Wake wezwa ngokuthinta inethiwekhi? Uma usebenza emkhakheni wezokuxhumana noma ukuphepha kwe-inthanethi, ungase ujwayelene nale divayisi. Kodwa kulabo abangayazi, kungaba yimfihlakalo.
Ezweni lanamuhla, ukuphepha kwenethiwekhi kubaluleke kakhulu kunanini ngaphambili. Izinkampani nezinhlangano zithembele kumanethiwekhi azo ukugcina idatha ebucayi nokuxhumana namakhasimende nabalingani. Bangaqinisekisa kanjani ukuthi inethiwekhi yabo iphephile futhi ayinakho ukufinyelela okungagunyaziwe?
Lesi sihloko sizohlola ukuthi kuyini ukuthepha kwenethiwekhi, ukuthi kusebenza kanjani, nokuthi kungani kuyithuluzi elibalulekile lokuphepha kwenethiwekhi. Ngakho-ke ake singene sifunde kabanzi ngale divayisi enamandla.
Iyini i-Network TAP (i-Terminal Access Point)?
Ama-Network TAP abalulekile ekusebenzeni kwenethiwekhi okuphumelelayo nokuphephile. Ahlinzeka ngezindlela zokuqapha, ukuhlaziya, ukulandelela, nokuvikela ingqalasizinda yenethiwekhi. Ama-Network TAP adala "ikhophi" yethrafikhi, okwenza amadivayisi ahlukahlukene okuqapha afinyelele kulolo lwazi ngaphandle kokuphazamisa ukugeleza kokuqala kwamaphakethe edatha.
Lawa madivayisi abekwe ngendlela efanele kuyo yonke ingqalasizinda yenethiwekhi ukuqinisekisa ukuqapha okuphumelelayo kakhulu ngangokunokwenzeka.
Izinhlangano zingafaka ama-TAP enethiwekhi ezindaweni ezinomuzwa wokuthi kufanele zibhekwe, okuhlanganisa kodwa kungagcini ezindaweni zokuqoqa idatha, ukuhlaziya, ukuqapha okuvamile, noma okubaluleke kakhulu njengokutholwa kokungena.
Idivayisi ye-TAP yenethiwekhi ayishintshi isimo esikhona sanoma yiliphi iphakethe kunethiwekhi esebenzayo; imane idala ikhophi yephakethe ngalinye elithunyelwe ukuze lidluliselwe ngokusebenzisa isikhombimsebenzisi sayo esixhunywe kumadivayisi okuqapha noma izinhlelo.
Inqubo yokukopisha yenziwa ngaphandle kokucindezela amandla okusebenza njengoba ingaphazamisi imisebenzi evamile ocingweni ngemuva kokuthi ukuthepha sekuqediwe. Ngakho-ke, kuvumela izinhlangano ungqimba olwengeziwe lokuphepha ngenkathi kutholwa futhi kuxwayiswa ngomsebenzi osolisayo kunethiwekhi yazo futhi kuqashwe izinkinga zokubambezeleka ezingase zenzeke ngezikhathi zokusetshenziswa okuphezulu.
Isebenza Kanjani I-Network TAP?
Ama-Network TAP ayimishini eyinkimbinkimbi evumela abaphathi ukuthi bahlole ukusebenza kwenethiwekhi yabo yonke ngaphandle kokuphazamisa ukusebenza kwayo. Angamadivayisi angaphandle asetshenziselwa ukuqapha umsebenzi womsebenzisi, ukuthola ithrafikhi enonya nokuvikela ukuphepha kwenethiwekhi ngokuvumela ukuhlaziywa okujulile kwedatha engenayo nephuma kuyo. Ama-Network TAP ahlanganisa ungqimba olubonakalayo lapho amaphakethe ahamba khona ezintanjeni nasezingutsheni kanye nasezingqimbeni eziphezulu lapho izinhlelo zokusebenza zihlala khona.
