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The tasks of an SAP Basis administrator are management and administration of SAP systems. In practice, it means taking responsibility for the maintenance environment of the systems, their cooperation, updating, solving user problems and efficiency issues (concerning the network, databases or operating systems), backup copies and architecture. Another task of this position is also to follow new market trends and propose solutions compliant with them.
Meanwhile, there are other ways to build consensus. But, for the most part, the following three options have proven effective as a consensus mechanism: 1) Proof of Work 2) Proof of Stake 3) Proof of Importance The differences are presented in another blog post. How do blocks form in a blockchain? Each block will build irrevocably on an older block. If you were to remove the block, you would also have to remove all blocks above it, which would destroy the entire chain of blocks. Because each new block also contains information from its predecessor block. This is very important for understanding the immutability of a blockchain. If you were to manipulate a block afterwards, you would have to adjust all the blocks that follow. The effort would be so infinitely large and expensive that such a manipulation can practically not be implemented. You can think of it as this. A blockchain arises from the cryptographically linked blocks (puzzles) full of transactions (puzzle pieces) and therefore cannot be changed without destroying the entire blockchain. For this reason, a blockchain is seen as an immutable transaction history agreed upon by a decentralised community. A blockchain is programmed to work with each miner on the longest part of the blockchain, as this is obviously the chain in which most of the work has been invested.
The results of the tests can be documented so that the development can be considered over a period of time. This way, you will be aware of the revision and of the relevant issues before the examination.
A secure SAP system does not only include a good role concept. It is also necessary to check whether a user should (still) have a specific role. Regular verification of role assignment is called recertification. In this blog post, I'd like to introduce you to the need for recertifications and our own tool, EasyReCert. The need for recertification - scenarios: Example 1: The "apprentice problem" Imagine the following scenario: A new employee (e.g. apprenticeship or trainee) will go through various departments as part of his or her training and will work on various projects. Of course, an SAP User will be made available to your employee right at the beginning, which is equipped with appropriate roles. As each project and department passes, the employee repeatedly needs new permissions to meet the requirements. After the employee has successfully completed his or her induction and is now in a permanent position, he or she still has permissions that are not necessary to perform his or her duties. This violates the principle of "last privilede" and represents a potential security risk for your company. Example 2: The change of department The change of department is one scenario that probably occurs in every company. If a change of department does not automatically involve a complete reallocation of roles and the employee simply takes his old permissions with him, critical combinations of permissions can occur very quickly. For example, an employee who has permissions in accounts payable and accounts receivable violates the SoD ("Segregation of Duties") principle and poses a potential security risk to your company. Recertification as part of a revision: The two examples above show that a regular review of role allocation identifies potential security risks for your business and can be addressed.
"Shortcut for SAP Systems" makes many tasks in the area of the SAP basis much easier.
For more information, see Steps of the SPAM [page 26].
If table logging is active in your system, you can specify which tables are to be logged in transaction SE13.