Nagios Log Server: Centralized Log Management & Server Log Analysis

Nagios Log Server provides real-time log analysis, custom dashboards, and high-performance storage with perpetual licensing and no per-GB fees.

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Setup in 30 minutes

Hybrid deployment options

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Trusted by Thousands of IT Teams Worldwide

Nagios Log Server Features

Real-Time Log Monitoring and Syslog Server Management

Log Collection & Intelligence

Centralized Log Management, Built For Scale

Aggregate every source. Syslog, Windows Event Logs, flat files, and application logs from servers, network devices, and cloud platforms in one repository.

Search in plain English. The AI Query Assistant turns natural-language prompts into Lucene queries, so anyone can search logs.

Process logs in real time. OpenSearch-based indexing surfaces threats and performance issues as events arrive.

Speak every protocol. Native support for syslog (TCP/UDP/TLS), JSON, and custom formats with extensible parsing.

Skip the parser-writing. Built-in parsers handle common formats, with custom field extraction when you need it.

Keep history searchable. Configurable retention, compression, and automatic archiving for compliance and forensics.

Visualization & Alerting

Turn Log Noise Into Actionable Insight

Build dashboards for every team. Role-based views with dashlets, charts, and live log streams.

Alert on what matters. Trigger on log patterns, error conditions, or thresholds, with automated escalation.

Start with templates. Default dashboards and a community library get you running on day one.

Route notifications anywhere. Email, SNMP traps, or Nagios XI for SMS and third-party integrations.

Correlate across sources. Build queries that join data from different systems to surface threats early.

Feed metrics into Nagios XI. Turn log data into passive checks for capacity planning and SLA tracking.

Compliance & Security

Built To Support Your Compliance Program

Centralized logging is the backbone of nearly every compliance framework. Log Server gives you the controls, retention, and evidence trail to support your program.

Prove compliance with every framework. Scheduled, exportable reports for PCI DSS, HIPAA, SOX, GDPR, and FISMA audits.

Meet log retention mandates. Configurable retention and automatic archiving keep historical logs intact as long as regulators require.

Produce audit-ready evidence on demand. Forensic search, field extraction, and timeline reconstruction answer auditor questions fast.

Enforce least-privilege access. Role-based, multi-tenant permissions control who can view, search, or export each log source.

Protect log integrity in transit. TLS-encrypted syslog satisfies data-in-motion controls under PCI DSS and HIPAA.

Maintain a complete chain of custody. Every user action, config change, and export is logged for a defensible audit trail.

See Nagios Log Server in Action

Schedule a personalized demo and discover how Nagios Log Server can transform your infrastructure monitoring.

No credit card required

Setup in 30 minutes

Hybrid deployment options

“In regard to log based alerts, using NLS provides great advantages generally for our users, especially using the several different type of options for alert thresholds. The default query for failed user logins enables us to detect network intrusions, which is extremely useful.”

Henrik Normann-Hansen – Sys Admin

Nagios Log Server Pricing

Perpetual License Pricing

One-time licensing with no per-GB fees, plus optional annual Maintenance & Support Plans for continued updates and support.

Stand-Alone

Find the right plan for you with our Log Server Plan Calculator

Nagios does not recommend single-instance Log Server deployments, but we do offer them to those who understand the trade-off. Single-Instance deployments do not offer redundancy or failover in the event of system failures due to the nature of Log Server’s shard-and-cluster process.

Centralized log management
Fast query speeds
No Redundancy
Simple Setup Wizards
Built-in alerting System
Unlimited retention *
No failover
Unlimited users *
Advanced queries and filtering
Automatic snapshot and backup systems
Centralized configuration
Nagios XI integration

License Levels

Price

Single-Instance

$5,195

Mid-Scale

Find the right plan for you with our Log Server Plan Calculator

Ideal for monitoring moderate amounts of log data with redundancy and failover.

Centralized log management
Additional query speeds
Redundant storage
Simple Setup Wizards
Built-in alerting System
Unlimited retention *
Automatic failover
Unlimited users *
Advanced queries and filtering
Automatic snapshot and backup systems
Centralized configuration
Nagios XI integration

License Levels

Price

3-Instance

$6,195

4-Instance

$8,295

Large-Scale

Find the right plan for you with our Log Server Plan Calculator

For monitoring substantial quantities of log data with built-in redundancy and failover.

Centralized log management
Maximum query speeds *
Maximum redundancy
Simple Setup Wizards
Built-in alerting System
Unlimited retention *
Automatic failover
Unlimited users *
Advanced queries and filtering
Automatic snapshot and backup systems
Centralized configuration
Nagios XI integration

License Levels

Price

10-Instance

$15,495

20-Instance

$25,795

Over 20-Instance

*Any limitations depend on your hardware capabilities. There are no arbitrary limitations placed by our software. We believe that your data is yours to control.

System Requirements

Hardware Specifications

Minimum system requirements for optimal performance

Hardware

Hard Drive

RAM

Processor

Architecture

Minimum

1+ TB

8+ GB

8+ cores

64-bit

Note: Requirements may vary based on your log volume, retention period, and query complexity. For high-volume deployments, consider exceeding the minimum specifications.

Linux

RHEL 8, 9 · Oracle Linux 8, 9 · CentOS Stream 9 · Debian 11, 12 · Ubuntu 20.04 LTS · Ubuntu 22.04 LTS · Ubuntu 24.04 LTS

Note: RHEL/Oracle Linux requires the Optional software channel and CodeReady Builder (RHEL 8/9) to be enabled. See RHEL setup guide for details.

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