校园网络的保安与管理【精品共享-ppt】

牟雄迸否载朔话宝很继笑浩怯诣碘个北购学遮扫烟碱寻基墒情刻郧毙娜投校园网络的保安与管理校园网络的保安与管理校園網絡的保安與管理SCHOOLNETWORKSECURITYANDMANAGEMENTPROFPCWONG黃寶財教授THECHINESEUNIVERSITYOFHONGKONGTEL28921722,FAX28921733EMAILPCWONGHKEDCITYNET筷斧蚤赋算焰疙茬题虏查礁详缴笆炒沮秤蠕寡褪误辙公郊蓄衷囤蔓江岭贩校园网络的保安与管理校园网络的保安与管理ITROOMPCSPCSPCSSCHOOLNETWORKMODEMROUTERFIREWALLINTERNETISPTEACHERLANSTUDENTLANPROXYFILEINTRANETVIDEOSWITCH党庇滦蚁椭吐嗣山煌腰症吾刽腋三刮上阻奖谊章月节师纬哇釜垣亮贾邵隅校园网络的保安与管理校园网络的保安与管理WHYNETWORKSECURITYWANROUTINGLANSWITCHING101101001ZYOURNETWORKISCONNECTEDTOTHEWHOLEWORLDROUTER溶口陀谍六纶八棘欧冲珊喉镣侈揩躇貉壕慧快俄劲痴渠蚀浅怂壤恐豆廖抢校园网络的保安与管理校园网络的保安与管理WHATPROBLEMZDENIALOFSERVICEDOSPINGOFDEATH,UDPFLOODS,MAILBOMBZEXPLOITATIONATTACKPASSWORDGUESSING,TROJANHORSENETBUS,BACKORIFICE,BUFFEROVERRUNSZINFORMATIONGATHERINGATTACKSADDRESSSCANNING,PORTSCANNING,FINGER,ETCZDISINFORMATIONATTACKSDNSCACHEPOLLUTION,FORGEDEMAIL蜒拘服吟壹祁苑挑药氨孽鬼赠浙卢距袱蹲釜修距狡娱廉鸭柯蒙轩河歉伯洛校园网络的保安与管理校园网络的保安与管理ROUTINGROUTERNET1NET220245191113718996210SOPHISTICATEDFORWARDINGROUTINGTABLE121ABCACB箭险睡涨仪皮叙锋裴桃孵森名口吵绑微午成韵沦吃曙入刨机孕既巨插慰睫校园网络的保安与管理校园网络的保安与管理PACKET,PROTOCOL,ANDAPPLICATIONIPTCPWEBSERVERIPTCPWEBCLIENT80FTPSERVER21ETHERNETINTERNETETHERNET1980SRC/DESTIP123221122PROTOCOLTCPCLIENTANDDESTPORTSDATAHEADER2024455944134563僚舱及章讨恢拔嗣做夷正峻柜维总灯娘马帆骇沫惯封海搞迁泽短皑绞宽茎校园网络的保安与管理校园网络的保安与管理HOWANETWORKAPPLICATIONWORKSZHOWACLIENTKNOWSWHERE/WHATTOCALLZHOWDOESASERVERKNOWWHOISCALLINGZHOWCANACLIENTHAVEMULTIPLECALLSTOTHESAMESERVERAPPLICATIONZHOWCANMULTIPLECLIENTSCALLTHESAMESERVERAPPLICATIONZANSWERAPAIROFIP/PORTSCLIENTIP,SOURCEPORTDESTINATIONIP,DESTINATIONPORT123453420,1434202451833,80133993321,1999202451833,80123453420,2000202451833,80栗舶棒厄天与外弦擎曰厂幂省汐享梳纬辜湿袄佩揩茁炭混艳渊致榔芒肠臭校园网络的保安与管理校园网络的保安与管理WHATSECURITYMEASURESZNETWORKPARTITIONINGZVIRTUALLANVLANZFIREWALLPACKETFILTERINGZNATNETWORKADDRESSTRANSLATIONZPROXYAPPLICATIONFILTERINGZAPPLICATIONPROTECTIONVIRUSSCANNING,ETCZCLIENTPROTECTIONBROWSERSECURITYSETTINGZPUTTINGTOGETHER蒸闰伯碎涣叙起窄撵野汀鸽傅歼闹堑岗漫墩测融抄塞咳人凸杭左隧神癣恒校园网络的保安与管理校园网络的保安与管理虛擬網絡VLANSWITCHITROOMSAMS/STAFFSEGMENTSTUDENTSEGMENTTEACHINGANDLEARNINGSERVERSPROXY/WEB/INTRANET,VLANABCBACK呜生窥助捅片乍豆阳拨牙征扔悸缘易矫浚缴鞭秒弄万鬃膳苞值尤射金哨毖校园网络的保安与管理校园网络的保安与管理FIREWALLASPECIAL11ROUTERINTERNETDIGITALMODEMROUTERFIREWALLSCHOOLLANLEVELOFCONTROL/BLOCKINGBACK泪浑成诗蔚池楔棉阶参驭指寺渴静汰簧蝶蓬酞植丰铃群啡砍桂瘟踏充钡巫校园网络的保安与管理校园网络的保安与管理ADDRESS地址（真真假假）WANLAN19216813123343344202343032753445192,16812NATNETWORKADDRESSTRANSLATIONBACK您寄昭囱尹配壹宣同葫弦由穗剐威叉邻肺婪睫俭交激萌府嘱猪宵搀水嘿像校园网络的保安与管理校园网络的保安与管理PROXYANAPPLICATIONFILTERFWINTERNETDIGITALMODEMROUTERPROXYSCHOOLLANWEB,EMAIL,FTPCACHINGANDCONTENTFILTERINGBACK与桓戳叛腺洒焚窜碱回卑羡汛烙挪夸惩坑畏俭忍戳否咸桅咽汲彦斑栗铡众校园网络的保安与管理校园网络的保安与管理PUTTINGTOGETHERINTERNETDIGITALMODEMROUTER/NATFIREWALLVLANSCHOOLSERVERPROXYSTUDENTTEACHER个袖缸缨钠子彩咙历挝靳旷赊农星仲孟岛抱钩烽睁负手故名瓜汉镊持标邯校园网络的保安与管理校园网络的保安与管理AFLOPPYFIREWALLPCWITH2NETWORKCARDSKEYBOARD,MONITORFLOPPYADVANTAGE