Apple Mac OS X Server manual 294

294

NFS Network File System. A client/server protocol that uses Internet Protocol (IP) to allow remote users to access files as though they were local. NFS exports shared volumes to computers according to IP address, rather than user name and password.

nfsd daemon An NFS server process that runs continuously behind the scenes and processes read and write requests from clients. The more daemons that are available, the more concurrent clients can be served.

Open Directory The Apple directory services architecture, which can access authoritative information about users and network resources from directory domains that use LDAP, NetInfo, or Active Directory protocols; BSD configuration files; and network services.

Open Directory master A server that provides LDAP directory service, Kerberos authentication service, and Open Directory Password Server.

open relay A server that receives and automatically forwards mail to another server. Junk mail senders exploit open relay servers to avoid having their own mail servers blacklisted as sources of junk mail.

ORBS Open Relay Behavior-modification System. An Internet service that blacklists mail servers known to be or suspected of being open relays for senders of junk mail. ORBS servers are also known as “black-hole” servers.

owner The owner of an item can set Read & Write, Read only, or No Access permissions for Owner; Group; and Others. The owner also can assign ownership of an item to another user, and Group privileges to another group. By default the owner has Read & Write permissions.

parent A computer whose shared directory domain provides configuration information to another computer.

PHP PHP Hypertext Preprocessor (originally Personal Home Page). A scripting language embedded in HTML that’s used to create dynamic webpages.

POP Post Office Protocol. A protocol for retrieving incoming mail. After a user retrieves POP mail, it’s stored on the user’s computer and is usually deleted automatically from the mail server.

predefined accounts User accounts that are created automatically when you install Mac OS X. Some group accounts are also predefined.

preferences cache A storage place for computer preferences and preferences for groups associated with that computer. Cached preferences help you manage local user accounts on portable computers.

Glossary