锘??xml version="1.0" encoding="utf-8" standalone="yes"?>久久综合视频网,国产毛片久久久久久国产毛片 ,国内精品久久久久久不卡影院 http://www.shnenglu.com/beautykingdom/category/12594.htmlzh-cnFri, 22 Jan 2010 11:40:06 GMTFri, 22 Jan 2010 11:40:06 GMT60鍒╃敤鍙嶅脊鎶鏈繘琛孌DoS鏀誨嚮鐨勫垎鏋愪笌闃插盡http://www.shnenglu.com/beautykingdom/archive/2010/01/22/106234.htmlchatlerchatlerFri, 22 Jan 2010 10:08:00 GMThttp://www.shnenglu.com/beautykingdom/archive/2010/01/22/106234.htmlhttp://www.shnenglu.com/beautykingdom/comments/106234.htmlhttp://www.shnenglu.com/beautykingdom/archive/2010/01/22/106234.html#Feedback0http://www.shnenglu.com/beautykingdom/comments/commentRss/106234.htmlhttp://www.shnenglu.com/beautykingdom/services/trackbacks/106234.html

鏀誨嚮鑰呭彲浠ラ氳繃鍙嶅脊鎶鏈嬌鎴戜滑瀵笵DOS 鏀誨嚮鏇撮毦浠ラ槻寰♀斺斿埄鐢ㄥ弽寮規湇鍔″櫒鍙嶅脊DDOS鐨勬椽姘村寘錛屼篃灝辨槸璇達紝閫氳繃鍙戦佸ぇ閲忕殑嬈洪獥璇鋒眰鏁版嵁鍖咃紙鏉ユ簮鍦板潃涓簐ictim錛屽彈瀹蟲湇鍔″櫒錛屾垨鐩爣鏈嶅姟鍣級 緇橧nternet涓婂ぇ閲忕殑鏈嶅姟鍣ㄧ兢錛岃岃繖浜涙湇鍔″櫒緹ゆ敹鍒拌姹傚悗灝嗗彂閫佸ぇ閲忕殑搴旂瓟鍖呯粰victim銆傜粨鏋滄槸鍘熸潵鐢ㄤ簬鏀誨嚮鐨勬椽姘存暟鎹祦琚ぇ閲忕殑鏈嶅姟鍣ㄦ墍紼 閲婏紝騫舵渶緇堝湪鍙楀鑰呭姹囬泦涓烘椽姘達紝浣垮彈瀹寵呮洿闅句互闅旂鏀誨嚮媧按嫻侊紝騫朵笖鏇撮毦浠ョ敤Traceback 璺熻釜鎶鏈幓鎵懼埌媧按嫻佺殑鏉ユ簮銆?

銆銆鍦ㄥ垎甯冨紡DOS鏀誨嚮錛圖DOS錛変腑錛屾敾鍑昏呬簨鍏堝叆渚典簡澶ч噺鏈嶅姟鍣紝騫跺湪榪欎簺鏈嶅姟鍣ㄤ笂妞嶅叆浜咲DOS鏀誨嚮紼嬪簭錛岀劧鍚庣粨鍚堣繖浜涜鍏ヤ鏡鐨勬湇鍔″櫒鐨勭綉緇滀紶杈撳姏閲忓彂鍔ㄦ敾鍑匯傚埄鐢ㄥぇ閲忕殑鏈嶅姟鍣ㄥ彂鍔ㄦ敾鍑諱笉浠呭鍔犱簡鏀誨嚮鐨勫姏搴︼紝鑰屼笖鏇撮毦浜庨槻鑼冦?/p>

鍒╃敤鍙嶅脊鎶鏈繘琛孌DoS鏀誨嚮鐨勫垎鏋愪笌闃插盡1

鍥句竴鏄劇ず浜嗕互寰DDOS鏀誨嚮鐨勭粨鏋勶細涓涓富鏈猴紝涓繪湇鍔″櫒錛圡aster錛夛紝浣滅敤鏄彂閫佹帶鍒舵秷鎭粰浜嬪厛鍏ヤ鏡騫跺凡妞嶅叆DDOS紼嬪簭鐨勪粠鏈嶅姟鍣ㄧ兢 錛圫lave錛夛紝鎺у埗浠庢湇鍔″櫒緹ゅ彂璧峰鐩爣鏈嶅姟鍣ㄧ殑鏀誨嚮銆備粠鏈嶅姟鍣ㄧ兢灝嗕駭鐢熼珮瀹歸噺鐨勬簮鍦板潃涓轟吉閫犵殑鎴栭殢鏈虹殑緗戠粶鏁版嵁嫻侊紝騫舵妸榪欎簺鏁版嵁嫻佸彂閫佺粰鐩爣鏈嶅姟鍣ㄣ? 鍥犱負鏁版嵁嫻佺殑婧愬湴鍧鏄吉閫犵殑錛屽鍔犱簡榪芥煡鐨勯毦搴︺?


