I-gateway-ping-timeout ku-NetworkManager ilinda ini ngempela

Uthola connection.gateway-ping-timeout emhlanganweni mayelana ne-laptop evuka ngaphambi kokuba inethiwekhi isebenzeke, uyayinyusa, futhi kukhona okushintshayo. Ukuthi ushintsho lusize ngesizathu ocabanga ngaso umbuzo ohlukile. Impendulo iqala ngokuthi ukusebenza kwenzani ngempela ngenkathi leso sikhathi sisebenza, nangokuthi lokhu kulinda kuneziphetho ezimbili ezingaba khona.

Landela uxhumano olulodwa kusukela kumugqa womyalo futhi incazelo icaca.

Ukulandela ukusebenza okukodwa

Qala ngoxhumano olugciniwe hhayi nge-default yomhlaba wonke, ngoba lokhu kuyisici soxhumano ngalunye. Faka --show-secrets kuphela uma ngempela uwudinga; isilungiselelo ngokwaso akuyona imfihlo.

nmcli -f connection.id,connection.gateway-ping-timeout connection show
nmcli connection show "Wired connection 1" | grep gateway-ping

Uma isici singu-ziro, okuyiyo i-default ebhaliwe, ukusebenza kuqhubeka ngokushesha lapho ukukhethwa kwekheli kuqedwa. Uma usetha inani eliphozithivu, ukusebenza kokucushwa kwe-IP kulinda kuze kufike impendulo evela kusango noma isikhathi siphele.

Bese wehlisa futhi ukhuphule uxhumano ngenkathi ubuka ukuhamba kwezigameko. Ukulandelana okubonayo kungumsebenzi walesi silungiselelo: isimo sedivayisi, ukukhethwa kwekheli, ukulinda, futhi ekugcineni isimo esisebenzayo okuhlelwa ngaso izinsizakalo ezithembele kuso.

Ukulinda kuneziphetho ezimbili

Zombili iziphetho zibalulekile, futhi iningi labantu likhumbula eyodwa kuphela. Impendulo evela kusango iqeda ukulinda ngokushesha, futhi isikhathi sokuphela siyakuphetha, kungakhathaliseki ukuthi kukhona okuphendulile noma cha. Lesi sici asidingi i-ping ephumelelayo ngaphambi kokuba ukusebenza kuqedwe.

Umusentensi lowo uqaqa ukudideka okukhulu mayelana nama-laptop emahhotela nasezindaweni zemihlangano, lapho isango lokungena livame ukwenqaba i-ICMP kuze kube yilapho ungena khona. Uxhumano lusasebenza ngemva kokuphela kwesikhathi; lwenza lokho ngemva kwesikhathi kunalokho obekudingeka, futhi yonke insizakalo ehlelwe ngemva koxhumano ilinda nayo.

Futhi akusona isikhathi sokuhlola ukuphila. Akukho okusencazelweni okuqala ukupinga isango ngemva kokuba uxhumano lukhuphukile, futhi akukho okuqhawula iphrofayela esebenzayo ngenxa yokuthi i-ping yakamuva ihlulekile. Uma udinga ukutholwa kokulahlekelwa, lokho kungokweprotocol noma umnikazi womhubhe, hhayi isici esasebenza kanye ngesikhathi sokusebenza.

Izinto ezimbili, isilungiselelo esisodwa

Iphrofayela eyisisekelo yocingo nephrofayela ye-VPN yizinto zokucushwa ezihlukene, futhi ukusetha isici kwesinye akukuthinti esinye. Iphrofayela ye-VPN ebiza uxhumano oluyisisekelo ayizuzi noma yiziphi izilungiselelo zayo zokusebenza, yingakho inani olushintshile lingase libonakale lingenawo umthelela kulokho obukade ukubheka.

nmcli -f NAME,UUID,TYPE connection show
nmcli connection show "Office VPN" | grep gateway-ping

Funda ama-UUID hhayi amagama. Amagama ayaphindwa ngemva kokufakwa kabusha noma iphrofayela ebuyisiwe, futhi ukuxhumana okubili okunegama elibonakalayo elifanayo kuzokwenza uhlele ifayela elingalungile ngenkathi eyangempela ihlala ingashintshile.

Uhlobo lwe-NetworkManager olufakiwe nalo lubalulekile. Ukuziphatha kwesengezo nokuthi uhlobo loxhumano luyihlanganisa kanjani le sici nezinhlangothi zalo zokusebenza kuyahluka, ngakho hlola kuhlobo olusebenzisayo esikhundleni sokucabanga ukuthi umbhalo otholile usebenza ngaphandle koshintsho.

Okungakwazi ukufakazelwa ukulinda

Nayi ingxenye edla isikhathi esiningi. Impendulo evela kumgwaqo wendawo ifakazela ukuthi isisetshenziswa esisodwa saphendula umsindo we-ICMP owodwa ngesikhathi sokusebenza. Akufakazeli ukuthi indawo yokugcina ye-VPN iyaxazululwa, ukuthi ubunikazi bekhasimende buyamukelwa, ukuthi imigwaqo yangasese ifakiwe, ukuthi isixazululi sasehhovisi siyaphendula, noma ukuthi uhlelo olubalulekile kuwena luzosebenza.

Lokho kungukuncika okuhlukene okunobufakazi obuhlukene. Isango lingaphendula ngenkathi i-DNS ihluleka, futhi isango lingalahla i-ICMP buthule ngokwenqubomgomo ngenkathi zonke izindlela zohlelo zisebenza. Ngakho ukubeka umbandela kulesi sici ukuqagela ukuthi yiluphi ungqimba olubambezelekile, hhayi ukukala kwalo.

Uma ulinde insizakalo ethembele kuyo, yisho ukuthi idinga ini. Ikheli elinikeziwe liphendulwa ukukhethwa kwekheli. Umhubhe uphendulwa isimo wawo uqobo. Igama langasese liphendulwa umbuzo. Uhlelo luphendulwa uhlelo, futhi ayikho kulezi zimpendulo evela ku-timer eqanjwe ngesango.

Uma uyishintsha, bhala ukuthi kungani

Rekhoda inani langaphambilini nesizathu ngaphambi koshintsho olugunyaziwe, bese usetha kuxhumano oluthile hhayi yonke indawo. Ukulinda isikhathi eside kuhambisa isikhathi sokusebenza kukho konke okuhlelwe ngemva kwalolo xhumano, okungase kwenza uhlelo olunensayo lubonakale lulungile futhi olusheshayo lubonakale luphukile.

Kufanele kushiwo ugibe olulodwa lomlando: inani elinjalo ngezinye izikhathi liyashintshwa ukuze umhleli omdala amukele iphrofayela. Uma kuyindaba yangempela, unezigameko ezimbili, hhayi esisodwa. Umhleli walondoloza, futhi inqubomgomo yenethiwekhi esebenzayo yashintsha. Lungisa umhleli noma isengezo bese ubuyisela i-timer endaweni yayo.

Umthombo we-NetworkManager uchaza lesi sici njengokubambezeleka kokuphumelela kokukhethwa kwekheli le-IP kuze kufike impendulo yesango noma isikhathi sokuphela, ngokungaguquki kungu-ziro, futhi incazelo yesilungiselelo soxhumano iyincwadi okufanele ifundwe ngaphambi kokuthembela ekuziphatheni okuxoxwe ngabanye.