{"id":136,"date":"2025-05-11T08:28:00","date_gmt":"2025-05-10T23:28:00","guid":{"rendered":"https:\/\/ccna-curriculum.tech-village.co.jp\/?p=136"},"modified":"2025-10-13T17:07:40","modified_gmt":"2025-10-13T08:07:40","slug":"16-http","status":"publish","type":"post","link":"https:\/\/ccna-curriculum.tech-village.co.jp\/?p=136","title":{"rendered":"HTTP"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">HTTP\u3068\u306f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><span class=\"swl-marker mark_yellow\">HTTP\uff08HyperText Transfer Protocol\uff09<\/span><\/strong>\u306f\u3001Web\u30b5\u30fc\u30d0\u3068Web\u30d6\u30e9\u30a6\u30b6\u306e\u9593\u3067\u30c7\u30fc\u30bf\u3092\u3084\u308a\u53d6\u308a\u3059\u308b\u305f\u3081\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002Web\u30da\u30fc\u30b8\u3092\u8a18\u8ff0\u3059\u308bHTML\u30d5\u30a1\u30a4\u30eb\u3084\u3001\u753b\u50cf\u30fb\u97f3\u58f0\u30fb\u52d5\u753b\u3068\u3044\u3063\u305f\u30c7\u30fc\u30bf\u3092\u9001\u53d7\u4fe1\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">URL\u306e\u69cb\u9020<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">URL\uff08Uniform Resource Locator\uff09\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306e\u8cc7\u6e90\u306e\u5834\u6240\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u69cb\u6210\u8981\u7d20<\/th><th>\u8aac\u660e<\/th><\/tr><\/thead><tbody><tr><td>\u30b9\u30ad\u30fc\u30e0<\/td><td>\u5229\u7528\u3059\u308b\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u793a\u3059\u3002http\uff0880\u756a\u30dd\u30fc\u30c8\uff09\u3001https\uff08443\u756a\u30dd\u30fc\u30c8\uff09\u306a\u3069\u3002<\/td><\/tr><tr><td>\u30db\u30b9\u30c8\u540d<\/td><td>\u30a2\u30af\u30bb\u30b9\u5148\u306e\u30db\u30b9\u30c8\u540d\uff08\u4f8b\uff1awww.infraexpert.com\uff09\u3002\u7701\u7565\u6642\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u30dd\u30fc\u30c8\u756a\u53f7\u304c\u4f7f\u308f\u308c\u308b\u3002<\/td><\/tr><tr><td>\u30d1\u30b9<\/td><td>\u30d5\u30a1\u30a4\u30eb\u540d\u3084\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3002\u7701\u7565\u3057\u305f\u5834\u5408\u306f\u300cindex.html\u300d\u304c\u547c\u3073\u51fa\u3055\u308c\u308b\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">HTTP\u306e\u30d1\u30b1\u30c3\u30c8<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">HTTP\u306fTCP\u306e\u4e0a\u3067\u52d5\u4f5c\u3057\u307e\u3059\u3002\u5229\u7528\u3055\u308c\u308b\u4ee3\u8868\u7684\u306a\u30dd\u30fc\u30c8\u756a\u53f7\u306f80\uff08http\uff09\u3001443\uff08https\uff09\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Web\u30a2\u30af\u30bb\u30b9\u306e\u4ed5\u7d44\u307f<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30e6\u30fc\u30b6\u30fc\u304c\u30d6\u30e9\u30a6\u30b6\u306bURL\u3092\u5165\u529b<\/li>\n\n\n\n<li>\u30d6\u30e9\u30a6\u30b6\u304cHTTP\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u4fe1<\/li>\n\n\n\n<li>\u30b5\u30fc\u30d0\u304c\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u89e3\u6790<\/li>\n\n\n\n<li>\u30b5\u30fc\u30d0\u304cHTTP\u30ec\u30b9\u30dd\u30f3\u30b9\u3067\u30c7\u30fc\u30bf\u3092\u8fd4\u9001<\/li>\n\n\n\n<li>\u30d6\u30e9\u30a6\u30b6\u304cWeb\u30da\u30fc\u30b8\u3092\u8868\u793a<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">HTTP\u306e\u30d0\u30fc\u30b8\u30e7\u30f3<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">HTTP\/1.1\u3001HTTP\/2\u3001HTTP\/3\u304c\u4e3b\u306b\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u30d0\u30fc\u30b8\u30e7\u30f3<\/th><th>\u6d3e\u751f\u5143<\/th><th>RFC<\/th><th>\u5c0e\u5165\u5e74<\/th><th>\u7279\u5fb4<\/th><\/tr><\/thead><tbody><tr><td>HTTP\/1.1<\/td><td>&#8211;<\/td><td>RFC 