Cov lus txib dab tsi tuaj yeem siv los yaug lub zos Dns Cache ntawm Windows Computer?

txheem

ipconfig /flushdns hais kom ua

Ob txoj kev cai dab tsi yog siv los xa cov ntawv xa ntawv?

IMAP thiab POP3 yog ob feem ntau siv Internet mail raws tu qauv rau retrieve emails. Ob qhov kev cai lij choj tau txais kev txhawb nqa los ntawm txhua tus neeg siv email niaj hnub thiab web servers.

"Primary operating system" yog lub operating system uas cov ntaub ntawv sib qhia raws tu qauv hauv nqe lus nug feem ntau yog siv. Ntawm Microsoft Windows, kev sib koom network yog muab los ntawm Windows network tivthaiv "Cov ntaub ntawv thiab tshuab luam ntawv sib qhia rau Microsoft Networks", siv Microsoft's SMB (Server Message Block) raws tu qauv.

Ob nqe lus twg yog siv los piav txog Tus Neeg Siv Datagram Protocol UDP?

UDP (User Datagram Protocol) yog ib qho kev sib txuas tsis sib xws ntawm tsev neeg hauv internet raws tu qauv uas ua haujlwm ntawm txheej thauj thiab tau teev tseg hauv 1980 hauv RFC (Thov rau Cov Lus Qhia) 768. Raws li kev hloov pauv thiab yuav luag tsis pub ncua rau TCP, UDP yog siv. rau kev xa xov ceev ceev ntawm cov ntaub ntawv pob khoom hauv IP tes hauj lwm.

Dab tsi yog siv los txheeb xyuas qhov chaw network ntawm tus IP chaw nyob?

Qhov "tus tswv tsev" ntawm qhov chaw nyob ip yog 0.0.1.22. Siv koj cov ntawv sau, qhov thib peb octet ntawm ip 192.168.33.22 (mask 255.255.224.0) yog: 001. 00001 . Txhawm rau kom tau txais ib feem ntawm lub network ntawm tus IP chaw nyob, koj yuav tsum ua binary THIAB ntawm tus IP chaw nyob thiab nws cov netmask.

DNS servers ua haujlwm li cas?

Domain Name Servers (DNS) yog Internet sib npaug ntawm phau ntawv xov tooj. Lawv tuav cov npe ntawm cov npe sau npe thiab txhais lawv mus rau Internet Protocol (IP) chaw nyob. Qhov no yog qhov tsim nyog vim tias, txawm hais tias cov npe sau tau yooj yim rau tib neeg nco qab, khoos phis tawj lossis tshuab, nkag mus rau cov vev xaib raws li IP chaw nyob.

Qhib Windows 2012 File Sharing Ports

UDP 138, Cov ntaub ntawv thiab tshuab luam ntawv sib koom (NB-Datagram-In)
UDP 137, Cov ntaub ntawv thiab tshuab luam ntawv sib koom (NB-Npe-hauv)
TCP 139, Cov ntaub ntawv thiab tshuab luam ntawv sib koom (NB-Session-In)
TCP 445, Cov ntaub ntawv thiab tshuab luam ntawv sib koom (SMB-In)

Microsoft cov ntaub ntawv sib koom SMB: Tus neeg siv Datagram raws tu qauv (UDP) chaw nres nkoj los ntawm 135 txog 139 thiab kis tau tus mob tswj raws tu qauv (TCP) chaw nres nkoj los ntawm 135 mus rau 139. Direct-hosted SMB tsheb tsis muaj lub network yooj yim input/output system (NetBIOS): chaw nres nkoj 445 (TCP thiab UPD).

Server Message Block (SMB) Protocol yog cov ntaub ntawv sib koom ua ke hauv network, thiab raws li tau siv hauv Microsoft Windows yog hu ua Microsoft SMB Protocol. Cov txheej txheem ntawm cov ntawv xov xwm uas txhais tau hais tias ib qho version ntawm tus txheej txheem yog hu ua lus. Lub Hom Phiaj Internet Cov Ntaub Ntawv (CIFS) raws tu qauv yog ib hom lus ntawm SMB.

