Network Troubleshooting: Logged On Users
When troubleshooting a networking problem, it’s often useful to find out who is actually logged on to a network server. For example, if a user can’t access a file on the server, you can check whether the user is logged on. If so, you know that the user’s account is valid, but the user may not have permission to access the particular file or folder that he’s attempting to access.
On the other hand, if the user isn’t logged on, the problem may lie with the account itself or how the user is attempting to connect to the server. It’s also useful to find out who’s logged on in the event that you need to restart the server.
To find out who is currently logged on to a Windows server, right-click the Computer icon on the desktop (My Computer in Windows Server 2003, Computer in Windows Server 2008) and choose Manage from the menu that appears. This brings up the Computer Management window. Open System Tools in the tree list and then open Shared Folders and select Sessions. A list of users who are logged on appears.
You can immediately disconnect all users by right-clicking Sessions in the Computer Management window and choosing All Tasks→Disconnect All.