Zoo siab txais tos rau zaj lus qhia 8. Zaj lus qhia tseem ceeb heev, vim... Thaum ua tiav, koj yuav tuaj yeem teeb tsa kev siv Internet rau koj cov neeg siv! Kuv yuav tsum lees tias ntau tus neeg tso tseg ntawm qhov no π Tab sis peb tsis yog ib tus ntawm lawv! Thiab peb tseem muaj ntau yam nthuav ua ntej. Thiab tam sim no mus rau lub ntsiab lus ntawm peb zaj lus qhia.
Raws li koj tej zaum twb twv, hnub no peb yuav tham txog NAT. Kuv paub tseeb tias txhua tus uas saib zaj lus qhia no paub tias NAT yog dab tsi. Yog li ntawd, peb yuav tsis piav qhia meej tias nws ua haujlwm li cas. Kuv tsuas yog rov hais dua ib zaug ntxiv tias NAT yog qhov chaw nyob txhais lus thev naus laus zis uas tau tsim los cawm "nyiaj dawb," piv txwv li. pej xeem IPs (cov chaw nyob uas tau xa hauv Is Taws Nem).
Hauv zaj lus qhia dhau los, tej zaum koj twb pom tias NAT yog ib feem ntawm Txoj Cai Tswj Xyuas Kev Nkag Mus. Qhov no yog qhov laj thawj heev. Hauv SmartConsole, NAT teeb tsa tau muab tso rau hauv ib lub tab cais. Peb mam li saib muaj hnub no. Feem ntau, hauv zaj lus qhia no peb yuav tham txog NAT hom, teeb tsa kev nkag mus rau Is Taws Nem thiab saib cov piv txwv classic ntawm chaw nres nkoj xa mus. Cov. cov kev ua haujlwm uas feem ntau siv hauv cov tuam txhab. Cia peb pib.
Ob txoj hauv kev los teeb tsa NAT
Check Point txhawb ob txoj hauv kev los teeb tsa NAT: Automatic NAT ΠΈ Manual NAT. Ntxiv mus, rau txhua txoj kev no muaj ob hom kev txhais lus: Hide NAT ΠΈ Static NAT. Feem ntau nws zoo li daim duab no:
Kuv nkag siab tias feem ntau yuav zoo li txhua yam zoo li nyuaj heev tam sim no, yog li cia peb saib txhua hom hauv me ntsis ntxiv.
Automatic NAT
Qhov no yog txoj kev ceev tshaj plaws thiab yooj yim tshaj plaws. Configuring NAT yog ua tiav hauv ob lub clicks xwb. Txhua yam koj yuav tsum tau ua yog qhib cov khoom ntawm cov khoom xav tau (yog nws lub rooj vag, network, tus tswv tsev, thiab lwm yam), mus rau NAT tab thiab tshawb xyuas "Ntxiv cov cai txhais lus chaw nyob tsis siv neeg" Ntawm no koj yuav pom daim teb - txoj kev txhais lus. Muaj, raws li tau hais los saum no, ob ntawm lawv.
1. Aitomatic Hide NAT
Los ntawm lub neej ntawd nws yog Hide. Cov. Hauv qhov no, peb lub network yuav "ntaus" qab qee qhov chaw nyob IP pej xeem. Hauv qhov no, qhov chaw nyob tuaj yeem raug coj los ntawm sab nraud interface ntawm lub rooj vag, lossis koj tuaj yeem qhia qee qhov lwm tus. Hom NAT no feem ntau hu ua dynamic lossis ntau-rau-ib, vim Ntau qhov chaw nyob sab hauv raug muab txhais ua ib qho sab nraud. Lawm, qhov no ua tau los ntawm kev siv cov chaw nres nkoj sib txawv thaum tshaj tawm. Nkaum NAT ua haujlwm tsuas yog nyob rau hauv ib qho kev taw qhia (los ntawm sab hauv mus rau sab nraud) thiab yog qhov zoo tagnrho rau cov tes hauj lwm hauv zos thaum koj tsuas yog xav muab kev nkag mus rau Is Taws Nem. Yog tias kev khiav tsheb pib los ntawm lub network sab nraud, ces NAT ib txwm yuav tsis ua haujlwm. Nws hloov tawm los ua kev tiv thaiv ntxiv rau cov kev sib txuas sab hauv.
