Company Profile
Headquartered in New Delhi, Tetra is a leading Linux and Open Source consulting, outsourcing and solutions provider. Tetra lives to the mission of being a one stop source for all Open Source needs.
Business Needs
A global leader in audio equipment required a robust monitoring solution to support its large-scale infrastructure spanning three continents: the USA, Europe, and Asia.
- Implement, streamline, and enhance Nagios XI, NNA, and NLS platforms.
- Develop custom plugins for advanced monitoring.
- Automate routine processes like AWS instance deployment.
- Provide a secure and scalable environment.
- Build comprehensive dashboards and SOPs for seamless operations.
The Challenge
Tetra undertook a comprehensive overhaul of the client’s IT environment, delivering streamlined processes, automation, plugin enhancements, and robust monitoring capabilities. Tasked with managing over 10,000 devices, Tetra relied on Nagios XI, Nagios Network Analyzer (NNA), and Nagios Log Server (NLS) to monitor the client’s complex IT ecosystem.
Some of the challenges Tetra faced were:
- High Volume of False Alerts: Inefficient configurations led to numerous false and unknown alerts, hindering operational efficiency.
- Lack of Advanced Monitoring: Existing plugins could not cater to advanced monitoring needs such as kernel-level metrics, CRC errors, and AWS-specific data.
- Complex Infrastructure Changes: Frequent changes to infrastructure caused gaps in monitoring dashboards and missing hosts/services.
- Global Distributed Architecture: Managing a distributed Nagios setup across three data centers with various device types added complexity.
- Restricted Access Monitoring: Monitoring secured servers behind firewalls, like CDE servers, posed technical and procedural challenges.
Why Nagios?
With the implementation of Nagios’ solutions, the following results were achieved:
- Improved Monitoring Accuracy: Reduced false and unknown alerts by 80%, enhancing system reliability.
- Advanced Monitoring: Enabled proactive detection of critical issues through new plugins and integrations.
- Automation and Efficiency: Streamlined AWS instance deployment and operational workflows, saving valuable time.
- Enhanced Insights: Comprehensive dashboards provided real-time data and actionable intelligence.
- Global Cohesion: Unified monitoring across all data centers ensured consistency and operational transparency.
The Impact of Nagios
Tetra provided their client with key solutions:
- Streamlined Existing Platforms
- Advanced Monitoring Capabilities: Tetra developed plugins for:
- Network Monitoring: CRC/input errors, fan/power supply status, BGP link and neighbor statuses, OSPF link monitoring, and VPN tunnels.
- Windows Monitoring: RAID alarms, cluster services, LDAP and DNS response checks, and critical event detection for Windows servers.
- AWS Monitoring: ELB services, HTTP status codes, disk operations, auto-scaling group sizes, and EC2 performance metrics.
- Automation and Processes
- Automated AWS instance deployment for streamlined resource management.
- Created SOPs for infrastructure changes, troubleshooting, and onboarding new devices.
- Documented processes to empower client teams to manage ongoing enhancements independently.
- Customized Dashboards and BPI Integration
- Built traditional dashboards for the client OCC team and BPI-enabled dashboards for management insights.
- Introduced parent-child device relationships for enhanced correlation of alerts and events.
- Designed secure, hardened environments for dashboards and reports.
- Integration with External Tools
- Enabled seamless integration with the Cherwell ticketing tool for automated incident reporting.
- Incorporated database and application monitoring based on data availability.
The Bottom Line
Tetra’s Nagios overhaul for this client is a testament to the transformative power of tailored IT solutions. By addressing inefficiencies, enabling advanced monitoring, and providing scalable automation, Tetra delivered a robust and future-ready monitoring ecosystem for the client’s global operations.
Partner with Tetra to redefine your IT monitoring strategy with Nagios. Let us help you achieve seamless, proactive, and efficient infrastructure management.

