Namuhla ngizokutshela indlela yokuhlela inethiwekhi ehhovisi lenkampani encane. Sifinyelele esigabeni esithile ekuqeqesheni okunikezelwe ekushintsheni - namuhla sizoba nevidiyo yokugcina, siphetha isihloko sokushintshwa kweCisco. Vele, sizobuyela ekushintsheni, futhi esifundweni esilandelayo sevidiyo ngizokukhombisa imephu yomgwaqo ukuze wonke umuntu aqonde ukuthi yisiphi isiqondiso esihamba kuso nokuthi iyiphi ingxenye yesifundo esesivele siyingcweti.
Usuku lwe-18 lwamakilasi ethu luzoba ukuqala kwesihloko esisha esinikezelwe kuma-routers, futhi ngizonikela ngesifundo esilandelayo, Usuku lwe-17, enkulumweni yokubuyekeza ngezihloko ezifundwayo futhi ngikhulume ngezinhlelo zokuqeqeshwa okuqhubekayo. Ngaphambi kokuthi singene esihlokweni sesifundo sanamuhla, ngithanda ukuthi ukhumbule ukwabelana ngala mavidiyo, ubhalisele isiteshi sethu se-YouTube, uvakashele iqembu lethu le-Facebook kanye newebhusayithi. , lapho ungathola khona izimemezelo zochungechunge olusha lwezifundo.
Ngakho-ke ake siqale ukudala inethiwekhi yehhovisi. Uma uhlukanisa le nqubo ibe izingxenye, into yokuqala okudingeka uyenze ukuthola izidingo okufanele le nethiwekhi izanelise. Ngakho-ke ngaphambi kokuba uqale ukudala inethiwekhi yehhovisi elincane, inethiwekhi yasekhaya noma enye inethiwekhi yendawo, udinga ukwenza uhlu lwezidingo zayo.
Into yesibili okufanele uyenze ukuthuthukisa umklamo wenethiwekhi, unqume ukuthi uhlela kanjani ukuhlangabezana nezidingo, futhi okwesithathu ukudala ukucushwa ngokomzimba kwenethiwekhi.
Ake sithi sikhuluma ngehhovisi elisha okukhona kulo iminyango eyahlukene: Umnyango Wezokumaketha, Umnyango Wokuphatha, Umnyango Wezezimali Wama-Akhawunti, Umnyango Wezabasebenzi kanye Negumbi Leseva, lapho uzotholakala khona njengochwepheshe abasekela i-IT kanye nomqondisi wesistimu . Okulandelayo yigumbi lomnyango Wokuthengisa.
Izidingo zenethiwekhi eklanyelwe ukuthi abasebenzi beminyango ehlukene akufanele baxhumeke komunye nomunye. Lokhu kusho ukuthi, isibonelo, abasebenzi bomnyango wezokuthengisa abanamakhompyutha angu-7 bangashintshana kuphela amafayela nemiyalezo komunye nomunye ngenethiwekhi. Ngokufanayo, amakhompyutha amabili emnyangweni wokumaketha angakwazi ukuxhumana kuphela. Umnyango wezokuphatha, onekhompuyutha engu-1, esikhathini esizayo ungase unwebe kubasebenzi abambalwa. Ngendlela efanayo, umnyango wezezimali kanye nomnyango wezabasebenzi kufanele babe nenethiwekhi yabo ehlukene.
Lezi izidingo zenethiwekhi yethu. Njengoba ngishilo, igumbi leseva liyigumbi lapho uzohlala khona nalapho uzosekela khona lonke inethiwekhi yehhovisi. Njengoba lena kuyinethiwekhi entsha, ukhululekile ukukhetha ukucushwa kwayo nokuthi ungayihlela kanjani. Ngaphambi kokuthi siqhubeke, ngifuna ukukukhombisa ukuthi igumbi leseva libukeka kanjani.
