陕西师范大学计算机网络MATCH_
word
word文档格式规范word作业纸小票打印word模板word简历模板免费word简历
_1714233841258_0WiresharkLab：DNS一nslookup1.RunnslookuptoobtaintheIPaddressofaWebserverinAsia.2.RunnslookuptodeterminetheauthoritativeDNSserversforauniversityinEurope.3.RunnslookupsothatoneoftheDNSserversobtainedinQuestion2isqueriedforthemailserversforYahoo!mail.二ipconfig三TracingDNSwithWireshark4.LocatetheDNSqueryandresponsemessages.AretheysentoverUDPorTCP?答：用的是UDP。5.WhatisthedestinationportfortheDNSquerymessage?WhatisthesourceportofDNSresponsemessage?答：6.TowhatIPaddressistheDNSquerymessagesent?UseipconfigtodeterminetheIPaddressofyourlocalDNSserver.ArethesetwoIPaddressesthesame?答：Destination:202.117.144..4(202.117.144.4)与用本地DNS服务器的IP地址相同。7.ExaminetheDNSquerymessage.What“Type”ofDNSqueryisit?Doesthequerymessagecontainany“answers”?答：TypeA，没有应答8.ExaminetheDNSresponsemessage.Howmany“answers”areprovided?Whatdoeseachoftheseanswerscontain?答：有一个应答。应答的
内容
财务内部控制制度的内容财务内部控制制度的内容人员招聘与配置的内容项目成本控制的内容消防安全演练内容
包括：Name、Type、Class、Timetolive、Data、Addr.9.ConsiderthesubsequentTCPSYNpacketsentbyyourhost.DoesthedestinationIPaddressoftheSYNpacketcorrespondtoanyoftheIPaddressesprovidedintheDNSresponsemessage?答：不一致10.Thiswebpagecontainsimages.Beforeretrievingeachimage,doesyourhostissuenewDNSqueries?答：没有。11.WhatisthedestinationportfortheDNSquerymessage?WhatisthesourceportofDNSresponsemessage?答：12.TowhatIPaddressistheDNSquerymessagesent?IsthistheIPaddressofyourdefaultlocalDNSserver?答：是13.ExaminetheDNSquerymessage.What“Type”ofDNSqueryisit?Doesthequerymessagecontainany“answers”?答：typeA；没有应答。14.ExaminetheDNSresponsemessage.Howmany“answers”areprovided?Whatdoeseachoftheseanswerscontain?答：有一个应答。应答的内容包括：Name、Type、Class、Timetolive、Data、Addr.15.Provideascreenshot.答：16.TowhatIPaddressistheDNSquerymessagesent?IsthistheIPaddressofyourdefaultlocalDNSserver?答：是17.ExaminetheDNSquerymessage.What“Type”ofDNSqueryisit?Doesthequerymessagecontainany“answers”?答：typeNS，没有回答18.ExaminetheDNSresponsemessage.WhatMITnameserversdoestheresponsemessageprovide?DoesthisresponsemessagealsoprovidetheIPaddressesoftheMITnameservers?答：3个MIT名字服务器，没有提供IP地址。19.Provideascreenshot.答：20.TowhatIPaddressistheDNSquerymessagesent?IsthistheIPaddressofyourdefaultlocalDNSserver?Ifnot,whatdoestheIPaddresscorrespondto?答：向18.72.0.3发送消息。与制定的服务器IP地址一致。21.ExaminetheDNSquerymessage.What“Type”ofDNSqueryisit?Doesthequerymessagecontainany“answers”?答：TypeA，没有回答。22.ExaminetheDNSresponsemessage.Howmany“answers”areprovided?Whatdoeseachoftheseanswerscontain?答：一个回答。包括Name，Type，Class，Timetolive，Datalength，Addr。23.Provideascreenshot.答：
浙公网安备 33021202002483