I-Network TAP isebenza njengeswishi yembobo engasebenzi evula amambobo amabili abonakalayo ukuze ibambe yonke ithrafikhi engenayo nephumayo kunoma yikuphi ukuxhumana kwenethiwekhi okudlula kuyo. Idivayisi yakhelwe ukuthi ingaphazamisi ngokuphelele, ngakho-ke yize ivumela ukuqapha okuphelele, ukuhogela, kanye nokuhlunga amaphakethe edatha, ama-Network TAP awaphazamisi noma aphazamise ukusebenza kwenethiwekhi yakho nganoma iyiphi indlela.
Ngaphezu kwalokho, basebenza njengeziteshi zokudlulisela idatha efanele ezindaweni zokuqapha ezikhethiwe; lokhu kusho ukuthi abakwazi ukuhlaziya noma ukuhlola ulwazi abaluqoqayo - okudinga elinye ithuluzi lomuntu wesithathu ukuze bakwazi ukwenza kanjalo. Lokhu kuvumela abaphathi ukulawula okunembile kanye nokuguquguquka uma kuziwa ekuhleleni indlela abangawasebenzisa ngayo kangcono ama-Network TAP abo ngenkathi beqhubeka nokusebenza ngaphandle kokuphazamiseka kuyo yonke inethiwekhi yabo.
Kungani Sidinga I-Network TAP?
Ama-Network TAP ahlinzeka ngesisekelo sokuba nohlelo oluphelele noluqinile lokubona nokuqapha kunoma iyiphi inethiwekhi. Ngokusebenzisa indlela yokuxhumana, bangakwazi ukubona idatha entambo ukuze isakazwe kwezinye izinhlelo zokuphepha noma zokuqapha. Lesi sici esibalulekile sokubonakala kwenethiwekhi siqinisekisa ukuthi yonke idatha ekhona kulayini ayiphuthelwa njengoba ithrafikhi idlula, okusho ukuthi awekho amaphakethe alahlwayo.
Ngaphandle kwe-TAP, inethiwekhi ayikwazi ukubhekwa nokuphathwa ngokugcwele. Abaphathi be-IT bangaqapha ngokuthembekile izinsongo noma bathole ukuqonda okuningiliziwe ngamanethiwekhi abo okungafihlwa yizilungiselelo zangaphandle kwebhendi ngokunikeza ukufinyelela kulo lonke ulwazi lwethrafikhi.
Ngakho-ke, kuhlinzekwa ikhophi eqondile yokuxhumana okungenayo nokuphumayo, okuvumela izinhlangano ukuthi ziphenye futhi zenze isinyathelo ngokushesha kunoma yimuphi umsebenzi osolisayo ezingase zihlangane nawo. Ukuze amanethiwekhi ezinhlangano aphephe futhi athembeke kulesi sikhathi sanamuhla sobugebengu be-inthanethi, ukusebenzisa i-TAP yenethiwekhi kufanele kubhekwe njengokuphoqelekile.
Izinhlobo ze-Network TAPs nokuthi Zisebenza Kanjani?
Uma kukhulunywa ngokufinyelela nokuqapha ithrafikhi yenethiwekhi, kunezinhlobo ezimbili eziyinhloko zama-TAP - ama-Passive TAP nama-Active TAP. Zombili zinikeza indlela elula nephephile yokufinyelela umfudlana wedatha kusuka kunethiwekhi ngaphandle kokuphazamisa ukusebenza noma ukwengeza ukubambezeleka okwengeziwe ohlelweni.
<Ama-TAP enethiwekhi angasebenzi>
I-TAP engasebenzi isebenza ngokuhlola izimpawu zikagesi ezidlula ekuxhumaneni kwekhebula elijwayelekile eliqondile phakathi kwamadivayisi amabili, njengaphakathi kwamakhompyutha namaseva. Ihlinzeka ngendawo yokuxhumana evumela umthombo wangaphandle, njenge-router noma i-sniffer, ukuthi ufinyelele ukugeleza kwesignali ngenkathi usadlula endaweni yawo yokuqala ungashintshiwe. Lolu hlobo lwe-TAP lusetshenziswa lapho kubhekwa ukuthengiselana noma ulwazi oluthinta isikhathi phakathi kwamaphuzu amabili.
