Tushen VPN na Domain da hanyoyin IP: wanne ya fi dacewa?
Sunan kwamfuta a cikin akwatin tsaga-tunnel ba hanya ba ce. Kwatanta ka'idojin domain da prefixes bayyanannu kan sabuntawa, iyakar ƙananan yanki da abin da ke faruwa idan DNS ya canza.
Hanyar IP tana dacewa da prefix na adireshi, kuma kernel yana aiwatar da ita ba tare da ƙarin tambayoyi ba. Ka'idar VPN na domain tana dacewa da suna, wanda ke nufin dole ne wani abu a cikin stack ya yanke shawara waɗanne adireshi ne sunan yake nufi a yanzu kuma ya riƙe wannan shawarar a sabunta. Waɗannan dabaru ne daban-daban da hanyoyin gazawa daban-daban, kuma masu sayarwa suna amfani da kalma ɗaya ga duka biyu. Kwatanta su a jerin fasali yana rasa ma'anar; kwatanta su kan abin da ke faruwa idan amsar ta canza.
Rabin da ke da amfani shi ne tsakanin ka'idar da ke warware da ka'idar da ba ta warwarewa.
Abin da kowace ka'ida take dacewa da shi a zahiri
Ka'idar prefix tana dacewa da adireshin manufa a cikin teburin tafiyar da hanya. Babu abin da ake warwarewa, babu abin da ke ƙarewa, kuma daidaituwar daidai take ga kowane fakiti. Ka'idar domain tana dacewa da buƙatar aikace-aikace na suna, wanda RFC 1034 ke bayyana a matsayin bishiyar lakabi maimakon adireshi. Wasu kayayyaki suna warware sunan sau ɗaya kuma suna sanya adireshin da suka samo a matsayin hanyoyi, wanda ke mai da ka'idar ka'idar IP mai ɗauke da agogon sabuntawa.
San wanne daga cikin biyun kake da shi kafin ka yi debugging, domin gazawar tana kama da wani abu daban kacokan a kowane yanayi.
Inda ka'idar domain take a cikin stack
Idan kayan aikin yana aiwatar da ka'idojin domain ta hanyar proxy na gida, dole ne zirga-zirga ta isa wannan proxy, kuma aikace-aikacen da suka yi watsi da proxy na tsarin suna ƙetare ka'idar gaba ɗaya. Idan yana aiwatar da su ta hanyar warware sunaye da ƙara hanyoyi, adireshin suna da sabo kamar sabuntawa ta ƙarshe kawai. Idan yana haɗa resolver, ɗabi'ar DNS ta zama wani ɓangare na manufar tafiyar da hanya, kuma resolver na ajiya zai iya soke shi cikin shiru.
Karanta samfurin mai sayarwa maimakon lakabin saitin. Abokan ciniki biyu da ke da akwati mai suna Split Tunnel na iya yin abubuwa uku daban-daban.
Kwatanta abin da ke karya
Abubuwa uku suna karyewa daban. Canjin adireshi: sunan kwamfuta na CDN zai iya warware zuwa wani rukunin adireshi daban cikin mintuna, don haka jerin da aka kwafa yana tsufa da wuri. Iyakar ƙananan yanki: ka'idar example.com na iya rufe api.example.com ko babu, kuma takardun yawanci suna bayyana wanne. Gazawar warwarewa: idan resolver ya gaza, abokin ciniki mai warwarewa zai iya koma zuwa tunnel ɗin zirga-zirga, ko zuwa aika shi kai tsaye.
Na biyu ne kawai tambaya ce ta saiti. Sauran biyun tambayoyin ƙira ne game da nawa kayan aikin ya yarda ya yi hasashe.
| Behaviour | Prefix rule | Domain rule |
|---|---|---|
| Match basis | destination address | requested name or resolved addresses |
| Staleness | none | depends on refresh policy |
| Subdomain scope | not applicable | product-defined |
| Resolver outage | unaffected | product-defined fallback |
| Where to debug | routing table | client log plus resolver state |
Lokacin da prefix ya fi zama amsa
Ga ingantaccen ƙaramin cibiyar sadarwa na sirri, bayyanannen prefix ya fi bayyana, ya fi sauri kuma ya fi sauƙin dubawa. Hakanan yana jure katsewar resolver, domin babu abin da za a warware. Yi amfani da ka'idar domain idan sabis ɗin ana ɗaukarsa, idan adireshi suna juyawa, ko idan da gaske ba za ka iya lissafa rukunin manufa ba. Kada ka yi amfani da ita kawai saboda sunan kwamfuta shine abin da ka sani kwatsam.
Jerin tsaye da aka yi hasashe shi ne mafi muni daga duka biyu: yana kama da ana kula da shi, kuma yana rasa zirga-zirga cikin shiru ranar da mai bayarwa ya ƙara kwamfuta.
Tabbatar da sabon buƙata
Gwada da buƙata mai sanyi bayan sake haɗawa ta al'ada, domin shafin da aka adana a cache na iya ba zai taɓa ka'idar ba. Warware sunan, sannan duba inda haɗin ya tafi da gaske. dig +short app.example.com yana ba da rukunin adireshi na yanzu, kuma jerin haɗin abokin ciniki yana gaya maka wace interface ce ta ɗauki kwarara.
Maimaita bayan tazarar sabuntawa da kayan aikin ya rubuta. Idan rukunin adireshi ya karkata kuma ka'idar ba ta bi ba, ka sami ainihin ɗabi'ar.
Ka kuma ware manufar resolver. Ka'idar domain tana buƙatar ingantaccen bayanan suna, amma ba ita kaɗai take yanke shawarar wace resolver ce ke amsa tambayar ba.