Log messages must usually be interpreted with respect to the internal state of its source (e.g., application) and announce security-relevant or operations-relevant events (e.g., a user login, or a systems error). Logs may be directed to files and stored on disk, or directed as a network stream to a log collector. A stream of messages in time-sequence often comprise a log. Logs are emitted by network devices, operating systems, applications and all manner of intelligent or programmable device. Forensics (during investigations or in response to subpoena).Typical reasons why people perform log analysis are: The process of creating such records is called data logging. In computer log management and intelligence, log analysis (or system and network log analysis) is an art and science seeking to make sense out of computer-generated records (also called log or audit trail records). JSTOR ( July 2009) ( Learn how and when to remove this template message).Unsourced material may be challenged and removed. Please help improve this article by adding citations to reliable sources. This article needs additional citations for verification.
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