9112<\/td><td>1997\u5e74<\/td><td>\u30ea\u30af\u30a8\u30b9\u30c8\u3054\u3068\u306bTCP\u63a5\u7d9a\u3092\u5207\u65ad<\/td><\/tr><tr><td>HTTP\/2<\/td><td>SPDY<\/td><td>RFC 9113<\/td><td>2015\u5e74<\/td><td>1\u3064\u306eTCP\u63a5\u7d9a\u3067\u8907\u6570\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u540c\u6642\u51e6\u7406<\/td><\/tr><tr><td>HTTP\/3<\/td><td>QUIC<\/td><td>RFC 9114<\/td><td>2022\u5e74<\/td><td>UDP\u30d9\u30fc\u30b9\u3001\u3088\u308a\u9ad8\u901f\u3067\u5b89\u5b9a\u3057\u305f\u901a\u4fe1<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">HTTP\u30ea\u30af\u30a8\u30b9\u30c8\u30e1\u30c3\u30bb\u30fc\u30b8<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u69cb\u6210\u8981\u7d20<\/th><th>\u8aac\u660e<\/th><\/tr><\/thead><tbody><tr><td>\u30ea\u30af\u30a8\u30b9\u30c8\u884c<\/td><td>\u30e1\u30bd\u30c3\u30c9\uff08GET\u3001POST\u306a\u3069\uff09\u3001URI\u3001HTTP\u30d0\u30fc\u30b8\u30e7\u30f3<\/td><\/tr><tr><td>\u30e1\u30c3\u30bb\u30fc\u30b8\u30d8\u30c3\u30c0<\/td><td>\u30d6\u30e9\u30a6\u30b6\u306e\u60c5\u5831\u3084\u5bfe\u5fdc\u53ef\u80fd\u306a\u30c7\u30fc\u30bf\u5f62\u5f0f\u3092\u901a\u77e5<\/td><\/tr><tr><td>\u7a7a\u767d\u884c<\/td><td>\u30d8\u30c3\u30c0\u7d42\u4e86\u3092\u793a\u3059<\/td><\/tr><tr><td>\u30e1\u30c3\u30bb\u30fc\u30b8\u30dc\u30c7\u30a3<\/td><td>\u5165\u529b\u30d5\u30a9\u30fc\u30e0\u306e\u5185\u5bb9\u306a\u3069\u9001\u4fe1\u30c7\u30fc\u30bf<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u4ee3\u8868\u7684\u306a\u30e1\u30bd\u30c3\u30c9<\/th><th>\u8aac\u660e<\/th><\/tr><\/thead><tbody><tr><td>GET<\/td><td>\u30c7\u30fc\u30bf\u3092\u53d6\u5f97<\/td><\/tr><tr><td>HEAD<\/td><td>\u30d8\u30c3\u30c0\u60c5\u5831\u306e\u307f\u53d6\u5f97<\/td><\/tr><tr><td>POST<\/td><td>\u30c7\u30fc\u30bf\u3092\u9001\u4fe1<\/td><\/tr><tr><td>PUT<\/td><td>\u30d5\u30a1\u30a4\u30eb\u3092\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9<\/td><\/tr><tr><td>DELETE<\/td><td>\u30c7\u30fc\u30bf\u3092\u524a\u9664<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">HTTP\u30ec\u30b9\u30dd\u30f3\u30b9\u30e1\u30c3\u30bb\u30fc\u30b8<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u69cb\u6210\u8981\u7d20<\/th><th>\u8aac\u660e<\/th><\/tr><\/thead><tbody><tr><td>\u30b9\u30c6\u30fc\u30bf\u30b9\u884c<\/td><td>HTTP\u30d0\u30fc\u30b8\u30e7\u30f3\u3001\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\uff08200 OK\u306a\u3069\uff09<\/td><\/tr><tr><td>\u30e1\u30c3\u30bb\u30fc\u30b8\u30d8\u30c3\u30c0<\/td><td>\u30b5\u30fc\u30d0\u306e\u60c5\u5831\u3084\u8fd4\u5374\u30c7\u30fc\u30bf\u306e\u5f62\u5f0f<\/td><\/tr><tr><td>\u7a7a\u767d\u884c<\/td><td>\u30d8\u30c3\u30c0\u7d42\u4e86\u3092\u793a\u3059<\/td><\/tr><tr><td>\u30e1\u30c3\u30bb\u30fc\u30b8\u30dc\u30c7\u30a3<\/td><td>HTML\u6587\u66f8\u3084\u753b\u50cf\u306a\u3069\u5b9f\u969b\u306e\u30c7\u30fc\u30bf<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u306e\u5206\u985e<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u756a\u53f7\u5e2f<\/th><th>\u5185\u5bb9<\/th><th>\u4f8b<\/th><\/tr><\/thead><tbody><tr><td>100\u756a\u53f0<\/td><td>\u60c5\u5831<\/td><td>100 