InfoCenter Home > 5.7.4: Tracing SASThe Secure Association Service (SAS) uses a messaging model, so for every SAS request, there is a response. In a distributed environment, where a client can call a server, which can then act as a client and call another server, solving security-related problems often requires tracing multiple servers simultaneously. Frequently, these servers reside on the same machine; the interaction between an administrative server and an application server is often where problems arise. The administrative server includes a component called the security server, which performs authentication work, and messages are frequently exchanged between the application server and the administrative server during authentication. Furthermore, the administrative server stores authorization information in a repository, so authorization requests result in additional traffic between the administrative server and the application server.Collecting information about SAS messages is often crucial for debugging security problems, and SAS provides a set of properties that govern the collection of SAS messages, including the types of messages and the destination of the collected messages. These properties are set in the property file used by each server; this is typically the sas.server.props file. The SAS message and trace logging facility captures information about the following different types of events:
This behavior is determined by the value of the
The value of the In addition, you can selectively send the messages for each type of event to a file. For each type of event, you set an output-mode property. The output mode determines determines where the messages collected for the event, for example, activity, are collected. You can use any of the following output modes:
To send all trace messages to the standard output stream, use the following settings: com.ibm.CORBA.securityDebug=console com.ibm.CORBA.securityTraceLevel=intermediate |
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