Kuv yuav ua li cas thiaj paub tias IP chaw nyob hauv kuv lub network li cas?

Nrhiav koj tus IP chaw nyob yam tsis tau siv cov lus txib

Nyem rau Start icon thiab xaiv Chaw.
Nyem rau Network & Internet icon.
Txhawm rau saib tus IP chaw nyob ntawm kev sib txuas, xaiv Ethernet ntawm sab laug kab ntawv qhia zaub mov thiab xaiv koj lub network kev sib txuas, koj tus IP chaw nyob yuav tshwm sim ntawm "IPv4 Chaw Nyob".

Netid thiab Hostid yog dab tsi?

Kev sib koom tes. Qhia. Hauv chav kawm qhov chaw nyob, tus IP chaw nyob ntawm chav kawm A, B thiab C tau muab faib ua netid thiab hostid. Lub netid txiav txim siab qhov chaw nyob hauv network thaum hostid txiav txim siab tus tswv tsev txuas nrog lub network ntawd.

Dab tsi yog qhov network thiab host feem hauv IP chaw nyob?

Lub octet nyob rau hauv lub subnet daim npog qhov ncauj uas muaj 224 muaj peb sib law liag binary 1s nyob rau hauv nws: 11100000 . Yog li ntawd, "kev koom tes" ntawm tag nrho IP chaw nyob yog: 192.168.32.0 . Qhov "tus tswv tsev" ntawm qhov chaw nyob ip yog 0.0.1.22. Siv koj cov ntawv sau, qhov thib peb octet ntawm ip 192.168.33.22 (mask 255.255.224.0) yog: 001.

Vim li cas DNS muaj txiaj ntsig?

Qhov tseem ceeb ntawm DNS. Domain Name System (DNS) yog siv los hloov IP chaw nyob rau hauv cov ntawv nyeem tau xws li bbc.co.uk. Yog tsis muaj DNS txhua leej txhua tus yuav tsum nco ntsoov random hlua ntawm tus lej nkag mus rau cov vev xaib sib txawv, lossis tsawg kawg Google tus IP chaw nyob.

Dab tsi yog 13 lub hauv paus servers?

Nyob rau hauv tag nrho, muaj 13 lub ntsiab DNS hauv paus servers, txhua tus muaj npe nrog cov ntawv 'A' rau 'M'. Lawv txhua tus muaj qhov chaw nyob IPv4 thiab feem ntau muaj qhov chaw nyob IPv6. Tswj lub hauv paus neeg rau zaub mov yog ICANN lub luag haujlwm (Internet Corporation rau Cov Npe thiab Tus lej).

DNS ua haujlwm li cas ib kauj ruam?

Cia peb ua tib zoo saib qhov txheej txheem:

Kauj Ruam 1: Thov cov ntaub ntawv.
Kauj ruam 2: Nug cov recursive DNS servers.
Kauj ruam 3: Nug cov hauv paus npe servers.
Kauj ruam 4: Nug TLD lub npe servers.
Kauj ruam 5: Nug cov cai DNS servers.
Kauj ruam 6: Rov qab tau cov ntaub ntawv.
Kauj Ruam 7: Tau txais cov lus teb.

TCP 139 siv rau dab tsi?

Port 445 thiab Port 139 siv rau dab tsi? NetBIOS sawv cev rau Network Basic Input Output System. Nws yog software raws tu qauv uas tso cai rau cov ntawv thov, PCs, thiab Desktops ntawm ib cheeb tsam hauv cheeb tsam network (LAN) sib txuas lus nrog network hardware thiab xa cov ntaub ntawv hla lub network.

Qhov chaw nres nkoj twg siv rau kev sib koom ua ke?