Continue<\/td><\/tr><tr><td>200\u756a\u53f0<\/td><td>\u6210\u529f<\/td><td>200 OK<\/td><\/tr><tr><td>300\u756a\u53f0<\/td><td>\u30ea\u30c0\u30a4\u30ec\u30af\u30c8<\/td><td>301 Moved Permanently<\/td><\/tr><tr><td>400\u756a\u53f0<\/td><td>\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30a8\u30e9\u30fc<\/td><td>404 Not Found<\/td><\/tr><tr><td>500\u756a\u53f0<\/td><td>\u30b5\u30fc\u30d0\u30a8\u30e9\u30fc<\/td><td>503 Service Unavailable<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u8a73\u7d30\u306a\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u4f8b<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>200 OK\uff1a\u30ea\u30af\u30a8\u30b9\u30c8\u6210\u529f<\/li>\n\n\n\n<li>301 Moved Permanently\uff1a\u6052\u4e45\u7684\u306a\u79fb\u52d5<\/li>\n\n\n\n<li>404 Not Found\uff1a\u6307\u5b9a\u3057\u305f\u30da\u30fc\u30b8\u304c\u5b58\u5728\u3057\u306a\u3044<\/li>\n\n\n\n<li>500 Internal Server Error\uff1a\u30b5\u30fc\u30d0\u5074\u306e\u30a8\u30e9\u30fc<\/li>\n\n\n\n<li>503 Service Unavailable\uff1a\u30b5\u30fc\u30d0\u904e\u8ca0\u8377\u306a\u3069\u3067\u5229\u7528\u4e0d\u53ef<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">HTTP\/2\u3068\u306f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><span class=\"swl-marker mark_yellow\">HTTP\/2\uff08Hypertext Transfer Protocol version 2\uff09<\/span><\/strong>\u306f\u3001Web\u30b5\u30fc\u30d0\u3068Web\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u9593\u3067\u30c7\u30fc\u30bf\u3092\u3084\u308a\u53d6\u308a\u3059\u308b\u305f\u3081\u306e\u901a\u4fe1\u898f\u683c\u3067\u30012015\u5e74\u306b\u6a19\u6e96\u5316\u3055\u308c\u307e\u3057\u305f\u3002\u5f93\u6765\u306eHTTP\/1.1\u3068\u6bd4\u3079\u3066\u9ad8\u901f\u304b\u3064\u52b9\u7387\u7684\u306b\u901a\u4fe1\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u305f\u3081\u3001\u73fe\u5728\u306f\u5e83\u304f\u666e\u53ca\u3057\u3066\u3044\u307e\u3059\u3002HTTP\/2\u306e\u80cc\u666f\u306b\u306f\u3001Google\u304c\u958b\u767a\u3057\u305f\u300cSPDY\u300d\u3068\u3044\u3046\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u5b9f\u7e3e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">HTTP\u306e\u30d0\u30fc\u30b8\u30e7\u30f3<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u30d0\u30fc\u30b8\u30e7\u30f3<\/th><th>\u6d3e\u751f\u5143<\/th><th>RFC<\/th><th>\u5c0e\u5165\u5e74<\/th><th>\u7279\u5fb4<\/th><\/tr><\/thead><tbody><tr><td>HTTP\/1.1<\/td><td>&#8211;<\/td><td>RFC 9112<\/td><td>1997\u5e74<\/td><td>\u6700\u521d\u306e\u666e\u53ca\u7248\u3002\u30ea\u30af\u30a8\u30b9\u30c8\u3054\u3068\u306bTCP\u63a5\u7d9a\u3092\u5207\u65ad<\/td><\/tr><tr><td>HTTP\/2<\/td><td>SPDY<\/td><td>RFC 9113<\/td><td>2015\u5e74<\/td><td>\u591a\u91cd\u5316\u306b\u3088\u308b\u52b9\u7387\u5316\u3002\u9ad8\u901f\u5316<\/td><\/tr><tr><td>HTTP\/3<\/td><td>QUIC<\/td><td>RFC 