Sniffer passwords, network. Sniffer - yog dab tsi?

Muaj ntau cov neeg siv ntawm computer systems tau hnov ntawm xws li ib tug tshaj plaws raws li ib tug "sniffer". Yuav ua li cas nws yog, txawm li cas los, rau siab xav txog tej yam tsis yog tag nrho. Ntxiv mus, niaj hnub no nws yog ua tau rau faib ib tug heev tsawg vajvoog ntawm cov neeg uas paub yuav ua li cas thiab nyob qhov twg yuav siv xws li ib tug kev pab cuam thiab "hlau" khoom. Wb sim txheeb seb yog dab tsi yog dab tsi.

Sniffer: yog dab tsi?

Peb pib nrog lub ntsiab txhais ntawm lub sij hawm. Kom peb to taub lub essence ntawm qhov teeb meem, nws yuav tsum tau ib qho yooj yim los mus pib txhais lo lus "sniffer". Yuav ua li cas yog nws? Lub literal translation ntawm cov lus Askiv tswv yim sniffer yog "Sniffer".

Cias muab, nws yog ib qho kev pab los yog cov khoom uas muaj peev xwm ntawm raws li cov tsheb tsom xam nyob rau hauv daim ntawv ntawm cov packets kis los yog tau txais cov ntaub ntawv rau lub network rau retrieve cov ntaub ntawv koj xav tau, seb nws yog lwm network IP-chaw nyob, encrypted passwords los yog pub leej twg paub cov ntaub ntawv. Lawv tus kheej sniffers yuav siv tau los ua mob thiab kev pab.

Lub ntsiab yam ntawm sniffers

Raws li rau lub ntsiab ntawm ntau yam sniffers, tej zaum nws yuav tsis tau yuav lub software uas yog ntsia tau rau ib tug computer davhlau ya nyob twg, los yog ua nyob rau hauv daim ntawv ntawm ib tug online applet.

Feem ntau koj yuav nrhiav tau sniffers nyob rau hauv daim ntawv ntawm "hlau" ntawm cov khoom los yog yam uas muab thiab software, thiab lub cev mob. Raws li, qhov tseem ceeb kev faib sniffers muaj xws li cov nram qab no:

• software;
• hardware;
• firmware;
• online Cheebtsam.

Thaum cov thawj kev faib yuav qhia tau los ntawm ntxiv tsom xam thiab sib cais cov kev taw qhia. Piv txwv li, feem ntau hom xws li sniffer passwords, uas nws lub ntsiab hauj lwm yog los extract los ntawm cov ntaub ntawv packets qhib los yog encrypted codes mus saib tau tej ntaub ntawv. Muaj sniffers uas tsuas muab xam los ntawm ib lub davhlau ya nyob twg IP-chaw nyob nyob rau hauv thiaj li yuav nkag tau rau cov neeg siv computer thiab muab cia rau hauv nws cov ntaub ntawv.

Yuav ua li cas yog nws ua hauj lwm?

Technology cuam tshuam network tsheb yog muaj feem xyuam tsuas rau tes hauj lwm raws li TCP / IP twg thiab siv kev twb kev txuas ntawm Ethernet network phaib. Wireless tes hauj lwm kuj muaj peev xwm analyzed, chiv lawm vim hais tias nyob rau hauv xws li ib tug system muaj ib tug wired kev twb kev txuas (mus rau lub router, tus giver mus rau ib tug laptop los yog desktop PC).

Cov ntaub ntawv kis tau tus mob nyob rau hauv lub network tsis yog ib chav tsev, thiab ntawm nws cov kev faib mus rau hauv packets thiab txheem theem, uas, thaum tau txais lub txais sab ua ke rau hauv ib chav tsev xwb. Program-sniffer yog tau taug qab tag nrho cov tau kis tau tus mob raws ntawm txhua ya, thiab nyob rau lub sij hawm ntawm kev hloov (forwarding) tiv thaiv packets mus rau lub pab kiag li lawm kev cob cog rua rau lub network (routers, hubs, keyboards, computers los yog mobile pab kiag li lawm) uas ua extract cov ntaub ntawv, uas tej zaum yuav muaj qhov tib passwords. Yog li, txhawm rau lo lus zais ua ib tug ntau cov txheej txheem, tshwj xeeb tshaj yog yog hais tias nws yog tsis encrypted.

Tab sis txawm thaum uas siv cov advanced password encryption technologies, nws yuav kis tau ua ke nrog tus yuam sij coj. Yog hais tias nws yog qhib tus yuam sij rau tau txais cov lo lus zais yooj yim. Yog hais tias tus yuam sij yog encrypted, ib tug attacker tau yooj yim siv tej software-decoder, uas thaum kawg yuav ua rau ntes cov ntaub ntawv.

Qhov twg siv sniffer network?

Teb ntawm kev siv sniffers yog heev txawv. Kuv tsis xav hais tias tej yooj yim sniffer nyob rau hauv Lavxias teb sab yog tsuas txhais tau tias los ntawm hackers sim ua ib qho kev tsis tau tso cai cuam tshuam nyob rau hauv lub network tsheb nyob rau hauv thiaj li yuav tau ib co ntaub ntawv tseem ceeb.

