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Websphere MQ Security in an Enterprise Environment by IBM Redbooks, Saida Davies

By IBM Redbooks, Saida Davies

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Authorization to access the dynamic queue to which model queue resolves Dynamic queues and generic names can be created for those. There are several things to consider here too, but it is especially important to ensure that the dynamic queue names have appropriate profiles defined for them. This will, most likely, involve the use of a generic profile. Resource security checking is performed during closure of permanent dynamic queues. This is performed if an 54 Chapter 4: Platform Security Chapter 4: Platform Security 55 application opens a permanent dynamic queue that it did not create and then attempts to delete it; an additional security check is carried out to see if it has authority to do so.

MQ commands Command security and command resource security checking (the latter part, above) were originally designed to be used together to provide a greater granularity to determine whether the issuer of the command was allowed to issue it, whether that command affected a resource, and whether they were allowed to issue that particular command for the given resource. If both are active, then all commands issued that affect resources will have both security checks carried out and must pass both checks for the command to be issued.

For example, if a user called ALICE on machine A is created with password wonderland it will not have the same SID on machine B. This is important in the context of WebSphere MQ since the SID is passed in the MQ Message Descriptor (MQMD). When a user logs on to Windows 2000, an access token is created. The access token is a combination of the user account SID, the SID of the groups that the user belongs to, and a Locally Unique Identifier (LUID). The access token is the token that is checked when accessing resources.

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