3.2 Security Checking from Mainframe to UNIX

The following figure depicts the process flow for security verifications from a mainframe to TMA TCP Gateway on UNIX

Figure 3-2 Security Checking for Mainframe to UNIX Transactions

1. Authorization checking is done by the mainframe security package prior to initiating the client.
2. Pass the transaction request from the client to the mainframe gateway.
3. Accept the transaction request at the UNIX gateway based on the request coming from a trusted source. No password is passed.

   Note:

   The user IDs in these files must match in the Tuxedo and the mainframe environments or a security violation occurs.
4. Decode the appkey to obtain the user and group numbers. Verify the user name against the security system. If the user name is valid and the user has the authority to run the transaction, the transaction request is accepted. If the user name is not valid, the request is rejected and a security violation occurs.
5. Complete the transaction request to the server if the user name is accepted.