Kukuwe, njengomphathi wenethiwekhi, ukuthi igumbi lakho leseva lizofana naleli eliboniswe esilayidini sokuqala noma eliboniswe kwesesibili.
Umehluko phakathi kwalezi ziphakeli ezimbili uncike ekutheni uqeqesheke kangakanani. Uma ulandela inkambiso yokulebula izintambo zenethiwekhi ngomaka nezitikha, ungagcina inethiwekhi yehhovisi lakho ihlelekile. Njengoba ubona, ekamelweni leseva yesibili zonke izintambo zihlelekile futhi iqembu ngalinye lezintambo lifakwe ithegi ebonisa ukuthi lezi zintambo ziya kuphi. Isibonelo, ikhebula elilodwa liya emnyangweni wokuthengisa, elinye liye kubaphathi, njalonjalo, okungukuthi, konke kukhonjisiwe.
Ungenza igumbi leseva njengoba kukhonjisiwe kusilayidi sokuqala uma unamakhompyutha angu-10 kuphela. Ungakwazi ukunamathisela izintambo ngokulandelana okungahleliwe futhi uhlele amaswishi ngandlela thile ngaphandle kwanoma iyiphi isistimu ekuhlelweni kwawo. Lokhu akuyona inkinga inqobo nje uma unenethiwekhi encane. Kodwa njengoba amakhompyutha engeziwe engezwa futhi inethiwekhi yenkampani ikhula, kuzofika iphuzu lapho uzochitha isikhathi sakho esiningi ukhomba zonke lezo zintambo. Ngephutha ungase usike ikhebula uya kukhompyutha noma ungaqondi ukuthi iyiphi ikhebula exhunywe kusiphi imbobo.
Ngakho-ke, ukuhlelwa okuhlakaniphile kokuhlelwa kwamadivayisi egumbini lakho leseva kuzuzisa wena. Okulandelayo okubalulekile ukukhuluma ngakho ukuthuthukiswa kwenethiwekhi - izintambo, amapulaki namasokhethi ekhebula. Sakhuluma kakhulu ngamaswishi, kodwa sakhohlwa ukukhuluma ngamakhebuli.
Ikhebula le-CAT5 noma le-CAT6 livame ukubizwa ngokuthi ipheya elisontekile elingavikelekile noma ikhebula le-UTP. Uma ususa umgodla wokuvikela wekhebula elinjalo, uzobona izintambo ezingu-8 ezisontekile ngamabili: oluhlaza nomhlophe-oluhlaza okotshani, osawolintshi nomhlophe-owolintshi, onsundu nomhlophe-nsundu, oluhlaza okwesibhakabhaka nomhlophe-oluhlaza okwesibhakabhaka. Kungani zisontekile? Ukugxambukela kwe-electromagnetic kwamasignali kagesi ezintanjeni ezimbili ezihambisanayo kudala umsindo, obangela ukuthi isignali ibe buthakathaka njengoba izintambo zikhula ngobude. Ukusonta izintambo kunxephezela ngokulinganayo imisinga ebangwayo, kunciphisa ukuphazamiseka futhi kwandisa ibanga lokudlulisela isignali.
Sinezigaba ezingu-6 zekhebula lenethiwekhi - kusukela ku-1 kuya ku-6. Njengoba isigaba sanda, ibanga lokudlulisela isignali liyakhula, ikakhulukazi ngenxa yokuthi izinga lokusonta kwamapheya liyakhula. Ikhebula le-CAT6 linamajika amaningi ngobude beyunithi ngayinye kune-CAT5, ngakho libiza kakhulu. Ngokufanelekile, izintambo zeSigaba 6 zihlinzeka ngesivinini sokudlulisa idatha ngebanga elide. Izigaba zekhebula ezivame kakhulu emakethe ziyi-5, 5e kanye ne-6. Ikhebula le-5e liyisigaba esithuthukisiwe sesi-5, sisetshenziswa izinkampani eziningi, kodwa lapho kwakhiwa amanethiwekhi ehhovisi esimanje zisebenzisa ikakhulukazi i-CAT6.
