Installation & Configuration - RFC

RFC Server Parameter:

The Data in "SAP Syst." will be changed accordingly.  If the System is still (invalid) then please run the "Check Config" incl. login process before or enter manually a correct value (IP address or server name).

NB.: the -atraxsicon part defines the Program ID (as in transaction SM59). You can change this here but this would be the default.
See for further information on SAP Help.