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單項(xiàng)選擇題

A non-root user can run rsh commands from serverA to serverB, but attempts to run rsh 
commands by the root user return with a permission error message.
What action will resolve the problem?()

A.Add root user to the /etc/hosts.equiv on serverB .
B.Create $HOME/.rhosts file for the root user on serverB .
C.Restart the rshd daemon with root enabled option on serverB .
D.Add entry to allow root user from serverA to the /etc/hosts.allow on serverB .

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