SAP system to be accessed over Internet

Hi All,

There is SAP ECC 6.0 ABAP system. SAP server is installed on AIX 5.3. We need to access this system from Internet (laptop). Since there is Integrated ITS within the system, it was stated that it doesn't need SAP GUI for HTML.

Suggest what are the configuration options available so as to provide secure access to SAP system through Internet.

1. VPN - what configuration needs to be done?

2. Integrated ITS - What settings, parameters need to be configured within SAP system?

Thanks