Ungakusheshisa kanjani ukuxhumana kwe-SSH ku-GNU / Linux

I-Las Ukuxhumana kwe-SSH ungomunye we amathuluzi asetshenziswa kakhulu yiSysAdminLokhu ikakhulukazi kungenxa yokuguquguquka kwayo nezinketho ezinhle kakhulu zokuphepha, kepha njengoba cishe kuzo zonke izinketho zokuxhuma kunezindlela eziningi zokuyisebenzisa futhi ezinye zisho ukuthi ijubane elitholakalayo alihlali lingcono ngaso sonke isikhathi. Kulezo zimo, ngeshwa, kuzofanele sisebenzise ezinye izinhlobo zokulungiswa ezisivumela ukuthi sithole ikhwalithi yokuxhumana enesizotha futhi evikelekile, yingakho sifuna ukukhombisa Izindlela ezi-3 zokusheshisa ukuxhumana kwe-SSH ku-GNU / Linux.

Ngokuyisisekelo, sifuna ukukhuluma ngakho izinketho zokucushwa lokho kuzosivumela ukuthi sinqobe izithiyo ezinjengokuxhumeka okungalungile, noma iqiniso lokuthi senza ukuxhumana okuningi ngasikhathi sinye kuseva efanayo, kwezinye izimo size sifinyelele kumathuluzi wokuqhafaza X Ukudlulisa, engenza ijubane elidingekayo libe phezulu.

Enye yezinto zokuqala esingayenza phoqelela ukuxhumana kwe-SSH nge-IPv4Le protocol iphinda ivume ukuxhumana ne-IPv6 entsha, okuthi ngesikhathi esithile igcine idingeka ngokuphelele kepha okwamanje ayidingeki, futhi iqiniso lokusebenzisa ukwesekwa kwakho kokubili lisho ukuthi kwesinye isikhathi ukuxhumana kungaba yinto ehamba kancane. Kepha singaxhuma kunoma iyiphi iseva sisebenzisa i-SSH kuphela nge-IPv4 sisebenzisa ipharamitha "-4" Ngokulandelayo:

# ssh -4 umsebenzisi@remoteserver.com

Enye indlela yokufeza lokhu ukuguqula ifayela lokumisa / etc / ssh / ssh_config, kufanele sibheke kuphi kulayini "IkheliFamily" futhi umshiye ngesibindi "Okungaphakathi", okusho ukuthi sizoxhuma sisebenzisa i-IPv4.

Okunye ukumisa okuzosivumela ukuthi sithuthukise isivinini yilokho kwe- khubaza i-DNS Lookup kukhompuyutha ekude, futhi ukuthi konke lokhu kokubheka i-IP yekhompyutha futhi ukuthola kuyo igama lomsingathi kuyinto edinga izinsizakusebenza futhi esiza ukwenza izinto zihambe kancane, okufanele futhi siye kuzilungiselelo zefayela iseva ye-SSH, (/ etc / ssh / sshd_config) bese ushiya inketho "SebenzisaDNS" ngesibindi "hhayi". Singakwazi futhi phoqelela ukusetshenziswa kabusha kokuxhuma kwe-SSHNgamanye amagama, lapho kusungulwa ukuxhumana okusha kuzokwenziwa umzamo wokusebenzisa kabusha osekuvele kumisiwe, okuthile okungashesha impela kunokudala okusha.

Ngenxa yalokhu, siya kufayela / etc / ssh / ssh_config bese ufaka imigqa elandelayo:

Isilawuli se-ControlMaster
I-ControlPath - /. I-Ssh / amasokhethi /% r% h-% p
Abalawuli be-ControlPersist 600

Ulayini wokugcina (i-ControlPersist) uzotshela insizakalo ye-SSH ukuthi igcine ukuxhumana kuvulekile -kodwa ngemuva- amasekhondi angama-600 ngemuva kokuthi ivaliwe, ukuyisebenzisa futhi uma kwenzeka ithole isicelo esisha sokuxhuma. Uma sifaka umugqa "Igama lomethuleli igama lomsebenzisi" singakhombisa ukuthi lokhu kulungiselelwa kusetshenziselwa kuphela Ukuxhumana kwe-SSH kwikhompyutha ethile, esiyifaka esikhundleni se-servername ngegama elifanele.

Ngalezi zinguquko ezilula singafinyelela ukuthuthuka okuthile kufayela le- isivinini sokuxhuma kwe-SSH futhi nangesikhathi esithathayo ukusungula, into engeke ibonakale kithi uma sinomkhawulokudonsa omningi futhi sisebenza kunethiwekhi yendawo, kepha esizokuthokozela impela uma sixhuma kumaseva amaningana akude.