Cov npe ntawm cov chaw nres nkoj tus lej: Nkag siab Sib Koom Folders thiab Windows Firewall

Kev twb kev txuas	Ports
TCP	139, 445
UDP	137, 138

Puas yog qhov chaw nres nkoj 445 ruaj ntseg?

Ntau yam kev ruaj ntseg tawm tsam yog cov lej ua si; Yog vim li cas qhov kev tawm tsam loj heev uas siv TCP chaw nres nkoj 445 yog tsis xav tsis thoob. Nrog rau cov chaw nres nkoj 135, 137 thiab 139, chaw nres nkoj 445 yog ib txwm siv Microsoft networking chaw nres nkoj. Malware nrhiav kev siv cov tshuab tsis muaj kev ruaj ntseg Windows yog qhov yuav tshwm sim.

Qhov txawv ntawm SMB thiab NFS yog dab tsi?

NFS yog cov txheej txheem ib txwm nyob rau hauv UNIX systems, thaum Samba yog ib qho kev pab cuam uas muab SMB, raws tu qauv rau Windows systems. Linux txhawb ob qho tib si ua cov ntaub ntawv. Los ntawm qhov pom ntawm tus neeg siv Windows, SMB tej zaum yuav yog qhov kev xaiv nkaus xwb. SMB tsis ua ib yam.

Windows puas tuaj yeem txuas rau NFS?

Rub tawm thiab nruab Microsoft Windows Services rau Unix (SFU). Koj tsuas yog yuav tsum tau nruab NFS Client thiab Tus Neeg Siv Lub Npe Mapping. Thaum SFU tau teeb tsa thiab teeb tsa, teeb tsa cov pawg thiab qhia nws mus rau lub tsav siv lub cuab yeej Map Network Drive lossis los ntawm kab hais kom ua.

Puas yog FTP sai dua SMB?

SMB yog "tiag tiag" cov cuab yeej sib qhia cov ntaub ntawv tab sis nws tso siab rau kev siv "virtual network" uas ua rau nws tsis tuaj yeem txwv nws txoj haujlwm ntawm TCP / IP qib. FTP tuaj yeem ua tau nrawm heev los hloov cov ntaub ntawv loj (txawm tias nws tsis muaj txiaj ntsig nrog cov ntaub ntawv me).

Ob lub khoos phis tawj uas muaj qhov sib txawv subnet npog tuaj yeem sib txuas lus?

Feem ntau hais lus, tsis muaj ob lub cuab yeej yuav tsum muaj tib qhov chaw nyob IP tshwj tsis yog lawv nyob tom qab NAT ntaus ntawv. Cov khoos phis tawj xav tau cov routers sib txuas lus nrog cov khoom siv uas tsis nyob ntawm lawv tib lub laj thawj subnet.

IP subnetting yog dab tsi?

Ib lub subnetwork lossis subnet yog qhov kev faib tawm ntawm tus IP network. Kev coj ua ntawm kev faib lub network rau hauv ob lossis ntau lub network yog hu ua subnetting. Cov khoos phis tawj uas koom nrog lub subnet yog nyob nrog ib qho tseem ceeb tshaj plaws-tseem ceeb-pab pawg hauv lawv qhov chaw nyob IP.

Subnetting ua li cas?

Kev siv ntau tshaj plaws ntawm subnetting yog los tswj cov tsheb khiav hauv lub network. Subnetting yog ua los ntawm kev qiv cov khoom siv thiab siv lawv ua cov khoom siv network. Txhawm rau pib, cia saib peb lub tuam txhab ABC lub tuam txhab chaw nyob (192.168.1.0) thiab nws lub npog ntsej muag subnet (255.255.255.0) raws li tau hais hauv binary.

Duab hauv kab lus los ntawm "Wikimedia Commons" https://commons.wikimedia.org/wiki/Commons:Village_pump/Archive/2010/10