The NetSessionEnum function is used to track user logouts.
Study Guide - FSSO - FSSO with Windows Active Directory - Collector Agent-Based Polling Mode Options.
Collector agent-based polling mode has three methods (or options) for collecting logon info: NetAPI, WinSecLog and WMI.
NetAPI: Polls temporary sessions created on the DC when a user logs on or logs off and calls the NetSessionEnum function on Windows. It's faster than the WinSec and WMI methods; however, it can miss some logon events if a DC is under heavy system load. This is because sessions can be quickly created and purged form RAM, before the agent has a chance to poll and notify FG.
NetAPI: polls temporary sessions created on the DC when a user logs in or logs out and calls the NetSessionEnum function on Windows. It's faster than the WinSec and WMI methods; however, it can miss some login events if a DC is under heavy system load. This is because sessions can be quickly created and purged from RAM, before the agent has a chance to poll and notify FortiGate.
Incorrect:
A: NetAPI polling can increase bandwidth usage in large networks. (WinSecLog) C: The collector agent must search security event logs. (WinSecLog) D: The collector agent uses a Windows API to query DCs for user logins. (WMI)
- WinSecLog: polis all the security event logs from the DC. It doesn't miss any login events that have been recorded by the DC because events are not normally deleted from the logs. There can be some delay in FortiGate receiving events if the network is large and, therefore, writing to the logs is slow. It also requires that the audit success of specific event IDs is recorded in the Windows security logs. For a full list of supported event IDs, visit the Fortinet Knowledge Base (http://kb.fortinet.com).
- NetAPI: polls temporary sessions created on the DC when a user logs in or logs out and calls the NetSessionEnum function on Windows. It's faster than the WinSec and WMI methods; however, it can miss some login events if a DC is under heavy system load. This is because sessions can be quickly created and purged from RAM, before the agent has a chance to poll and notify FortiGate.