{"width":"100%","title":" DNS \u306e\u30e9\u30d9\u30eb\u3068\u540d\u524d\u306e\u9577\u3055","image_url":null,"height":"190","blog_title":"TenForward","url":"https://tenforward.hatenablog.com/entry/20091106/1257476381","published":"2009-11-06 11:59:41","type":"rich","description":"\u30db\u30b9\u30c8\u540d\u306a\u3093\u304b\u306e\u9577\u3055\u306a\u3093\u3066\u6c17\u306b\u3057\u305f\u3053\u3068\u306a\u304b\u3063\u305f\u3051\u3069 (\u3053\u3089\u301c)\uff0c labels 63 octets or lessnames 255 octets or less RFC1035 \u306a\u3093\u3066\u5b9a\u7fa9\u304c\u3042\u308b\uff0e\u30e1\u30fc\u30eb\u95a2\u4fc2\u306e\u30d7\u30ed\u30b0\u30e9\u30e0 (\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u306a\u3093\u304b) \u3067\uff0c\u3053\u306e\u9577\u3055\u3092\u6271\u3048\u306a\u3044\u30e2\u30ce\u304c\u3042\u308b\u307f\u305f\u3044\uff0e\u3067\uff0cpostfix \u3092\u307f\u3066\u307f\u305f\u3089\uff0csrc/util/valid_hostname.h \u306b #define VALID_HOSTNAME_LEN 255 /* RFC 1035 */ #define VALID_LABEL_LEN 63 /* RFC 1035 */ \u306a\u3093\u3066\u5b9a\u7fa9\u304c\u3042\u3063\u3066\uff0cvalid_hostname\u2026","provider_url":"https://hatena.blog","author_url":"https://blog.hatena.ne.jp/defiant/","categories":["Network"],"provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftenforward.hatenablog.com%2Fentry%2F20091106%2F1257476381\" title=\" DNS \u306e\u30e9\u30d9\u30eb\u3068\u540d\u524d\u306e\u9577\u3055 - TenForward\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_name":"defiant","blog_url":"https://tenforward.hatenablog.com/","version":"1.0"}