{"id":476877,"date":"2023-08-09T09:04:34","date_gmt":"2023-08-09T09:04:34","guid":{"rendered":""},"modified":"2023-09-05T11:13:37","modified_gmt":"2023-09-05T11:13:37","slug":"dns-amplification-attack","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/kr\/wiki\/dns-amplification-attack\/","title":{"rendered":"DNS \uc99d\ud3ed \uacf5\uaca9"},"content":{"rendered":"<h2>\uc18c\uac1c<\/h2>\n<p>DNS(\ub3c4\uba54\uc778 \uc774\ub984 \uc2dc\uc2a4\ud15c)\ub294 \ub3c4\uba54\uc778 \uc774\ub984\uc744 IP \uc8fc\uc18c\ub85c \ubcc0\ud658\ud558\uc5ec \uc0ac\uc6a9\uc790\uac00 \uce5c\uc219\ud55c \uc774\ub984\uc73c\ub85c \uc6f9\uc0ac\uc774\ud2b8\uc5d0 \uc561\uc138\uc2a4\ud560 \uc218 \uc788\ub3c4\ub85d \ud558\ub294 \uc778\ud130\ub137 \uc778\ud504\ub77c\uc758 \uc911\uc694\ud55c \uad6c\uc131 \uc694\uc18c\uc785\ub2c8\ub2e4. DNS\ub294 \uc778\ud130\ub137\uc758 \ucd08\uc11d \uc5ed\ud560\uc744 \ud558\uc9c0\ub9cc \ub2e4\uc591\ud55c \ubcf4\uc548 \uc704\ud611\uc5d0\ub3c4 \ucde8\uc57d\ud55c\ub370, \uadf8 \uc911 \ud558\ub098\uac00 DNS \uc99d\ud3ed \uacf5\uaca9\uc774\ub2e4. \uc774 \uae30\uc0ac\uc5d0\uc11c\ub294 DNS \uc99d\ud3ed \uacf5\uaca9\uc758 \uc5ed\uc0ac, \uba54\ucee4\ub2c8\uc998, \uc720\ud615 \ubc0f \ub300\uc751\ucc45\uc744 \uc790\uc138\ud788 \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n<h2>\uae30\uc6d0\uacfc \uccab \ubc88\uc9f8 \uc5b8\uae09<\/h2>\n<p>DNS \ubc18\uc0ac \uacf5\uaca9\uc774\ub77c\uace0\ub3c4 \uc54c\ub824\uc9c4 DNS \uc99d\ud3ed \uacf5\uaca9\uc740 2000\ub144\ub300 \ucd08\ubc18\uc5d0 \ucc98\uc74c \ub4f1\uc7a5\ud588\uc2b5\ub2c8\ub2e4. DDoS(\ubd84\uc0b0 \uc11c\ube44\uc2a4 \uac70\ubd80) \uacf5\uaca9\uc758 \uc601\ud5a5\uc744 \uc99d\ud3ed\uc2dc\ud0a4\uae30 \uc704\ud574 DNS \uc11c\ubc84\ub97c \uc774\uc6a9\ud558\ub294 \uae30\uc220\uc740 &quot;Dale Drew&quot;\ub77c\ub294 \uacf5\uaca9\uc790\uc5d0 \uc758\ud574 \ubc1c\uc0dd\ud588\uc2b5\ub2c8\ub2e4. 2002\ub144\uc5d0 Dale Drew\ub294 \uc774\ub7ec\ud55c \uc720\ud615\uc758 \uacf5\uaca9\uc744 \uc2dc\uc5f0\ud588\uc2b5\ub2c8\ub2e4. DNS \uc778\ud504\ub77c\ub97c \ud65c\uc6a9\ud558\uc5ec \uacfc\ub3c4\ud55c \ud2b8\ub798\ud53d\uc73c\ub85c \ub300\uc0c1\uc744 \uacf5\uaca9\ud558\uc5ec \uc11c\ube44\uc2a4 \uc911\ub2e8\uc744 \ucd08\ub798\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>DNS \uc99d\ud3ed \uacf5\uaca9 \uc0c1\uc138\uc815\ubcf4<\/h2>\n<p>DNS \uc99d\ud3ed \uacf5\uaca9\uc740 \ud2b9\uc815 DNS \uc11c\ubc84\uc758 \uace0\uc720\ud55c \ub3d9\uc791\uc744 \uc774\uc6a9\ud558\uc5ec \ub354 \ud070 \uc751\ub2f5\uc73c\ub85c \ub300\uaddc\ubaa8 DNS \ucffc\ub9ac\uc5d0 \uc751\ub2f5\ud569\ub2c8\ub2e4. \uc790\uccb4 \ub124\ud2b8\uc6cc\ud06c \ub0b4 \ucffc\ub9ac\uc5d0\ub9cc \uc751\ub2f5\ud558\ub294 \uac83\uc774 \uc544\ub2c8\ub77c \ubaa8\ub4e0 \uc18c\uc2a4\uc758 DNS \ucffc\ub9ac\ub97c \uc218\ub77d\ud558\uace0 \uc751\ub2f5\ud558\ub294 \uac1c\ubc29\ud615 DNS \ud655\uc778\uc790\ub97c \ud65c\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n<h2>DNS \uc99d\ud3ed \uacf5\uaca9\uc758 \ub0b4\ubd80 \uad6c\uc870<\/h2>\n<p>DNS \uc99d\ud3ed \uacf5\uaca9\uc5d0\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ub2e4\uc74c \ub2e8\uacc4\uac00 \ud3ec\ud568\ub429\ub2c8\ub2e4.<\/p>\n<ol>\n<li>\n<p><strong>\uc2a4\ud478\ud551\ub41c \uc18c\uc2a4 IP:<\/strong> \uacf5\uaca9\uc790\ub294 \uc18c\uc2a4 IP \uc8fc\uc18c\ub97c \uc2a4\ud478\ud551\ud558\uc5ec \ud53c\ud574\uc790\uc758 IP \uc8fc\uc18c\uc778 \uac83\ucc98\ub7fc \ubcf4\uc774\uac8c \ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>DNS \ucffc\ub9ac:<\/strong> \uacf5\uaca9\uc790\ub294 \uacf5\uac1c DNS \ud655\uc778\uc790\uc5d0\uac8c \ud2b9\uc815 \ub3c4\uba54\uc778 \uc774\ub984\uc5d0 \ub300\ud55c DNS \ucffc\ub9ac\ub97c \ubcf4\ub0b4 \uc694\uccad\uc774 \ud53c\ud574\uc790\ub85c\ubd80\ud130 \uc624\ub294 \uac83\ucc98\ub7fc \ubcf4\uc774\uac8c \ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\uc99d\ud3ed\ub41c \uc751\ub2f5:<\/strong> \uac1c\ubc29\ud615 DNS \ud655\uc778\uc790\ub294 \uc694\uccad\uc774 \ud569\ubc95\uc801\uc774\ub77c\uace0 \uac00\uc815\ud558\uace0 \ud6e8\uc52c \ub354 \ud070 DNS \uc751\ub2f5\uc73c\ub85c \uc751\ub2f5\ud569\ub2c8\ub2e4. \uc774 \uc751\ub2f5\uc740 \ud53c\ud574\uc790\uc758 IP \uc8fc\uc18c\ub85c \uc804\uc1a1\ub418\uc5b4 \ub124\ud2b8\uc6cc\ud06c \uc6a9\ub7c9\uc744 \uc555\ub3c4\ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>DDoS \ud6a8\uacfc:<\/strong> \uc218\ub9ce\uc740 \uac1c\ubc29\ud615 DNS \ud655\uc778\uc790\uac00 \ud53c\ud574\uc790\uc758 IP\uc5d0 \uc99d\ud3ed\ub41c \uc751\ub2f5\uc744 \ubcf4\ub0b4\uba74 \ub300\uc0c1\uc758 \ub124\ud2b8\uc6cc\ud06c\uc5d0 \ud2b8\ub798\ud53d\uc774 \ub118\uccd0 \uc11c\ube44\uc2a4\uac00 \uc911\ub2e8\ub418\uac70\ub098 \uc2ec\uc9c0\uc5b4\ub294 \uc644\uc804\ud55c \uc11c\ube44\uc2a4 \uac70\ubd80\uac00 \ubc1c\uc0dd\ud558\uac8c \ub429\ub2c8\ub2e4.<\/p>\n<\/li>\n<\/ol>\n<h2>DNS \uc99d\ud3ed \uacf5\uaca9\uc758 \uc8fc\uc694 \ud2b9\uc9d5<\/h2>\n<ul>\n<li>\n<p><strong>\uc99d\ud3ed \uc778\uc790:<\/strong> \uc99d\ud3ed \uc694\uc18c\ub294 \uc774 \uacf5\uaca9\uc758 \uc911\uc694\ud55c \ud2b9\uc9d5\uc785\ub2c8\ub2e4. DNS \ucffc\ub9ac \ud06c\uae30\uc5d0 \ub300\ud55c DNS \uc751\ub2f5 \ud06c\uae30\uc758 \ube44\uc728\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \uc99d\ud3ed \uacc4\uc218\uac00 \ub192\uc744\uc218\ub85d \uacf5\uaca9 \ud53c\ud574\uac00 \ucee4\uc9d1\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\ud2b8\ub798\ud53d \uc18c\uc2a4 \uc2a4\ud478\ud551:<\/strong> \uacf5\uaca9\uc790\ub294 DNS \ucffc\ub9ac\uc5d0\uc11c \uc18c\uc2a4 IP \uc8fc\uc18c\ub97c \uc704\uc870\ud558\ubbc0\ub85c \uacf5\uaca9\uc758 \uc2e4\uc81c \uc18c\uc2a4\ub97c \ucd94\uc801\ud558\uae30\uac00 \uc5b4\ub835\uc2b5\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\ubc18\uc0ac:<\/strong> \uacf5\uaca9\uc740 DNS \ud655\uc778\uc790\ub97c \uc99d\ud3ed\uae30\ub85c \uc0ac\uc6a9\ud558\uc5ec \ud53c\ud574\uc790\ub97c \ud5a5\ud55c \ud2b8\ub798\ud53d\uc744 \ubc18\uc0ac\ud558\uace0 \uc99d\ud3ed\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n<\/li>\n<\/ul>\n<h2>DNS \uc99d\ud3ed \uacf5\uaca9 \uc720\ud615<\/h2>\n<p>DNS \uc99d\ud3ed \uacf5\uaca9\uc740 \uacf5\uaca9\uc5d0 \uc0ac\uc6a9\ub41c DNS \ub808\ucf54\ub4dc \uc720\ud615\uc5d0 \ub530\ub77c \ubd84\ub958\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc778 \uc720\ud615\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n<table>\n<thead>\n<tr>\n<th>\uacf5\uaca9 \uc720\ud615<\/th>\n<th>\uc0ac\uc6a9\ub41c DNS \ub808\ucf54\ub4dc<\/th>\n<th>\uc99d\ud3ed \uc778\uc790<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\uc77c\ubc18 DNS<\/td>\n<td>\u314f<\/td>\n<td>1-10\ubc30<\/td>\n<\/tr>\n<tr>\n<td>DNSSEC<\/td>\n<td>\uc5b4\ub290<\/td>\n<td>20-30\ubc30<\/td>\n<\/tr>\n<tr>\n<td>EDNS0\uc744 \uc0ac\uc6a9\ud55c DNSSEC<\/td>\n<td>\ubaa8\ub450 + EDNS0<\/td>\n<td>100-200x<\/td>\n<\/tr>\n<tr>\n<td>\uc874\uc7ac\ud558\uc9c0 \uc54a\ub294 \ub3c4\uba54\uc778<\/td>\n<td>\uc5b4\ub290<\/td>\n<td>100-200x<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>DNS \uc99d\ud3ed \uacf5\uaca9 \ud65c\uc6a9 \ubc29\ubc95, \ubb38\uc81c\uc810, \ud574\uacb0 \ubc29\ubc95<\/h2>\n<h3>DNS \uc99d\ud3ed \uacf5\uaca9\uc744 \uc0ac\uc6a9\ud558\ub294 \ubc29\ubc95<\/h3>\n<ol>\n<li>\n<p><strong>DDoS \uacf5\uaca9:<\/strong> DNS \uc99d\ud3ed \uacf5\uaca9\uc758 \uc8fc\uc694 \uc6a9\ub3c4\ub294 \ud2b9\uc815 \ub300\uc0c1\uc5d0 \ub300\ud574 DDoS \uacf5\uaca9\uc744 \uc2dc\uc791\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uacf5\uaca9\uc740 \ub300\uc0c1\uc758 \uc778\ud504\ub77c\ub97c \uc555\ub3c4\ud568\uc73c\ub85c\uc368 \uc11c\ube44\uc2a4\ub97c \uc911\ub2e8\uc2dc\ud0a4\uace0 \uac00\ub3d9 \uc911\uc9c0 \uc2dc\uac04\uc744 \uc720\ubc1c\ud558\ub294 \uac83\uc744 \ubaa9\ud45c\ub85c \ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>IP \uc8fc\uc18c \uc2a4\ud478\ud551:<\/strong> \uacf5\uaca9\uc740 IP \uc8fc\uc18c \uc2a4\ud478\ud551\uc744 \ud65c\uc6a9\ud558\uc5ec \uacf5\uaca9\uc758 \uc2e4\uc81c \uc18c\uc2a4\ub97c \ub09c\ub3c5\ud654\ud558\ub294 \ub370 \uc0ac\uc6a9\ub420 \uc218 \uc788\uc73c\ubbc0\ub85c \ubc29\uc5b4\uc790\uac00 \ucd9c\ucc98\ub97c \uc815\ud655\ud558\uac8c \ucd94\uc801\ud558\uae30 \uc5b4\ub835\uac8c \ub9cc\ub4ed\ub2c8\ub2e4.