Ukuvimba Iphuzu Lokuphuma le-VPN Kuvimba Ikheli, Hhayi Umuntu

Othile ufaka ikheli lokuphuma lomhlinzeki we-VPN ohlwini lokuvimbela, futhi ukuhlukumeza kuyama usuku olulodwa. Bese kuba ikhasimende elisebenzisa umhlinzeki ofanayo ngengozi elifaka ithikithi, futhi umthetho ubonakala ubanzi kunalokho obekuchazwe nguwuphi. Ukuvimba bekuyisinqumo mayelana nekheli ngaso sonke isikhathi; inkinga ukuthi kwakuthengiswa njengesinqumo mayelana nobunikazi. Hlukanisa kokubili ngaphambi kokubhala umthetho olandelayo.

Umthetho ongawusebenzisa umayelana nekheli lomthombo

Umthetho we-firewall uhambisana nenkambu kuyiphakethe, futhi inkambu oyihambisayo iyikheli lomthombo. Lowo mthetho ungenqaba ngokuthembekile ukuxhumana okuvela kulelo kheli, okuwumphumela wangempela futhi owusizo. Kodwa awukwazi ukukutshela ukuthi ngubani othumele iphakethe, iyiphi i-akhawunti esetshenzisiwe noma ukuthi nguyena yini umuntu obange inkinga yayizolo. Ukubhala umthetho kulula; ukuchaza lokho okukufakazayo yilapho amaqembu enza iphutha khona.

Uma umgomo uwukuvimba ukuziphatha okuthile, umthetho wekheli uyithuluzi elibuthuntu elitholakala ngengozi. Uma umgomo uwukuhlonza umsebenzisi, ikheli ubufakazi obungalungile futhi ukuqinisekiswa kohlelo lokusebenza yikho okulungile. Nquma ukuthi yimuphi umgomo onawo ngaphambi kokuba umthetho ungene ekukhiqizeni.

Ukusesha kwirejista kukutshelani ngempela

Ukusesha kwirejista kubuyisela isabelo kanye noxhumana ababhalisiwe benethiwekhi. Akukho okubala izinsizakalo ezisebenza kukho konke ikheli, futhi akukutsheli ukuthi yimuphi umqashi othumele isicelo. Ngisho ibhlokhi encane ebhalisiwe ingaqukatha imithwalo yomsebenzi engahlobene evela kumakhasimende ahlukene.

dig +short exit.example.net
whois 203.0.113.0 | head -40

Ukuxazulula igama lomsingathi wokuphuma kukunikeza amakheli abuyiswe ngaleso sikhathi, okuyisithombe sesikhashana hhayi uhlu. Ukunweba impendulo eyodwa kuso sonke isiqalo sokusingatha kuyisinqumo esihlukile esinomthelela obanzi, hhayi inguqulo ephelele yobufakazi obufanayo. Uma usebenzisa umthombo wokuhlukanisa ogcinwayo, ilebula yawo ingumqagelo onamaphutha aziwayo kuzo zombili izinhlangothi. Akukona ukuqinisekisa, futhi akulona uhlu lwabantu.

Misa uma umthetho ohlongozwayo uthethekelwa ngukusesha kuphela. Isithombe sesikhashana asisona isinqumo sobubanzi.

Iziphuma ezabiwe kanye nomonakalo ohlangothini

Iphuzu lokuphuma elabiwe lithwala abasebenzisi abaningi, futhi isikhala sekheli esabiwe kusho ukuthi ikheli elilodwa lomphakathi lingamela iqembu lonke lababhalisile. Ukulivimba kuthinta bonke, kuhlanganise nalabo abangahlobene nokuhlukumeza. Ukunweba esiqalweni esizungezile kuphindaphinda lowo mthelela futhi kwandisa ithuba lokuthi insizakalo engahlobene ibanjwe. Umonakalo ohlangothini awusona umphumela oseceleni ozobhalwa kamuva; uyingxenye yencazelo yomthetho.

Ubufakazi bamaphakethe bunemikhawulo yabo. Ikheli lomthombo ku-SYN eyedwa lingakhohliswa, ngakho iphakethe alisunguli ukuthi ngubani oqale okuthile. Isimo soxhumo oluvuleke uhhafu sibonisa ukuthi ukuxhawula kuqalile, hhayi ukuthi uhlangothi olulandelayo lunecala ekuhlaselweni okuboniswayo. Uxhumo oluphelile lusho okuhlukile kunelogi yohlelo lokusebenza, futhi isikhathi esiqinisekisiwe sisho i-akhawunti okungekho kuzo zombili eziyishoyo.

Khetha ububanzi obuncane kakhulu obuvunyelwe umgomo, futhi ubhale ukuthi ubani olindeleke ukuthi abanjwe ngephutha.

Ubufakazi okufanele bubhalwe, kanye nendlela yokubuya yabasebenzisi

Wonke umthetho wekheli kufanele uphethe umbono owawuthethekela, usuku, ububanzi kanye nephoyinti lokubuyekeza. Lowo mbhalo yiwona ovumela umuntu olandelayo ukuthi unciphise umthetho esikhundleni sokuqagela ukuthi kungani ukhona. Ngaphandle kwawo, ukuvimba kwesikhashana kuba yingqalasizinda unomphela.

nft list ruleset | grep -n 203.0.113
ss -tn state syn-recv '( dport = :443 )'

Nquma ukuthi umsebenzisi osemthethweni ubuyisa kanjani ukufinyelela ngaphambi kokusabalalisa ukuvimba, ngoba umugqa wokusekela awulona uhlelo lokubuyisela. Indlela yokudlulisa isikhalo, okuhlukile okubhaliwe noma enye indlela yokufinyelela ziyasebenza; ukutshela abantu ukuthi bayeke ukusebenzisa i-VPN yabo akusebenzi. Hlanganisa umthetho wenethiwekhi nezilawuli ezihambisana nokuziphatha: imikhawulo yesivinini, izimvume ze-akhawunti eziqinile noma ukuphoqelela ngaphakathi kwensizakalo ngokwayo. Ukuvimba iphuzu lokuphuma le-VPN kunganciphisa ukuxhumana okungafuneki ngaphandle kokuzenza libe uhlu lwabasebenzisi.

Uphawu okufanele ulugcine emehlweni ukuhlukana phakathi kwalokho okwenzayo umthetho nalokho abantu abakholelwa ukuthi ukwenzayo. Ukuvimba kunqaba ikheli. I-akhawunti ihlonza umsebenzisi. Gcina leyomithetho ihlukene ethikithini, futhi umthetho olandelayo uzoba lula ukuwuvikela.