Uma ukhumula le khebuli emgodleni wayo izoba namapheya angu-4 asontekile njengoba kukhonjisiwe kusilayidi. Futhi unesixhumi se-RJ-45 esiqukethe izikhonkwane zensimbi ezingu-8. Kufanele ufake izintambo zekhebula kusixhumi futhi usebenzise ithuluzi lokukhiya elibizwa ngokuthi i-crimper. Ukuze unqande izintambo ezipheya ezisontekile, kufanele wazi ukuthi uzibeka kanjani ngendlela efanele kusixhumi. Izikimu ezilandelayo zisetshenziselwa lokhu.
Kukhona i-direct and crossover, noma i-crossover crimping yezintambo ezisontekile. Esimweni sokuqala, uxhuma izintambo zombala ofanayo komunye nomunye, okungukuthi, uxhuma ucingo olumhlophe-owolintshi kuphini elingu-1 lesixhumi se-RJ-45, esolintshi siye kwesesibili, ucingo olumhlophe-oluhlaza ku- okwesithathu njalo njalo, njengoba kukhonjisiwe emdwebeni.
Ngokuvamile, uma uxhuma amadivaysi angu-2 ahlukene, isibonelo, iswishi nehabhu noma iswishi kanye nerutha, usebenzisa i-crimping eqondile. Uma ufuna ukuxhuma amadivaysi afanayo, isibonelo ukushintshela kwenye inkinobho, kufanele usebenzise i-crossover. Kuzo zombili izimo, intambo yombala ofanayo ixhunywe ocingweni lombala ofanayo; umane uguqule ukuma okuhlobene kwezintambo nezikhonkwane zokuxhuma.
Ukuze uqonde lokhu, cabanga ngocingo. Ukhuluma kumbhobho wefoni futhi ulalele umsindo ovela esipikheni. Uma ukhuluma nomngane wakho, okushoyo kumbhobho kuvela kusipika socingo lwakhe, futhi lokho umngane wakho akushoyo kumbhobho wakhe kuphuma kusipika sakho.
Yilokhu okuyikho ukuxhumana kwe-crossover. Uma uxhuma imakrofoni yakho ndawonye futhi uphinde uxhume izipikha zakho, amafoni ngeke asebenze. Lesi akusona isifaniso esihle kakhulu, kodwa ngithemba ukuthi uthola umqondo we-crossover: intambo yokwamukela iya ocingweni lokudlulisela, futhi ucingo lokudlulisela luya kumamukeli.
Ukuxhumeka okuqondile kwamadivayisi ahlukene kusebenza kanje: ukushintshwa kanye ne-router kunamachweba ahlukene, futhi uma izikhonkwane 1 no-2 zokushintsha zihloselwe ukudluliselwa, khona-ke izikhonkwane 1 no-2 zomzila zihloselwe ukwamukela. Uma amadivaysi afana, khona-ke othintana nabo 1 no-2 kokubili kokushintsha kokuqala nokwesibili basetshenziselwa ukudlulisa, futhi njengoba izintambo zokudlulisela zingakwazi ukuxhunywa ezintanjeni ezifanayo, othintana nabo 1 no-2 bokudlulisa i-switch yokuqala baxhunywe ku-. othintana nabo 3 no-6 weswishi yesibili, okungukuthi, nomamukeli. Yilokho okushiwo i-crossover.
Kodwa namuhla lezi zinhlelo ziphelelwe yisikhathi, esikhundleni salokho kusetshenziswa i-Auto-MDIX - isikhombimsebenzisi sokudlulisa idatha esincike endaweni ezungezile. Ungathola ngakho ku-Google noma ku-athikili ye-Wikipedia, angifuni ukuchitha isikhathi kulokho. Ngamafuphi, lesi sikhombimsebenzisi sikagesi nesemishini sikuvumela ukuthi usebenzise noma iyiphi ikhebula, njengokuxhuma okuqondile, futhi idivayisi ehlakaniphile ngokwayo izonquma ukuthi yiluphi uhlobo lwekhebula olusetshenziswayo - umthumeli noma umamukeli, futhi uyixhume ngokufanele.
