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When to use RSH commands with user names and passwords

Depending on the UNIX host you use and how you log in to the UNIX host, you might need to supply a user name and a password when using the RSH protocol to run a command on the storage system.

If the UNIX host you use is not listed in the storage system’s /etc/hosts.equiv file, you must supply both a user name and a password when using the RSH protocol to run a command on the storage system.

If the UNIX host you use is listed in the storage system’s /etc/hosts.equiv file and you are logged in as root on the UNIX host, you do not need to supply a user name or a password when using the RSH protocol to run a command on the storage system.

If the UNIX host you use is listed in the storage system’s /etc/hosts.equiv file and you are logged in as a user other than root on the UNIX host, the following rules apply when using the RSH protocol to run a command on the storage system:

The user name can be root or the name of an administrative user that is defined on the storage system.

Note: To issue commands from a Remote Shell on a PC, you must always supply a user name for the PC in the storage system’s /etc/hosts.equiv file. For more information, see the na_hosts.equiv(5) man page.