All network devices send their logs to the ArcSight logger as Syslog. Logs may include power failure, link failure, multiple failed login attempts, successful user login failure, and more. Security logs are stored in ArcSight's database for up to 90 days (this can be varied depending on the environment). Examples of security logs include authentication and authorization failures, incorrect logins, and wrong passwords; non-security logs such as link and device failure, module failure, STP logs, and unicast/multicast storm problems. These are some of the primary uses of the ArcSight Logger.
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