AmakhompyuthaIsofthiwe

Ukuskenela inethiwekhi: ukuqokwa Ukuvikelwa kuwo

Ukuskenela inethiwekhi ingenye imisebenzi ethandwa kakhulu eyenziwa uhlelo abalawuli. Cishe, akunakwenzeka ukuba kukhona ezifana IT-Uchwepheshe eyayingakaze emisebenzini yabo akawasebenzisanga umyalo ping, e ngandlela-thile, lifakwe nale yiluphi uhlelo lokusebenza. It kuyafaneleka ukucabangela lesi sihloko kabanzi.

scan uya khona

Eqinisweni, scan inethiwekhi iyithuluzi elinamandla kakhulu, njalo isetshenziselwe ukusetha i njengendlela inethiwekhi, imishini inethiwekhi. Uma uxazulula ISIZINDA kanye ngahlinzwa. By the way, ngaphezu zisebenzisa ngezinhloso zebhizinisi, ukuskena kwenethiwekhi - liphinde ithuluzi intandokazi kwanoma iyiphi umhlaseli. Zonke ithuluzi edume kakhulu ngokuhlola inethiwekhi adalwa kubaduni okhokhelwayo. Ngosizo lwabo kungenzeka azokuqhubela scan inethiwekhi futhi ukuqoqa wonke kunesidingo ulwazi mayelana amakhompyutha ukuthi exhunyiwe kuyo. Ngakho ungathola ukuthi hlobo luni inethiwekhi izakhiwo, lokho imishini esetshenziswa, okuyinto nezimbobo avulekele kusuka kukhompyutha. Lena lonke ulwazi ngqangi okudingekayo ukuze inqamuke. Njengoba Izinsiza ezisetshenziswa abahlaseli, bese uwasebenzisa ukuthola zonke izindawo inethiwekhi sengozini phakathi nokuhlela.

Ngokuvamile, uhlelo kungenziwa ihlukaniswe ezimbili izinhlobo. Amanye asebenza kuthwetshulwa IP amakheli kunethiwekhi yasendaweni, nezinye nezimbobo ziskenwa. ukwahlukana enjalo angase abizwe ngokuthi kabi amandla akhe, ngoba iningi labazalwane amathuluzi ihlanganisa kokubili imisebenzi.

Iskena IP-ikheli

Inethiwekhi Windows ngokuvamile eziningi izimoto. Lo mshini ukuqinisekiswa kwabo IP amakheli uthumela ICMP-amaphakethe futhi elinde impendulo. Uma iphakethe athola, khompyutha esixhunywe inethiwekhi kuleli kheli.

Uma sicabanga amakhono ICMP-protocol Kumele kuqashelwe ukuthi inethiwekhi scan usebenzisa ping futhi efanayo Izinsiza nje kuwukusika elijikayo. Lapho amaphakethe exchange Ungathola ulwazi lwe-izici ezibaluleke ngaphezu yokuthi yokuxhuma engeyokuqala kunethiwekhi ekhelini othize.

Indlela uzivikele ukuskena IP amakheli?

Kungenzeka yini ukuba uzivikele kulokhu? Yebo, udinga ukukhiya timphendvulo izicelo ICMP-protocol. Lena indlela esetshenziswa abaphathi obakhathalelayo nokuvikeleka inethiwekhi. Okubaluleke njengakho ikhono ukuvimbela ukuthi kungenzeka scan inethiwekhi. Ngenxa yalesi ukuxhumana elinganiselwe nge ICMP-protocol. Naphezu lula walo, ukuqinisekisa zezinkinga inethiwekhi, unga lezi zinkinga futhi udale. Ngokufinyelela kokuvinjwa, kubaduni bayakwazi ukufeza ukuhlaselwa.

imbobo ukuskena

Ezimweni lapho ICMP iphakethe exchange ivinjelwe, port ukuskena indlela esetshenziswa. Ukuba ukuskena ejwayelekile nezimbobo ikheli ngamunye kungenzeka, kungenzeka ukwazi ukuthi yiziphi ISIZINDA axhunyiwe kunethiwekhi. Endabeni kuvulwa imbobo noma kumodi yokulinda, ungabona ukuthi kuleli kheli kukhona kukhompyutha ixhunywe kunethiwekhi.

Iskena inethiwekhi nezimbobo basonta isigaba TCP kwekulalela.

Indlela uzivikele ukulalela nezimbobo?

Cishe akunakwenzeka, kungenzeka ukuvimbela othile uzame ukuskena amatheku kukhompyutha. Kodwa kungenzeka nenkanuko edlulele Eqinisweni wokulalela, ngemva kwalokho kungenzeka zokudambisa imiphumela ezingezinhle ezingaphakama. Ukuze wenze lokhu kahle ukwenza ukucushwa futhi vimbela amasevisi lokuvikela ukuthi azisetshenziswa. Siyini isizinda we-firewall yesistimu yokusebenza? Sengiphetha, zonke izimbobo ubuningi. Ngaphezu kwalokho, kokubili software kanye hardware izibhulamlilo athole khona umbuso ukweseka umsebenzi ezama scan nezimbobo. Leli thuba kufanele banganakwa.

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