I-VPN ku-Mac ngesikhathi sokuqalisa: i-launchd yengamela umsebenzi, hhayi ithaneli

Umsebenzi uyasebenza ngesikhathi sokungena, ilogi ibonisa iklayenti liqala, kodwa ithaneli alikhuphuki neze. Noma liyakhuphuka bese linyamalala ngemizuzwana embalwa kamuva. Kuzo zombili izimo uhlu lwezici cishe lalilungile. I-launchd yenza izethembiso ezimbili ngesikhathi yamukela umsebenzi: izoqapha inqubo, futhi leyo nqubo izoqhubeka isebenza. I-VPN idinga kokubili, futhi ifayela le-XML elilungile alinikezi noma yikuphi.

Uhlu lwezici olusemthethweni akulona isevisi esebenzayo

I-plutil -lint ihlola isakhiwo. Ayikwazi ukukutshela ukuthi ifayela le-binary likhona yini, ukuthi izimpikiswano zisekelwa yilolu hlobo lweklayenti, noma ukuthi umsebenzi uqala esimweni lapho izinkulumo zokungena zikhona. Le mikuzo ingemibuzo yencazelo, futhi ichaza iningi lokwehluleka okubonakala njengezinkinga ze-launchd.

plutil -lint /Library/LaunchDaemons/com.example.vpn.plist
launchctl print system/com.example.vpn

Funda okukhishwe umyalo wesibili esikhundleni sokucabanga ukuthi umsebenzi ulayishiwe. Kubika isimo sokugcina sokuphuma nokuthi isevisi iyasebenza yini, okuhlukanisa "akukaze kuqale" kusuka "kwaqala kwafa" ngaphambi kokuthinta iphrofayela.

Ama-ejenti azuza isikhathi somsebenzisi, ama-daemon awakwenzi

Imibhalo ye-Apple ye-launchd ihlukanisa ama-ejenti omsebenzisi ngamunye kuma-daemon wesistimu. I-ejenti isebenza esimweni somsebenzisi ongenile, nesiketi sakhe sokhiye kanye nendawo ezungezile. I-daemon isebenza ngaphandle kwaleso sikhathi, futhi ukuhambisa umsebenzi kudokhumenti yesistimu akukhiqizi kabusha izinkulumo zokungena ezisebenzisanayo zomsebenzisi.

Lomehluko uwona onquma umklamo. Uma uxhumano ludinga ukuthi umuntu angene noma agunyaze isicelo se-MFA, ilungiselelo elisekelwayo umsebenzi esikhathini somsebenzisi osebenza ngemva kokungena. Uma kufanele sisebenze ngaphandle kokuthi kukhona ongenile, iklayenti lidinga ubunikazi obugunyaziwe obunganakiwe obunqubo yalo yokuvuselela nokuhoxisa. Ukukhetha umugqa ongafanele kukhiqiza umsebenzi oqala ngokuhlanzekile bese uhluleka esinyathelweni sokuqala sokuqinisekisa.

Ungasitheli lowo mehluko ngephasiwedi kuhlu lwezimpikiswano noma ngokucisha ukuhlola izitifiketi. Kokubili kuguqula isidingo sokuqinisekisa sibe yimfihlo unomphela efayeleni elifundekayo, futhi okwesibili kusho ukuthi ithaneli liqinisekisa noma yini ephendulayo.

Ukugadwa kusebenza kuphela uma inqubo ihlala phambili

Iklayenti eliziguqula libe yi-daemon libuyisela ukulawula ku-launchd ngokushesha, bese umgadi ebuka inqubo esevele iphelile. Ithaneli lingase likhona, kodwa i-launchd icabanga ukuthi umsebenzi wehlulekile, futhi inqubomgomo yayo yokuqalisa kabusha izokwenza into obungayihlosile.

Sebenzisa imodi yaphambili noma yesevisi ebhalwe yiklayenti. Uma umkhiqizo unesici sakhe sokuqalisa esisekelwayo, leso sici sesivele sazi indlela yokuhlala phambili nendlela yokudlulisela kusitaki senethiwekhi; umsebenzi wangokwezifiso uwumklamo ohlukile, hhayi ukuthuthukiswa kwawo.

Nika umsebenzi ilebula ehlukile, ifayela lokusebenza elihlosiwe kanye nohlu lwezimpikiswano oluhleliwe. Uhlu akulona umugqa womyalo we-shell, ngakho amapayipi nokuqondisa kabusha akusebenzi lapho, futhi ukucaphuna kuziphatha ngendlela ehlukile. Umyalo ophumelelayo kutheminali yomphathi uwukuhlola kokuqala kuphela.

Izinkulumo zokungena kufanele zisebenze ngaphandle kwesicelo

Ukusebenza okunganakiwe kuhambisa inkinga yezinkulumo zokungena esikhundleni sokuyisusa. Othile kufanele abe nobunikazi, anqume ukuthi buphila isikhathi esingakanani, futhi abhale indlela obushintshwa ngayo. Isitifiketi esingenakugadwa kokuphelelwa yisikhathi siba ukuphazamiseka okunosuku ekhalendeni.

Gcina izimfihlo ngaphandle kwezimpikiswano nangaphandle kokukhishwa okujwayelekile komsebenzi. Uma iklayenti lisekela ukufunda inkulumo yokungena esitolo esivikelwe, sebenzisa leyo ndlela, futhi uhlole ukuthi isimo sokuphumelela somsebenzi siyafinyelela esitolo. I-daemon esebenza njenge-root ngokuvamile ayikwazi ukufunda into kusiketi sokhiye wokungena, futhi lena iwuhlobo lwemininingwane evela kuphela esimweni sesistimu.

Chaza ukuthi ukulungela kusho ukuthini, bese uhlola lapho

Ukuqaliswa okuphumelelayo kufakazela ukuthi inqubo yaqala. Akufakazeli ukuthi inethiwekhi ikhona, ukuthi isango lamukele ubunikazi, noma ukuthi uhlelo lokusebenza lwangasese luyafinyeleleka. Uma okunye kuncike ethaneli, kudinga isignali yokulungela ekhombisa uxhumano, hhayi isikhathi sokuqala komsebenzi.

Imizamo yokuphinda kufanele ibe nomkhawulo futhi ihlukanise inethiwekhi engekho nenkulumo yokungena enqatshiwe. Ukuqalisa kabusha kukho konke ukwehluleka akukwazi ukulungisa isitifiketi esiphelelwe yisikhathi futhi kukhiqiza ilogi egcwele imizamo efanayo efihla eyangempela.

Yamukela umsebenzi esimweni lapho uzosebenza khona ngempela: akukho nethiwekhi ngesikhathi sokuqalisa, ukungena okuvamile, ukuvuka ebuthongweni nokuma okulawulwayo. Bese ubhala ndawonye ilebula lomsebenzi, inguqulo yeklayenti nokubuyekezwa kwephrofayela, ukuze umuntu olandelayo azuze isevisi enokubalwa esikhundleni sefayela elake lasebenza.