Manje njengoba sesibheke ukuthi izintambo zidinga ukuxhunywa kanjani, ake sidlulele ezidingweni zokuklama inethiwekhi. Masivule i-Cisco Packet Tracer futhi sibone ukuthi ngibeke umdwebo wehhovisi lethu njengendawo engaphansi yongqimba oluphezulu lokuthuthukiswa kwenethiwekhi. Njengoba iminyango ehlukene inamanethiwekhi ahlukene, kungcono ukuwahlela ngokushintsha okuzimele. Ngizobeka iswishi eyodwa egumbini ngalinye, ukuze sibe nengqikithi yokushintsha okuyisithupha ukusuka ku-SW0 kuye ku-SW5. Bese ngizohlela ikhompuyutha engu-1 yesisebenzi sasehhovisi ngasinye - isamba sezingcezu eziyi-12 ukusuka ku-PC0 kuye ku-PC11. Ngemva kwalokho, ngizoxhuma ikhompuyutha ngayinye kusishintshi ngisebenzisa ikhebula. Lolu hlelo luvikeleke ngendlela efanele, idatha yomnyango owodwa ayifinyeleleki komunye umnyango, awunalwazi ngempumelelo noma ukwehluleka komunye umnyango, futhi kuyinqubomgomo yehhovisi elihle. Mhlawumbe othile osophikweni lwezokuthengisa unamakhono okugebenga futhi angagqekeza amakhompyutha omnyango wezokukhangisa ngenethiwekhi eyabiwe futhi asuse imininingwane, noma abantu eminyangweni ehlukene akufanele nje babelane ngedatha ngenxa yezizathu zebhizinisi, njll., ngakho-ke amanethiwekhi ahlukene asiza ukuvimbela amacala afanayo. .
Inkinga yilena. Ngizongeza ifu ngaphansi kwesithombe - lena i-inthanethi, lapho ikhompuyutha yomphathi wenethiwekhi egunjini leseva ixhumeke kuyo ngeswishi.
Awukwazi ukunikeza umnyango ngamunye ngokufinyelela komuntu ngamunye ku-inthanethi, ngakho-ke kufanele uxhume amaswishi omnyango ekushintsheni kwegumbi leseva. Yilokhu kanye okuzwakalayo isidingo sokuxhuma i-inthanethi yehhovisi - wonke amadivayisi angawodwana kufanele axhume kuswishi evamile ekwazi ukufinyelela ngaphandle kwenethiwekhi yehhovisi.
Lapha sinenkinga eyaziwa kakhulu: uma sishiya inethiwekhi ngezilungiselelo ezizenzakalelayo, wonke amakhompyutha azokwazi ukuxhumana ngoba azoxhunywa ku-VLAN1 yomdabu efanayo. Ukuze sigweme lokhu, sidinga ukudala ama-VLAN ahlukene.
Sizosebenza nenethiwekhi ye-192.168.1.0/24, esizoyihlukanisa ibe ama-subnets amancane amaningana. Ake siqale ngokwakha inethiwekhi yezwi i-VLAN10 nesikhala sekheli 192.168.1.0/26. Ungabheka etafuleni kwesinye sezifundo zevidiyo zangaphambilini futhi ungitshele ukuthi bangaki abasingathi abazoba khona kule nethiwekhi - /26 isho izingcezu ezibolekiwe ezi-2 ezihlukanisa inethiwekhi zibe izingxenye ezi-4 zamakheli angama-64, ngakho-ke kuzoba nama-IP amahhala angama-62. amakheli ku-subnet yakho yabasingathi. Kufanele sakhe inethiwekhi ehlukile yokuxhumana ngezwi ukuze sihlukanise ukuxhumana ngezwi nokuxhumana kwedatha. Lokhu kufanele kwenziwe ukuze kuvinjelwe umhlaseli ekuxhumekeni engxoxweni yocingo futhi asebenzise i-Wireshark ukuze asuse ukubethela idatha esakazwa esiteshini esifanayo nokuxhumana ngezwi.