銆銆鍒╃敤鎴愮櫨涓婂崈鐨勪粠鏈嶅姟鍣ㄤ笉浠呭彲浠ュ彟榪芥煡鐨勯毦搴﹀姞澶э紙鍥犱負闅句互璇嗗埆澶ч噺涓嶅悓鐨勬潵婧愶紝闇瑕佹煡璇㈠ぇ閲忕殑璺敱鍣級錛岃屼笖鏋佸ぇ鐨勯樆紕嶄簡褰撴垚鍔熻拷鏌ュ悗鎵闇閲囧彇鐨勮鍔紙鍥犱負榪欒涓庡ぇ閲忕殑緗戠粶綆$悊鍛樿仈緋伙紝瀹夎澶ч噺鐨勭綉緇滆繃婊ゅ櫒錛夈?/p>

鍒╃敤鍙嶅脊鎶鏈繘琛孌DoS鏀誨嚮鐨勫垎鏋愪笌闃插盡2

鑰屼粖鑰冭檻鍛ㄥ瘑鐨勬敾鍑昏呭彲浠ラ氳繃鍒╃敤鍙嶅脊鏈嶅姟鍣紙Reflector錛夛紝鏇村ソ鐨勭粍緇囦粬浠殑鏀誨嚮銆傚弽寮規湇鍔″櫒鏄寚錛屽綋鏀跺埌涓涓姹傛暟鎹姤鍚庡氨浼氫駭鐢熶竴涓洖搴? 鏁版嵁鎶ョ殑涓繪満銆備緥濡傦紝鎵鏈夌殑WEB鏈嶅姟鍣紝DNS鏈嶅姟鍣紝鍙婅礬鐢卞櫒閮芥槸鍙嶅脊鏈嶅姟鍣紝鍥犱負浠栦滑浼氬SYN鎶ユ枃鎴栧叾浠朤CP鎶ユ枃鍥炲簲SYN ACKs鎴朢ST鎶ユ枃錛屼互鍙婂涓浜汭P鎶ユ枃鍥炲簲ICMP鏁版嵁鎶ヨ秴鏃舵垨鐩殑鍦頒笉鍙揪娑堟伅鐨勬暟鎹姤銆傝屾敾鍑昏呭彲浠ュ埄鐢ㄨ繖浜涘洖搴旂殑鏁版嵁鎶ュ鐩爣鏈嶅姟鍣ㄥ彂鍔? DDOS鏀誨嚮銆?


銆銆鏀誨嚮鑰呴鍏堥攣瀹氬ぇ閲忕殑鍙互鍋氫負鍙嶅脊 鏈嶅姟鍣ㄧ殑鏈嶅姟鍣ㄧ兢錛屾瘮濡傝100涓囧彴錛堣繖騫朵笉鏄歡寰堥毦鐨勫伐浣滐紝鍥犱負鍦↖nternet涓婂厜鏄疻EB鏈嶅姟鍣ㄥ氨涓嶆榪欎箞澶氱殑錛屾洿浣曞喌榪樻湁鏇村鍏朵粬鐨勬満鍣ㄥ彲浠ヤ綔 涓哄弽寮規湇鍔″櫒錛夈傜劧鍚庢敾鍑昏呬滑闆嗕腑浜嬪厛鎼炲畾鐨勪粠鏈嶅姟鍣ㄧ兢錛屽悜宸查攣瀹氱殑鍙嶅脊鏈嶅姟鍣ㄧ兢鍙戦佸ぇ閲忕殑嬈洪獥璇鋒眰鏁版嵁鍖咃紙鏉ユ簮鍦板潃涓簐ictim錛屽彈瀹蟲湇鍔″櫒鎴栫洰鏍囨湇 鍔″櫒錛夈傚弽寮規湇鍔″櫒灝嗗悜鍙楀鏈嶅姟鍣ㄥ彂閫佸洖搴旀暟鎹姤銆傜粨鏋滄槸錛氬埌杈懼彈瀹蟲湇鍔″櫒鐨勬椽姘存暟鎹姤涓嶆槸鍑犵櫨涓紝鍑犲崈涓殑鏉ユ簮錛岃屾槸涓婄櫨涓囦釜鏉ユ簮錛屾潵婧愬姝ゅ垎鏁g殑媧按 嫻侀噺灝嗗牭濉炰換浣曞叾浠栫殑浼佸浘瀵瑰彈瀹蟲湇鍔″櫒鐨勮繛鎺ャ?/p>

銆銆鍥句簩鏄劇ず浜嗗埄鐢? 鍙嶅脊榪涜DDOS鏀誨嚮鐨勭粨鏋勩傛敞鎰忓埌錛屽彈瀹蟲湇鍔″櫒涓嶉渶瑕佽拷鏌ユ敾鍑葷殑鏉ユ簮錛屽洜涓烘墍鏈夋敾鍑繪暟鎹姤鐨勬簮IP閮芥槸鐪熷疄鐨勶紝閮芥槸鍙嶅脊鏈嶅姟鍣ㄧ兢鐨処P銆傝屽彟涓鏂歸潰錛屽弽 寮規湇鍔″櫒鐨勭鐞嗕漢鍛樺垯闅句互榪芥煡鍒頒粠鏈嶅姟鍣ㄧ殑浣嶇疆錛屽洜涓轟粬鎵鏀跺埌鐨勬暟鎹姤閮芥槸浼犵殑錛堟簮IP涓哄彈瀹蟲湇鍔″櫒鐨処P錛夈?/p>

