Saib qhib cov chaw nres nkoj hauv Ubuntu

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Ib lub khoos kas twg sib txuas lus nrog lwm tus los ntawm Is Taws Nem lossis hauv qhov chaw sib tham. Cov chaw nres nkoj tshwj xeeb yog siv rau qhov no, feem ntau yog TCP thiab UDP. Koj tuaj yeem pom qhov twg ntawm txhua qhov chaw nres nkoj tam sim no raug siv, uas yog, suav tias yog qhib, siv cov cuab yeej muaj nyob hauv kev ua haujlwm. Cia wb mus saib ze rau cov txheej txheem no siv tus qauv Ubuntu kev xa khoom.

Saib qhib cov chaw nres nkoj hauv Ubuntu

Txhawm rau kom ua tiav txoj haujlwm no, peb hais kom siv cov txheej txheem txheem hluav taws xob thiab cov khoom siv ntxiv uas tso cai rau koj saib xyuas lub network. Txawm tias cov neeg siv tsis tau dhau los yuav muaj peev xwm nkag siab txog cov pawg, vim peb yuav muab cov lus piav qhia ntawm txhua. Peb xav kom koj paub koj tus kheej nrog ob qho kev siv sib txawv hauv qab no.

Txoj Kev 1: lsof

Lub chaw tso dej hu ua lsof soj ntsuam txhua qhov system sib txuas thiab qhia cov ncauj lus kom ntxaws txog lawv txhua ntawm qhov screen. Koj tsuas yog yuav tsum tau cob qhov kev sib cav kom raug thiaj li tau txais cov ntaub ntawv koj nyiam.

  1. Khiav "Chaw Nres Tsheb" los ntawm cov ntawv qhia zaub mov lossis cov lus txib Ctrl + kev + T.
  2. Sau hais kom uasudo lsof -ithiab nyem Sau.
  3. Sau tus password rau lub hauv paus nkag. Nco ntsoov tias thaum ntaus ntawv, cov cim raug ntaus, tab sis tsis tshwm rau hauv cov console.
  4. Tom qab tag nrho, koj yuav pom cov npe ntawm txhua qhov kev sib txuas nrog txhua qhov ntsuas ntawm kev txaus siab.
  5. Thaum daim ntawv teev cov kev sib txuas yog qhov loj, koj tuaj yeem lim tawm qhov txiaj ntsig kom cov nqi hluav taws xob qhia tsuas yog cov kab uas muaj qhov chaw nres nkoj uas koj xav tau muaj. Qhov no yog ua tiav los ntawm kev tawm tswv yim.sudo lsof -i | grep 20814qhov twg 20814 - tus naj npawb ntawm qhov chaw nres nkoj uas yuav tsum tau.
  6. Nws tseem tshua tsuas yog kawm txog cov txiaj ntsig tau tshwm sim.

Txoj Kev 2: nmap

Nmap qhib software kuj tseem muaj peev xwm ua txoj haujlwm ntawm scanning tes hauj lwm rau kev sib txuas, tab sis nws tau nqis tes ua qhov kev sib txawv me ntsis. Nmap kuj tseem muaj version nrog lub graphical interface, tab sis hnub no nws yuav tsis muaj txiaj ntsig zoo rau peb, vim nws tsis yog qhov zoo xav kom siv nws. Kev ua haujlwm hauv cov nqi hluav taws xob zoo li no:

  1. Tua tawm lub console thiab teeb tsa lub chaw tso hluav taws xob los ntawm kev nkag mussudo apt-mus nruab nmap.
  2. Tsis txhob hnov ​​qab sau tus password los muab kev nkag.
  3. Paub meej tias yuav ntxiv cov ntawv tshiab rau hauv cov kab ke.
  4. Tam sim no, los qhia cov ntaub ntawv tsim nyog, siv cov lus txibnmap localhost.
  5. Txheeb xyuas cov ntaub ntawv ntawm qhib cov chaw nres nkoj.

Cov kev qhia saum toj no yog tsim nyog rau txais cov chaw nres nkoj sab hauv, tab sis yog tias koj txaus siab rau cov chaw nres nkoj sab nraud, koj yuav tsum tau ua qee yam txawv:

  1. Nrhiav kom paub koj li chaw nyob IP ntawm Icanhazip cov kev pabcuam online. Ua li no, hauv console, nkagwget -O - -q icanhazip.comthiab nyem Sau.
  2. Nco ntsoov koj lub chaw nyob network.
  3. Tom qab ntawd, khiav lub scan rau nws los ntawm kev nkag musnmapthiab koj IP.
  4. Yog tias koj tsis tau tshwm sim, ces txhua lub ports raug kaw. Yog qhib, lawv yuav tshwm sim hauv "Chaw Nres Tsheb".

Peb tau kuaj ob txoj hauv kev, vim tias txhua tus ntawm lawv nrhiav cov ntaub ntawv ntawm nws tus kheej cov algorithms. Koj tsuas yog yuav tsum xaiv qhov kev xaiv zoo tshaj plaws thiab los ntawm kev saib xyuas lub network kom paub seb cov chaw nres nkoj twg tam sim no qhib.

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