Xa iphepha lewebhu lithatha ixesha elide ukulayishwa, unokumangaliswa kukufumanisa ukuba ayilulo uqhagamshelo lwakho lwe-Intanethi oluyingxaki, kodwa useto lwakho lweDNS. Nasi isizathu.
Usenokuba uvile abantu bekuxelela ukuba utshintshe i-DNS yakho ukuba isantya sakho se-intanethi siyabandezeleka. Abanye banokuthi ukutshintsha useto lwakho lwe-DNS kunokuphinda kabini isantya sakho se-intanethi!
Iisetingi zakho zeDNS zidlala indima ebaluleke kakhulu kwizantya zokukhangela. Usebenzisa i-DNS rhoqo, nangona ungayazi. Ke masixoxe ukuba yintoni i-DNS kwaye kutheni useto lwe-DNS luchaphazela izantya zakho ze-intanethi.
Yintoni iseva ye-DNS?
I-DNS sisishunqulelo esilula seSistim yeGama leNdawo. Yicinge njengoluhlu olukhulu olurekhoda zonke iidilesi kwi-Intanethi. Xa uchwetheza i-URL kwisikhangeli sakho, iguqulelwa kwidilesi ye-IP sisikhangeli sakho usebenzisa iirekhodi zeDNS.
Sonke isixhobo esiqhagamshelwe kwi-Intanethi sinedilesi ye-IP yaso. Ngaphandle kweeseva ze-DNS, kufuneka ugcine idilesi nganye ye-IP ukufikelela kwiwebhusayithi ethile. Kodwa, ngethamsanqa, ngeerekhodi ze-DNS, igama lomninimzi liguqulelwe ngokuzenzekelayo kwidilesi ye-IP, kwaye isiphequluli sakho sithumela isicelo kumncedisi, obuyisela izibonelelo ezilayisha indawo yakho.
Kukho iiseva Dynamic DNS Kunye neeseva ze-DNS ezimileyo. Uhlaziyo lwangaphambili lweerekhodi ze-DNS rhoqo njengoko iidilesi ze-IP zitshintsha. zininzi Ababoneleli beDNS abaDynamic basimahla onokuyisebenzisa kwakhona.
Ingaba iseva ye-DNS iyichaphazela njani isantya
Ukuqonda indlela iseva ye-DNS echaphazela ngayo isantya, kubalulekile ukugxila kwiirekhodi ze-DNS, eyona nto ibaluleke kakhulu yirekhodi A, emele "idilesi".
Irekhoda imephu onke amagama esizinda kwiidilesi zeIP. Xa ufikelela kwiwebhusayithi, i-DNS isombulula umbuzo wakho, iguqulela i-URL kwidilesi ye-IP, kwaye ikhomba kwiseva apho iwebhusayithi ibanjwe khona.
Ukuba ixesha lokuphendula liphezulu kwiseva ye-DNS, inokucothisa inkqubo yokusombulula igama lewebhusayithi. Oku kunokubangela ukuba iwebhusayithi ilayishe kancinci kunokuba ulindele.
Ngokungagqibekanga, iseva ye-DNS ikhethwa ngokuzenzekelayo, nangona ezinye ii-ISPs zinokusebenzisa iseva ye-DNS echaziweyo ekufutshane ngokwejografi kumsebenzisi.
Kodwa, ukuba iiseva ze-DNS ziphantsi komthwalo onzima wetrafikhi, iya kubangela ukuba isantya sesisombululo segama sinyuke, nto leyo eya kuthi icothise ukusebenza kokukhangela. Ngokufanayo, ukuba iseva ye-DNS ikumgama omde ukusuka apho uhlala khona, kuya kuthatha ixesha elide ukusombulula imibuzo yewebhusayithi.
Unga Guqula useto lwakho lwe-DNS ukuphucula isantya se-intanethi yakho Nangona kunjalo, ayisosisombululo sobukhulu obunye. Ngokufanelekileyo, uya kufuna ukukhetha iseva ye-DNS ekufutshane kuwe kwaye ineerekhodi ezihlaziyiweyo.
Iiwebhusayithi kwi-Intanethi zisasazwe kuzo zonke iiseva okanye iindawo. Abantu abaninzi basebenzisa inethiwekhi yokuhanjiswa komxholo (CDN). Cloudflare okanye Google DNS Ukuphucula ukusebenza kunye nokulayisha iisayithi zabo ngokukhawuleza.
Iifayile ezingundoqo zisasazwa kuthungelwano lonke, kunokuba zigcinwe kumncedisi omnye. Oku kunciphisa ixesha lokuphendula kwaye kuphucula ixesha elithathayo ukuba iwebhusayithi yakho ilayishe.
