I'm not sure where you are going with this question, but I'll give it a go.
The server configuration files are in SASV9.CFG, but it's location is dependent on installation parameters that you set. You can just search for the file name. Some configuration parameters can also be set in AUTOEXEC.SAS and on the SAS command execution.
The SAS execution log for any EGuide task is located with the task. Just right-click on the task in the process flow.
To my knowledge, nothing that is SAS-specific goes in the system logs (the use of the SAS program itself might be there, but nothing about how it was used).
Thanks Doc@Duke. The reason I was asking this was to understand if the default installation (unix and wintel) typically puts it in one particular directory. I read about the logs from SAS for dummies, but it doesnt say much about how to interpret what you see in the log, or how to debug sas programs.
Hopefully, I'll find out more from the little sas book soon.