Umthetho wesizinda we-VPN uyaphuka lapho i-CDN ishintsha amakheli ayo
Impendulo eyodwa ye-DNS iyisithombe sesikhashana, hhayi uhlu oluphelele. Izimo ezintathu zinquma ukuthi umthetho osuselwa egameni noma isiqalo esicacile ufanele yini isevisi esekelwe yi-CDN.
Ukopisha ikheli kusuka kokunye ukusesha uyifaka emthethweni wakho womzila, isiza siyasebenza, futhi ngemuva kweviki alisasebenzi. Akukho okushintshile emthethweni. Isevisi yathuthela kwelinye ikheli lomkhawulo, iklayenti laxazulula elinye igama lomsingathi, noma iseshini yashintshela ku-IPv6. Isinqumo esiphambi kwakho siwukuthi umthetho osuselwa egameni noma ububanzi obucacile uyithuluzi elifanele yini le sevisi, futhi izimo ezintathu zinquma lokho. Okulandelayo kuhlukanisa igama nekheli, ngoba kukodwa kuphela kuzo okuzinzile.
Kungani ukusesha okukodwa kungeyona uhlu oluphelele
Inethiwekhi yokuletha okuqukethwe iphendula ngekheli elikhethelwe isixazululi, isifunda kanye nomzuzu. Buza kabili kusuka kumanethiwekhi ahlukene futhi ungathola izimpendulo ezihlukene. Buza kanye bese uthatha impendulo njengohlu lwamakheli esevisi, khona-ke umthetho oyowubhalayo uyisithombe sesikhashana, hhayi umthetho. Yilokho kanye inkinga yokuthatha impendulo ye-DNS njengokuhlelwa.
Kunesikhala sesibili. Igama elilodwa lomsingathi elibonakalayo alivamisile ukuhlanganisa lonke uhlelo lokusebenza, ngoba ukungena, imidiya kanye nokuhamba kwe-API kuvame ukusebenzisa amagama ahlukene. Umthetho owakhiwe kusuka egameni lomsingathi kubha yamakheli ungase uhlanganise ikhasi kodwa weqe ividiyo, lokho okufundwa njengokwehluleka kwengxenye, hhayi iphutha lomzila.
Isikhala sesithathu umndeni wamakheli. Umthetho we-v4 kuphela awusho lutho ngerekhodi ye-AAAA iklayenti engase ikhethe.
Izimo ezintathu ezinquma umthetho wesizinda noma ububanzi
Okokuqala, ingabe isevisi ishicilela iqoqo elizinzile lamaqalo ongawasebenzisa futhi uwabhale phansi? Uma kunjalo, ububanzi obucacile buyathembeka futhi bushaphile. Uma kungenjalo, umthetho wesizinda uyindlela eyodwa engalandela isevisi.
Okwesibili, ingabe indlela yesizinda yeklayenti lakho iyavuselelwa? Umthetho oxazululwa kanye ngesikhathi sokuxhuma futhi ungaphinde usavuselelwe uyisithombe sesikhashana esinebrandi engcono. Okwesithathu, ingabe indlela ihlanganisa izizinda ezingaphansi kanye nemindeni yamakheli emibili, noma amagama owabhalayo kuphela?
Phendula lezo zintathu futhi ukukhetha kuvame ukucaca. Ukuqagula kuveza umthetho osebenza ekuhlolweni futhi wehluleke ekukhiqizeni.
Hlola iseshini, hhayi ikhasi
Layisha ikhasi, bese wenza umsebenzi obalulekile: ngena, qala ukudlala, layisha ifayela. Ngakunye kwakho kungafinyelela kumsingathi ohlukile, futhi okwehlulayo yilokho umthetho wakho akushiyile.
Bhala lokho iseshini ehlangana nakho ngempela esikhundleni salokho ikhasi elikubonisayo:
dig +short example.com A
dig +short example.com AAAA
curl -sI https://example.com | head -5Gcina isixazululi sibonakala ngesikhathi sokuqhathanisa, ngoba umthetho osebenza kusuka kwesinye isixazululi futhi wehluleke kwesinye ukutshela ngempendulo ye-CDN, hhayi ngomhubhe. I-TTL emfushane futhi isho ukuthi impendulo oyibhalile inosuku lokuphelelwa.
Yini indlela ngayinye ehlanganisa ngempela
Izindlela ezimbili zibonakala zishintsheka ekhasini lezilungiselelo futhi ziziphatha ngendlela ehlukile ngaphansi.
| Mechanism | What it matches | How it fails |
|---|---|---|
| Domain rule | Names the client resolves, then their addresses | Misses subdomains, or goes stale when refresh is off |
| Address route | A prefix you wrote down | Keeps matching an address the service has left |
Umzila wekheli ku-kernel uhlanganisa amaqalo. Awazi ukuthi igama lomsingathi liyini, ngakho awukwazi ukulandela isevisi eshintsha amakheli. Umthetho wesizinda uxazulula amagama futhi uhambisa umphumela; ulandela isevisi kodwa uncike kwisixazululi, ekuziphatheni kokuvuselela kanye nasekusingatheni kweklayenti izizinda ezingaphansi, ngakho umthetho olandela amagama kufanele uhlolwe ngesixazululi esisetshenziswa iklayenti ngempela.
Akukho okukodwa okuyisethi enkulu kunenye, yingakho ukuzixuba ngaphandle kombhalo kudala ukudideka kamuva.
Phinda uhlole ngemuva kokushintsha kwesevisi
Ngemuva kokubuyekezwa kweklayenti noma ushintsho lwesevisi, phinda ugijime lokho kuhlola kweseshini. Uhlu lwamakheli olwalusebenza ngaphambili luwubufakazi baleso sikhathi, hhayi uhlu oluphelele lwengqalasizinda yesevisi.
Bhala ukuthi iyiphi indlela ehlanganisa iliphi igama lomsingathi, kanye nosuku lokuhlola kokugcina.
Lowo mbhalo uyimehluko phakathi komthetho ongawuvikela nokomthetho okungekho muntu oqhaqhayo ukuwuthinta. Uma isevisi ishicilela uhlu lwayo lwamaqalo, lusebenzise futhi usho usuku. Uma kungenjalo, shono lokho, futhi gcina umthetho wesizinda nokuziphatha kwawo kokuvuselela kubhalwe eceleni.