【单项选择题】
A non-root user can run rsh commands from serverA to serverB， but attempts to run rsh <br /> commands by the root user return with a permission error message.<br /> What action will resolve the problem？（）<p> A non-root user can run rsh commands from serverA to serverB， but attempts to run rsh <br /> commands by the root user return with a permission error message.<br /> What action will resolve the problem？（）</p>
A、A.Add root user to the /etc/hosts.equiv on serverB .
B、B.Create $HOME/.rhosts file for the root user on serverB .
C、C.Restart the rshd daemon with root enabled option on serverB .
D、D.Add entry to allow root user from serverA to the /etc/hosts.allow on serverB .
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