鍘熷垯涓婏紝鎴戜滑鍙互鍦ㄥ弽寮規湇鍔″櫒涓婂埄鐢ㄨ拷韙妧鏈潵鍙戠幇浠庢湇鍔″櫒鐨勭殑浣嶇疆銆備絾鏄紝鍙嶅脊鏈嶅姟鍣ㄤ笂鍙戦佹暟鎹姤鐨勬祦閲忚繙灝忎簬浠庢湇鍔″櫒鍙戦佺殑嫻侀噺銆傛瘡涓涓粠鏈嶅姟鍣ㄥ彲 浠ユ妸瀹冨彂閫佺殑緗戠粶嫻侀噺鍒嗘暎鍒版墍鏈夋垨鑰呬竴澶ч儴鍒嗗弽寮規湇鍔″櫒銆備緥濡傦細濡傛灉榪欓噷鏈塏r 涓弽寮規湇鍔″櫒錛孨s 涓粠鏈嶅姟鍣紝姣忎釜浠庢湇鍔″櫒鍙戦佺殑緗戠粶嫻侀噺涓篎錛岄偅涔堟瘡涓涓弽寮規湇鍔″櫒灝嗕駭鐢熺殑緗戠粶嫻侀噺涓?/p>

鍒╃敤鍙嶅脊鎶鏈繘琛孌DoS鏀誨嚮鐨勫垎鏋愪笌闃插盡3


銆銆鑰孨r 榪滃ぇ浜嶯s 銆傛墍浠ワ紝鏈嶅姟鍣ㄦ牴鎹綉緇滄祦閲忔潵鑷姩媯嫻嬫槸鍚︽槸DDOS鏀誨嚮婧愮殑榪欑鏈哄埗灝嗕笉璧蜂綔鐢ㄣ?/p>

鍊煎緱娉ㄦ剰鐨勬槸錛屼笉璞′互寰DDOS鏀誨嚮錛屽埄鐢ㄥ弽寮規妧鏈紝鏀誨嚮鑰呬笉闇瑕佹妸鏈嶅姟鍣ㄥ仛涓虹綉緇滄祦閲忕殑鏀懼ぇ鍣紙鍙戦佹瘮鏀誨嚮鑰呭彂閫佺殑鏇村ぇ瀹歸噺鐨勭綉緇滄暟鎹級銆備粬浠敋鑷沖彲 浠ヤ嬌媧按嫻侀噺鍙樺急錛屾渶緇堟墠鍦ㄧ洰鏍囨湇鍔″櫒鍥炲悎涓哄ぇ瀹歸噺鐨勬椽姘淬傝繖鏍風殑鏈哄埗璁╂敾鍑昏呭彲浠ュ埄鐢ㄤ笉鍚岀綉緇滅粨鏋勬満鍒剁殑鏈嶅姟鍣ㄤ綔涓哄弽寮規湇鍔″櫒錛屼嬌鍏舵洿瀹規槗鎵懼埌瓚沖鏁伴噺 鐨勫弽寮規湇鍔″櫒錛岀敤浠ュ彂璧鋒敾鍑匯?/p>

銆銆鎴戜滑鐨勫垎鏋愭樉紺猴紝鏈変笁縐嶇壒鍒叿濞佽儊鎬х殑鍙嶅脊鏈嶅姟鍣ㄦ槸錛欴NS鏈嶅姟鍣ㄣ丟nutella鏈嶅姟鍣ㄣ佸拰鍩轟簬TCP-IP鐨勬湇鍔″櫒錛堢壒鍒槸WEB 鏈嶅姟鍣級錛屽熀浜嶵CP鐨勫疄鐜板皢閬彈鍙嫻嬪垵濮嬪簭鍒楀彿鐨勫▉鑳併?/p>
from:
http://www.searchsecurity.com.cn/showcontent_29184.htm



