{"id":5309,"date":"2015-05-07T20:09:43","date_gmt":"2015-05-07T11:09:43","guid":{"rendered":"http:\/\/www.vincentina.net\/?p=5309"},"modified":"2015-05-07T20:09:43","modified_gmt":"2015-05-07T11:09:43","slug":"access_log%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6%e3%81%a1%e3%82%87%e3%81%93%e3%81%a3%e3%81%a8%e3%81%a0%e3%81%91%e8%80%83%e3%81%88%e3%81%9f","status":"publish","type":"post","link":"https:\/\/www.vincentina.net\/?p=5309","title":{"rendered":"Access_Log\u306b\u3064\u3044\u3066\u3061\u3087\u3053\u3063\u3068\u3060\u3051\u8003\u3048\u305f"},"content":{"rendered":"<p>Apache\u306eAccess_log\u304c\u4e00\u4f53\u3069\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u8a18\u9332\u3055\u308c\u3066\u308b\u306e\u304b\u306a\u301c\u3068\u3044\u3046\u3053\u3068\u3092\u4e88\u60f3\u3092\u3059\u308b\u3068\u3001\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u306b\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u5c4a\u3044\u305f\u6642\u304b\u306a\uff1f\uff01<br \/>\n\u3068\u601d\u3044\u304c\u3061\u3067\u3059\u3002\u601d\u3044\u304c\u3061\u3068\u8a00\u3044\u307e\u3059\u304b\u3001\u305d\u3046\u601d\u3063\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n<p>\u3053\u306e\u5b9f\u9a13\u306b\u5148\u7acb\u3063\u3066TCP\u306eTime_wait\u5024\u3092\u3081\u3063\u3061\u3083\u77ed\u304f\u3057\u3066\u3084\u308d\u3046\u3068\u601d\u3044\u307e\u3057\u305f\u304c\u3001TCP\u306e\u8a2d\u5b9a\u5909\u66f4\u306fKernel\u306e\u30ea\u30d3\u30eb\u30c9\u304c\u5fc5\u8981\u3060\u3063\u305f\u306e\u3067<span style=\"font-size: 16pt;\">\u3084\u308a\u307e\u305b\u3093\uff01<\/span>\u5b9f\u9a13\u3068\u8a00\u3063\u3066\u3082\u3001\u3068\u3063\u3066\u3082\u3068\u3063\u3066\u3082\u7c21\u5358\u306a\u65b9\u6cd5\u3067\u3084\u308a\u307e\u3059\u3002<br \/>\n\u6700\u521d\u306fSynFlood\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u62fe\u3063\u3066\u304d\u3066\u5f04\u3063\u3066\u307f\u3066\u3001TCP\u306e\u63a5\u7d9a\u3054\u3068\u306e\u30b1\u30fc\u30b9\u3092\u8a66\u3057\u3066\u307f\u3088\u3046\u304b\u306a\uff1f\u306a\u3093\u3066\u3044\u3046\u8abf\u5b50\u306b\u4e57\u3063\u305f\u4e8b\u3092\u8003\u3048\u307e\u3057\u305f\u304c\u3001\u305a\u3044\u3076\u3093\u3068\u6642\u9593\u304c\u304b\u304b\u308a\u305d\u3046\u306a\u306e\u3067\u4eca\u56de\u306f\u3084\u3081\u3066\u304a\u304d\u307e\u3059\u3002<br \/>\n\u3060\u3051\u3069\u9762\u767d\u305d\u3046\u306a\u306e\u3067\u307e\u305f\u5225\u306e\u6a5f\u4f1a\u306b\u3053\u306e\u8fba\u306b\u3064\u3044\u3066\u306f\u5b9f\u9a13\u3092\u3084\u308a\u305f\u3044\u306a\u301c\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<p>\u3067\u306f\u672c\u984c\u306b\u3002<\/p>\n<p>\u65b9\u6cd5\u3068\u306f\u3001Telnet\u3067\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u51fa\u3055\u305a\u306b\u653e\u7f6e\u3057\u307e\u3059\u3002<br \/>\n\u3053\u308c\u3060\u3068\u6b8b\u3089\u306a\u3044\u3068\u601d\u3046\u3067\u3057\u3087\uff1f<br \/>\n\u3068\u3053\u308d\u304c\u3069\u3063\u3053\u3044\u306a\u3093\u3060\u3002<br \/>\nEstablished\u306b\u306a\u308b\u3057\u3001Access_log\u306b\u3082\u6b8b\u308a\u307e\u3059\u3002<\/p>\n<p>\u3067\u306f\u3055\u3063\u305d\u304f\u3067\u3059\u304c\u5b9f\u9a13\u306b\u5165\u308a\u307e\u3059\u3002<br \/>\n\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u306f\u307e\u305a\u306fnetstat\u3067\u72b6\u614b\u3092\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u304b\u3002<br \/>\nAccess_log\u306f\u5f8c\u306e\u304a\u697d\u3057\u307f\u3067\u3002<\/p>\n<p>\u3067\u306fTelnet\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n<pre>\n\nroot@deb:\/home\/user# telnet \u76f8\u624b\u306e\u30b5\u30fc\u30d0 http\nTrying \u76f8\u624b\u306e\u30b5\u30fc\u30d0 ...\nConnected to \u76f8\u624b\u306e\u30b5\u30fc\u30d0.\nEscape character is '^]'.\n\n<\/pre>\n<p>Telnet\u304c\u4e0a\u306e\u3088\u3046\u306a\u72b6\u614b\u3060\u3068\u3001\u307e\u305a\u306f\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u5074\u306e\u72b6\u614b\u306fSYN\u3092\u53d7\u3051\u53d6\u3063\u305f\u72b6\u614b\u304c\u7d9a\u304d\u307e\u3059\u3002<br \/>\n\u3061\u306a\u307f\u306bSSH\u3084SMTP\u306a\u3069\u306f\u3059\u3050\u306b\u30b5\u30fc\u30d3\u30b9\u306e\u65b9\u304c\u5fdc\u7b54\u3059\u308b\u306e\u3067\u3044\u304d\u306a\u308a\uff08\u3067\u306f\u306a\u3044\u3051\u3069\uff09Established\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre>\ntcp      SYN_RECV\ntcp      SYN_RECV\ntcp      SYN_RECV\ntcp      SYN_RECV\n<\/pre>\n<p>\u3057\u3070\u3089\u304f\u3059\u308b\u3068\u63a5\u7d9a\u304c\u78ba\u7acb\u3055\u308c\u308b\u306e\u3067\u3059\u3002<br \/>\nTelnet\u306e\u65b9\u306f\u5909\u5316\u306f\u306a\u304f\u3063\u3066\u3001\u4eca\u306fApache\u304c\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304b\u3089\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u5f85\u3064\u5f85\u6a5f\u6642\u9593\u3068\u601d\u308f\u308c\u307e\u3059\u3002<\/p>\n<pre>\ntcp   SYN_RECV\ntcp   SYN_RECV\ntcp   ESTABLISHED\ntcp   ESTABLISHED\ntcp   ESTABLISHED\n<\/pre>\n<p>\u305d\u3057\u3066\u653e\u7f6e\u3092\u7d9a\u3051\u308b\u3068\u305d\u306e\u3046\u3061TIMEOUT\u3057\u307e\u3059\u3002<br \/>\nTelnet\u306fConnection\u304cClose\u3055\u308c\u307e\u3059\u3002<\/p>\n<pre>\nEscape character is '^]'.\nConnection closed by foreign host.\n<\/pre>\n<pre>\ntcp      ESTABLISHED\ntcp      ESTABLISHED\ntcp      ESTABLISHED\ntcp      TIME_WAIT\ntcp      TIME_WAIT\ntcp      TIME_WAIT\ntcp      TIME_WAIT\ntcp      TIME_WAIT\ntcp      TIME_WAIT\ntcp      TIME_WAIT\n<\/pre>\n<p>Access_log\u306f\u3053\u306eTime_wait\u306b\u306a\u3063\u305f\u3068\u3053\u308d\u3067\u8a18\u9332\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u3069\u3093\u306a\u30ed\u30b0\u304b\u898b\u3066\u307f\u307e\u3059\u3002<\/p>\n<pre>\n[07\/May\/2015:18:49:49 +0900] \"-\" 408 -\n<\/pre>\n<p>\u30fb\u30fb\u30fb<\/p>\n<p>408\u3063\u3066\u306a\u3093\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<pre>\n408 Request Timeout \u30bf\u30a4\u30e0\u30a2\u30a6\u30c8  1.1\n\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u3001\u30b5\u30fc\u30d0\u306e\u5f85\u6a5f\u6642\u9593\u5185\u306b\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u767a\u884c\u3057\u306a\u304b\u3063\u305f\u3002\n<\/pre>\n<p><span style=\"font-size: 17pt;\">\u30b5\u30fc\u30d0\u306e\u5f85\u6a5f\u6642\u9593\u5185\u306b\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u767a\u884c\u3057\u306a\u304b\u3063\u305f\u3002<\/span><\/p>\n<p><a href=\"http:\/\/www.vincentina.net\/wp-content\/uploads\/2015\/05\/nandate.gif\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.vincentina.net\/wp-content\/uploads\/2015\/05\/nandate.gif\" alt=\"nandate\" width=\"360\" height=\"174\" class=\"alignnone size-full wp-image-5310\" \/><\/a><\/p>\n<p>\u305d\u3046\u306a\u3093\u3067\u3059\u3002<br \/>\n\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u767a\u884c\u3057\u306a\u304b\u3063\u305f\u3002\u3068\u3044\u3046\u30ed\u30b0\u304c\u6b8b\u308a\u307e\u3059\u3002<\/p>\n<p>\u6012\u3089\u306a\u3044\u3067\u306d\u3002<\/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=5309\" data-text=\"Access_Log\u306b\u3064\u3044\u3066\u3061\u3087\u3053\u3063\u3068\u3060\u3051\u8003\u3048\u305f\" data-via=\"TakekenTw\" data-lang=\"ja\">Tweet<\/a><\/div><\/div>\n<br class='wp_social_bookmarking_light_clear' \/>\n","protected":false},"excerpt":{"rendered":"<p>Apache\u306eAccess_log\u304c\u4e00\u4f53\u3069\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u8a18\u9332\u3055\u308c\u3066\u308b\u306e\u304b\u306a\u301c\u3068\u3044\u3046\u3053\u3068\u3092\u4e88\u60f3\u3092\u3059\u308b\u3068\u3001\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u306b\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u5c4a\u3044\u305f\u6642\u304b\u306a\uff1f\uff01 \u3068\u601d\u3044\u304c\u3061\u3067\u3059\u3002\u601d\u3044\u304c\u3061\u3068\u8a00\u3044\u307e\u3059\u304b\u3001\u305d\u3046\u601d\u3063\u3066\u3044\u307e\u3057\u305f\u3002 \u3053\u306e\u5b9f\u9a13\u306b\u5148 &hellip; <a href=\"https:\/\/www.vincentina.net\/?p=5309\" class=\"more-link\"><span class=\"screen-reader-text\">&#8220;Access_Log\u306b\u3064\u3044\u3066\u3061\u3087\u3053\u3063\u3068\u3060\u3051\u8003\u3048\u305f&#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":[6],"tags":[],"class_list":["post-5309","post","type-post","status-publish","format-standard","hentry","category-server"],"_links":{"self":[{"href":"https:\/\/www.vincentina.net\/index.php?rest_route=\/wp\/v2\/posts\/5309","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=5309"}],"version-history":[{"count":0,"href":"https:\/\/www.vincentina.net\/index.php?rest_route=\/wp\/v2\/posts\/5309\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vincentina.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5309"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vincentina.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5309"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vincentina.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5309"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}