The topics in this section discuss some of the configuration items in the Setup menu that define how the system behaves. 

• System Time Settings: The knowledgebase time zone determines when rules in the system run. This is especially important when the knowledgebase server is in a different location from the user's local time or other users' time zones. 
• Security: These key security settings are essential for securing your system.
• Variables: Variables are values stored in predefined formats that control a large range of system behavior and can be used in places such as formulas, print templates, and email templates.
• Activity Logs: Activity logs control how the system tracks usage and statistics. You can use activity logs to audit behavior and troubleshoot issues. 
• Synonym Dictionaries: Dictionaries control the behavior of synonym searching.
• Storing Attachments in S3: Review your system settings for managing attachments that are backed up to S3 storage.