chatler 2010-01-22 18:08 鍙戣〃璇勮
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Suse闃茬伀澧欎慨鏀圭鍙?/title><link>http://www.shnenglu.com/beautykingdom/archive/2009/12/25/104032.html</link><dc:creator>chatler</dc:creator><author>chatler</author><pubDate>Fri, 25 Dec 2009 03:33:00 GMT</pubDate><guid>http://www.shnenglu.com/beautykingdom/archive/2009/12/25/104032.html</guid><wfw:comment>http://www.shnenglu.com/beautykingdom/comments/104032.html</wfw:comment><comments>http://www.shnenglu.com/beautykingdom/archive/2009/12/25/104032.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.shnenglu.com/beautykingdom/comments/commentRss/104032.html</wfw:commentRss><trackback:ping>http://www.shnenglu.com/beautykingdom/services/trackbacks/104032.html</trackback:ping><description><![CDATA[<div class="pvfhvhl" id=fileContent>鎵嬪姩淇敼錛?br>#vi /etc/sysconfig/SuSEfirewall2<br><br>#TCP绔彛鐨勬儏鍐碉細<br>FW_SERVICES_EXT_TCP = "6000"<br>#UDP绔彛鐨勬儏鍐碉細<br>FW_SERVICES_EXT_UDP = "177"<br>闃茬伀澧欒緗殑鐢熸晥錛?br>#rcSuSEfirewall2 restart</div> <img src ="http://www.shnenglu.com/beautykingdom/aggbug/104032.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.shnenglu.com/beautykingdom/" target="_blank">chatler</a> 2009-12-25 11:33 <a href="http://www.shnenglu.com/beautykingdom/archive/2009/12/25/104032.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>DOS鏀誨嚮鍘熺悊鍙婃柟娉曚粙緇?/title><link>http://www.shnenglu.com/beautykingdom/archive/2009/12/20/103595.html</link><dc:creator>chatler</dc:creator><author>chatler</author><pubDate>Sun, 20 Dec 2009 14:57:00 GMT</pubDate><guid>http://www.shnenglu.com/beautykingdom/archive/2009/12/20/103595.html</guid><wfw:comment>http://www.shnenglu.com/beautykingdom/comments/103595.html</wfw:comment><comments>http://www.shnenglu.com/beautykingdom/archive/2009/12/20/103595.