Security Guide for the SAP System Landscape Directory 
The SAP System Landscape Directory (SLD) is a J2EE application component that runs on the SAP Web Application Server. The SLD acts as the central information provider for all installed system components in your system landscape. For more information, see the SLD documentation at http://www.sdn.sap.com/irj/sdn/nw-sld.
Caution
If you are reading this documentation offline, bear in mind that this might not be the latest version and that it might contain broken links. You can find the latest version on SAP Help Portal at http://help.sap.com/nw70 SAP
NetWeaver 
7.0 Library English 
SAP NetWeaver Library Administrator's Guide SAP NetWeaver Security Guide Security Aspects for System
Management Security Guide for the System Landscape Directory. 
Security Considerations
The SLD contains specific data about each individual system landscape. This data must be protected from unauthorized access. This security guide contains recommendations for protecting your data and covers the following areas:
Securing Connections to the SLD:
Access Restrictions: