{"id":3828,"date":"2013-12-27T02:03:22","date_gmt":"2013-12-26T17:03:22","guid":{"rendered":"http:\/\/www.vincentina.net\/?p=3828"},"modified":"2013-12-27T02:03:22","modified_gmt":"2013-12-26T17:03:22","slug":"udp%e3%82%88%e3%82%8atcp%e3%81%ae%e6%96%b9%e3%81%8c%ef%bc%9f%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.vincentina.net\/?p=3828","title":{"rendered":"UDP\u3088\u308aTCP\u306e\u65b9\u304c\uff1f\uff1f"},"content":{"rendered":"<p>\u6628\u65e5\u306b\u5f15\u304d\u7d9a\u3044\u3066\u30bd\u30b1\u30c3\u30c8\u901a\u4fe1\u306a\u8a71\u3067\u3059\u3002<\/p>\n<p>conntrack-tools\u3092\u5c0e\u5165\u3057\u3066\u30d1\u30b1\u30c3\u30c8\u306e\u6d41\u308c\u3092\u898b\u305f\u308a\u3057\u3066\u308b\u4eca\u65e5\u3053\u306e\u9803\u3067\u3059\u304c\u3001\u6d41\u308c\u3092\u898b\u305f\u3068\u304d\u306b<\/p>\n<pre>conntrack v1.2.1 (conntrack-tools): 19 flow entries have been shown.<\/pre>\n<p>\u3053\u3093\u306a\u611f\u3058\u3067\u8868\u793a\u3055\u308c\u308b\u3093\u3067\u3059\u3051\u3069\u3001flow\u3063\u3066\u306a\u3093\u3084\u3068\u601d\u305f\u306e\u3067\u3061\u3087\u3053\u3063\u3068\u30b0\u30b0\u3063\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n<p>\u6b63\u3057\u3044\u306e\u304b\u3069\u3046\u304b\u5206\u304b\u3089\u306a\u3044\u3051\u3069\u3001\u304a\u305d\u3089\u304fnetwork flow\u306eflow\u306e\u3053\u3068\u3060\u3068\u601d\u3046\u3002<\/p>\n<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u9802\u70b9\u3092\u30ce\u30fc\u30c9\u3001\u679d\u3092\u30a2\u30fc\u30af\u3068\u547c\u3076\u30021\u3064\u306e\u30ce\u30fc\u30c9\u306b\u6d41\u5165\u3059\u308b\u30d5\u30ed\u30fc\u3068\u305d\u306e\u30ce\u30fc\u30c9\u304b\u3089\u6d41\u51fa\u3059\u308b\u30d5\u30ed\u30fc\u306f\u5e38\u306b\u7b49\u3057\u3044\u3002\u306a\u306b\u304b\u306b\u4f8b\u3048\u308b\u3068\u3059\u308b\u3068\u3001\u9053\u8def\u7db2\u306e\u4ea4\u901a\u91cf\u3001\u30d1\u30a4\u30d7\u3092\u6d41\u308c\u308b\u6db2\u4f53\u3001\u96fb\u6c17\u56de\u8def\u3092\u6d41\u308c\u308b\u96fb\u6d41\u3068\u304b\u307f\u305f\u3044\u3067\u3059\u3002\u306a\u3093\u3068\u306a\u304f\u30a4\u30e1\u30fc\u30b8\u306f\u3067\u304d\u305f\u304b\u3082\u3057\u308c\u306a\u3044\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u3093\u3067\u3001\u6575\u3092\u77e5\u308b\u306b\u306f\u307e\u305a\u306f\u5473\u65b9\u304b\u3089\u3068\u3044\u3046\u4e8b\u3067\u3053\u306eflow\u3092\u304a\u30fc\u3070\u30fc\u3069\u3089\u3044\u3076\u30fc\uff01\u3063\u3068\u3044\u3046\u611f\u3058\u3067\u5927\u91cf\u306b\u6d41\u3057\u3066\u307f\u305f\u3044\u3068\u601d\u3063\u305f\u3002\u306e\u3060\u304c\u3001\u3053\u308c\u304c\u306a\u304b\u306a\u304b\u624b\u3054\u308f\u3044\u3002\u7d50\u679c\u3092\u8a00\u3046\u3068\u3053\u306e\u6226\u3044\u306f\u307e\u3060\u7d42\u308f\u3063\u3066\u3044\u306a\u3044\u306e\u3060\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u3068\u308a\u3042\u3048\u305aPython\u306a\u3089\u4f55\u3068\u304b\u306a\u308b\u306e\u3067\u3001Python\u306eDoS\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u62fe\u3063\u3066\u304d\u3066VM\u540c\u58eb\u3067\u6d41\u3057\u3066\u307f\u308b\u3053\u3068\u306b\u3057\u305f\u3002<br \/>\n\u3068\u3044\u3046\u304bC\u304c\u591a\u3044\u3093\u3060\u306a\u3002\u305f\u3060\u30bd\u30b1\u30c3\u30c8\u306a\u3089\u540c\u3058\u3082\u306e\u304c\u4f7f\u3048\u305f\u308a\u3059\u308b\u306e\u3067\u305d\u3053\u305d\u3053\u5f79\u306b\u306f\u305f\u3063\u305f\u3002<br \/>\n\u5b66\u751f\u6642\u4ee3\u306b\u4e2d\u9014\u534a\u7aef\u306b\u3084\u3063\u3066\u305f\u304b\u3089\u304a\u3058\u3055\u3093\u306b\u306a\u3063\u3066\u304b\u3089\u82e6\u52b4\u3059\u308b\u3093\u3060\u3088\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u3061\u3087\u3063\u3068\u8a71\u304c\u9038\u308c\u3066\u3057\u307e\u3063\u305f\u304c\u3001\u30d1\u30b1\u30c3\u30c8\u3092\u30ac\u30f3\u30ac\u30f3\u6d41\u3057\u3066\u3082\u3069\u3046\u3044\u3046\u4e8b\u304b\u6700\u5927\u3067\u30825\u4e07flow\u304f\u3089\u3044\u306b\u3057\u304b\u306a\u3089\u305a\u3002\u30aa\u30d7\u30b7\u30e7\u30f3E\u3067\u76e3\u8996\u3057\u3066\u307f\u308b\u3068destroy\u3068\u3044\u3046\u3053\u3068\u3067\u7834\u68c4\u304b\u4f55\u304b\u306b\u306a\u3063\u3066\u3044\u308b\u307f\u305f\u3044\u3060\u3002\u65b0\u3057\u3044\u63a5\u7d9a\u3082\u8ffd\u3044\u3064\u3044\u3066\u306a\u3044\u307f\u305f\u3044\u3067\u305d\u308c\u3067\u6700\u5927\u3067\u30825\u4e07flow\u3068\u306a\u3002<\/p>\n<p>\u3053\u308c\u304c\u3046\u3061\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u9650\u754c\u304b\u3069\u3046\u304b\u3082\u5206\u304b\u3089\u306a\u3044\u306e\u3067\u3001\u305f\u3081\u3057\u306bVM4\u500b\u306b\u305d\u308c\u305e\u308c\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u914d\u7f6e\u3092\u3057\u3066\u30db\u30b9\u30c8\u306b\u5411\u304b\u3063\u3066\u4e00\u6589\u306b\u6d41\u3057\u3066\u307f\u305f\u304c\u3001\u3053\u308c\u3063\u3066DDoS\u306b\u3042\u305f\u308b\u3068\u601d\u3063\u305f\u3093\u3060\u3051\u3069\u3001\u3053\u308c\u3082\u4f55\u6545\u304b\u5206\u304b\u3089\u306a\u3044\u3051\u3069\u3082\u30015\u4e07flow\u306b\u3057\u304b\u5c4a\u304b\u305a\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u3053\u308c\u306f\u3082\u3046\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u66f8\u304d\u65b9\u306b\u554f\u984c\u3042\u308b\u306e\u304b\u3082\u3057\u308c\u306a\u3044\u306a\u3042\u3068\u601d\u3063\u305f\u306e\u3067\u3001UDP\u306e\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u3092\u98db\u3070\u3059Python\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u62fe\u3063\u3066\u304d\u3066\u3001\u3061\u3087\u3063\u3068\u6539\u5909\u3057\u3066\uff11\uff5e65535\u30dd\u30fc\u30c8\u307e\u3067\u30ac\u30f3\u30ac\u30f3\u6d41\u3059\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u3044\u3058\u3063\u3066\u5b9f\u884c\u3057\u3066\u307f\u305f\u3002<\/p>\n<p>\u3084\u306f\u308a\u8a18\u8ff0\u304c\u554f\u984c\u3060\u3063\u305f\u3088\u3046\u3067\u3001\u4eca\u5ea6\u306f20\u4e07flow\u307e\u3067\u3044\u3063\u305f\u3002<br \/>\n\u3067\u3082\u3001\u3053\u308c\u3082\u6700\u5927\u306720\u4e07\u3002\u3053\u308c\u304c\u9650\u754c\u306a\u306e\u304b\u30fc\uff01<\/p>\n<p>\u3068\u601d\u3063\u305f\u304c\u3001\u30a4\u30e1\u30fc\u30b8\u7684\u306bTCP\u3088\u308aUDP\u306e\u65b9\u304c\u78ba\u8a8d\u3092\u305b\u305a\u306b\u30c9\u30d0\u30c9\u30d0\u6d41\u3059\u304b\u3089\u5927\u91cf\u306bflow\u304c\u6d41\u308c\u308b\u3068\u601d\u3063\u305f\u3093\u3060\u3051\u3069\u3001\u306a\u3093\u3068\u306a\u304fTCP\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u5909\u3048\u3066\u307f\u305f\u7d50\u679c\u306a\u3093\u306850\u4e07flow\u306b\u9054\u3057\u305f\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u3057\u304b\u3057\u3053\u308c\u3082flow\u306e\u6700\u5927\u5024\u306f\u4e0a\u304c\u3063\u305f\u306e\u3060\u3051\u3069\u3001\u3044\u304f\u3089\u6d41\u3057\u3066\u3082\u30d1\u30b1\u30c3\u30c8\u30c9\u30ed\u30c3\u30d7\u307e\u3067\u306f\u8d77\u304d\u306a\u304b\u3063\u305f\u3002<\/p>\n<p>\u3061\u306a\u307f\u306b\u3060\u3051\u3069\u3001\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u306b\u6d41\u3057\u3066\u307f\u3066\u30b5\u30fc\u30d0\u30fc\u306e\u96a3\u306eWindows\u306b\u3069\u308c\u304f\u3089\u3044\u5f71\u97ff\u304c\u3042\u308b\u304b\u8a66\u3057\u3066\u307f\u305f\u3089\u3001flow\u304c5\u4e07\u304f\u3089\u3044\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u3059\u308920Mbps\u304f\u3089\u3044\u306e\u5e2f\u57df\u3092\u4f7f\u3063\u3066\u305f\u3002<\/p>\n<p>\u3053\u308f\u3044\u3053\u308f\u3044\u3002<\/p>\n<p>CTU\u306f\u8d85\u3048\u306a\u3044\u306f\u305a\u306a\u306e\u3067\u554f\u984c\u306a\u3044\u3051\u3069\u3001\u4e00\u6b69\u9593\u9055\u3048\u305f\u3089\u3048\u3089\u3044\u3053\u3068\u306b\u306a\u3063\u3061\u3083\u3046\u304b\u3089\u3001\u6c17\u3092\u4ed8\u3051\u308b\u3088\u3046\u306b\u3057\u305f\u65b9\u304c\u3044\u3044\u3002<\/p>\n<p>\u8ad6\u3088\u308a\u30b3\u30fc\u30c9\u3068\u3044\u3046\u3051\u308c\u3069\u3001\u4eca\u56de\u306e\u8a71\u306f\u516c\u958b\u306f\u3057\u306a\u3044\u3067\u3059\u3002\u3042\u3068\u3061\u3087\u3063\u3068\u3060\u3051\u8a66\u3057\u3066\u307f\u3088\u3046\u304b\u306a\u3042\u3068\u601d\u3063\u305f\u3051\u3069\u3001\u3084\u3063\u3071\u308a\u3084\u3081\u305fOpenflow\u3068\u3044\u3046\u306e\u304c\u3042\u3063\u3066\u3001\u3053\u308c\u306fflowtable\u3067flow\u306e\u5236\u5fa1\u304c\u3067\u304d\u308b\u3082\u306e\u307f\u305f\u3044\u3002<br \/>\n\u52d5\u7684\u306b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u4f5c\u308c\u308b\u306e\u3060\u305d\u3046\u3060\u3002<\/p>\n<p>\u3061\u307e\u305f\u3067\u6709\u540d\u306aSDN\u3063\u3066\u3084\u3064\u307f\u305f\u3044\u3002SDN48\u3063\u3066\u3042\u308b\u306e\u6700\u8fd1\u77e5\u3063\u305f\u3051\u3069\u3001\u307e\u3063\u305f\u304f\u95a2\u4fc2\u306a\u3044\uff08\u7b11\uff09<\/p>\n<p>CDN\u3068\u304b3\u6587\u5b57\u3070\u3063\u304b\u308a\u3067\u3084\u3084\u3053\u3057\u3044\u3093\u3060\u30fc\u3002<\/p>\n<p>&nbsp;<\/p>\n<div class='wp_social_bookmarking_light'>        <div class=\"wsbl_twitter\"><a href=\"https:\/\/twitter.com\/share\" class=\"twitter-share-button\" data-url=\"https:\/\/www.vincentina.net\/?p=3828\" data-text=\"UDP\u3088\u308aTCP\u306e\u65b9\u304c\uff1f\uff1f\" data-via=\"TakekenTw\" data-lang=\"ja\">Tweet<\/a><\/div><\/div>\n<br class='wp_social_bookmarking_light_clear' \/>\n","protected":false},"excerpt":{"rendered":"<p>\u6628\u65e5\u306b\u5f15\u304d\u7d9a\u3044\u3066\u30bd\u30b1\u30c3\u30c8\u901a\u4fe1\u306a\u8a71\u3067\u3059\u3002 conntrack-tools\u3092\u5c0e\u5165\u3057\u3066\u30d1\u30b1\u30c3\u30c8\u306e\u6d41\u308c\u3092\u898b\u305f\u308a\u3057\u3066\u308b\u4eca\u65e5\u3053\u306e\u9803\u3067\u3059\u304c\u3001\u6d41\u308c\u3092\u898b\u305f\u3068\u304d\u306b conntrack v1.2.1 (conntrack-tools): 19 &hellip; <a href=\"https:\/\/www.vincentina.net\/?p=3828\" class=\"more-link\"><span class=\"screen-reader-text\">&#8220;UDP\u3088\u308aTCP\u306e\u65b9\u304c\uff1f\uff1f&#8221; \u306e<\/span>\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[71],"tags":[],"class_list":["post-3828","post","type-post","status-publish","format-standard","hentry","category-network"],"_links":{"self":[{"href":"https:\/\/www.vincentina.net\/index.php?rest_route=\/wp\/v2\/posts\/3828","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vincentina.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vincentina.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vincentina.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vincentina.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3828"}],"version-history":[{"count":0,"href":"https:\/\/www.vincentina.net\/index.php?rest_route=\/wp\/v2\/posts\/3828\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vincentina.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3828"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vincentina.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3828"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vincentina.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3828"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}