Graylog is a tool that helps organizations keep track of what's happening in their computer systems and networks. Think of it as a digital diary that automatically records important events, errors, and activities across all company computers and applications. Instead of manually checking multiple systems, IT teams can use Graylog to collect all these records in one place, making it easier to spot and fix problems quickly. It's similar to other tools like Splunk or ELK Stack, but many companies choose Graylog because it's both powerful and cost-effective.
Implemented Graylog to monitor system activities across 200+ servers
Reduced incident response time by 60% using Graylog for log management
Set up Graylog alerts and dashboards for security monitoring
Typical job title: "System Administrators"
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Q: How would you design a Graylog implementation for a large enterprise?
Expected Answer: A senior should discuss scaling considerations, data retention policies, backup strategies, and how to structure the system to handle high volumes of logs while maintaining performance.
Q: How would you use Graylog to improve security monitoring?
Expected Answer: Should explain setting up alerts for suspicious activities, creating security dashboards, integrating with security tools, and establishing incident response procedures.
Q: How do you create effective alerts in Graylog?
Expected Answer: Should explain how to set up meaningful alerts that avoid false positives, understand different alert conditions, and know how to route alerts to appropriate teams.
Q: Explain how you would troubleshoot system issues using Graylog.
Expected Answer: Should describe how to search logs effectively, create useful dashboards, and correlate events from different sources to identify root causes.
Q: What basic information can Graylog collect?
Expected Answer: Should be able to explain basic log types like application errors, system events, and security logs, and how to view them in Graylog.
Q: How do you use Graylog's search feature?
Expected Answer: Should demonstrate understanding of basic search syntax, how to filter results, and how to save searches for future use.