Yog dab tsi - Telnet chaw nres nkoj? Kev twb kev txuas thiab pib Telnet

Progress - ib tug tshwm sim uas paub tsis muaj shutdowns. Nyob rau hauv lub teb ntawm cov ntaub ntawv technology hloov tshwm sim txhua txhua hnub muaj cov khoom tshiab, thiab laus zuj zus outlived nws cov kev pab cuam. Tab sis muaj cov cuab yeej uas tseem nrov txawm muaj ib tug lwm txoj. Ib tug piv txwv yog lub Telnet raws tu qauv. Yuav ua li cas yog Telnet, thiab yuav ua li cas yuav siv nws?

Ib me ntsis ntawm keeb kwm: thaum twg thiab rau dab tsi nyob Telnet?

Telnet muaj nyob tshaj 40 xyoo dhau los, sai tom qab lub installation ntawm cov thawj ARPANET neeg rau zaub mov. Qhov no yog ib tug ntawm cov hiob Internet twg. Nyob rau hauv ib qho era thaum lub GUI yog tsis nyob rau hauv lub xub ntiag, thiab cov thawj network twb los tshwm, qhov yuav tsum tau rau tej thaj chaw deb kev twb kev txuas mus rau ib tug ntaus ntawv koj hais kuv sau lawv xav tau. Tus thawj cov tshuaj muaj ib qho teeb meem, thiab tag nrho cov tom ntej, koj yuav tau ua hauj lwm rau tej thaj chaw deb ntaus ntawv raws li nws. Lub interface ntawm qhov hais kom ua kab yog muaj tag nrho cov yam ntxwv uas yeej txaus siab los ntawm tus tej thaj chaw deb neeg rau zaub mov. Suffice nws tau tsim nyog qib ntawm kev nkag tau thiab paub cov Telnet commands. Yog dab tsi thiab dab tsi no daim ntawv qhia, peb tau to taub. Tab sis niaj hnub no los siv ib Telnet kev twb kev txuas?

Pib davhlau ya nyob twg. Cov menyuamuas ntawm pab uas tsim nyog

Nyob rau hauv lub tam sim no lub qhov rais kev khiav hauj lwm systems, ua ntej yuav khiav Telnet, koj yuav tsum xyuas seb cov kev tivthaiv yog ntsia tau rau hauv lub system. Ua nws ib qho yooj yim. Rau lub qhov rais 7, feem ntau nyob rau hauv hnub no lub hnub ntawm lub operating system, koj yuav tsum ua raws li cov kauj ruam:

1. Xaiv "Control Vaj Huam Sib Luag" los yog cov tswj vaj huam sib luag nyob rau hauv lub "Start" ntawv qhia zaub mov (Start).
2. Nyob rau hauv lub qhov rais uas qhib, xaiv "Programs." Nyob rau hauv lub English version ntawm lub system yog yuav tsum tau cov kev pab cuam.
3. Mus rau lub tab "Pab kom los yog lov tes taw qhov rais nta" (Tig lub qhov rais nta los yog tua). Lub system compiles ib daim ntawv teev cov tag nrho muaj Cheebtsam. Twb ntsia yuav tsum khij nrog tus chij. Qhov no txoj kev muaj peev xwm siv ob peb feeb.
4. Tom qab load rau hauv daim ntawv, koj yuav tsum nrhiav yam khoom ntawd Telnet-neeg. Nyob rau hauv cov zaub mov muaj thiab Telnet-neeg rau zaub mov, tab sis no peb yuav tsum rov qab mus tom qab. Yog hais tias ib tug kos cim tom ntej no mus rau yam khoom rau peb nws yog tsis tsim nyog, nws yuav tsum tau muab tso rau.
5. Tom qab txhaj "OK" lub system yuav pib mus rau nruab qhov tsim nyog yam rau cov raws tu qauv mus ua hauj lwm. Qhov no tej zaum yuav muab ib co sij hawm, tab sis hnub no lub computers txheej txheem yog tsis zoo li noj ntau tshaj li ib feeb. Yog li, cov lus nug ntawm yuav ua li cas los pab kom Telnet, twb daws nyob rau hauv 5 yooj yim cov kauj ruam.

