Umsebenzi ohleliwe owagijima ngaphandle kwe-VPN ubukeka ukahle

Isimo somsebenzi sithi impumelelo, ilogi ikhombisa ukugijima okuqediwe, futhi idatha isidala noma ayikho. Le nhlanganisela ngokuvamile isho ukuthi umsebenzi ohleliwe waqala ngaphandle kwendlela eyayiwudinga, futhi okuthile ngezansi kwagwinya ukwehluleka. Ishejuli eqala ngesikhathi asisho lutho mayelana nokuthi inethiwekhi yayilungile yini. Igceke phakathi kwala maqiniso amabili yilapho lokhu kwehluleka kuhlala khona.

Ukwamukelwa kungokokugijima, hhayi ukuba khona kwefayela le-cron.

Ukugijima okuluhlaza akuwona umsebenzi oqediwe

Isihleli sibona ukuthi inqubo yaqala futhi kamuva yaphuma; asazi ukuthi leyo nqubo yafinyelela isisetshenziswa eyenzelwe sona yini. Umbhalo obheka ukuxhumana okwehlulekile njengomphumela ongenalutho, noma obamba iphutha bese uphuma ngoziro, uzobukeka uphilile ingunaphakade. Isibonakaliso akusona isimo esibomvu; yisimo esikholakalayo esixhunywe emsebenzini ongekho.

Shono ukuthi ukugijima kudinga ini ngempela ngaphambi kokunquma ukuthi kuzohlolwa kanjani. Ikhopi lokugcina lingase lidinge i-DNS yangasese kanye nendawo yokugcina eqinisekisiwe, hhayi inqubo yethumbu kuphela.

Hlola uxhumano, hhayi igama lesixhumi

Isixhumi esibizwa nge-tun0 singaba khona ngaphandle kwesikhathi esibalulekile, futhi olunye uxhumano lungase lube ngumnikazi walelo gama. Hlola into ethile umsebenzi othembele kuyo: ubunikazi bephrofayela eyodwa, isibonelo sesevisi esisodwa, noma umsebenzi omncane ogunyaziwe ngokumelene nesisetshenziswa. Gcina ukuhlola kunomkhawulo wesikhathi, futhi gcina izifakazelo zingaphandle kwezimpikiswano zenqubo namalogi okuxilonga.

Chaza futhi umphumela lapho kunqanyulwa. Ukweqa okuvamile, umzamo wokuphinda phakathi kwewindi elifushane, nesikhathi esedluliwe esibonakala kumqhubi kuyizimpendulo ezintathu ezihlukene, futhi ishejuli ephindaphindayo ayikhethi phakathi kwazo.

Ukweqa nokwehluleka kuyimiphumela ehlukene

[Service]
Type=oneshot
User=worker
ExecCondition=/usr/local/libexec/check-office-path
ExecStart=/usr/local/bin/private-task

Ekufakweni kwe-systemd, ExecCondition= igijima leso sihloli ngaphambi komthwalo womsebenzi. Ukuziphatha kwayo ekuphumeni kucacile: uziro uyaqhubeka, amakhodi kusukela kwelilodwa kuya ku-254 eqa imiyalo yokuqala esele ngaphandle kokuphawula iyunithi njengokwehlulekile, futhi u-255 noma ukuphela okungajwayelekile kuyenza yehluleke. Lokho kunikeza izimpawu ezintathu ezihlukene, eziwusizo kuphela uma isivumelwano somhloli sifakwe kuzo ngamabomu. Izilungiselelo ezichaza kabusha impumelelo zingashintsha isithombe, ngakho bhala ukumephu.

Ukuqopha ukweqa yikho okwenza umklamo uthembeke. Ukugijima okweqiwe okungaveli ndawo akukwazi ukuhlukaniswa nokugijima okuphumelele, futhi ukuthatha wonke amaphutha omhloli njengokweqa okuthule kufihla ukufakwa okugqekile ngokungapheli.

Vikela ukugijima konke, hhayi isiqalo kuphela

Ukuhlolwa kokulungela kubona umhlaba ngaphambi kokwethulwa; akugadi isokhethi ngayinye ngemuva kwalokho. Lapho indlela eqondile ingalokothi yamukeleke kulo msebenzi, namathisela inqubomgomo yokuphuma egunyaziwe eqhutshwa ngokuqhubekayo futhi ehlanganisa i-DNS, i-IPv6 kanye nokuthutha kwethumbu uqobo. Ukushintsha isimo se-IPv6 somhlaba wonke soseva akusona isikhundla senqubomgomo elinganiselwe emsebenzini.

Nquma ukuthi umcimbi omusha ungase unqamule umsebenzi osagijima, gcina lowo mthetho kumnikazi womthwalo womsebenzi, futhi wenze umzamo wokuphinda uphephe umsebenzi wedatha. Ukumisa umsebenzi lapho kunqanyulwa kunciphisa umsebenzi kodwa akuqinisekisi lutho mayelana nethrafikhi yokubuyela emuva.

Yamukela ukuhamba komsebenzi ezimweni ezintathu: indlela elungile, indlela engatholakali, nokulahlekelwa phakathi nokugijima. Noma yini engaphansi kwalokho ihlola ishejuli, hhayi umsebenzi.