jp/lesamoureuses/","url":"https://monmon.hateblo.jp/entry/2019/02/14/225447","title":"\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u30c9\u30e1\u30a4\u30f3\u30c1\u30a7\u30c3\u30af\u3067\u554f\u984c\u306a\u3044\u3084\u3064\u304c\u30a8\u30e9\u30fc\u306b\u306a\u308b","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmonmon.hateblo.jp%2Fentry%2F2019%2F02%2F14%2F225447\" title=\"\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u30c9\u30e1\u30a4\u30f3\u30c1\u30a7\u30c3\u30af\u3067\u554f\u984c\u306a\u3044\u3084\u3064\u304c\u30a8\u30e9\u30fc\u306b\u306a\u308b - \u3053\u3093\u306b\u3061\u306f\u3053\u3093\u306b\u3061\u306fmonmon\u3067\u3059\uff01\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_title":"\u3053\u3093\u306b\u3061\u306f\u3053\u3093\u306b\u3061\u306fmonmon\u3067\u3059\uff01","provider_url":"https://hatena.blog","author_name":"lesamoureuses","version":"1.0","image_url":null}