Ngakho, i-VLAN10 izosetshenziselwa kuphela i-IP telephony. I-slash 26 isho ukuthi amafoni angama-62 angaxhunywa kule nethiwekhi. Okulandelayo, sizodala inethiwekhi yomnyango wokuphatha i-VLAN20 enendawo yekheli engu-192.168.1.64/27, okungukuthi, ububanzi bekheli lenethiwekhi buzoba ngu-32 namakheli angu-30 abamba i-IP avumelekile. I-VLAN30 izonikezwa umnyango wezokumaketha, i-VLAN40 izoba umnyango wezokuthengisa, i-VLAN50 izoba umnyango wezezimali, i-VLAN60 izoba umnyango wakwa-HR, bese i-VLAN100 ibe inethiwekhi yomnyango we-IT.
Masifake amalebula lawa manethiwekhi kumdwebo we-topology yenethiwekhi yehhovisi bese siqala nge-VLAN20 ngoba i-VLAN10 ibekelwe ucingo. Ngemva kwalokhu, singacabanga ukuthi sithuthukise umklamo wenethiwekhi entsha yehhovisi.
Uma ukhumbula, ngithe igumbi lakho leseva lingaba nesakhiwo esinesiphithiphithi noma lihlelwe ngokucophelela. Kunoma yikuphi, udinga ukudala amadokhumenti - lokhu kungaba amarekhodi ephepheni noma kukhompyutha, okuzorekhoda isakhiwo senethiwekhi yakho, ichaze wonke ama-subnets, uxhumano, amakheli e-IP kanye nolunye ulwazi oludingekayo emsebenzini womlawuli wenethiwekhi. Kulokhu, njengoba inethiwekhi ikhula, uzohlala ulawula isimo. Lokhu kuzokusiza ukuthi wonge isikhathi futhi ugweme izinkinga lapho uxhuma amadivayisi amasha futhi udala ama-subnet amasha.
Ngakho-ke, ngemva kokudala ama-subnet ahlukene omnyango ngamunye, okungukuthi, sikwenze ukuze amadivaysi akwazi ukuxhumana kuphela nge-VLAN yawo, kuphakama umbuzo olandelayo. Njengoba ukhumbula, ukushintshwa kwegumbi leseva kuyisixhumi esimaphakathi lapho wonke amanye amaswishi axhumeke khona, ngakho-ke kufanele yazi ngawo wonke amanethiwekhi ehhovisi. Nokho, shintsha i-SW0 idinga kuphela ukwazi nge-VLAN30 ngoba awekho amanye amanethiwekhi kulo mnyango. Manje ake ucabange ukuthi umnyango wethu wezokuthengisa usukhulile futhi kuzodingeka sidlulisele ezinye zezisebenzi emagcekeni omnyango wezokuthengisa. Kulokhu, sizodinga ukudala inethiwekhi ye-VLAN40 emnyangweni wokumaketha, ozodinga futhi ukuxhunywa ku-SW0 switch.
Kwenye yamavidiyo adlule, sixoxe ngalokho okubizwa ngokuthi ukuphathwa kwesixhumi esibonakalayo, okungukuthi, siye kusixhumi esibonakalayo se-VLAN1 futhi sinike ikheli le-IP. Manje sidinga ukumisa amakhompuyutha omnyango wokuphatha angu-2 ukuze axhumeke kumachweba wokufinyelela weswishi ahambisana ne-VLAN30.