2. Tsis siv neeg Static NAT
Nkaum NAT yog qhov zoo rau txhua tus, tab sis tej zaum koj yuav tsum tau muab kev nkag los ntawm lub network sab nraud mus rau qee lub server sab hauv. Piv txwv li, rau DMZ server, zoo li hauv peb qhov piv txwv. Hauv qhov no, Static NAT tuaj yeem pab peb. Nws kuj yog ib qho yooj yim heev rau kev teeb tsa. Nws yog txaus los hloov txoj kev txhais lus rau Static hauv cov khoom vaj khoom tsev thiab qhia meej rau pej xeem IP chaw nyob uas yuav siv rau NAT (saib daim duab saum toj no). Cov. Yog hais tias ib tug neeg los ntawm lwm lub network nkag mus rau qhov chaw nyob no (ntawm ib qho chaw nres nkoj!), ces qhov kev thov yuav raug xa mus rau lub server nrog tus IP sab hauv. Ntxiv mus, yog tias tus neeg rau zaub mov nws tus kheej mus online, nws tus IP kuj tseem yuav hloov mus rau qhov chaw nyob peb teev. Cov. Qhov no yog NAT hauv ob qho tib si. Nws tseem hu ua ib tug-rau-ib thiab qee zaum siv rau pej xeem servers. Vim li cas "qee zaum"? Vim tias nws muaj ib qho teeb meem loj - pej xeem IP chaw nyob yog tag nrho (tag nrho cov chaw nres nkoj). Koj tsis tuaj yeem siv ib qho chaw nyob rau pej xeem rau cov servers sib txawv (nrog cov chaw nres nkoj sib txawv). Piv txwv li HTTP, FTP, SSH, SMTP, thiab lwm yam. Phau ntawv NAT tuaj yeem daws qhov teeb meem no.
Manual NAT
Qhov peculiarity ntawm Phau Ntawv NAT yog tias koj yuav tsum tsim cov cai txhais lus koj tus kheej. Nyob rau tib lub NAT tab hauv Access Control Policy. Tib lub sijhawm, Phau Ntawv NAT tso cai rau koj los tsim cov cai txhais lus nyuaj dua. Cov teb nram qab no muaj rau koj: Keeb Kwm Keeb Kwm, Keeb Kwm Keeb Kwm, Keeb Kwm Kev Pabcuam, Cov Lus Txhais Lus, Txhais Lus Txhais, Kev Pab Txhais Lus.
Kuj tseem muaj ob hom NAT ua tau ntawm no - Nkaum thiab Static.
1. Phau ntawv Hide NAT
Nkaum NAT nyob rau hauv cov ntaub ntawv no yuav siv tau nyob rau hauv ntau yam xwm txheej. Ob peb piv txwv:
- Thaum nkag mus rau ib qho chaw tshwj xeeb los ntawm lub network hauv zos, koj xav siv qhov chaw tshaj tawm xov xwm sib txawv (sib txawv ntawm qhov siv rau txhua kis).
- Muaj ntau lub computers nyob rau hauv lub zos network. Automatic Hide NAT yuav tsis ua haujlwm ntawm no, vim tias ... Nrog rau qhov kev teeb tsa no, nws tuaj yeem teeb tsa tsuas yog ib qho chaw nyob IP pej xeem, tom qab lub khoos phis tawj yuav "ntaus". Tej zaum tsuas yog tsis muaj chaw nres nkoj txaus rau kev tshaj tawm. Muaj, raws li koj nco qab, me ntsis ntau tshaj 65 txhiab. Ntxiv mus, txhua lub computer tuaj yeem tsim ntau pua zaus. Phau ntawv Hide NAT tso cai rau koj los teeb tsa ib lub pas dej ntawm pej xeem IP chaw nyob hauv Cov Lus Txhais Lus. Li no nce tus naj npawb ntawm tau NAT translations.
2.Manual Static NAT
Static NAT yog siv ntau zaus thaum manually tsim cov cai txhais lus. Ib qho piv txwv classic yog qhov chaw nres nkoj xa mus. Cov ntaub ntawv thaum pej xeem IP chaw nyob (uas tej zaum yuav yog lub rooj vag) nkag los ntawm lub network sab nraud ntawm ib qho chaw nres nkoj tshwj xeeb thiab qhov kev thov raug muab txhais mus rau ib qho chaw sab hauv. Hauv peb lub chaw kuaj mob, peb yuav xa cov chaw nres nkoj 80 mus rau DMZ server.
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