Why does rsh fail with this error message?

                    "rcmd: socket: Permission denied"


Assuming the r-command files have been setup correctly, this error message
is caused when the file privileges for rsh (remote shell) are missing.  The
error message most users see is the following.

        $ rsh jester who
        rcmd: socket: Permission denied

The root user will see just see this.

        # rsh jester who
        Permission denied.

To test if file privileges are missing run filepriv on rsh.

        # filepriv /usr/bin/rsh
        # 

The normal privileges for rsh are the following.

        # filepriv /usr/bin/rsh
        fixed   dev,filesys,driver

To restore the file privileges on remote shell(rsh) run the following as root.

        # filepriv -f dev,filesys,driver /usr/bin/rsh


For more information see filepriv(1), faq "How do I restore file privileges?".