9114<\/td><td>2022\u5e74<\/td><td>UDP\u30d9\u30fc\u30b9\u3002\u3055\u3089\u306b\u9ad8\u901f\u3067\u5b89\u5b9a\u3057\u305f\u901a\u4fe1<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">HTTP\/2\u306e\u7279\u5fb4\u3068\u4ed5\u7d44\u307f<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u30b9\u30c8\u30ea\u30fc\u30e0<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">1\u3064\u306eTCP\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u4e0a\u3067\u8907\u6570\u306eHTTP\u30ea\u30af\u30a8\u30b9\u30c8\u3068\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u540c\u6642\u306b\u3084\u308a\u3068\u308a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5404\u30ea\u30af\u30a8\u30b9\u30c8\u3068\u30ec\u30b9\u30dd\u30f3\u30b9\u306e\u7d44\u306f\u300c\u30b9\u30c8\u30ea\u30fc\u30e0\u300d\u306b\u5c5e\u3059\u308b<\/li>\n\n\n\n<li>\u30b9\u30c8\u30ea\u30fc\u30e0\u306b\u306f\u300c\u30b9\u30c8\u30ea\u30fc\u30e0ID\u300d\u304c\u5272\u308a\u5f53\u3066\u3089\u308c\u308b<\/li>\n\n\n\n<li>\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u958b\u59cb\u306e\u30b9\u30c8\u30ea\u30fc\u30e0ID\u306f\u5947\u6570\u3001\u30b5\u30fc\u30d0\u958b\u59cb\u306f\u5076\u6570<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u30d5\u30ec\u30fc\u30e0<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">HTTP\/2\u3067\u306f\u3001\u30c6\u30ad\u30b9\u30c8\u3067\u306f\u306a\u304f\u30d0\u30a4\u30ca\u30ea\u5f62\u5f0f\u306e\u300c\u30d5\u30ec\u30fc\u30e0\u300d\u3067\u901a\u4fe1\u3057\u307e\u3059\u3002<br>\u4e3b\u306a\u30d5\u30ec\u30fc\u30e0\u30bf\u30a4\u30d7\u306f\u6b21\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u30bf\u30a4\u30d7<\/th><th>\u30d5\u30ec\u30fc\u30e0\u540d<\/th><th>\u5f79\u5272<\/th><\/tr><\/thead><tbody><tr><td>0<\/td><td>DATA<\/td><td>\u672c\u4f53\u30c7\u30fc\u30bf\u3092\u9001\u4fe1<\/td><\/tr><tr><td>1<\/td><td>HEADERS<\/td><td>\u30ea\u30af\u30a8\u30b9\u30c8\u30fb\u30ec\u30b9\u30dd\u30f3\u30b9\u306e\u30d8\u30c3\u30c0\u3092\u9001\u4fe1<\/td><\/tr><tr><td>2<\/td><td>PRIORITY<\/td><td>\u30b9\u30c8\u30ea\u30fc\u30e0\u306e\u512a\u5148\u5ea6\u3092\u6307\u5b9a<\/td><\/tr><tr><td>3<\/td><td>RST_STREAM<\/td><td>\u30b9\u30c8\u30ea\u30fc\u30e0\u306e\u5f37\u5236\u7d42\u4e86<\/td><\/tr><tr><td>4<\/td><td>SETTINGS<\/td><td>\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u306e\u8a2d\u5b9a\u5909\u66f4<\/td><\/tr><tr><td>5<\/td><td>PUSH_PROMISE<\/td><td>\u30b5\u30fc\u30d0\u30d7\u30c3\u30b7\u30e5\u306e\u6e96\u5099\uff08\u30b5\u30fc\u30d0\u306e\u307f\uff09<\/td><\/tr><tr><td>6<\/td><td>PING<\/td><td>\u63a5\u7d9a\u78ba\u8a8d<\/td><\/tr><tr><td>7<\/td><td>GOAWAY<\/td><td>\u5207\u65ad\u51e6\u7406\u958b\u59cb<\/td><\/tr><tr><td>8<\/td><td>WINDOW_UPDATE<\/td><td>\u30d5\u30ed\u30fc\u5236\u5fa1\u306e\u305f\u3081\u306e\u30a6\u30a3\u30f3\u30c9\u30a6\u66f4\u65b0<\/td><\/tr><tr><td>9<\/td><td>CONTINUATION<\/td><td>\u30d8\u30c3\u30c0\u9001\u4fe1\u306e\u7d99\u7d9a<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u30cd\u30b4\u30b7\u30a8\u30fc\u30b7\u30e7\u30f3\uff08\u901a\u4fe1\u958b\u59cb\uff09<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>http\u901a\u4fe1\u3067\u306f\u300cUpgrade\u30d8\u30c3\u30c0\u300d\u3092\u4f7f\u3063\u3066HTTP\/1.1\u304b\u3089HTTP\/2\u3078\u5207\u308a\u66ff\u3048\u308b<\/li>\n\n\n\n<li>https\u901a\u4fe1\u3067\u306f\u300cTLS\u306eALPN\u62e1\u5f35\u300d\u3092\u4f7f\u3063\u3066\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u4ea4\u6e09\u3059\u308b<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u30b5\u30fc\u30d0\u30d7\u30c3\u30b7\u30e5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u30ea\u30af\u30a8\u30b9\u30c8\u3057\u3066\u3044\u306a\u304f\u3066\u3082\u3001\u95a2\u9023\u3059\u308b\u30c7\u30fc\u30bf\u3092