<\/p>\n<\/li>\n<\/ol>\n<h3>\ubb38\uc81c \ubc0f \ud574\uacb0 \ubc29\ubc95<\/h3>\n<ul>\n<li>\n<p><strong>\uac1c\ubc29\ud615 DNS \ud655\uc778\uc790:<\/strong> \uc8fc\uc694 \ubb38\uc81c\ub294 \uc778\ud130\ub137\uc5d0 \uacf5\uac1c DNS \ud655\uc778\uc790\uac00 \uc874\uc7ac\ud55c\ub2e4\ub294 \uac83\uc785\ub2c8\ub2e4. \ub124\ud2b8\uc6cc\ud06c \uad00\ub9ac\uc790\ub294 DNS \uc11c\ubc84\ub97c \ubcf4\ud638\ud558\uace0 \ub124\ud2b8\uc6cc\ud06c \ub0b4\uc5d0\uc11c \ud569\ubc95\uc801\uc778 \ucffc\ub9ac\uc5d0\ub9cc \uc751\ub2f5\ud558\ub3c4\ub85d \uad6c\uc131\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\ud328\ud0b7 \ud544\ud130\ub9c1:<\/strong> ISP\uc640 \ub124\ud2b8\uc6cc\ud06c \uad00\ub9ac\uc790\ub294 \ud328\ud0b7 \ud544\ud130\ub9c1\uc744 \uad6c\ud604\ud558\uc5ec \uc2a4\ud478\ud551\ub41c \uc18c\uc2a4 IP\uac00 \ud3ec\ud568\ub41c DNS \ucffc\ub9ac\uac00 \ub124\ud2b8\uc6cc\ud06c\ub97c \ub5a0\ub098\ub294 \uac83\uc744 \ucc28\ub2e8\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>DNS \uc751\ub2f5 \uc18d\ub3c4 \uc81c\ud55c(DNS RRL):<\/strong> DNS \uc11c\ubc84\uc5d0 DNS RRL\uc744 \uad6c\ud604\ud558\uba74 \ud2b9\uc815 IP \uc8fc\uc18c\uc758 \ucffc\ub9ac\uc5d0 \uc751\ub2f5\ud558\ub294 \uc18d\ub3c4\ub97c \uc81c\ud55c\ud558\uc5ec DNS \uc99d\ud3ed \uacf5\uaca9\uc758 \uc601\ud5a5\uc744 \uc644\ud654\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/li>\n<\/ul>\n<h2>\uc8fc\uc694 \ud2b9\uc9d5 \ubc0f \ube44\uad50<\/h2>\n<table>\n<thead>\n<tr>\n<th>\ud2b9\uc131<\/th>\n<th>DNS \uc99d\ud3ed \uacf5\uaca9<\/th>\n<th>DNS \uc2a4\ud478\ud551 \uacf5\uaca9<\/th>\n<th>DNS \uce90\uc2dc \uc911\ub3c5<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\ubaa9\uc801<\/td>\n<td>DDoS<\/td>\n<td>\ub370\uc774\ud130 \uc870\uc791<\/td>\n<td>\ub370\uc774\ud130 \uc870\uc791<\/td>\n<\/tr>\n<tr>\n<td>\uacf5\uaca9 \uc720\ud615<\/td>\n<td>\ubc18\uc0ac \uae30\ubc18<\/td>\n<td>\uc911\uac04\uc5d0\uc788\ub294 \ub0a8\uc131<\/td>\n<td>\uc8fc\uc785 \uae30\ubc18<\/td>\n<\/tr>\n<tr>\n<td>\uc99d\ud3ed \uc778\uc790<\/td>\n<td>\ub192\uc740<\/td>\n<td>\ub0ae\uc740<\/td>\n<td>\uc5c6\uc74c<\/td>\n<\/tr>\n<tr>\n<td>\uc704\ud5d8 \uc218\uc900<\/td>\n<td>\ub192\uc740<\/td>\n<td>\uc911\uac04<\/td>\n<td>\uc911\uac04<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\uad00\uc810\uacfc \ubbf8\ub798 \uae30\uc220<\/h2>\n<p>\uc5f0\uad6c\uc6d0\uacfc \uc0ac\uc774\ubc84 \ubcf4\uc548 \uc804\ubb38\uac00\uac00 \ub04a\uc784\uc5c6\uc774 \uc0c8\ub85c\uc6b4 \uc644\ud654 \uae30\uc220\uc744 \uace0\uc548\ud558\uba74\uc11c DNS \uc99d\ud3ed \uacf5\uaca9\uacfc\uc758 \uc804\uc7c1\uc740 \uacc4\uc18d \uc9c4\ud654\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ubbf8\ub798 \uae30\uc220\uc5d0\ub294 \ub2e4\uc74c\uc774 \ud3ec\ud568\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<ul>\n<li>\n<p><strong>\uba38\uc2e0\ub7ec\ub2dd \uae30\ubc18 \ubc29\uc5b4:<\/strong> \uae30\uacc4 \ud559\uc2b5 \uc54c\uace0\ub9ac\uc998\uc744 \uc0ac\uc6a9\ud558\uc5ec DNS \uc99d\ud3ed \uacf5\uaca9\uc744 \uc2e4\uc2dc\uac04\uc73c\ub85c \ud0d0\uc9c0\ud558\uace0 \uc644\ud654\ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>DNSSEC \uad6c\ud604:<\/strong> DNSSEC(Domain Name System Security Extensions)\ub97c \ub110\ub9ac \ucc44\ud0dd\ud558\uba74 \ubaa8\ub4e0 \ub808\ucf54\ub4dc\ub97c \uc545\uc6a9\ud558\ub294 DNS \uc99d\ud3ed \uacf5\uaca9\uc744 \ubc29\uc9c0\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/li>\n<\/ul>\n<h2>\ud504\ub85d\uc2dc \uc11c\ubc84 \ubc0f DNS \uc99d\ud3ed \uacf5\uaca9<\/h2>\n<p>OneProxy\uc5d0\uc11c \uc81c\uacf5\ud558\ub294 \uc11c\ubc84\ub97c \ud3ec\ud568\ud55c \ud504\ub85d\uc2dc \uc11c\ubc84\ub294 \uc798\ubabb \uad6c\uc131\ub418\uac70\ub098 \ubaa8\ub4e0 \uc18c\uc2a4\uc758 DNS \ud2b8\ub798\ud53d\uc744 \ud5c8\uc6a9\ud558\ub294 \uacbd\uc6b0 \uc758\ub3c4\uce58 \uc54a\uac8c DNS \uc99d\ud3ed \uacf5\uaca9\uc758 \uc77c\ubd80\uac00 \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud504\ub85d\uc2dc \uc11c\ubc84 \uc81c\uacf5\uc5c5\uccb4\ub294 \uc11c\ubc84\ub97c \ubcf4\ud638\ud558\uace0 \uc774\ub7ec\ud55c \uacf5\uaca9\uc5d0 \ucc38\uc5ec\ud558\uc9c0 \ubabb\ud558\ub3c4\ub85d \ubc29\uc9c0\ud558\uae30 \uc704\ud55c \uc870\uce58\ub97c \ucde8\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h2>\uad00\ub828\ub41c \ub9c1\ud06c\ub4e4<\/h2>\n<p>DNS \uc99d\ud3ed \uacf5\uaca9\uc5d0 \ub300\ud55c \uc790\uc138\ud55c \ub0b4\uc6a9\uc744 \ubcf4\ub824\uba74 \ub2e4\uc74c \ub9ac\uc18c\uc2a4\ub97c \uc0b4\ud3b4\ubcf4\uc138\uc694.<\/p>\n<ol>\n<li><a href=\"https:\/\/us-cert.cisa.gov\/ncas\/alerts\/TA13-088A\" target=\"_new\" rel=\"noopener nofollow\">US-CERT \uacbd\ubcf4(TA13-088A): DNS \uc99d\ud3ed \uacf5\uaca9<\/a><\/li>\n<li><a href=\"https:\/\/tools.ietf.org\/html\/rfc5358\" target=\"_new\" rel=\"noopener nofollow\">RFC 5358 \u2013 \ub9ac\ud50c\ub809\ud130 \uacf5\uaca9\uc5d0\uc11c \uc7ac\uadc0 DNS \uc11c\ubc84 \uc0ac\uc6a9 \ubc29\uc9c0<\/a><\/li>\n<li><a href=\"https:\/\/www.akamai.com\/us\/en\/multimedia\/documents\/white-paper\/dns-amplification-attacks-and-response-policy-zones-wp.pdf\" target=\"_new\" rel=\"noopener nofollow\">DNS \uc99d\ud3ed \uacf5\uaca9 \ubc0f RPZ(\ub300\uc751 \uc815\ucc45 \uc601\uc5ed)<\/a><\/li>\n<\/ol>\n<p>DNS \uc99d\ud3ed \uacf5\uaca9\uacfc \uac19\uc740 \uc0ac\uc774\ubc84 \uc704\ud611\uc5d0 \ub9de\uc11c\uae30 \uc704\ud574\uc11c\ub294 \uc9c0\uc2dd\uacfc \uc778\uc2dd\uc774 \ud544\uc218\uc801\uc774\ub77c\ub294 \uc810\uc744 \uae30\uc5b5\ud558\uc2ed\uc2dc\uc624. \uc774\ub7ec\ud55c \uc7a0\uc7ac\uc801\uc778 \uc704\ud5d8\uc73c\ub85c\ubd80\ud130 \ubcf4\ud638\ud558\uae30 \uc704\ud574 \uc815\ubcf4\ub97c \uc5bb\uace0 \uacbd\uacc4\ud558\uba70 \uc778\ud130\ub137 \uc778\ud504\ub77c\ub97c \ubcf4\ud638\ud558\uc2ed\uc2dc\uc624.