EXP Computer ThinConnect4 Guide de l'utilisateur télécharger pdf (Page 108)

Chapter 8

Other Features

8.1 Anonymous Usernames

By default, the thin driver disallows blank usernames to be passed to it during database

connection. A valid username for that database must be used. If the client attempts to connect

to the database using a blank username the following exception will be raised:

rdb.RdbException: Io exception : Io exception :

in <rdbjdbcsrv:connect>

%RDB-E-AUTH_FAIL, authentication failed for user .Anonymous.

The following server configuration option can be used to change this behavior:

anonymous

Use this option tells to allow anonymous connections (that is, where the username is blank)

to the Oracle JDBC for Rdb thin server, for example:

$ java -jar rdbthinsrv.jar -anonymous

In addition, if anonymous connections are allowed, you can specify the default username and

password to use on an anonymous connection by using the following options:

username <username>

password <password>

Example

For example:

$ java -jar rdbthinsrv.jar -anonymous –

-username fred -password "jones"

8.2 BYPASS Privilege

Privilege checking on Oracle Rdb uses the layered method. Sometimes it is not obvious how

privilege checking obtains its results.

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EXP Computer ThinConnect4 Guide de l'utilisateur Page 108