\u30b5\u30fc\u30d0\u5074\u304b\u3089\u5148\u306b\u9001\u4fe1\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u30da\u30fc\u30b8\u8868\u793a\u306e\u5f85\u3061\u6642\u9593\u304c\u77ed\u7e2e\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u512a\u5148\u5ea6\u5236\u5fa1<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30b9\u30c8\u30ea\u30fc\u30e0\u3054\u3068\u306b\u512a\u5148\u5ea6\u3092\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001CSS\u3084JavaScript\u306a\u3069\u30da\u30fc\u30b8\u8868\u793a\u306b\u5fc5\u8981\u306a\u30c7\u30fc\u30bf\u3092\u5148\u306b\u9001\u4fe1\u3057\u3001\u753b\u50cf\u306f\u5f8c\u56de\u3057\u306b\u3059\u308b\u3068\u3044\u3063\u305f\u5236\u5fa1\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30d8\u30c3\u30c0\u5727\u7e2e<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">HTTP\/2\u3067\u306f\u300cHPACK\u300d\u3068\u3044\u3046\u4ed5\u7d44\u307f\u3067\u30d8\u30c3\u30c0\u3092\u5727\u7e2e\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u540c\u3058\u5185\u5bb9\u306e\u30d8\u30c3\u30c0\u3092\u4f55\u5ea6\u3082\u9001\u4fe1\u3059\u308b\u5fc5\u8981\u304c\u306a\u304f\u306a\u308a\u3001\u901a\u4fe1\u91cf\u304c\u524a\u6e1b\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">TLS\u5229\u7528\u6642\u306e\u30eb\u30fc\u30eb<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">HTTP\/2\u3092TLS\u3067\u5229\u7528\u3059\u308b\u5834\u5408\u306b\u306f\u6b21\u306e\u3088\u3046\u306a\u5236\u7d04\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>TLS 1.2\u4ee5\u4e0a\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068<\/li>\n\n\n\n<li>ALPN\u3067\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u9078\u629e\u3059\u308b\u3053\u3068<\/li>\n\n\n\n<li>SNI\u62e1\u5f35\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u3053\u3068<\/li>\n\n\n\n<li>TLS\u5727\u7e2e\u3068\u518d\u30cd\u30b4\u30b7\u30a8\u30fc\u30b7\u30e7\u30f3\u306f\u7121\u52b9\u5316\u3059\u308b\u3053\u3068<\/li>\n\n\n\n<li>\u9375\u9577\u306fDHE\u30672048bit\u4ee5\u4e0a\u3001ECDHE\u3067224bit\u4ee5\u4e0a\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u3053\u3068<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u521d\u5fc3\u8005\u5411\u3051\u306e\u30a4\u30e1\u30fc\u30b8\u3068\u3057\u3066\u306f\u3001HTTP\/1.1\u304c\u300c1\u672c\u306e\u30ec\u30fc\u30f3\u30671\u53f0\u305a\u3064\u8eca\u3092\u901a\u3059\u9053\u8def\u300d\u3060\u3063\u305f\u306e\u306b\u5bfe\u3057\u3001HTTP\/2\u306f\u300c\u8907\u6570\u8eca\u7dda\u306e\u9ad8\u901f\u9053\u8def\u300d\u3067\u3042\u308a\u3001\u4e00\u5ea6\u306b\u591a\u304f\u306e\u8eca\uff08\u30ea\u30af\u30a8\u30b9\u30c8\u3068\u30ec\u30b9\u30dd\u30f3\u30b9\uff09\u304c\u4e26\u884c\u3057\u3066\u8d70\u308c\u308b\u4ed5\u7d44\u307f\u3060\u3068\u8003\u3048\u308b\u3068\u7406\u89e3\u3057\u3084\u3059\u3044\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">HTTP\/3\u3068\u306f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><span class=\"swl-marker mark_yellow\">HTTP\/3\uff08Hypertext Transfer Protocol version 