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Auserwiththeuseridof’joe’isunabletorshfromSYSTEMAtoSYSTEMBwithouthavingtoretypetheirpassword,buttheycanrshfromSYSTEMBtoSYSTEMA.Nootherusersareexperiencingthesameissue.Bothsystemshavea/home/joe/.rhostsfilethatcontaintheproperreferencestotheotherhost.The/home/joe/.rhostsfilesonbothSYSTEMAandSYSTEMBareownedbyuserid’joe’.Whichofthefollowingisthemostlikelycauseofthisproblem?()

A.User’joe’isspecifiedinthe/etc/nologinonSYSTEMA

B.User’joe’isspecifiedinthe/etc/nologinonSYSTEMB

C.Thefilepermissionsonthe/home/joe/.rhostsfileonSYSTEMAiscorrect.

D.Thefilepermissionsonthe/home/joe/.rhostsfileonSYSTEMBisincorrect.


参考答案

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