Isihlola sokusabalalisa i-DNS: i-DNS yami ivuselelwe?

Indlela yokusetshenziswa kwale thuluzi

1

Faka ikheli

Bhala ikheli le-DNS ofuna ukulilandelela — ikheli le-root njenge example.com.

2

Umbuzo ophelele

ns6 ubuza izixazululo eziningi zabasebenzi emhlabeni wonke - Google, Cloudflare, Quad9 futhi ngaphezulu - ukuze urekhode ngesikhathi esifanayo.

3

Thola impendulo

Uma wonke ama-solver ebuyisela ixabiso elifanayo, ushintsho lwakho luzosakazeka ngokuphelele. Uma besingavumelani, abanye bangase bahlinzeke ngomlando omusha we-cache.

4

Lungiselela bese uhlola futhi

Ukusakazwa ilandela isipele TTL futhi ingathatha imizuzu 48 amahora. Re-uqhube ukuhlolwa kuze kube wonke umsolwa uvumelana.

Uma ushintsha i-DNS record - usuka endaweni yakho ku-host entsha, uhlaziya i-MX record, noma ungeza ukuhlolwa kwe-TXT - ushintsho alufinyeleli wonke umuntu ngasikhathi sinye. Abaxazululi emhlabeni wonke bagcina i-cache yexabiso elidala kuze kube sekuphele, ngakho-ke isikhathi eside abanye abavakashela babona i-record entsha futhi abanye baqhubeka bebona eyakudala. Lezo phakathi kwezimo zibizwa ngokuthi ukusakazwa.

Lo mhloli ubuza izixazululo eziningi ezinkulu zomphakathi ngesikhathi esifanayo futhi uqhathanisa izimpendulo zabo. Uma bonke bebuyela ku-ixabiso elifanayo, ushintsho lwakho luye lwasasazeka kuwo wonke amasayithi; uma behluka, abanye abaxazululi baqhubeka nokunikeza ikhophi egcinwe kwi-cache. Isikhathi esingakanani esithatha kuxhomekeka ku-TTL yomlando, owawusetha ku-DNS yakho.

Imibuzo ebuzwa kaningi

Isikhathi esithatha ushintsho lwe-DNS ukufinyelela izixazululo kuzo zonke izindawo. kuze kube yilapho iqediwe, ezinye izixazululo zihlala zinikeza irekhodi elidala eligcinwe endaweni yokugcina ngenkathi abanye banenye entsha.

Icela izixazululo eziningi ezinkulu zomphakathi - iGoogle, iCloudflare, iQuad9, iOpenDNS kanye nezinye - ngerekhodi elifanayo ngasikhathi sinye, bese iqhathaniswa nezingxoxo zabo. Izincomo ezihambisanayo zisho ukuthi ushintsho luye lwakhula.

Umxazululi ngamunye ugcina izingeniso ezigcinwe endaweni efihlakeleyo kuze kube yilapho i-TTL yabo ihlala khona. Uma ushintshe isingeniso ngoku, umxazululi ogcina indawo efihlakeleyo yexabiso elidala ugcina unikeza indawo kuze kube yilapho indawo efihlakeleyo iphela.

Ngokuvamile imizuzu imizuzu eminingana, kodwa ingathatha kuze 24-48 amahora. Kuxhomekeka TTL incwadi kanye nendlela aggressively resolvers along the path cache it.

Nciphisa i-TTL yomlando ngaphambi kokuba wenze ushintsho, ukuze izixazululi ziyigcine isikhathi esincane. Uma ukhohliwe, ungalindela kuphela ama-caches akhona ukuba aphele.