3\uff09<\/span><\/strong>\u306f\u3001Web\u30b5\u30fc\u30d0\u3068Web\u30d6\u30e9\u30a6\u30b6\u306e\u9593\u3067\u30c7\u30fc\u30bf\u3092\u3084\u308a\u53d6\u308a\u3059\u308b\u305f\u3081\u306e\u6700\u65b0\u306e\u901a\u4fe1\u898f\u683c\u3067\u3059\u3002HTTP\/1.1\u3067\u306f\u30c6\u30ad\u30b9\u30c8\u5f62\u5f0f\u3001HTTP\/2\u3067\u306f\u30d0\u30a4\u30ca\u30ea\u5f62\u5f0f\u3067\u901a\u4fe1\u3057\u3066\u304d\u307e\u3057\u305f\u304c\u3001HTTP\/3\u3082\u30d0\u30a4\u30ca\u30ea\u5f62\u5f0f\u3092\u63a1\u7528\u3057\u3066\u3044\u307e\u3059\u3002HTTP\/3\u306fGoogle\u304c\u958b\u767a\u3057\u305fQUIC\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u30d9\u30fc\u30b9\u3068\u3057\u3066\u304a\u308a\u30012022\u5e74\u306b\u6a19\u6e96\u5316\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">HTTP\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u6bd4\u8f03<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u30d0\u30fc\u30b8\u30e7\u30f3<\/th><th>\u6d3e\u751f\u5143<\/th><th>RFC<\/th><th>\u5c0e\u5165\u5e74<\/th><th>\u7279\u5fb4<\/th><\/tr><\/thead><tbody><tr><td>HTTP\/1.1<\/td><td>&#8211;<\/td><td>RFC 9112<\/td><td>1997\u5e74<\/td><td>TCP\u30d9\u30fc\u30b9\u3002\u6700\u521d\u306b\u666e\u53ca\u3057\u305f\u30d0\u30fc\u30b8\u30e7\u30f3<\/td><\/tr><tr><td>HTTP\/2<\/td><td>SPDY<\/td><td>RFC 9113<\/td><td>2015\u5e74<\/td><td>TCP\u30d9\u30fc\u30b9\u3002\u591a\u91cd\u5316\u3068\u52b9\u7387\u5316<\/td><\/tr><tr><td>HTTP\/3<\/td><td>QUIC<\/td><td>RFC 9114<\/td><td>2022\u5e74<\/td><td>UDP\u30d9\u30fc\u30b9\u3002\u3055\u3089\u306b\u9ad8\u901f\u3067\u5b89\u5b9a\u3057\u305f\u901a\u4fe1<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">HTTP\/3\u306e\u57fa\u672c\u4ed5\u7d44\u307f<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">UDP\u3068QUIC<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">HTTP\/3\u306fTCP\u3067\u306f\u306a\u304fUDP\u3092\u5229\u7528\u3057\u307e\u3059\u3002TCP\u306e\u4ee3\u308f\u308a\u306bQUIC\u304c\u4fe1\u983c\u6027\uff08\u518d\u9001\u5236\u5fa1\u30fb\u8f3b\u8f33\u5236\u5fa1\uff09\u3092\u62c5\u3044\u3001TLS1.3\u304c\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u62c5\u4fdd\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308aTLS\u6697\u53f7\u5316\u901a\u4fe1\u304c\u5fc5\u9808\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d0\u30fc\u30b8\u30e7\u30f3 | \u4f7f\u7528\u30dd\u30fc\u30c8\u756a\u53f7 | TLS\u306e\u5b9f\u88c5 | TLS\u30d0\u30fc\u30b8\u30e7\u30f3<br>HTTP\/1.1 | TCP 80 \/ 443 | \u4efb\u610f | \u4efb\u610f<br>HTTP\/2 | TCP 80 \/ 443 | \u4efb\u610f | TLS1.2 \/ 1.3<br>HTTP\/3 | UDP 443 | \u5fc5\u9808 | TLS1.3<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u63a5\u7d9a\u958b\u59cb\u306e\u9ad8\u901f\u5316<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">HTTP\/2\u3067\u306fTCP\u306e3\u30a6\u30a7\u30a4\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u306b\u52a0\u3048\u3001TLS\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u304c\u5fc5\u8981\u3067\u3057\u305f\u3002HTTP\/3\u3067\u306fQUIC\u306b\u3088\u308aTCP\u306e\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u3092\u7701\u7565\u3057\u3001TLS1.3\u306e\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u304b\u3089\u901a\u4fe1\u3092\u59cb\u3081\u3089\u308c\u307e\u3059\u3002\u3055\u3089\u306b\u30010-RTT\u518d\u958b\u6a5f\u80fd\u306b\u3088\u308a\u3001\u4e00\u5ea6\u901a\u4fe1\u3057\u305f\u76f8\u624b\u3068\u306f\u6b21\u56de\u4ee5\u964d\u3059\u3050\u306b\u30c7\u30fc\u30bf\u9001\u4fe1\u3092\u958b\u59cb\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">HOL\u30d6\u30ed\u30c3\u30ad\u30f3\u30b0\u306e\u89e3\u6d88<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