<Ama-TAP Enethiwekhi Asebenzayo>
I-TAP esebenzayo isebenza njengomlingani wayo ongasebenzi kodwa inesinyathelo esengeziwe enkambisweni - ukwethula isici sokuvuselelwa kwesignali. Ngokusebenzisa ukuvuselelwa kwesignali, i-TAP esebenzayo iqinisekisa ukuthi ulwazi lungaqashwa ngokunembile ngaphambi kokuba luqhubekele phambili.
Lokhu kunikeza imiphumela ehambisanayo ngisho nangamazinga e-voltage ahlukahlukene avela kweminye imithombo exhunywe ku-chain. Ngaphezu kwalokho, lolu hlobo lwe-TAP lusheshisa ukudluliselwa kunoma iyiphi indawo edingekayo ukuze kuthuthukiswe izikhathi zokusebenza.
Yiziphi Izinzuzo Ze-Network TAP?
Ama-Network TAP asethandwa kakhulu eminyakeni yamuva nje njengoba izinhlangano zilwela ukwandisa izindlela zazo zokuphepha nokuqinisekisa ukuthi amanethiwekhi azo ahlala esebenza kahle. Njengoba enekhono lokuqapha amachweba amaningi ngasikhathi sinye, ama-Network TAP ahlinzeka ngesisombululo esisebenzayo nesingabizi kakhulu ezinhlanganweni ezifuna ukubona kangcono okwenzekayo kumanethiwekhi azo.
Ngaphezu kwalokho, ngezici ezifana nokuvikelwa kwe-bypass, ukuhlanganiswa kwamaphakethe, kanye nekhono lokuhlunga, ama-Network TAP angaphinde anikeze izinhlangano indlela ephephile yokugcina amanethiwekhi azo futhi aphendule ngokushesha ezinsongweni ezingaba khona.
I-Network TAPs inikeza izinhlangano izinzuzo eziningana, njenge:
- Ukwanda kokubonakala kokugeleza kwethrafikhi yenethiwekhi.
- Ukuphepha okuthuthukisiwe kanye nokuthobela imithetho.
- Kuncishiswe isikhathi sokuphumula ngokunikeza ukuqonda okwengeziwe ngembangela yanoma yiziphi izinkinga.
- Ukwanda kokutholakala kwenethiwekhi ngokuvumela amakhono okuqapha aphelele e-duplex.
- Izindleko zobunikazi ezincishisiwe ngoba ngokuvamile ziyonga kakhulu kunezinye izixazululo.
I-Network TAP vs. I-SPAN Port Mirror (Ungayibamba Kanjani Ithrafikhi Yenethiwekhi? I-Network Tap vs I-Port Mirror?):
Ama-Network TAP (Traffic Access Points) kanye nama-SPAN (Switched Port Analyzer) amathuluzi amabili abalulekile okuqapha ithrafikhi yenethiwekhi. Nakuba womabili enikeza ukubonakala kumanethiwekhi, umehluko omncane phakathi kwalawa amabili kumele uqondwe ukuze kunqunywe ukuthi yikuphi okufaneleka kakhulu esimweni esithile.
I-Network TAP iyidivayisi yangaphandle exhuma endaweni yokuxhumana phakathi kwamadivayisi amabili evumela ukuqapha ukuxhumana okudlula kuyo. Ayishintshi noma iphazamise idatha edluliselwayo futhi ayixhomekile kuswishi elungiselelwe ukuyisebenzisa.
Ngakolunye uhlangothi, i-SPAN port uhlobo olukhethekile lwe-switch port lapho ithrafikhi engenayo nephumayo iboniswa kwenye i-port ngezinjongo zokuqapha. Ama-SPAN port angaba nzima ukuwahlela kune-Network TAPs, futhi adinga ukusetshenziswa kwe-switch ukuze kusetshenziswe.
Ngakho-ke, ama-Network TAP afaneleka kakhulu ezimweni ezidinga ukubonakala okuphezulu, kuyilapho ama-SPAN ports engcono kakhulu emisebenzini yokuqapha elula.
Isikhathi sokuthunyelwe: Julayi-12-2024