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.shnenglu.com/beautykingdom/comments/commentRss/103595.html</wfw:commentRss><trackback:ping>http://www.shnenglu.com/beautykingdom/services/trackbacks/103595.html</trackback:ping><description><![CDATA[宸茬粡鏈夊緢澶氫粙緇岲OS錛圖enial of Service錛屽嵆鎷掔粷鏈嶅姟錛夋敾鍑葷殑鏂囩珷錛屼絾鏄紝澶氭暟浜鴻繕鏄笉鐭ラ亾DOS鍒板簳鏄粈涔堬紝瀹冨埌搴曟槸鎬庝箞瀹炵幇鐨勩傛湰鏂囦富瑕佷粙緇岲OS鐨勬満鐞嗗拰甯歌鐨勫疄鏂芥柟娉曘傚洜鍓嶆鏃墮棿浠旂粏浜嗚В浜員CP/IP鍗忚浠ュ強RFC鏂囨。錛屾湁鐐瑰績寰椼傚悓鏃訛紝鏂囦腑鏈夐儴鍒嗗唴瀹瑰弬鑰冧簡Shaft鐨勬枃绔犵炕璇戣屽緱<br>銆傝鎯充簡瑙OS鏀誨嚮寰楀疄鐜版満鐞嗭紝蹇呴』瀵筎CP鏈変竴瀹氱殑浜嗚В銆傛墍浠ワ紝鏈枃鍒嗕負涓ら儴鍒嗭紝絎竴閮ㄥ垎浠嬬粛涓<br>浜涘疄鐜癉OS鏀誨嚮鐩稿叧鐨勫崗璁紝絎簩閮ㄥ垎鍒欎粙緇岲OS鐨勫父瑙佹柟寮忋?br><br>1銆?浠涔堟槸DOS鏀誨嚮<br>DOS錛氬嵆Denial Of Service錛屾嫆緇濇湇鍔$殑緙╁啓錛屽彲涓嶈兘璁や負鏄井杞殑dos鎿嶄綔緋葷粺浜嗐傚ソ璞″湪5·1鐨勬椂鍊欓椆榪囪繖鏍風殑絎戣瘽銆傛嫆緇濇湇鍔★紝灝辯浉褰撲簬蹇呰儨瀹㈠湪瀹㈡弧鐨勬椂鍊欎笉鍐嶈浜鴻繘鍘諱竴鏍鳳紝鍛靛懙錛屼綘鎯沖悆棣呴ゼ錛屽氨蹇呴』鍦ㄩ棬鍙g瓑鍚с侱OS鏀誨嚮鍗蟲敾鍑昏呮兂鍔炴硶璁╃洰鏍囨満鍣ㄥ仠姝㈡彁渚涙湇鍔℃垨璧勬簮璁塊棶錛岃繖浜涜祫婧愬寘鎷鐩樼┖闂淬佸唴瀛樸佽繘紼嬬敋鑷崇綉緇滃甫瀹斤紝浠庤岄樆姝㈡甯哥敤鎴風殑璁塊棶銆傛瘮濡傦細<br>* 璇曞浘FLOOD鏈嶅姟鍣紝闃繪鍚堟硶鐨勭綉緇滈?br>* 鐮村潖涓や釜鏈哄櫒闂寸殑榪炴帴錛岄樆姝㈣闂湇鍔?br>* 闃繪鐗規畩鐢ㄦ埛璁塊棶鏈嶅姟<br>* 鐮村潖鏈嶅姟鍣ㄧ殑鏈嶅姟鎴栬呭鑷存湇鍔″櫒姝繪満<br>涓嶈繃錛屽彧鏈夐偅浜涙瘮杈冮槾闄╃殑鏀誨嚮鑰呮墠鍗曠嫭浣跨敤DOS鏀誨嚮錛岀牬鍧忔湇鍔″櫒銆傞氬父錛孌OS鏀誨嚮浼氳浣滀負涓嬈″叆渚電殑涓閮ㄥ垎錛屾瘮濡傦紝緇曡繃鍏ヤ鏡媯嫻嬬郴緇熺殑鏃跺欙紝閫氬父浠庣敤澶ч噺鐨勬敾鍑誨嚭鍙戯紝瀵艱嚧鍏ヤ鏡媯嫻嬬郴緇熸棩蹇楄繃澶氭垨鑰呭弽搴旇繜閽濓紝榪欐牱錛屽叆渚佃呭氨鍙互鍦ㄦ疆姘磋埇鐨勬敾鍑諱腑娣烽獥榪囧叆渚墊嫻嬬郴緇熴?br><br>2銆佹湁鍏砊CP鍗忚鐨勪笢瑗?br>TCP錛坱ransmission control protocol錛屼紶杈撴帶鍒跺崗璁級錛屾槸鐢ㄦ潵鍦ㄤ笉鍙潬鐨勫洜鐗圭綉涓婃彁渚涘彲闈犵殑銆佺鍒扮鐨勫瓧鑺傛祦閫氳鍗忚錛屽湪RFC793涓湁姝e紡瀹氫箟錛岃繕鏈変竴浜涜В鍐抽敊璇殑涓滆タ鍦≧FC 1122涓湁璁板綍錛孯FC 