">TCP\u3067\u306f\u5148\u982d\u30d1\u30b1\u30c3\u30c8\u306b\u30a8\u30e9\u30fc\u304c\u3042\u308b\u3068\u5f8c\u7d9a\u30d1\u30b1\u30c3\u30c8\u3082\u5f85\u305f\u3055\u308c\u308bHOL\u30d6\u30ed\u30c3\u30ad\u30f3\u30b0\u304c\u767a\u751f\u3057\u307e\u3059\u3002HTTP\/3\u3067\u306fQUIC\u306b\u3088\u308a\u3001\u3042\u308b\u30d1\u30b1\u30c3\u30c8\u304c\u9045\u5ef6\u3057\u3066\u3082\u4ed6\u306e\u30d1\u30b1\u30c3\u30c8\u3092\u540c\u6642\u4e26\u884c\u3067\u51e6\u7406\u3067\u304d\u308b\u305f\u3081\u3001\u9045\u5ef6\u306e\u5f71\u97ff\u3092\u6700\u5c0f\u5316\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">TCP\u3067\u306f\u901a\u4fe1\u4e2d\u306bIP\u30a2\u30c9\u30ec\u30b9\u3084\u30dd\u30fc\u30c8\u756a\u53f7\u304c\u5909\u308f\u308b\u3068\u63a5\u7d9a\u3092\u7dad\u6301\u3067\u304d\u307e\u305b\u3093\u3002\u3057\u304b\u3057HTTP\/3\u3067\u306f\u3001\u63a5\u7d9a\u3092\u300c\u30b3\u30cd\u30af\u30b7\u30e7\u30f3ID\u300d\u3067\u8b58\u5225\u3059\u308b\u305f\u3081\u3001Wi-Fi\u304b\u30894G\/5G\u306b\u5207\u308a\u66ff\u308f\u3063\u3066\u3082\u901a\u4fe1\u3092\u9014\u5207\u308c\u3055\u305b\u305a\u306b\u7d99\u7d9a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30b5\u30fc\u30d0\u30d7\u30c3\u30b7\u30e5\uff08HTTP\/3\u7248\uff09<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">HTTP\/3\u3067\u3082\u30b5\u30fc\u30d0\u30d7\u30c3\u30b7\u30e5\u306f\u5b9f\u88c5\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001HTTP\/2\u3068\u306f\u4ed5\u69d8\u304c\u5c11\u3057\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b5\u30fc\u30d0\u306fPUSH_PROMISE\u30d5\u30ec\u30fc\u30e0\u3067\u30d7\u30c3\u30b7\u30e5\u7528\u30b9\u30c8\u30ea\u30fc\u30e0\u3092\u4e88\u7d04<\/li>\n\n\n\n<li>Push ID\u3092\u4f7f\u3063\u3066\u30ea\u30bd\u30fc\u30b9\u3092\u8b58\u5225<\/li>\n\n\n\n<li>\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306fMAX_PUSH_ID\u30d5\u30ec\u30fc\u30e0\u3067\u30d7\u30c3\u30b7\u30e5\u6570\u3092\u5236\u5fa1\u53ef\u80fd<\/li>\n\n\n\n<li>\u4e0d\u8981\u306a\u30d7\u30c3\u30b7\u30e5\u306fCANCEL_PUSH\u30d5\u30ec\u30fc\u30e0\u3067\u62d2\u5426\u3067\u304d\u308b<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u30b9\u30c8\u30ea\u30fc\u30e0<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">HTTP\/3\u3067\u306fQUIC\u4e0a\u3067\u300c\u30b9\u30c8\u30ea\u30fc\u30e0\u300d\u304c\u4f7f\u308f\u308c\u3001\u5358\u65b9\u5411\u30b9\u30c8\u30ea\u30fc\u30e0\u3068\u53cc\u65b9\u5411\u30b9\u30c8\u30ea\u30fc\u30e0\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u7a2e\u985e<\/th><th>\u7528\u9014<\/th><\/tr><\/thead><tbody><tr><td>\u5358\u65b9\u5411\u30b9\u30c8\u30ea\u30fc\u30e0\uff08Control, Push\uff09<\/td><td>\u5236\u5fa1\u60c5\u5831\u9001\u4fe1\u3001\u30b5\u30fc\u30d0\u30d7\u30c3\u30b7\u30e5<\/td><\/tr><tr><td>\u53cc\u65b9\u5411\u30b9\u30c8\u30ea\u30fc\u30e0\uff08Request\uff09<\/td><td>HTTP\u30ea\u30af\u30a8\u30b9\u30c8\u3068\u30ec\u30b9\u30dd\u30f3\u30b9\u306e\u3084\u308a\u53d6\u308a<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u30d5\u30ec\u30fc\u30e0\u30bf\u30a4\u30d7<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">HTTP\/3\u3067\u306f\u6b21\u306e\u30d5\u30ec\u30fc\u30e0\u304c\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u30bf\u30a4\u30d7\u5024<\/th><th>\u30d5\u30ec\u30fc\u30e0\u540d<\/th><th>\u5f79\u5272<\/th><\/tr><\/thead><tbody><tr><td