Telnet kev pab cuam: dab tsi neeg rau zaub mov thiab Telnet tus thov kev pab?

Me ntsis saum toj no lub twb hais ob lub ntsiab ntawm tej header. Raws li nrog rau ntau lwm yam kev siv, kom paub qhov txawv Telnet thov kev pab thiab neeg rau zaub mov. Txawm li cas los, Telnet neeg rau zaub mov - lub neeg rau zaub mov yog tsis tau nyob rau hauv lub dav siab ntawm lo lus. Lub computer uas los ntawm tus kev twb kev txuas yog xav tau tus neeg ntaus ntawv mus rau uas kev twb kev txuas yog ua, neeg rau zaub mov yuav tsum tau. Nws yuav ua tau ib tug router, ib lub computer, ib tug tswj mus, los yog lwm yam party uas txhawb nqa cov kev tswj los ntawm qhov hais kom ua kab. Thaum nws los txog rau remotely muab koj tus kheej cov neeg siv lub computer los yog neeg rau zaub mov, Telnet-chaw nres nkoj yuav tsum tau qhib. nws yog feem ntau kaw rau kev ruaj ntseg yog vim li cas, ces koj yuav tau ib qho yuam kev cov lus thaum koj sim mus nrhiav kom tau ib tug kev sib kho. Yuav kom ntsuam xyuas cov qhib thiab kaw ports, koj muaj peev xwm siv ib tug tshwj xeeb nqi hluav taws xob los yog ib tug web kev pab cuam. Tus txheem Telnet chaw nres nkoj - 23. Yog hais tias koj xav mus tsis tau tsuas yog koj tus kheej mus txuas rau lwm yam computers, tab sis kuj tso cai rau cov koom haum saib xyuas ntawm koj lub PC ntawm Telnet, nyob rau hauv tib lub operating system SNAP qhia mus zuam thiab opposite lub Telnet neeg rau zaub mov tivthaiv. Ib yam li ntawd, lawv yuav tsum tau teeb PC thiab neeg rau zaub mov kho vajtse uas koj muab.

Programs los pab cov ua hauj lwm nrog Telnet

Tom qab khiav tag nrho yuav tsum tau cov kev pab cuam Telnet yuav xyuam xim pib nrog lub built-in qhov rais cuab tam - hais kom ua kab. Hu nws los ntawm lub "Start" ntawv qhia zaub mov, los yog nias rau cov tsim nyog, los yog ceev Dial (cmd). Nws yog ib advisable mus yeej ib txwm khiav qhov hais kom ua kab nrog rau cov cai ntawm cov neeg siv "Admin" (los yog lub zos li uas koj nyob nraum ua hauj lwm, los yog sau). Nyob rau hauv cov ntaub ntawv no, koj tsis tas yuav pib dua rau daim ntawv thov, yog tias yuav tsum nce. Nyob rau hauv tas li ntawd mus rau lub uas twb muaj lawm cuab yeej ntawm lub operating system, muaj yog cov thib peb-tog cov kev pab cuam uas tso cai los ntawm Telnet-raws tu qauv. Cov feem nrov ntawm cov yog Putty. Nrog rau nws yog ib tug kawm tau zoo thiab lwm yam kev siv khiav rau txawv operating systems, xws li TeraTerm, AnyConnect, DTelnet, EasyTerm, KoalaTerm thiab ntau lwm tus neeg. Yuav ua li cas qhov kev pab cuam siv, txhua leej txhua tus txiav txim siab rau nws tus kheej, nyob ntawm seb tus kheej nyiam, interface uas yuav tsum tau, thiab thiaj li nyob. D. Muaj tsis muaj qhov sib txawv nyob rau hauv cov nqe lus ntawm functionality ntawm lawv, thiab tsis tau yuav. Txhua yam ntawm cov cuab yeej muaj los siv rau tag nrho daim ntawv ntawm Telnet txib.

Telnet-teams: yuav ua li cas to taub?

