Introducing Arcserve Backup Agents and Options › Using Agents › Client Agent › Adding and Configuring the Client Agents › UNIX, Linux, and Mac OS X Client Agent Configuration › Common Agent Configuration File for UNIX, Linux, and Mac OS X › Host Equivalence User Credentials

Host Equivalence User Credentials

When the Common Agent checks user credentials, it gives preference to host equivalence settings of the system. A UNIX, Linux, or Mac OS X system can be set up to grant access for specific users on specific hosts without requiring the user to provide credentials. You can grant this access by adding the specific user IDs to the /etc/hosts.equiv or .rhosts file. By default, the Common Agent follows these rules, then checks the user’s password for authorization. To disable host equivalence checking, define the NO_HOSTS_EQUIV=1 environment variable in the agent.cfg file, as shown in the following example:

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#[ABcmagt]
NAME	ABcmagt
HOME	/opt/Arcserve/ABcmagt
ENV	NO_HOSTS_EQUIV=1

You can place the Common Agent in No Password mode or Single User mode with a set of access control lists if necessary. For more information about ACLs, see UNIX, Linux, and Mac OS X Access Control Lists.