Video: NAT yog dab tsi hauv kev ruaj ntseg?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
A NAT (Network Address Translation lossis Network Address Translator) yog virtualization ntawm Internet Protocol (IP) chaw nyob. NAT pab txhim kho kev ruaj ntseg thiab txo tus naj npawb ntawm IP chaw nyob uas lub koom haum xav tau. NAT Cov rooj vag zaum ntawm ob lub network, sab hauv network thiab sab nraud network.
Hauv qhov no, NAT yog dab tsi thiab nws ua haujlwm li cas?
Nws tso cai rau cov IP ntiag tug uas siv tsis tau sau npe IP chaw nyob txuas rau Is Taws Nem. NAT ua haujlwm ntawm lub router, feem ntau txuas ob lub network ua ke, thiab txhais cov chaw nyob ntiag tug (tsis yog lub ntiaj teb tshwj xeeb) chaw nyob hauv lub network sab hauv mus rau qhov chaw nyob raug cai, ua ntej pob ntawv xa mus rau lwm lub network.
Tsis tas li ntawd, vim li cas Nat thiaj xav tau? NAT yog ib qho tseem ceeb heev ntawm kev ruaj ntseg firewall. Nws khaws cov naj npawb ntawm cov chaw nyob pej xeem siv hauv ib lub koom haum, thiab nws tso cai rau kev tswj hwm kev nkag mus rau cov peev txheej ntawm ob sab ntawm lub firewall.
Hais txog qhov no, Nat puas nce kev ruaj ntseg?
Network Address Translation pab txhim kho kev ruaj ntseg los ntawm kev rov siv IP chaw nyob. Cov NAT router txhais cov tsheb khiav mus rau hauv thiab tawm hauv lub network ntiag tug. Saib ntau cov duab ntawm kev sib tham hauv computer. Rau lub khoos phis tawj sib txuas lus nrog lwm lub khoos phis tawj thiab Web servers hauv Is Taws Nem, nws yuav tsum muaj qhov chaw nyob IP.
NAT yog dab tsi thiab nws hom?
txawv hom ntawm NAT - Static NAT , Dynamic NAT thiab PAT. Static NAT (Network Address Translation) - Static NAT (Network Address Translation) yog ib-rau-ib daim ntawv qhia ntawm tus kheej IP chaw nyob rau pej xeem IP chaw nyob. Dynamic NAT tsim ib-rau-ib daim ntawv qhia ntawm tus kheej IP chaw nyob rau pej xeem IP chaw nyob.
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