Ib tug tej network khiav dej num yuav tsis tau yooj yim nyob rau hauv ib tug ob peb feeb rau nruab qhov tsim nyog Cheebtsam (yog hais tias lawv tsis tau ntsia ua ntej), mus qhib ib tug Telnet-kev sib kho thiab ua tag nrho cov chaw ntawm cov chaw taws teeb party. Txawm li cas los, muaj cov neeg tuaj tshiab, qhov uas nws pom cov console, yuav luag rau cov thawj lub sij hawm nyob rau hauv kuv lub neej. Yuav ua li cas kuv nrhiav tau ib daim ntawv teev muaj commands nyob rau hauv Telnet? Yuav ua li cas yog tsis Auth los yog SET LOCALECHO? Nws tsis yog li yooj yim raws li nws ua ntej nkawd. Firstly, peb yuav tsum nco ntsoov tias nyob rau hauv cov lus hais kom interface muaj ib tug built-in pab. Nws yog muaj nyob rau ntawm tus txheej txheem daws, piv txwv li, kev pab los yog '?'. Secondly, xav tias yuav ua li cas cov laus no raws tu qauv, lub network yuav nrhiav tau ib tug infinite tooj ntawm cov kev pab nrog pab ntaub ntawv rau lub syntax. Yog li, los ua ib tug kiag li tsis muaj dab tsi. Xyaum qhia tau hais tias nrog ib tug ob peb kab ntawm commands mus cuag tau yooj yim npaum li nyob rau hauv feem ntau. Thiab tom qab ib tug ob peb zaug, koj yuav tau txais cog qoob loo rau cov commands tsis muaj xa mus rau lub syntax-pab.

Telnet mus rau lub network ntaus ntawv

Peb twb tham txog qhov tseeb hais tias siv cov Telnet raws tu qauv yuav tswj tsis tau tsuas yog computers, tab sis kuj yog ib tug ntau yam ntawm network pab kiag li lawm. Feem ntau cov chav kawm ntawv ntawm xws li - ib tug router. Yog li ntawd yog dab tsi Telnet mus rau lub router, yog vim li cas peb yuav tsum tau nws, yuav ua li cas pab kom nws?

Nyob rau hauv lub chaw tsim tshuaj paus thiab tej qauv pab kom nkag tau mus siv ntawm Telnet yuav txawv. Koj yuav mus rau lub router Web interface los yog los ntawm lub console. Nyob rau hauv thawj cov ntaub ntawv, koj yuav tau mus nrhiav tej thaj chaw deb Administration yam khoom, uas tso cai rau ib co daim ntawv ntawm kev twb kev txuas (Telnet, SSH). Nyob rau hauv lub thib ob cov ntaub ntawv, kev nkag tej zaum yuav muab ntawm ib tug hais kom ua kab. Txhua khiav dej num xaiv yooj yim rau lawv scenario. Txawm li cas los, muaj routers uas siv tsuas yog ib tug ntawm ob tug tau variants ntawm thawj zaug kev twb kev txuas, piv txwv li, tsuas yog siv tau qhov Web site interface. Administrator, accustomed mus ua hauj lwm nrog cov console yuav ua tau heev seeb mus nrhiav ib tug taw tes rau qhov twg koj yuav tsum muab tso rau lub treasured zuam, tab sis nyob rau hauv kev muaj tiag yog tsis muaj dab tsi nyuaj kiag li. Lub interface ntawm feem ntau niaj hnub routers yog heev nkag siab. Ntawv qhia zaub mov npe hais lus rau lawv tus kheej, minimalist tsim yuav tsis pub rau koj tau ploj.

Cov kev pab cuam ntawm Telnet-zaug

Thaum no tus taw tes, peb yog txaus me ntsis txog cov lub tshuab, tham txog qhov zoo thiab qhov tsis zoo ntawm cov Telnet. Tsis muaj teeb meem zoo li cas cov khoom yog, peb tsis tau hais tias nws yog kiag li devoid ntawm drawbacks. Thiab yog hais tias peb yuav sib tham txog cov kev pab uas twb tso tawm nyob rau hauv thaum ntxov 70-ies ntawm lub xyoo pua xeem, kom hnov qab no qhov tseeb, thiab tsis nqi nws.

