Ukunqgubana IP kumsebenzi womnatha: Detection ISigqibo

On kwiiforam umbuzo malunga network ngamathuba liphuma eziqulathe idilesi ye IP elifanayo kwi kwicandelo elifanayo emzimbeni. Kubonakala ekuthiwa ungquzulwano iidilesi ze IP kwi-network. Emva kokufunda ezininzi yezi foram kuba kucace gca ukuba ayizizo zonke kakuhle ukuqonda le nkqubo, abaninzi kangaka aqalile ukunika iinkcukacha malunga ezahlukeneyo eziyinyani kunye conjectures ukuba kude inyaniso. Hayi ke kudala abalawuli elinye icebo elisemagqabini ziphikisana ngamandla lo mba. Kule nkalo, kwakudingeka ukuba ngandlel 'ukucacisa imeko ngokucindezela. format Forum - i exchange kwekhonkco imibuzo neempendulo kubo, yaye nqaku kukugubungela yonke into rhoqo.

Ukunqgubana IP kwi-network and womnatha yokulandelwa

Inye kuphela ukuba noxanduva lokulawula le phindwa iidilesi womnatha, ukuguqulwa olandelwayo iidilesi ARP. Oko kumelwa ngenye indlela yonke le budlelwane. Xa idilesi ye IP entsha, node A ithumela broakdast isicelo esisodwa ngokuzithandela kwi-ARP format. Kubalulekile ukuqonda ukuba le nkqubo yonke awuchaphazeli IP idilesi yomncedisi we DNS. Cela luhlobo elikhethekileyo yokosulela lolwazi, apho intsimi SPA TRA kwaye ziqulathe iidilesi zabo. Ukuba le sicelo sele iphendulwe, kwaye ungquzulwano ye IP kwi-network. Ukuba akukho mpendulo, ngoko ke idilesi kwaye kabini mhlawumbi, yaye ekhethekileyo womnatha. Kakhulu ezinomdla kakhulu xiyimo xa impendulo efika, ukuba kuloo meko kukho network?

Esiludumbo ithumela isicelo kwinethiwekhi, ofumana ubume site ekuthiwa-umhlaseli, yaye lowo wanika impendulo kwisicelo, ofumana ubume site bahlaselwa. Kwenzeka ntoni ukuba ngamnye kubo inkqubo efumanise le ngxabano?

Cinga iyunithi ohlaselayo. Ukuba akazange azimisele IP onamandla idilesi, kunye nezicwangciso zenziwe ngesandla, emva kokuba impendulo idilesi Ukuqalisa reset, oko kukuthi, esiludumbo akakwazi ukwabela idilesi ezingquzulanayo kujongano. Irekhodi iya wangena yefayile yelog, kwaye isiphoso ebekwe kwiskrini. Ukuba idilesi isicwangciso lwenziwa ngokugqitha kwi DHCP, ngoko umthengi iya kungqinisiswa kwi impixano ukuhlangabezana, yafunyanwa ngabo ukusuka DHCP-server kwi iphakheji ekhethekileyo DHCPOFFER. Xa kunjalo, ukuba oko kwenzeka ukuba idilesi DHCPOFFER yogcino, ngoko emva kokuba ufumana umxhasi impendulo kwisicelo iya kuthunyelwa ukuya iphakheji ekhethekileyo DHCPDECLINE DHCP-server. Kuxhomekeka ukuphunyezwa nkonzo kule dilesi iya kumakishwa njengoko enesiphako, ngoko ke kufuneka uzakususwa kuluhlu lwe iidilesi ezikhoyo. Emva koko, umthengi uya kwenziwa amalinge ezintsha ukufumana idilesi ye IP ngokuthumela iipakethi DHCPDISCOVER umncedisi.

Ngoku ungabona idilesi IP ungquzulwano kwicala womnatha site bahlaselwa. Kwagqitywa ungquzulwano ilula kakhulu, ukuba intsimi SPA, ngoko esiludumbo ke ukubuzisisa ungquzulwano. Le nyaniso kwakhona abhalwe log siganeko, kwaye umsebenzisi ifumana umyalezo wemposiso. Ngelo xesha kunye idilesi host ip wahlaselwa singesuki, kuba iye yaba ngunobangela ungquzulwano. Emva siqinisekise impixano iqalisa ukusebenza indlela ukusombulula imbambano ekhoyo. Kakuhle eli ingxaki kule meko ngolu hlobo lulandelayo: emva kokuthumela umbuzo ungenise isicelo ezinganyanzelekanga onke amacandelo yabathengi ngokomfuziselo ethile. Isiphumo kukufumana indlela yonxibelelwano lezibuko izakhelo triple.

Kubalulekile ukuqonda ukuba izicelo zonxibelelwano kunye neempendulo kuphela ukuba ukuqalisa kwidilesi. Ukuba, umzekelo, isayithi lulungiswe ukulungisa ingxabano phambi kokuba uxhulumaniso yayo kwinethiwekhi, emva uquko akayi kwenzeka utshintshiselwano ngokuzithandela izicelo data. Kulo mba, kwiindawo ezimbini womnatha iza kusetyenziswa idilesi impixano, kodwa isicelo ngasinye ARP entsha zombini ezalathelwe uphuhliso ziya kuvelisa iimpazamo iidilesi ingxabano.