I-TCP ngaphakathi kwe-SSTP: kungani ukudlulisela kabusha kwenzeka kabili

I-SSTP ithwala umhubhe kumtsamo we-TCP phezu kwe-TLS. Uma indlela ilahla amaphakethe, ukubuyiselwa kwangaphandle nokwangaphakathi kuhoxa ngesikhathi esisodwa.

Izindaba zomlomo zifika ngaphambi kophrothokholi. Buza nxazonke futhi i-SSTP iyona ehamba kancane, inketho oyigwemayo ngaphandle uma kukhona okukuphoqa. Leso sithunzi sichaza indlela eyodwa yokuhluleka endleleni eyodwa.

Indlela yokusebenza ingeyeqiniso. Futhi incike emibandelelweni, okungukuthi isithunzi asikusho neze.

Imitsamo emibili ethembekile endleleni eyodwa

SSTP isonga umhubhe wayo ngaphakathi kwesikhathi se-HTTPS. I-HTTPS ihamba phezu kwe-TCP, futhi lowo mtsamo wangaphandle uqinisekisa ukulethwa okuhlelekile. Ngakho-ke ingxenye eyodwa elahlekile ibamba konke okulindile ngemuva kwayo. Amabhayithi akamuva angaw ezinye izingxoxo zangaphakathi nawo alinda.

Imitsamo ye-TCP yangaphakathi igcina ukuhleleka kwayo nokulawula ukuminyana. Ayikwazi ukubona ukubuyiselwa kwangaphandle, ngakho-ke into eyodwa eyibonayo ukuma. Ukuma wuphawu oluyitshela ukuthi indlela iminyene.

Manje zombili izingqimba zihoxa ngesikhathi esisodwa. Yilokho konke ukusebenzisana, futhi ingxenye eyodwa elahlekile yanele ukuyiqala.

Lapho umphumela uvela khona nalapho ungenzi khona

Endleleni ehlanzekile umtsamo wangaphandle awuvamile ukubuyisela okuthile. Ukusebenzisana akwenzeki neze, futhi i-SSTP ithwala ithrafikhi esebenzisanayo kahle impela. Isimangalo esijwayelekile sihluleka khona lapha.

Umphumela uvela lapho ukulahleka noma ukuhlela kabusha kufinyelela indlela eyisisekelo. Isixhumanisi se-Wi-Fi esiminyene noma uxhumano lweselula olunokubambezeleka okuguquguqukayo kudala izimo. Khona-ke umugqa wangaphandle ovinjiwe uba ukubambezeleka okubonakalayo ngaphakathi komhubhe.

Futhi kukhula ngomthwalo womsebenzi. Imitsamo eminingi ehambisanayo igcwalisa umugqa futhi yenza ukuvinjwa kwasekhanda lomugqa kube kubi kakhulu. Isikhathi esisodwa sokusebenzisana endleleni efanayo singabonakala samukelekile.

Okungayona ngokuvamile uphawu

Akusona sonke isikhathi esisheshayo le nkinga. Izinga eliphansi elizinzile kusukela kupakethe lokuqala likhomba kumthamo, ukubunjwa noma umkhawulo wesiphakeli. Izikhathi zokuphumula ezihambisana nokuminya kwendawo zikhomba emigqeni osixhumanisini sokufinyelela.

Amakhambi ahlukile, yingakho ukuxilongwa kuza kuqala. Ukulungisa ibhafa akusizi lutho kusixhumanisi esibunjiwe. Ukushintsha imithetho akusizi lutho kusiphakeli esiphelelwe umthamo. Ukuqalisa kabusha okuphindaphindiwe kukhomba kwenye indawo ngokuphelele.

# outer path quality to the SSTP endpoint
ping -c 50 203.0.113.44 | tail -3
mtr -rwc 50 203.0.113.44

# is the local link saturated while the session stalls?
sar -n DEV 2 5

# retransmissions on the outer connection
ss -tin dst 203.0.113.44

Thatha isilinganiso ngenkathi inkinga isenzeka. Ukuthwebula okwenziwe ngeminithi enempilo akufakazi lutho mayelana nomjikelezo ogijima ngeminithi embi.

Ukuqhathanisa okufanele kuthenjwe

Uma kukhona enye indlela yokuthutha ngempela, qhathanisa ngaphansi kwezimo ezilawulwayo. Isiphakeli esifanayo, inethiwekhi efanayo, indawo yokufika efanayo kanye nomsebenzi ofanayo. Kokubili ukugijima kufanele kube phakathi kwemizuzu eyishumi efanayo ukuze izimo zendlela zifane.

Ukushintsha imbobo akushintshi umthetho. Ukungenisa iphrofayili engahlobene kuklayenti ye-SSTP akudali enye indlela yokuthutha. Ukuqhathanisa kunencazelo kuphela uma isiphakeli sinikela ngenketho yesibili.

Gcina ukuqinisekiswa kwe-TLS kusebenza ngaso sonke isikhathi. Umsebenzi wokusebenza kahle awusona isizathu sokwamukela isitifiketi esingaqinisekisiwe. Uma ukuma kuvela kakhulu ngenkathi umgudu wokukhweza ugcwele, bheka imigqa ngaphambi kokusola izingqimba.

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