BDLS Conversion of logical system names
Personnel planning
The SAP Basis is responsible for the smooth operation of the programmes in the SAP system. It acts as an operating system for R/3 and subsequent releases including S/4HANA. Each operating system provides an environment in which programmes can run, such as MS Office on Microsoft Windows. Likewise, the SAP base system with the NetWeaver and HANA platform offers an environment in which the SAP programmes can run. In this context, the NetWeaver platform itself relies on server operating systems such as Windows and Linux.
The presentation layer is the interface to the users. Through a graphical interface, users enter data or interact with data through the applications. This presentation layer exchanges data with the application layer.
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There was even a case where the SAP environment required a review of the data center power and cooling. At that time, the data center infrastructure had to be upgraded before we could even proceed.
Another important example is the reading permission for TemSe objects. The temporary files are often forgotten, because it is often not considered that cached (strictly) sensitive data, which is intended for only one user (owner), can be viewed by another user without permission - and across clients. The examples mentioned show us how important it is to carefully assign permissions for client-independent transactions. Download Transaction tables The transactions that enable the examples above, including certain expressions of the associated permission objects and our recommendations for them, can be found in the file "Critical cross-client permissions" for download. Other client-independent transactions are located in the Cross Clients TCODES file. The criticality of these transactions should be assessed according to the context. I recommend always being careful and keeping these transactions in mind.
Tools such as "Shortcut for SAP Systems" complement missing functions in the SAP basis area.
All methods combined can provide even greater safety.
The website www.sap-corner.de offers many useful information about SAP basis.
Different algorithms are used to calculate these values, but only the Salted SHA1 can be considered sufficiently safe.