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How administrators gather information from log files depends on how the logs are configured. Under a standard configuration, every server logs to its own local /var/log directory, and the administrator will have a hard time figuring out what is happening where.
For smart log management in Linux, administrators should configure
Open source alternatives
Logcheck scans system logs for specific information an administrator wants
Admins looking for a complete system with a web-based monitoring option should also consider Graylog2. It enables administrators to collect, index and analyze log data that comes from any source and presents the results in a dashboard where it's easy to see what is happening where.
Dig Deeper on Data center ops, monitoring and management
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