>0x0<\/td><td>DATA<\/td><td>\u30ea\u30af\u30a8\u30b9\u30c8\u3084\u30ec\u30b9\u30dd\u30f3\u30b9\u306e\u30c7\u30fc\u30bf\u672c\u4f53<\/td><\/tr><tr><td>0x1<\/td><td>HEADERS<\/td><td>\u30d8\u30c3\u30c0\u60c5\u5831<\/td><\/tr><tr><td>0x3<\/td><td>CANCEL_PUSH<\/td><td>\u30b5\u30fc\u30d0\u30d7\u30c3\u30b7\u30e5\u306e\u30ad\u30e3\u30f3\u30bb\u30eb<\/td><\/tr><tr><td>0x4<\/td><td>SETTINGS<\/td><td>\u901a\u4fe1\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u9001\u4fe1<\/td><\/tr><tr><td>0x5<\/td><td>PUSH_PROMISE<\/td><td>\u30b5\u30fc\u30d0\u30d7\u30c3\u30b7\u30e5\u7528\u306e\u4e88\u7d04<\/td><\/tr><tr><td>0x7<\/td><td>GOAWAY<\/td><td>\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u5207\u65ad\u958b\u59cb<\/td><\/tr><tr><td>0xd<\/td><td>MAX_PUSH_ID<\/td><td>\u30b5\u30fc\u30d0\u30d7\u30c3\u30b7\u30e5\u6570\u306e\u4e0a\u9650\u3092\u901a\u77e5<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u521d\u5fc3\u8005\u5411\u3051\u306e\u30a4\u30e1\u30fc\u30b8\u3068\u3057\u3066\u306f\u3001HTTP\/2\u304c\u300c\u8eca\u7dda\u306e\u591a\u3044\u9ad8\u901f\u9053\u8def\u300d\u3060\u3068\u3059\u308b\u3068\u3001HTTP\/3\u306f\u300c\u6e0b\u6ede\u3092\u907f\u3051\u308b\u305f\u3081\u306b\u8907\u6570\u306e\u9053\u3092\u67d4\u8edf\u306b\u4f7f\u3048\u308b\u81ea\u52d5\u904b\u8ee2\u9053\u8def\u300d\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3059\u3002\u5207\u308a\u66ff\u3048\u3084\u9045\u5ef6\u306b\u3082\u5f37\u304f\u3001\u30e2\u30d0\u30a4\u30eb\u74b0\u5883\u3067\u7279\u306b\u52b9\u679c\u3092\u767a\u63ee\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u25c6\u307e\u3068\u3081\u30b9\u30e9\u30a4\u30c9<\/h2>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/ccna-curriculum.tech-village.co.jp\/wp-content\/uploads\/2025\/05\/HTTP.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"HTTP\u306e\u57cb\u3081\u8fbc\u307f\u3002\"><\/object><a id=\"wp-block-file--media-3b227bd4-a2ca-47bd-8329-da2c6db26a9f\" href=\"https:\/\/ccna-curriculum.tech-village.co.jp\/wp-content\/uploads\/2025\/05\/HTTP.pdf\">HTTP<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>HTTP\u3068\u306f HTTP\uff08HyperText Transfer Protocol\uff09\u306f\u3001Web\u30b5\u30fc\u30d0\u3068Web\u30d6\u30e9\u30a6\u30b6\u306e\u9593\u3067\u30c7\u30fc\u30bf\u3092\u3084\u308a\u53d6\u308a\u3059\u308b\u305f\u3081\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002Web\u30da\u30fc\u30b8\u3092\u8a18\u8ff0\u3059\u308bHTML\u30d5\u30a1\u30a4\u30eb\u3084\u3001\u753b\u50cf\u30fb\u97f3\u58f0\u30fb\u52d5\u753b\u3068 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[14],"tags":[],"class_list":["post-136","post","type-post","status-publish","format-standard","hentry","category-ip-service"],"_links":{"self":[{"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/posts\/136","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=136"}],"version-history":[{"count":3,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/posts\/136\/revisions"}],"predecessor-version":[{"id":728,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/posts\/136\/revisions\/728"}],"wp:attachment":[{"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=136"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=136"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=136"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}