Ake sibheke ikhompyutha yakho ye-PC7, lapho wena, njengomphathi wenethiwekhi, kufanele ulawule ukude wonke amaswishi enethiwekhi. Enye indlela yokuqinisekisa ukuthi lokhu ukuya emnyangweni wokuphatha bese ulungisa ngokuzenzakalelayo iswishi ye-SW0 ukuze ixhumeke kukhompyutha yakho. Kodwa-ke, kufanele ukwazi ukumisa le swishi ukude ngoba ukulungiselelwa kwesayithi akwenzeki ngaso sonke isikhathi. Kodwa uku-VLAN100 ngoba i-PC7 ixhunywe kumbobo yokushintsha ye-VLAN100.
Ukushintsha i-SW0 awazi lutho nge-VLAN100, ngakho-ke kufanele sinike i-VLAN100 kwelinye lamachweba ayo ukuze i-PC7 ikwazi ukuxhumana nayo. Uma wabela ikheli le-IP le-VLAN30 kusixhumi esibonakalayo se-SW0, i-PC0 ne-PC1 kuphela engaxhuma kuyo. Nokho, kufanele ukwazi ukuphatha le swishi usuka kukhompuyutha yakho ye-PC7 eyingxenye yenethiwekhi ye-VLAN100. Ngakho-ke, sidinga ukudala i-interface ye-VLAN0 ekushintsheni i-SW100. Kumelwe senze okufanayo namaswishi asele - wonke lawa madivayisi kufanele abe nesixhumi esibonakalayo se-VLAN100, lapho kufanele sabelane khona ikheli le-IP ukusuka kububanzi bamakheli asetshenziswa i-PC7. Leli kheli lithathwe ku-192.168.1.224/27 ububanzi be-IT VLAN futhi labelwe zonke izimbobo zokushintshela lapho i-VLAN100 yabelwe khona.
Ngemva kwalokhu, usuka egumbini leseva, usuka kukhompuyutha yakho, uzokwazi ukuthintana nanoma yiziphi izinguquko ngephrothokholi ye-Telnet futhi uzilungiselele ngokuhambisana nezidingo zenethiwekhi. Kodwa-ke, njengomlawuli wenethiwekhi, udinga futhi ukufinyelela kulawa maswishi usebenzisa ishaneli yokuxhumana yangaphandle, noma ngaphandle kokufinyelela kwebhendi. Ukuze unikeze ukufinyelela okunjalo, udinga idivayisi ebizwa ngokuthi i-Terminal Server, noma iseva yetheminali.
Ngokusho kwe-topology yenethiwekhi enengqondo, zonke lezi zishintshi zitholakala emakamelweni ahlukene, kodwa ngokomzimba zingafakwa ku-rack evamile ekamelweni leseva. Ungafaka iseva yetheminali endaweni yokubeka efanayo, lapho wonke amakhompyutha azoxhunywa khona. Izintambo ezibonakalayo ziphuma kulesi siphakeli, ekugcineni lapho kukhona isixhumi se-Serial, futhi ngakolunye uhlangothi kukhona ipulaki evamile yekhebula le-CAT5. Wonke lawa makhebuli axhunywe ezimbobeni zekhonsoli zamaswishi afakwe endaweni yokubeka. Ikhebula ngalinye lokubona lingaxhuma amadivaysi angu-8. Le seva yetheminali kufanele ixhunywe kukhompyutha yakho ye-PC7. Ngakho, nge-Terminal Server ungakwazi ukuxhuma embobeni yekhonsoli yanoma yimaphi amaswishi usebenzisa isiteshi sokuxhumana sangaphandle.
