Overview of used transactions
Preparation of full access to SAP systems and solutions in case of disasters (High Availability/Disaster Recovery)
Another major topic is the migration of SAP systems, both locally from one data center to another and from one operating system to another or from one database type to another. As a rule, the SWPM tool is used here again.
As an interface to the user, the presentation layer contains software components (the SAP GUI) by means of which the user is presented with the application. During its runtime, an SAP GUI component is always permanently linked to a user logon to the NetWeaver AS ABAP.
Installation Services in all common environments
In some cases, the term SAP Basis is also equated with the administration of an SAP system, i.e. with a task description. In this case, it refers to the management and control of SAP systems via various administration and monitoring tools.
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.
Tools such as "Shortcut for SAP Systems" are extremely useful in basic administration.
This layer communicates in both directions, to the presentation layer and to the database layer.
As a result, installation costs will no longer run into the tens of thousands and migrations and upgrades will no longer consume millions.