Los ntawm cov cuab zoo ntsoov nco ntsoov lub simplicity, ceev thiab yooj yim raws tu qauv. Tsawg tshaj li ib feeb yooj yim neeg qhov chaw nyob mus rau lub xaiv neeg rau zaub mov TCP-chaw nres nkoj thiab koj yuav tsim ib lub zos davhlau ya nyob twg emulation. Saum toj no peb tham txog tus txheej txheem 23 ua hauj lwm qhov chaw nres nkoj. Nyob rau hauv qhov tseeb, ob leeg "mloog" thiab "tham" ntawm Telnet yuav ua tau nyob rau hauv tej qhov chaw nres nkoj. Tias qhov no yog raws tu qauv ntawm cov yooj.

Piv nrog rau lwm twg Telnet tej thaj chaw deb tswj hwm yog tsawg demanding rau lub processor. Nrog rau tam sim no pace ntawm kev loj hlob ntawm no kom zoo dua tej zaum yuav zoo li tsis tseem ceeb txaus, tab sis tsuas yog nyob rau thawj siab ib muag. Nrog rau txoj kev loj hlob ntawm technology, tsis txhob sawv ntsug tseem thiab lub tuam txhab uas muag uas ua software. Daim ntaub ntawv no yog ua ntau cumbersome, yuav tsum tau ntau disk qhov chaw, ntau lub cim xeeb, ntau haib processors. Utility uas los ntawm tus so ntawm lub ntsia software yuav haus ib tug me me npaum li cas ntawm chaw muab kev pab yuav pab tau heev.

Tsis zoo Telnet-raws tu qauv

Lub ntsiab thiab feem ntau uas tau tsav los ntawm ib tug tsis muaj Telnet - nkag tau mus rau tej thaj chaw deb ntaus ntawv yog ua dhau ib unencrypted channel. Lub tsuas lub chaw khuam siab rau cov attacker yog neeg authentication thaum qhib Telnet-kev sib kho, xws li cov uas yuav tsum tau ntawm tus ID nkag mus thiab lo lus zais. Txawm li cas los, qhov no cov ntaub ntawv no kuj kis tau rau hauv unencrypted daim ntawv. Yog li ntawd, yog tias ib tug neeg yuav nug ib tug lub hom phiaj hack nkag Telnet, kom txaus rau nws khiav rau ib tug luv luv lub sij hawm tuaj rau lawv sniffer (software rau "capture" pob). Tom qab ib co sij hawm, tus kws tswj txoj yuav qhib nws lub qhov Telnet kev sib kho, thiab qhia rau tej thaj chaw deb neeg rau zaub mov ID nkag mus thiab lo lus zais, uas ces yuav tau cuam tshuam los ntawm ib tug attacker nyob rau hauv lub meej. Nyob rau hauv no lwm sectional Telnet yog SSH (kev ruaj ntseg kev twb kev txuas). Yog li ntawd nws yog tsis pom zoo kom siv Telnet rau hauv lub thoob plaws nyob rau ntawm tes hauj lwm, piv txwv li, nyob rau koj muaj kev tiv thaiv chaw ua hauj lwm LAN. Nyob rau hauv tas li ntawd, nws yuav tsum tau nco ntsoov tias kev twb kev txuas mus rau lub neeg rau zaub mov yuav tsum tu ncua.

Xaus. Siv los yog tsis?

Ntawm cov hoob kawm, xav paub ntau tshaj plaub xyoo lawm, nws muaj lwm cov tej thaj chaw deb tswj hwm txoj kev. Heev nrov SSH. Nws yuav zoo li, Telnet yuav tsum tau zoo ntev dhau los. Tab sis nws yog tseem nyob rau hauv coob, tseem nyob rau hauv kev siv. Yog hais tias koj ua raws li tej yam muaj kev ruaj ntseg hauv paus ntsiab lus, tsis yog tsis nco qab tias koj cheeb tsam nyob network yuav tsum tau muaj kev tiv thaiv los ntawm sab nraum intrusion, Telnet siv yuav tsis ua mob rau koj cov khoom. Thaum koj tsis saib xyuas rau kev ruaj ntseg, tsis txhob tseg ib qho SSH, los yog lwm yam technology.

Telnet yog tseem siv nyob rau hauv qhov chaw xws li database connectivity, mus saib cov nyob rau ntawm network pab kiag li lawm (routers thiab keyboards), neeg rau zaub mov kho vajtse, thiab hais txog. D.