<\/p>","protected":false},"featured_media":476878,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476877","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>DNS Amplification Attack: Unveiling the Threat<\/mark>","faq_items":[{"question":"What is a DNS amplification attack?","answer":"<p>A DNS amplification attack is a type of cyber threat that exploits open DNS resolvers to flood a target's network with overwhelming traffic. The attacker sends DNS queries with forged source IP addresses to these open resolvers, which then respond with much larger DNS responses, amplifying the traffic directed towards the victim. This can lead to a Distributed Denial of Service (DDoS) situation, disrupting the target's services.<\/p>"},{"question":"How did DNS amplification attacks originate?","answer":"<p>The first mention of DNS amplification attacks can be traced back to the early 2000s, with an attacker named \"Dale Drew\" demonstrating this technique. By leveraging open DNS resolvers, he showcased how attackers could magnify the impact of DDoS attacks, causing service disruptions.<\/p>"},{"question":"How does a DNS amplification attack work?","answer":"<p>The internal structure of a DNS amplification attack involves several steps. First, the attacker spoofs their source IP address to make it appear as the victim's IP. Then, they send DNS queries to open DNS resolvers, making it seem like the requests are coming from the victim. The open resolvers, assuming the requests are legitimate, respond with larger DNS responses, which flood the victim's network, causing a DDoS effect.<\/p>"},{"question":"What are the key features of DNS amplification attacks?","answer":"<p>The key features of DNS amplification attacks include the amplification factor, which represents the ratio of DNS response size to query size. Additionally, traffic source spoofing is used to hide the true origin of the attack. Reflection is also a crucial aspect, as open DNS resolvers amplify the attack traffic towards the victim.<\/p>"},{"question":"What types of DNS amplification attacks exist?","answer":"<p>DNS amplification attacks can be categorized based on the type of DNS record used for the attack. Common types include Regular DNS, DNSSEC, DNSSEC with EDNS0, and Non-Existent Domain attacks. Each type varies in its amplification factor and potential impact on the target.