Creation of documentation
Definition
Today, "SAP Basis" often does not mean (only) the software architecture. Instead, the term is not infrequently a task description. This refers to the basic administration of the system: installation and configuration, resource management, maintenance and monitoring of a company's SAP setups. This can include user management, patch management and system monitoring. Backup policy, rights management and daily maintenance tasks are also responsibilities of Basis admins.
The security of an SAP system requires protection against unauthorised access, e.g. through the secinfo and reginfo files. A cleanly implemented authorisation concept protects against attacks within the SAP system. However, it is also possible to attack your SAP system via the network. Through the RFC Gateway Server, your system communicates with external servers and programmes. One particularly effective way to protect against this are so-called Access Control Lists (ACL). Find out what this is and how you can use it to better protect your SAP system. The SAP Standard offers different approaches for gate protection. All methods combined can provide even greater safety. For example, it is possible to use Access Control Lists (ACL) to monitor exactly which external programmes and which hosts can communicate with the gateway. Another option is to configure the gateway to support Secure Network Communication (SNC). Finally, there are various security parameters for the gateway. This article focuses on the use of ACL files such as secinfo and reginfo files. What is an ACL? Access control lists are files in which permitted or prohibited communication partners can be recorded. For the gateway to use these ACL files, parameters must be set in the default profile of the SAP system and of course the files must be maintained accordingly. With the help of logs and traces, which can be configured for this purpose, a precise investigation can be made in advance of the activation, which connections currently run via the gateway. This allows them to prevent important applications with which your system communicates from being blocked by the ACL files. The rules in the ACL files are read from top to bottom of the gateway to decide whether to allow a communication request. If none of the rules matches the requesting programme, it will be blocked. Network-based ACL The network-based ACL file contains permitted and prohibited subnets or specific clients.
SAP System Management
SAP Basis is structured as a classic three-tier model. It contains the following components: Database layer (relational database management system) / Application layer (application server and message server) / Presentation layer (graphical user interface).
The logging of data changes in tables using transports should also be active. For this, the "RECCLIENT" parameter in your transport management system (Transakation STMS) must be set to "ALL" at all system levels.
Tools such as "Shortcut for SAP Systems" complement missing functions in the SAP basis area.
The role of the SME describes an expert in a particular field, such as SME databases or SME-SAP-HANA, in the context of SAP products and is gaining in importance due to new technologies and thematic areas.
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