Shafuka suna lodawa amma lodawa zuwa VPN yana tsayawa: wane dalili zai yi nasara
Tsayawa da ya dogara da girman abu ya dace da laifin MTU na hanya, ya kuma dace da DNS, iyakar manhaja ko rami mai jujjuyawa. Abubuwan lura hudu ne ke yanke shawarar wanne.
Shafuka suna lodawa, VPN yana bayar da rahoton an haɗa, sannan lodin fayil yana daskarewa a wuri ɗaya kowace rana. Bayani huɗu sun dace da wannan kwatancin: matsalar girman fakiti, matsalar warware sunaye, iyakar manhaja da ramin da yake sake saitawa akai-akai. Ana iya tabbatar da kowane ɗayansu ko watsi da shi ta wata duba daban, don haka shawarar ita ce zaɓar gwajin da ya dace maimakon hasashen dalili.
'Yan takara huɗu da siffa ɗaya
Fara da siffar gazawar, domin tana kawar da yawancin jerin kafin a buɗe kowane kayan aiki. Tsayawa da ke faruwa a tsayayyen girma matsalar girma ce har sai an tabbatar da akasin haka. Tsayawa a wurare na bazuwar matsala ce ta asara ko kwanciyar hankali. Gazawa kafin buɗe haɗin matsala ce ta suna.
Ɗan takara na huɗu shi ne manhaja. Iyakokin lodawa, lokacin jira na buƙatun da iyakokin girman jikin wakili suna haifar da gazawa waɗanda daga mai bincike suke kama da laifukan cibiyar sadarwa, kuma yawanci suna zuwa a matsayin ƙi maimakon tsayawa.
Rubuta siffar da aka gani kafin gwada kome. "Yana tsayawa a kusan adadin byte ɗaya, kowane lokaci, tare da ramin a buɗe" shine mafari mafi ƙarfi fiye da "lodawa ba sa aiki".
Sannan riƙe hanyar a tsaye yayin gwaji. Canza fitarwa, ka'ida da sabar a lokaci ɗaya yana ba da sakamakon da ba za ka iya danganta shi da kowanne daga cikinsu ba. Sauyi ɗaya a kowace gwaji, kuma rubuta shi.
Raba girman kafin ka taɓa manufa
Mafi arha mai bambancewa shine binciken da ke canza lamba ɗaya. Aika ping ɗin da ba a raba su ba na girma mai ƙaruwa zuwa wurin da ake nufi, sannan ka loda fayil da kake sarrafawa zuwa wannan sabis ɗin, sannan kwatanta inda kowanne yake tsayawa.
ping -M do -s 1472 203.0.113.9
curl -T ./probe.bin -o /dev/null -w '%{size_upload} %{time_total}
' https://example.net/uploadUmarni na farko yana bayar da rahoton ko fakiti mai cikakken girma yana tsallake hanyar kwata-kwata. A MTU na byte 1500, mafi girman kayan ICMP da ba a raba shi ba shine byte 1472, kuma rami yana ɗaukar ƙari daga wannan kasafin kafin fakiti na ciki ya fara. Na biyu yana ba ka girma da lokaci don canja wuri a matakin manhaja, kuma wannan shine lambar da ke da mahimmanci a zahiri.
| Candidate | Observation that confirms it | Observation that rules it out |
|---|---|---|
| Path MTU or blocked ICMP feedback | Stall at a consistent size; large do-not-fragment probes fail | Small and large transfers both complete |
| Name resolution | The connection never opens for that name | The connection opens and then stalls mid-transfer |
| Application or proxy limit | A clean rejection at a documented size | No log entry on the server at all |
| Tunnel instability | Reconnects or rekeying during the transfer | The tunnel uptime is unchanged across the failure |
Karanta ma'auratan tare. Binciken da ke gazawa sama da ƙofa da lodin da ke tsayawa kusa da wannan ƙofar labari ne mai daidaituwa. Binciken da duk suna cin nasara yayin da lodin ke tsayawa a adadin byte da hanyar ke ɗauka a fili yana nuna manhaja ko sabar, kuma babu aikin MTU da zai canza shi. Wannan sakamako mara kyau yana da daraja kamar mai kyau. Yana kawar da reshe mafi tsada na binciken.
Sannan duba kwanciyar hankali yayin canja wurin, domin ramin da ke sabunta maɓalli a tsakiyar babban lodawa yana haifar da gazawa da ke kama da ta dogara da girma ba tare da haka ba. Karanta lokacin aiki shine hanya mafi arha ta tabbatar da hakan.
Yanke shawara tsakanin gyara da hanyar wucewa
Idan shaidar ta nuna girma, akwai amsoshi biyu na gaskiya da ɗaya na ƙarya. Na gaskiya sune maido da gano MTU na hanya ta hanyar ba da izinin martanin ICMP da ake buƙata, ko kuma takaita girman sashe da aka sanar domin abokan hulɗa su aika ƙananan sassa. Na ƙarya shine rage MTU na fuska zuwa darajar da aka kwafa daga dandalin tattaunawa ba tare da tabbatar da abin da ya canza ba.
Zaɓin ya dogara da abin da kake sarrafawa. A cibiyar sadarwar da kake gudanarwa, barin saƙonnin ICMP shine gyara mafi tsabta domin yana kiyaye tsarin yana aiki ga kowace ka'ida. A hanyar da ba ka sarrafawa, takaitawa shine zaɓi mai amfani, kuma ya kamata a yi shi a ƙunci ba a duk sabar ba.
Idan shaidar ta nuna manhaja, gyara manhajar ko tsarin wakilinta. Amsa 413 da haɗin da ya rataye gazawa ne daban-daban, kuma na biyu yawanci lokacin jira ne a wani wuri a cikin sarƙa da ya haɗa da wakili mai nasa iyakoki.
Ko ta yaya, riƙe ainihin ƙimar kuma sake gwadawa bayan mayarwa. Canjin da ya zo daidai da canja wuri mai aiki ba hujja ba ce cewa shi ne ya haifar da shi, kuma ikon mayar da shi shine abin da ke raba bincike da daidaituwa.
Rubuta shawarar domin ta tsira daga abin da zai faru na gaba
Abubuwa huɗu sun isa: siffar gazawar da aka gani, sakamakon bincike, canjin da ka yi da sakamakon sake gwajin. Da waɗannan, mutum na gaba zai iya sanin ko matsalar ɗaya ce ko sabuwa mai wannan alama.
Lura da yanayin hanya kuma, domin binciken MTU ya shafi wata hanyar sadarwa ta musamman. Kwamfutar tafi-da-gidanka da ke aiki a gida kuma ta kasa a otal tana da hanyoyi biyu, kuma gyaran da aka yi wa ɗaya bai ce komai game da ɗayan ba.
A ƙarshe, tsayar da taƙaitaccen cewa "VPN ya karya lodawa". Ramin yana nan a duka yanayin da ya yi aiki da wanda ya kasa; abin da ya canza shine girman fakitin da hanyar ta ɗauka, ko inda aka tsayar da canja wurin. Ambaton ainihin tsarin shine abin da ke sa bayanin ya zama mai amfani.