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

A.User’joe’isspecifiedinthe/etc/nologinonSYSTEMb.

B.User’joe’isspecifiedinthe/etc/nologinonSYSTEMa.

C.Thefilepermissionsonthe/home/joe/.rhostsfileonSYSTEMAareincorrect.

D.Thefilepermissionsonthe/home/joe/.rhostsfileonSYSTEMBareincorrect.


参考答案

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