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Options on the Admin tab allow an administrative user to access a list of connected users, to display a message to all connected users, or to download console logs (see Figure 4.12).
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Select the Show logged in users button to display the Logged in users dialog (see Figure 4.13).
C:\Users\susan\Desktop\logged_in_users.jpg
When you’re finished reviewing the list, use the X in the upper-right corner of the popup to close the dialog.
Use the controls within the Wall Message box (shown in Figure 4.14) to add an announcement to the top of the user console:
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A message may include HTML tags to control the displayed format, and will wrap if the message exceeds the width of the screen. Enter a message and click the Display Message button to display the banner across the top of each connected user's console (as shown in Figure 4.15)
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Click the Remove Message button to remove the banner. Please note that the wall banner is stored in the console database, and will persist after a server restart; you must use the Remove Message button to remove a banner.
Use the Download button in the Download Console Logs panel of the Admin tab to download a zip file that contains the server logs for the underlying application server. You can confirm changes to server status or verify server activity by reviewing the application server log file.
When the server.log file fills, EDB Ark attaches a unique identifier to the file name, and rotates the file into storage.
You can use the Linux tail utility (shown in Figure 4.16) to display the most recent entries in any of the server logs. For example, to review the last 10 lines in the server log file, connect to the console host with ssh and enter:
tail file_name
Where file_name specifies the complete path to the log file.
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You can include the -F option to instruct the tail utility to display the last 10 lines of the log file, and new log file entries as they are added to the file:
tail -F file_name
The tail utility will continue to display new log file entries if the server log rotates to a new file. Enter Ctrl-C to exit tail and return to the command prompt.
To review the tail command options, enter the command:


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