Ukubambezeleka kwenethiwekhi kunomthelela omkhulu ekusebenzeni kwezinhlelo zokusebenza noma amasevisi asebenzisana nenethiwekhi. I-latency ephansi, ukusebenza okuphezulu. Lokhu kuyiqiniso kunoma iyiphi isevisi yenethiwekhi, kusukela kuwebhusayithi evamile kuya kusizindalwazi noma isitoreji senethiwekhi.
Isibonelo esihle i-Domain Name System (DNS). I-DNS ngokwemvelo iwuhlelo olusabalalisiwe, olunamanodi ezimpande asakazeke emhlabeni wonke. Ukuze ufinyelele noma iyiphi iwebhusayithi, udinga kuqala ukuthola ikheli layo le-IP.
Ngeke ngichaze yonke inqubo yokuphinda ngidlule βemthiniβ wezindawo zesizinda, kodwa ngizokhawula eqinisweni lokuthi ukuze siguqule isizinda sibe ikheli le-IP, sidinga isixazululi se-DNS esizokwenza wonke lo msebenzi. thina.
Ngakho-ke, ulitholaphi ikheli lesixazululi se-DNS?
- I-ISP inikeza ikheli lesixazululi sayo se-DNS.
- Thola ikheli lesixazululi somphakathi ku-inthanethi.
- Thatha eyakho noma sebenzisa eyakhelwe kumzila wakho wasekhaya.
Noma yikuphi kwalokhu okukhethwa kukho kuzokuvumela ukuthi ujabulele ukusefa okungenazinkathazo kuWebhu Yomhlaba Wonke, kodwa uma unesidingo sokuguqula inombolo enkulu yezizinda zibe yi-IP, kufanele usondele ekukhetheni isixazululi ngokucophelela.
Njengoba ngike ngabhala, ngaphezu kwesixazululi se-ISP, kunamakheli amaningi omphakathi, isibonelo, ungabheka lolu hlu. Ezinye zazo zingathandeka kakhulu ngoba zinokuxhunywa kwenethiwekhi okungcono kunesixazululi esizenzakalelayo.
Uma uhlu luncane, ungakwazi kalula "ukulufaka" ngesandla futhi uqhathanise izikhathi zokulibaziseka, kodwa uma uthatha uhlu olushiwo ngenhla, khona-ke lo msebenzi uba ungathandeki.
Ngakho-ke, ukwenza lo msebenzi ube lula, mina, ngigcwele i-impostor syndrome, ngadweba ubufakazi bomqondo wami ku-Go ebizwa ngokuthi. .
Njengesibonelo, ngeke ngihlole lonke uhlu lwezixazululi, kodwa ngizokhawula kwabadume kakhulu kuphela.
$ get-closer ping -f dnsresolver.txt -b=0 --count=10
Closest hosts:
1.0.0.1 [3.4582ms]
8.8.8.8 [6.7545ms]
1.1.1.1 [12.6773ms]
8.8.4.4 [16.6361ms]
9.9.9.9 [40.0525ms]
Ngesinye isikhathi, lapho ngizikhethela isixazululi, ngangizikhawulele ekuhloleni amakheli ayinhloko kuphela (1.1.1.1, 8.8.8.8, 9.9.9.9) - phela mahle kakhulu, futhi yini ongayilindela kuyo. amakheli ayisipele amabi.
Kodwa njengoba kunendlela ezenzakalelayo yokuqhathanisa ukubambezeleka, kungani ungakhulisi uhlu...
Njengoba ukuhlolwa kubonisile, ikheli le-Cloudflare βlekhophi yasenqolobaneniβ lingifanele kakhulu, njengoba lixhunywe ku-spb-ix, eseduze kakhulu nami kuno-msk-ix, ene-1.1.1.1 enhle exhunywe kuyo.
Umehluko, njengoba ubona, ubalulekile, ngoba ngisho nomsebe wokukhanya osheshayo awukwazi ukufika ukusuka eSt. Petersburg kuya eMoscow ngaphansi kuka-10 ms.
Ngokungeziwe ku-ping elula, i-PoC iphinde ibe nethuba lokuqhathanisa ukubambezeleka kwezinye izivumelwano, njenge-http ne-tcp, kanye nesikhathi sokuguqula izizinda zibe yi-IP ngokusebenzisa isixazululi esithile.
Kunezinhlelo zokuqhathanisa inani lamanodi phakathi kwabasingathi abasebenzisa i-traceroute ukuze kube lula ukuthola ababungazi abanendlela emfushane eya kubo.
Ikhodi iluhlaza, ayinakho inqwaba yamasheke, kodwa isebenza kahle kudatha ehlanzekile. Ngingajabulela noma yimiphi impendulo, izinkanyezi ziqhubeke , futhi uma kukhona owuthandile umbono wephrojekthi, wamukelekile ukuthi ube ngumnikeli.
Source: www.habr.com