Ungase ubuze ukuthi kungani lokhu kudingekile uma wonke lawa madivayisi atholakala eduze kwakho ekamelweni elilodwa leseva. Into ewukuthi ikhompyutha yakho ingaxhuma kuphela ngqo embobeni eyodwa ye-console. Ngakho-ke, ukuze uhlole amaswishi amaningi, uzodinga ukunqamula ngokoqobo ikhebula kudivayisi eyodwa ukuze uxhumeke kwenye. Uma usebenzisa iseva yetheminali, udinga nje ukucindezela ukhiye owodwa kukhibhodi yekhompyutha yakho ukuze uxhume embotsheni yekhonsoli yokushintsha #0, ukuze ushintshele kwenye iswishi udinga nje ukucindezela omunye ukhiye, njalonjalo. Ngakho-ke, ungakwazi ukulawula noma yikuphi ukushintsha ngokucindezela izinkinobho. Ngakho-ke, ngaphansi kwezimo ezijwayelekile, udinga iseva yokugcina ukuze uphathe amaswishi lapho uxazulula izinkinga zenethiwekhi.
Ngakho-ke, sesiqedile ngomklamo wenethiwekhi futhi manje sizobheka izilungiselelo eziyisisekelo zenethiwekhi.
Idivayisi ngayinye idinga ukunikezwa igama lomethuleli, okufanele ukwenze usebenzisa umugqa womyalo. Ngiyethemba ukuthi ngenkathi uqeda lesi sifundo, uzothola ulwazi olusebenzayo ukuze wazi ngekhanda imiyalo edingekayo ukuze unikeze igama lomethuleli, udale isibhengezo sokwamukela, usethe iphasiwedi ye-console, usethe iphasiwedi ye-Telnet, futhi unike amandla ukwazisa ngephasiwedi. . Kufanele wazi ukuthi uliphatha kanjani ikheli le-IP leswishi, unikeze isango elizenzakalelayo, ukhubaze idivayisi ngokomthetho, ufake imiyalo yokuphika, futhi ulondoloze izinguquko ezenziwe kuzilungiselelo zokushintsha.
Uma ugcwalisa zonke izinyathelo ezintathu: nquma izidingo zenethiwekhi, dweba umdwebo wenethiwekhi yesikhathi esizayo okungenani ephepheni bese udlulela kuzilungiselelo, ungakwazi ukuhlela kalula igumbi lakho leseva.
Njengoba ngike ngasho, cishe sesiqedile ukufunda ama-switch, nakuba sizobuyela kubo, ngakho-ke ezifundweni ezilandelayo zevidiyo sizodlulela kuma-routers. Lesi isihloko esithakazelisa kakhulu, engizozama ukusihlanganisa ngokugcwele ngangokunokwenzeka. Sizobheka ividiyo yokuqala mayelana nama-routers ngesifundo, futhi isifundo esilandelayo, Usuku lwe-17, ngizonikela emiphumeleni yomsebenzi owenziwe ekutadisheni inkambo ye-CCNA, ngizokutshela ukuthi iyiphi ingxenye yezifundo osuvele wazi kahle. nokuthi kungakanani okusafanele ukufunde, ukuze wonke umuntu aqonde ngokucacile ukuthi isiphi isigaba sokufunda asefinyelele kuso.
Ngihlela ukuthumela izivivinyo zokuzilolonga kuwebhusayithi yethu maduze, futhi uma ubhalisa, uzokwazi ukwenza izivivinyo ezifanayo nalezo ozozithatha ukuze uhlole i-CCNA.
Siyabonga ngokuhlala nathi. Uyazithanda izindatshana zethu? Ufuna ukubona okuqukethwe okuthakaselayo okwengeziwe? Sisekele ngokufaka i-oda noma ngokuncoma kubangani, Isaphulelo sika-30% sabasebenzisi be-Habr ku-analogue ehlukile yamaseva eleveli yokungena, esungulwe yithi ngenxa yakho: (itholakala nge-RAID1 kanye ne-RAID10, kufika kuma-cores angu-24 kuze kufike ku-40GB DDR4).
I-Dell R730xd ishibhile izikhathi ezi-2? Lapha kuphela eNetherlands! I-Dell R420 - 2x E5-2430 2.2Ghz 6C 128GB DDR3 2x960GB SSD 1Gbps 100TB - isuka ku-$99! Funda mayelana
Source: www.habr.com