<\/p>"},{"question":"How can DNS amplification attacks be used, and what are the problems and solutions?","answer":"<p>DNS amplification attacks are primarily used to launch DDoS attacks, causing service disruptions. The main problem lies in the existence of open DNS resolvers, which attackers exploit. Solutions include securing DNS servers, implementing packet filtering, and using DNS Response Rate Limiting (DNS RRL).<\/p>"},{"question":"How does DNS amplification attack compare with other DNS-related threats?","answer":"<p>DNS amplification attacks differ from DNS spoofing attacks and DNS cache poisoning. While DNS amplification aims for DDoS, DNS spoofing manipulates data and DNS cache poisoning injects false data into DNS caches.<\/p>"},{"question":"What are the future perspectives and technologies related to DNS amplification attacks?","answer":"<p>The future holds promising technologies, such as machine learning-based defenses and wider adoption of DNSSEC, to mitigate DNS amplification attacks effectively.<\/p>"},{"question":"How are proxy servers associated with DNS amplification attacks?","answer":"<p>Proxy servers, like those provided by OneProxy, may inadvertently be part of DNS amplification attacks if misconfigured or allowing DNS traffic from any source. OneProxy ensures secure servers, preventing such risks.<\/p>"},{"question":"Where can I find more information about DNS amplification attacks?","answer":"<p>For further information, you can explore the following resources:<\/p><ol><li><a href=\"https:\/\/us-cert.cisa.gov\/ncas\/alerts\/TA13-088A\" target=\"_new\">US-CERT Alert (TA13-088A): DNS Amplification Attacks<\/a><\/li><li><a href=\"https:\/\/tools.ietf.org\/html\/rfc5358\" target=\"_new\">RFC 5358 - Preventing Use of Recursive DNS Servers in Reflector Attacks<\/a><\/li><li><a href=\"https:\/\/www.akamai.com\/us\/en\/multimedia\/documents\/white-paper\/dns-amplification-attacks-and-response-policy-zones-wp.pdf\" target=\"_new\">DNS Amplification Attacks and Response Policy Zones (RPZ)<\/a><\/li><\/ol>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/kr\/wp-json\/wp\/v2\/wiki\/476877","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/kr\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/kr\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/kr\/wp-json\/wp\/v2\/wiki\/476877\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/kr\/wp-json\/wp\/v2\/media\/476878"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/kr\/wp-json\/wp\/v2\/media?parent=476877"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}