Ikhompyutheni yakho kunye nomshicileli bobabini iinethiwekhi zomnatha
I-node nayiphi na isistim somzimba ngaphakathi kwintanethi yezinye izixhobo ezikwazi ukuthumela, ukufumana, kunye / okanye ukuthumela ulwazi. Ikhompyuta yona node eqhelekileyo, kwaye idla ngokuba yi- node yekhompyutha okanye i- intanethi .
Iimodem, iitshintshi, ii-hubs, amabridri, amaseva kunye nabashicileli nazo ziyi-node, njengokuba ezinye iifowuni ezidibanisa kwi-WiFi okanye kwi-Ethernet. Ngokomzekelo, intanethi edibanisa iikhomputer ezintathu kunye nomshicileli omnye, kunye nezinye iifowuni ezingenazintambo, zinamanani ayisithandathu.
Iimpawu ngaphakathi kwenethiwekhi yecomputer kufuneka zibe nolunye uhlobo lokuchonga, njenge- idilesi ye - IP okanye idilesi ye-MAC, ukuba iqwalaselwe ngamanye amacebo enethiwekhi. I-node ngaphandle kwalolu lwazi, okanye enye ethathwe ngaphandle, ayikho imisebenzi njengemodeli.
Yintoni iNode yeNethiwekhi?
Amanethiwekhi omnxeba amaqumrhu okwenyama enza inethwekhi, ngoko ke kaninzi kukho iintlobo ezimbalwa ezahlukeneyo.
I-node yenethiwekhi idla naluphi na isistim esamkelayo kwaye sithetha into ethile ngokusebenzisa intanethi, kodwa kunokuba isenokuthi ifumane kwaye igcine idatha, idlulisele ulwazi kwenye indawo, okanye yenza kwaye ithumele idatha.
Umzekelo, ikhowudi yekhompyutheni ingaphinda ibuyise iifayile kwi-intanethi okanye ithumele i-imeyile, kodwa ingasasaza iividiyo kwaye ilande ezinye iifayile. Umshicileli womnatha unokufumana izicelo zokuprinta kwezinye iifowuni kwinethwekhi ngelixa i-scanner ingathumela imifanekiso kwiikhompyutha. I- router inquma ukuba yeyiphi idatha edluliselweyo kwiidivaysi ezicela ukulandelwa kwefayili kwinethiwekhi, kodwa isetyenziselwa ukuthumela izicelo kwi-intanethi.
Ezinye iindidi zeeNode
Kwi-network ye-cable ye-TV ye-fiber, i-nodes yimizi kunye / okanye amashishini axhunyiwe kwi-fiber optic receiver efanayo.
Omnye umzekelo we-node yinkqubo enika inkonzo yenethiwekhi enengqiqo ngaphakathi kwintanethi yamaselula, njengomlawuli wesiteshi seziko (BSC) okanye iNodeway GPRS Support Node (GGSN). Ngamanye amazwi, i-node yamaselula yintoni eyenza ukulawulwa kwesoftware emva kwezixhobo zeselula, njengesakhiwo kunye nama-antenna asetshenziselwa ukudlulisela iimpawu kuzo zonke izixhobo ngaphakathi kwenethiwekhi yeselula.
I-supernode yinkalo ngaphakathi kwintanethi yontanga-ntsebenzo engasebenzi nje kuphela njengesixhobo esiqhelekileyo kodwa kunye ne-server yommeleli kunye necebo elithumela ulwazi kwabanye abasebenzisi ngaphakathi kwenethiwekhi ye-P2P. Ngenxa yoko, i-supernodes idinga i- CPU eninzi kunye nomda womda wokuhamba kunamaqhinga aqhelekileyo.
Iyintoni Ingxaki yokuphela kweNode?
Kukho igama elibizwa ngokuthi "ingxaki yokugcina i-node" ebhekiselele kwingozi yokhuseleko ezayo nabasebenzisi abakhonkcoza iikhomputha zabo okanye ezinye izixhobo kumnatha womnatha, mhlawumbi ngokomzimba (njengomsebenzi) okanye ngelifu (naphi na indawo), ngoxa kunjalo ixesha usebenzisa loo fowuni enye ukwenza imisebenzi engakhuselekanga.
Eminye imizekelo ibandakanya umsebenzisi wokugqibela othabatha ikhaya lakhe lekhompyutheni kodwa ahlole i-imeyile yabo kwintanethi engakhuselekanga kwintengiso yekhofi, okanye umsebenzisi odibanisa ikhompyutha yakhe okanye ifowuni kwinethiwekhi ye-WiFi yenkampani.
Enye yemingcipheko enkulu kwinethiwekhi yenkampani iyisistim somntu siqu esisetyenziswayo kwaye sisetyenziswe kule ntanethi. Ingxaki ibonakala ngokucacileyo: ifowuni ixuba uxhumano olunokungakhuselekanga kunye nenethiwekhi yoshishino enokuthi iqulethe iinkcukacha ezibukhali.
Isixhobo somsebenzisi wokugqibela singabakho i- malware- sibonakaliswe ngezinto ezifana neefloggers okanye iinkqubo zokudlulisa iifayile ezithatha ulwazi olubucayi okanye ukuhambisa i-malware kumnatha wobucala emva kokuba uqhagamshelwano lwenziwe.
Kukho iindlela ezininzi zokunceda ukuphepha le ngxaki, ukusuka kwi- VPNs kunye nokuqinisekiswa kwezinto ezimbini kwi-software ekhethekileyo yokuxhamla isofthiwe esingasebenzisa kuphela iinkqubo ezithile zokufikelela ezikude .
Nangona kunjalo, enye indlela kukuba ufundise abasebenzisi indlela yokukhusela ngokufanelekileyo isixhobo sabo. Ii-laptops zangasese zingasebenzisa inkqubo ye- antivirus yokugcina iifayile zazo zikhuselekile kwi-malware, kwaye ii-smartphone zingasebenzisa i- app efanayo ye- antimalware yokubamba ii-virus kunye nezinye izisongelo ngaphambi kokuba zibangele nayiphi na ingozi.
Ezinye iiNode zokuThetha
I-Node yileli gama elisetyenziselwa ukuchaza ifayile yekhomputha xa ibhekisela kwisakhiwo sedatha yomthi. Ngokufana nomthi wangempela apho amagatsha anamaqabunga awo, amafolda ngaphakathi kwidatha yolwazi abamba iifayile zazo. Iifayile zinokuthiwa ngamagqabi okanye amaqabunga amaqabunga .
Igama elithi "node" lisetyenziswe kunye ne-node.js, eyi-JavaScript yexesha lokusebenzisa i-runtime-side side JavaScript code. I "js" kwi-node.js ayibhekiseli kwisandiso sefayile yeJS esisetyenziswa kwiifayile zeJavaScript kodwa kunoko nje igama leso sixhobo.