1323鍒欐湁TCP鐨勫姛鑳芥墿灞曘?br><br>鎴戜滑甯歌鍒扮殑TCP/IP鍗忚涓紝IP灞備笉淇濊瘉灝嗘暟鎹姤姝g‘浼犻佸埌鐩殑鍦幫紝TCP鍒欎粠鏈湴鏈哄櫒鎺ュ彈鐢ㄦ埛鐨勬暟鎹祦錛屽皢鍏跺垎鎴愪笉瓚呰繃64K瀛楄妭鐨勬暟鎹墖孌碉紝灝嗘瘡涓暟鎹墖孌典綔涓哄崟鐙殑IP鏁版嵁鍖呭彂閫佸嚭鍘伙紝鏈鍚庡湪鐩殑鍦版満鍣ㄤ腑鍐嶇粍鍚堟垚瀹屾暣鐨勫瓧鑺傛祦錛孴CP鍗忚蹇呴』淇濊瘉鍙潬鎬с?br><br>鍙戦佸拰鎺ユ敹鏂圭殑TCP浼犺緭浠ユ暟鎹鐨勫艦寮忎氦鎹㈡暟鎹紝涓涓暟鎹鍖呮嫭涓涓浐瀹氱殑20瀛楄妭澶達紝鍔犱笂鍙夐儴鍒嗭紝鍚庨潰鍐嶈窡涓婃暟鎹紝TCP鍗忚浠庡彂閫佹柟浼犻佷竴涓暟鎹鐨勬椂鍊欙紝榪樿鍚姩璁℃椂鍣紝褰撴暟鎹鍒拌揪鐩殑鍦板悗錛屾帴鏀舵柟榪樿鍙戦佸洖涓涓暟鎹錛屽叾涓湁涓涓‘璁ゅ簭鍙鳳紝瀹冪瓑浜庡笇鏈涙敹鍒扮殑涓嬩竴涓暟鎹鐨勯『搴忓彿錛屽鏋滆鏃跺櫒鍦ㄧ‘璁や俊鎭埌杈懼墠瓚呮椂浜嗭紝鍙戦佹柟浼氶噸鏂板彂閫佽繖涓暟鎹銆?br><br>涓婇潰錛屾垜浠諱綋涓婁簡瑙d竴鐐筎CP鍗忚錛岄噸瑕佺殑鏄鐔熸倝TCP鐨勬暟鎹ご錛坔eader錛夈傚洜涓烘暟鎹祦鐨勪紶杈撴渶閲嶈鐨勫氨鏄痟eader閲岄潰鐨勪笢瑗匡紝鑷充簬鍙戦佺殑鏁版嵁錛屽彧鏄痟eader闄勫甫涓婄殑銆傚鎴風鍜屾湇鍔$鐨勬湇鍔″搷搴斿氨鏄悓header閲岄潰鐨勬暟鎹浉鍏籌紝涓ょ鐨勪俊鎭氦嫻佸拰浜ゆ崲鏄牴鎹甴eader涓殑鍐呭瀹炴柦鐨勶紝鍥犳錛岃瀹炵幇DOS錛屽氨蹇呴』瀵筯eader涓殑鍐呭闈炲父鐔熸倝銆?br><br>涓嬮潰鏄疶CP鏁版嵁孌靛ご鏍煎紡銆?br>Source Port鍜?Destination Port :鏄湰鍦扮鍙e拰鐩爣绔彛<br>Sequence Number 鍜?Acknowledgment Number 錛氭槸欏哄簭鍙峰拰紜鍙鳳紝紜鍙鋒槸甯屾湜鎺ユ敹鐨勫瓧鑺傚彿銆傝繖閮芥槸32浣嶇殑錛屽湪TCP嫻佷腑錛屾瘡涓暟鎹瓧鑺傞兘琚紪鍙楓侱ata offset :琛ㄦ槑TCP澶村寘鍚灝戜釜32浣嶅瓧錛岀敤鏉ョ‘瀹氬ご鐨勯暱搴︼紝鍥犱負澶翠腑鍙夊瓧孌甸暱搴︽槸涓嶅畾鐨勩俁eserved : 淇濈暀鐨?浣嶏紝鐜板湪娌$敤錛岄兘鏄?<br>鎺ヤ笅鏉ユ槸6涓?浣嶇殑鏍囧織錛岃繖鏄袱涓綆楁満鏁版嵁浜ゆ祦鐨勪俊鎭爣蹇椼傛帴鏀跺拰鍙戦佹柇鏍規嵁榪欎簺鏍囧織鏉ョ‘瀹氫俊鎭祦鐨勭綾匯備笅闈㈡槸涓浜涗粙緇嶏細 URG錛氾紙Urgent Pointer field significant錛夌揣鎬ユ寚閽堛傜敤鍒扮殑鏃跺欏間負1錛岀敤鏉ュ鐞嗛伩鍏峊CP鏁版嵁嫻佷腑鏂瑼CK錛氾紙Acknowledgment field significant錛夌疆1鏃惰〃紺虹‘璁ゅ彿錛圓cknowledgment Number錛変負鍚堟硶錛屼負0鐨勬椂鍊欒〃紺烘暟鎹涓嶅寘鍚‘璁や俊鎭紝紜鍙瘋蹇界暐銆?br>PSH錛氾紙Push Function錛夛紝PUSH鏍囧織鐨勬暟鎹紝緗?鏃惰姹傜殑鏁版嵁孌靛湪鎺ユ敹鏂瑰緱鍒板悗灝卞彲鐩存帴閫佸埌搴旂敤紼嬪簭錛岃屼笉蹇呯瓑鍒扮紦鍐插尯婊℃椂鎵嶄紶閫併?br>RST錛氾紙Reset the connection錛夌敤浜庡浣嶅洜鏌愮鍘熷洜寮曡搗鍑虹幇鐨勯敊璇繛鎺ワ紝涔熺敤鏉ユ嫆緇濋潪娉曟暟鎹拰璇鋒眰銆傚鏋?br>鎺ユ敹鍒癛ST浣嶆椂鍊欙紝閫氬父鍙戠敓浜嗘煇浜涢敊璇?br>SYN錛氾紙Synchronize sequence numbers錛夌敤鏉ュ緩绔嬭繛鎺ワ紝鍦ㄨ繛鎺ヨ姹備腑錛孲YN=1錛孋K=0錛岃繛鎺ュ搷搴旀椂錛孲YN=1錛?br>ACK=1銆傚嵆錛孲YN鍜孉CK鏉ュ尯鍒咰onnection Request鍜孋onnection Accepted銆?br>FIN錛氾紙No more data from sender錛夌敤鏉ラ噴鏀捐繛鎺ワ紝琛ㄦ槑鍙戦佹柟宸茬粡娌℃湁鏁版嵁鍙戦併?br><br>鐭ラ亾榪欓噸瑕佺殑6涓寚紺烘爣蹇楀悗錛屾垜浠戶緇潵銆?br>16浣嶇殑WINDOW瀛楁錛氳〃紺虹‘璁や簡瀛楄妭鍚庤繕鍙互鍙戦佸灝戝瓧鑺傘傚彲浠ヤ負0錛岃〃紺哄凡緇忔敹鍒板寘鎷‘璁ゅ彿鍑?