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HP-UX Reference > Uuserdb(4)HP-UX 11i Version 2: December 2007 Update |
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NAMEuserdb — user database, storing per-user information DESCRIPTIONThe user database is used for storing per-user information. It consists of the /var/adm/userdb directory and the files within it. Each file is a two-digit hexadecimal number from 00 to ff. The directory and files are created at installation time. The per-user information resides in user entries in the database, and consists of any number of attribute=value pairs, which are used to define the behavior of configurable features. A per-user value in /var/adm/userdb overrides any system-wide default configured in the /etc/default/security file, as described in security(4). The /etc/security.dsc file indicates which attributes can be configured with a per-user value in /var/adm/userdb. This list includes the following attributes which are described in security(4):
NotesWhen defining attributes, first configure default values in /etc/default/security, as described in security(4), and then configure per-user exceptions in the user database, /var/adm/userdb. In addition to the configurable attributes, there are internal attributes that are not user configurable and are normally modified only by programs that enforce system security. The file /etc/security.dsc indicates which attributes are configurable and which are internal. Use the userdbck command to verify or fix information in the user database, /var/adm/userdb. To disable the user database, create a file called /var/adm/userdb/USERDB.DISABLED. This causes all database reads and writes to return an error code indicating that the database is disabled and should be ignored. Note that, if the user database is disabled for a long period and then re-enabled, it will contain stale data. This can cause unwanted side effects. WARNINGSUse the userdbset command to modify information in /var/adm/userdb. Do not use a text editor, because the database contains checksums and other binary data, and editors do not follow the file locking conventions that are used to control access to the database. NFS mounting this database is not supported. |
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