R/3 SAP Basis System Structure
Integration of SAP Notes
It is possible to specify a trace level for each rule in the ACL file to monitor each communication channel individually. It can be used with SNC without any further configuration. The use of the file is controlled by the gw/acl_file parameter by simply setting it to the appropriate file name. Use of external programmes If an external programme wants to communicate with your SAP system, it must first register at the gateway. The programmes which this is approved are controlled by the reginfo ACL file. This defines rules that allow or prohibit certain programmes. The syntax of the file allows you to define not only the name of the programme, but also the host on which the programme runs and hosts that can use and exit the programme. The gw/reg_info parameter must be set to use this file. In addition, there is the ACL file secinfo, which allows to configure which users can start an external programme. This defines rules that allow certain usernames from the SAP system to use certain external programmes. In addition, you can also define the hosts on which these programmes will run. For example, it is possible to allow a user to run the programme "BSP" on the host "XYZ", but not on the host "ABC". This file is controlled by the gw/sec_info parameter. Using the gateway as a proxy Since the gateway of your SAP system can also serve as a proxy server, the prxyinfo ACLDatei should also be activated via the gw/prxy_info parameter. Suppose you have 3 SAP systems in your network: SRC, TRG and PRX. If SRC cannot communicate directly with TRG, but both with PRX it would be possible to use the gateway of the PRX system as a proxy server, i.e. to communicate via it. So, in order to prevent this from happening to everyone, this property should be urgently restricted. As with the other ACL files, rules are defined which hosts can communicate with which hosts via the gateway. The syntax of the different ACL files may vary depending on the release level. It is therefore advisable to read them in the appropriate SAP documentation before activating the ACL files. You can also find more support for using ACL files in the SAP Community Wiki.
The application servers provide the services for running SAP applications. In practice, companies usually decide to use a separate application server for each application.
Some useful tips about SAP basis can be found on www.sap-corner.de.
Solution Manager
Do you want to allow an employee access to exactly one view maintenance dialogue, but he should not be able to search for other care views in the SM30? This can be done easily with a parameter transaction. Learn how to create such a transaction step by step here. To create a parameter transaction, navigate to the SE93 first. Here you can create all types of transactions. The following dialogue will open: After pressing the "Create" button, a popup will open, on which you select the radio button "Transaction with parameters (parameter transaction)". In addition, type a short description as usual and confirm. The following dialogue will open: The transaction code must be specified here first. If you want to skip the entry dialogue when invoking the parameter transaction, and there is no way to open tables other than the one you want, make sure to select "Skip Entry Image". Furthermore, the GUI properties of the SM30 should be inherited so that the parameter transaction can be started with the same software. Configuration of the parameters In the lower part of the dialogue you will find a table ready for input. Here you can use the search help (F4).
In addition to the database, the SAP system itself is installed. This installation is planned using a tool from SAP, the "Maintenance Planner", and then carried out using the SWPM (Software Provisioning Manager) and SUM (Software Update Manager) tools.
Use "Shortcut for SAP Systems" to accomplish many tasks in the SAP basis more easily and quickly.
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So much information... how can you keep it so that you can find it again when you need it? Scribble Papers is a "note box" that makes this very easy.
It provides the necessary data to all other applications.