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For each successful authentication, the system writes a cookie to the RAM disk of the CNA system. The cookie remains for 1 week.
During that time, the browser session remains authenticated, and you can start and end CNA sessions without logging in each time as long as the browser remains open. If you close the browser and the associated Java session, you must enter the user ID and the password again and the system writes a new cookie to the RAM disk.
The CNA RAM disk can contain 350 persistent user-session cookies at any one time.
You can use the show users command to view the number of user sessions that are currently active. One cookie exists for each Web Login that is listed. The time stamp in the output of the show users command shows the last time that the user who is represented by that cookie interacted with the CNA system. Time stamps for CLI users in the output of the show user command shows the time the user logged on to the CNA system.
In the event that session limit is exceeded, the log-in window contains an error message that tells you that the maximum number of cookies, or concurrent sessions, was reached. The following message is also written to the system log:
Cannot add to cookie index - reached maximum entries
If you ignore the maximum-user warning and log on, you can navigate through the application. However, when you click an element that requires interaction with the CNA system, another log-on message will appear.
When you reach the cookie limit, do not attempt further application logins until the oldest cookie times out. Use the CLI instead. No limit exists to the number of CLI sessions allowed.
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