錛堝嵆宸插彂閫佹墍鏈夋暟鎹級<br>鍦ㄥ唴鐨勬墍鏈夋暟鎹銆?br>鎺ヤ笅鏉ユ槸16浣嶇殑Checksum瀛楁錛岀敤鏉ョ‘淇濆彲闈犳х殑銆?br>16浣嶇殑Urgent Pointer錛屽拰涓嬮潰鐨勫瓧孌墊垜浠繖閲屼笉瑙i噴浜嗐備笉鐒跺お澶氫簡銆傚懙鍛碉紝鍋鋒噿鍟娿?br><br>鎴戜滑榪涘叆姣旇緝閲嶈鐨勪竴閮ㄥ垎錛歍CP榪炴帴鎻℃墜榪囩▼銆傝繖涓繃紼嬬畝鍗曞湴鍒嗕負涓夋銆傚湪娌℃湁榪炴帴涓紝鎺ュ彈鏂癸紙鎴戜滑閽堝鏈嶅姟鍣級錛屾湇鍔″櫒澶勪簬LISTEN鐘舵侊紝絳夊緟鍏朵粬鏈哄櫒鍙戦佽繛鎺ヨ姹傘?br>絎竴姝ワ細瀹㈡埛绔彂閫佷竴涓甫SYN浣嶇殑璇鋒眰錛屽悜鏈嶅姟鍣ㄨ〃紺洪渶瑕佽繛鎺ワ紝姣斿鍙戦佸寘鍋囪璇鋒眰搴忓彿涓?0錛岄偅涔堝垯涓猴細SYN=10錛孉CK=0錛岀劧鍚庣瓑寰呮湇鍔″櫒鐨勫搷搴斻?br>絎簩姝ワ細鏈嶅姟鍣ㄦ帴鏀跺埌榪欐牱鐨勮姹傚悗錛屾煡鐪嬫槸鍚﹀湪LISTEN鐨勬槸鎸囧畾鐨勭鍙o紝涓嶇劧錛屽氨鍙戦丷ST=1搴旂瓟錛屾嫆緇濆緩绔嬭繛鎺ャ傚鏋滄帴鏀惰繛鎺ワ紝閭d箞鏈嶅姟鍣ㄥ彂閫佺‘璁わ紝SYN涓烘湇鍔″櫒鐨勪竴涓唴鐮侊紝鍋囪涓?00錛孉CK浣嶅垯鏄鎴風鐨勮姹傚簭鍙峰姞1錛屾湰渚嬩腑鍙戦佺殑鏁版嵁鏄細SYN=100錛孉CK=11錛岀敤榪欐牱鐨勬暟鎹彂閫佺粰瀹㈡埛绔傚悜瀹㈡埛绔〃紺猴紝鏈嶅姟鍣ㄨ繛鎺ュ凡緇忓噯澶囧ソ浜嗭紝絳夊緟瀹㈡埛绔殑紜榪欐椂瀹㈡埛绔帴鏀跺埌娑堟伅鍚庯紝鍒嗘瀽寰楀埌鐨勪俊鎭紝鍑嗗鍙戦佺‘璁よ繛鎺ヤ俊鍙峰埌鏈嶅姟鍣?br>絎笁姝ワ細瀹㈡埛绔彂閫佺‘璁ゅ緩绔嬭繛鎺ョ殑娑堟伅緇欐湇鍔″櫒銆傜‘璁や俊鎭殑SYN浣嶆槸鏈嶅姟鍣ㄥ彂閫佺殑ACK浣嶏紝ACK浣嶆槸鏈嶅姟鍣ㄥ彂閫佺殑SYN浣嶅姞1銆傚嵆錛歋YN=11錛孉CK=101銆?br>榪欐椂錛岃繛鎺ュ凡緇忓緩绔嬭搗鏉ヤ簡銆傜劧鍚庡彂閫佹暟鎹紝<SYN=11錛孉CK=101><DATA>銆傝繖鏄竴涓熀鏈殑璇鋒眰鍜岃繛鎺ヨ繃紼嬨傞渶瑕佹敞鎰忕殑鏄繖浜涙爣蹇椾綅鐨勫叧緋伙紝姣斿SYN銆丄CK銆?br><br>3銆佹湇鍔″櫒鐨勭紦鍐插尯闃熷垪錛圔acklog Queue錛?br>鏈嶅姟鍣ㄤ笉浼氬湪姣忔鎺ユ敹鍒癝YN璇鋒眰灝辯珛鍒誨悓瀹㈡埛绔緩绔嬭繛鎺ワ紝鑰屾槸涓鴻繛鎺ヨ姹傚垎閰嶅唴瀛樼┖闂達紝寤虹珛浼氳瘽錛屽茍鏀懼埌涓涓瓑寰呴槦鍒椾腑銆傚鏋滐紝榪欎釜絳夊緟鐨勯槦鍒楀凡緇忔弧浜嗭紝閭d箞錛屾湇鍔″櫒灝變笉鍦ㄤ負鏂扮殑榪炴帴鍒嗛厤浠諱綍涓滆タ錛岀洿鎺ヤ涪寮冩柊鐨勮姹傘傚鏋滃埌浜嗚繖鏍風殑鍦版錛屾湇鍔″櫒灝辨槸鎷掔粷鏈嶅姟浜嗐?br>濡傛灉鏈嶅姟鍣ㄦ帴鏀跺埌涓涓猂ST浣嶄俊鎭紝閭d箞灝辮涓鴻繖鏄竴涓湁閿欒鐨勬暟鎹錛屼細鏍規嵁瀹㈡埛绔疘P錛屾妸榪欐牱鐨勮繛鎺ュ湪緙撳啿鍖洪槦鍒椾腑娓呴櫎鎺夈傝繖瀵笽P嬈洪獥鏈夊獎鍝嶏紝涔熻兘琚埄鐢ㄦ潵鍋欴OS鏀誨嚮銆?br><br>####################################################################<br><br>涓婇潰鐨勪粙緇嶏紝鎴戜滑浜嗚ВTCP鍗忚錛屼互鍙婅繛鎺ヨ繃紼嬨傝瀵筍ERVER瀹炴柦鎷掔粷鏈嶅姟鏀誨嚮錛屽疄璐ㄤ笂鐨勬柟寮忓氨鏄湁涓や釜錛?br>涓錛?榪嬌鏈嶅姟鍣ㄧ殑緙撳啿鍖烘弧錛屼笉鎺ユ敹鏂扮殑璇鋒眰銆?br>浜岋紝 浣跨敤IP嬈洪獥錛岃揩浣挎湇鍔″櫒鎶婂悎娉曠敤鎴風殑榪炴帴澶嶄綅錛屽獎鍝嶅悎娉曠敤鎴風殑榪炴帴<br>榪欏氨鏄疍OS鏀誨嚮瀹炴柦鐨勫熀鏈濇兂銆傚叿浣撳疄鐜版湁榪欐牱鐨勬柟娉曪細<br><br>1銆丼YN FLOOD<br>鍒╃敤鏈嶅姟鍣ㄧ殑榪炴帴緙撳啿鍖猴紙Backlog Queue錛夛紝鍒╃敤鐗規畩鐨勭▼搴忥紝璁劇疆TCP鐨凥eader錛屽悜鏈嶅姟鍣ㄧ涓嶆柇鍦版垚鍊嶅彂閫佸彧鏈塖YN鏍囧織鐨凾CP榪炴帴璇鋒眰銆傚綋鏈嶅姟鍣ㄦ帴鏀剁殑鏃跺欙紝閮借涓烘槸娌℃湁寤虹珛璧鋒潵鐨勮繛鎺ヨ姹傦紝浜庢槸涓鴻繖浜涜姹傚緩绔嬩細璇濓紝鎺掑埌緙撳啿鍖洪槦鍒椾腑銆?br>濡傛灉浣犵殑SYN璇鋒眰瓚呰繃浜嗘湇鍔″櫒鑳藉綰崇殑闄愬害錛岀紦鍐插尯闃熷垪婊★紝閭d箞鏈嶅姟鍣ㄥ氨涓嶅啀鎺ユ敹鏂扮殑璇鋒眰浜嗐傚叾浠栧悎娉曠敤鎴風殑榪炴帴閮借鎷掔粷鎺夈傚彲浠ユ寔緇綘鐨凷YN璇鋒眰鍙戦侊紝鐩村埌緙撳啿鍖轟腑閮芥槸浣犵殑鍙湁SYN鏍囪鐨勮姹傘傜幇鍦ㄦ湁寰堝瀹炴柦SYN