Nrog sib npaug zos kev vam meej sniffers yuav siv tau los ntawm cov chaw kho mob uas yog raws li nyob rau hauv lawv cov kev soj ntsuam ntawm cov ntaub ntawv cov tsheb ua nws cov neeg siv, mus pab tau txoj kev ruaj ntseg ntawm lub computer systems. Txawm tias tej khoom thiab daim ntaub ntawv xa mus antisnifferami, nyob rau hauv qhov tseeb nws yog lub feem ntau zoo tib yam sniffers nyiam mus ua hauj lwm nyob rau hauv kev coj rov qab.

Ntawm cov hoob kawm, cov neeg siv ntawm tej yam ua uas tsis muaj ib tug ceeb toom rau kws kho mob, thiab ua npaum li cas kev txiav txim zoo rau hauv no. Private neeg siv yog tsis zoo li yuav tsum tau ntawm nws tus kheej coj tej countermeasures. Thiab feem ntau tus kws kho mob ntawm cov tsheb khiav tsom xam yog qho tseem ceeb heev vim hais tias nws muaj peev xwm tiv thaiv kom txhob npaj siab mus cuam tshuam nyob rau hauv lub chaw ua hauj lwm ntawm sab nraud tes hauj lwm, rau cais nkag tau mus rau kis packets, koj muaj peev xwm taug qab tsis tau tso cai nkag tau mus rau lawv ntawm yam tsawg kawg ntawm lub hauv paus ntawm lub tib lub peripherals IP-chaw nyob, ua kom kev cuam tshuam cov kis feem. Tab sis qhov no yog ib tug heev yooj yim piv txwv li, vim hais tias tag nrho cov technology yog ntau npaum li cas complex.

Txiav txim hauv lub xub ntiag ntawm sniffer

Thaum tawm hauv ib sab xws li ib tug tshaj plaws raws li ib tug "sniffer". Yuav ua li cas nws yog, yog ib tug me ntsis kom meej tam sim no pom nyob rau hauv dab tsi thaj chaw muaj peev xwm txhais tau ib tug "wiretap" sniffer muaj.

Yog hais tias lub computer system yog OK, thiab ib tug network los yog hauv Internet kev twb kev txuas yog khiav ntseeg nkaws, thawj kos npe rau ntawm sab nraum pab yog los txo cov ntaub ntawv tus nqi, piv rau uas tau hais los ntawm lub ISP. Nyob rau hauv lub qhov rais-raws li systems los ntawm standard txhais tau tias los mus txiav txim cov kev ceev ntawm qhov nruab nrab neeg siv yuav tsis yog txawm tias thaum lub network raws li txoj cai ntawv qhia zaub mov hu los ntawm txhaj rau lub icon mus cuag. Ntawm no koj qhia kom meej xwb tus xov tooj ntawm xa thiab tau txais packets.

Ib yam li ntawd, kev kawm ntawv nyob rau hauv lub "ua hauj lwm saib xyuas" zaub yam ntaub ntawv nyob rau hauv tag nrho, ib yam ceev yuav txo tau yuav txuas nrog rau cov kev txwv ntawm cov kev pab uas nkag yog nqa tawm. Nws yog qhov zoo tshaj plaws los mus siv tshwj xeeb cov cuab yeej, analyzers, uas, los ntawm txoj kev, thiab ua hauj lwm nyob rau hauv lub hauv paus ntsiab lus ntawm sniffer. Qhov tshaj plaws xwb koj yuav tsum tau them cov xim, qhov no yog tsuas yog lub fact tias qhov no hom ntawm kev pab cuam tom qab installation yuav ua uas tsis tshwm sim vim kev tsis sib haum nrog firewalls (a firewall ua-nyob rau hauv lub qhov rais los yog thib peb-tog software thiab kho vajtse "hlau" hom). Yog li ntawd, thaum lub sij hawm ntawm tus tsom xam cov ntxaij lim dej, nws yog ntshaw kom lov tes taw.

xaus

Ntawm no, ua tau, thiab txhua yam ua nrog xws li ib tug tshaj plaws raws li ib tug "sniffer". Yuav ua li cas yog nws nyob rau hauv cov nqe lus ntawm Hacking cov cuab yeej los yog kev tiv thaiv, nyob rau hauv tus, nws yuav tsum muaj tseeb. Nws tseem mus ntxiv ib ob peb lo lus hais txog online applets. Lawv cia li yuav feem ntau siv los ntawm hackers mus nrhiav tau tus IP-qhov chaw nyob ntawm tus neeg mob thiab nkag tau mus rau pub leej twg paub cov ntaub ntawv. Ntxiv mus, hais tias xws li hauv internet-sniffer yog nws direct muaj nuj nqi, tus IP-qhov chaw nyob ntawm lub attacker kuj hloov. Nyob rau hauv no hais txog, cov applets yog dog dig zoo li ib tug anonymous npe servers uas nkaum qhov real neeg siv IP. Rau pom tseeb yog vim li cas, cov ntaub ntawv rau cov hauv internet pab yog tsis raws li cuam nrog lwm tus computer los ntawm txoj kev no, zoo li, thiab officially stationed cov kev pab cuam yog txhaum cai thiab lub txim.