Umzekelo, masithi ukwiCanada kwaye ukhuphela ifayile ngewebhusayithi esebenzisa iCloudflare. Ukuba iirekhodi zakho zakudala zeDNS A zisombulula umbuzo kwiseva yaseCanada, izantya zakho ziya kuba zilungile kakhulu.
Nangona kunjalo, ukuba i-DNS isombulula umbuzo wakho kwiseva e-UK, umzekelo, uya kuqaphela isantya soqhagamshelwano esicothayo. Gcina ukhumbula ukuba imibuzo ye-DNS ayichaphazeli isantya sokukhuphela, kodwa ibangela ukuba iiwebhusayithi zilayishe kancinci.
Uyifumana njani eyona DNS iseva
Sebenzisa i-Namebench Enye yeendlela ezilungileyo zokufumana iseva ye-DNS ekhawulezayo. Esi sisixhobo esilula esiyilwe nguGoogle esikuvumela ukuba uchonge ngokukhawuleza iiseva ze-DNS ezivavanyiweyo kufutshane nendawo yakho. Nantsi indlela esebenza ngayo:
1. Khuphela kwaye ufake i-Namebench
Nje ukuba ukhuphele kwaye ufake i-Namebench, kuya kufuneka udibanise iseva ye-DNS oyisebenzisayo. Kwiimeko ezininzi, i-Namebench iya kuzibhaqa kwaye ikhuphe iiseva zamagama ozisebenzisayo, njengoko kubonisiwe ngasentla.
Le yifayile ephathekayo ephunyeziweyo, ngoko akukho mfuneko yokufaka nantoni na. Khuphela ngokulula kwaye ukhuphe i-app kwaye iya kusebenza ngoko nangoko.
2. Qhuba ibhenchmark
Nje ukuba uqhube ibhentshi, i-Namebench iya kukubonisa iziphumo. Ukutolika ezi ziphumo, eziboniswe ngezantsi, kunokuba yinto encinci, kodwa ngokufanelekileyo, ufuna nje ukubeka ingqalelo kwiingcebiso phezulu. Nantsi indlela ekhangeleka ngayo:
Ukuba ujonga phezulu, iDNS ephambili yangoku yeyona ikhawulezayo, okuthetha ukuba akukho sizathu sokutshintsha izinto. Ungabona kwakhona ulungelelwaniso olucetyiswayo ekunene, ukuquka iiseva eziziiprayimari, eziziisekondari, kunye neziphezulu.
Emva koko, i-Namebench ikubonisa zonke iiseva ezivavanyiweyo ze-DNS, kunye neziphumo zayo nganye. Unokubona nexesha eliphakathi lokuphendula kunye nezinye iinkcukacha zobugcisa ukuba uskrolela ezantsi.
3. Guqula iiseva ze-DNS (ukuba kuyimfuneko)
Gcina ukhumbula ukuba kuya kufuneka utshintshe iseva ye-DNS yazo zonke izixhobo eziqhagamshelweyo. Ke, umzekelo, ukuba uqhagamshelwe kwi-Intanethi usebenzisa esinye isixhobo, esinje ngePlayStation 5, unokufuna ukutshintsha iDNS nalapho.
Kutheni iiseva ze-DNS zichaphazela izantya zakho ze-Intanethi
Ngokungathandabuzekiyo eyona nto ibalulekileyo ngamaxesha akho okukhangela iDNS, kuxa iDNS yakho isombulula umbuzo wakho. Okukhona icotha, kokukhona iya kuthatha ukuba iwebhusayithi yakho ilayishe. Ngokunjalo, ukuba i-cache ye-DNS isandula ukugungxulwa, kungathatha ixesha ukuba iirekhodi ezintsha zigcinwe.
I-DNS iya kukhangela i-cache yesikhangeli sakho, i-cache yenkqubo yokusebenza, kwaye ithumele isicelo kwi-recursive DNS server (ebonelelwe yi-ISP yakho) ukusombulula umbuzo.
Isiphelo: Ngaba kufuneka utshintshe iiSetingi zakho zeDNS?
Kubalulekile ukuqaphela ukuba ukutshintsha izicwangciso zakho zeDNS akuyi kuba yimfuneko ngalo lonke ixesha, njengoko i-ISP yakho idla ngokukuqhagamshela kumncedisi weDNS osebenza ngokukhawuleza.
Kodwa ukuba uhamba okanye uqhagamshela kwiseva ye-DNS engahlaziywanga okanye engekhoyo, unokufumana isantya esicothayo. Ukutshintsha useto lwakho lwe-DNS ngokuqinisekileyo kuya kunceda. Kwezinye iimeko, ukusebenzisa i-Smart DNS kunokunceda.