FLOOD鐨勫伐鍏鳳紝鍛靛懙錛岃嚜宸辨壘鍘誨惂銆?br><br>2銆両P嬈洪獥DOS鏀誨嚮<br>榪欑鏀誨嚮鍒╃敤RST浣嶆潵瀹炵幇銆傚亣璁劇幇鍦ㄦ湁涓涓悎娉曠敤鎴?1.1.1.1)宸茬粡鍚屾湇鍔″櫒寤虹珛浜嗘甯哥殑榪炴帴錛屾敾鍑昏呮瀯閫犳敾鍑葷殑TCP鏁版嵁錛屼吉瑁呰嚜宸辯殑IP涓?.1.1.1錛屽茍鍚戞湇鍔″櫒鍙戦佷竴涓甫鏈塕ST浣嶇殑TCP鏁版嵁孌點傛湇鍔″櫒鎺ユ敹鍒拌繖鏍風殑鏁版嵁鍚庯紝璁や負浠?.1.1.1鍙戦佺殑榪炴帴鏈夐敊璇紝灝變細娓呯┖緙撳啿鍖轟腑寤虹珛濂界殑榪炴帴銆傝繖鏃訛紝濡傛灉鍚堟硶鐢ㄦ埛1.1.1.1鍐嶅彂閫佸悎娉曟暟鎹紝鏈嶅姟鍣ㄥ氨宸茬粡娌℃湁榪欐牱鐨勮繛鎺ヤ簡錛岃鐢ㄦ埛灝卞繀<br>欏諱粠鏂板紑濮嬪緩绔嬭繛鎺ャ傛敾鍑繪椂錛屼吉閫犲ぇ閲忕殑IP鍦板潃錛屽悜鐩爣鍙戦丷ST鏁版嵁錛屼嬌鏈嶅姟鍣ㄤ笉瀵瑰悎娉曠敤鎴鋒湇鍔°?br><br>3銆?甯﹀DOS鏀誨嚮<br>濡傛灉浣犵殑榪炴帴甯﹀瓚沖澶ц屾湇鍔″櫒鍙堜笉鏄緢澶э紝浣犲彲浠ュ彂閫佽姹傦紝鏉ユ秷鑰楁湇鍔″櫒鐨勭紦鍐插尯娑堣楁湇鍔″櫒鐨勫甫瀹姐傝繖縐嶆敾鍑誨氨鏄漢澶氬姏閲忓ぇ浜嗭紝閰嶅悎涓奡YN涓璧峰疄鏂紻OS錛屽▉鍔涘法澶с備笉榪囨槸鍒濈駭DOS鏀誨嚮銆傚懙鍛點侾ing鐧藉錛燂紵浣犲彂鐤簡鍟婏紒<br><br><br>4銆佽嚜韜秷鑰楃殑DOS鏀誨嚮<br>榪欐槸涓縐嶈佸紡鐨勬敾鍑繪墜娉曘傝鑰佸紡錛屾槸鍥犱負鑰佸紡鐨勭郴緇熸湁榪欐牱鐨勮嚜韜獴UG銆傛瘮濡俉in95 (winsock v1), Cisco IOS v.10.x, 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="http://www.shnenglu.com/beautykingdom/aggbug/103595.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.shnenglu.com/beautykingdom/" target="_blank">chatler</a> 2009-12-20 22:57 <a href="http://www.shnenglu.com/beautykingdom/archive/2009/12/20/103595.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item></channel></rss> <footer> <div class="friendship-link"> <p>感谢您访问我们的网站,您可能还对以下资源感兴趣:</p> <a href="http://www.shnenglu.com/" title="精品视频久久久久">精品视频久久久久</a> <div class="friend-links"> </div> </div> </footer> <a href="http://www.duxj.cn" target="_blank">久久免费视频1</a>| <a href="http://www.yingkounews.com.cn" target="_blank">99久久精品毛片免费播放</a>| <a href="http://www.tingzei.cn" target="_blank">99久久无码一区人妻</a>| <a href="http://www.zupy.cn" target="_blank">国产女人aaa级久久久级</a>| <a href="http://www.s88w.cn" target="_blank">一97日本道伊人久久综合影院</a>| <a href="http://www.baaag.cn" target="_blank">亚洲精品无码久久久</a>| 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