Nagios Log Server

Centralized Log Management, Monitoring and Analysis Software

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Ease of Use

Nagios Log Server greatly simplifies the process of searching your log data. Set up alerts to notify you when potential threats arise, or simply query your log data to quickly audit any system. With Nagios Log Server, you get all of your log data in one location, with high availability and fail-over built right in. Quickly configure your servers to send all log data with easy source setup wizards and start monitoring your logs in minutes.

Infinite Scalability

Nagios Log Server can scale to meet the needs of your entire IT infrastructure, so as your organization grows you can easily add additional Nagios Log Server instances to your monitoring cluster. This allows you to quickly add more power, speed, storage, and reliability to your overall log analysis platform. Nagios Log Server is designed for organizations of any size and can adapt with the click of a button.

Your Data in Real Time

Easily correlate log events across all servers in a few clicks. Nagios Log Server allows you to view log data in real-time, providing the ability to quickly analyze and solve problems as they occur. This keeps your organization safe, secure, and running smoothly.


Nagios Log Server has a fully accessible API allowing for complete integration to fit the needs of your external applications. Nagios Log Server easily integrates with third-party solutions or your current infrastructure.

Network Security

Nagios Log Server is a premier solution that’s perfectly designed for security and network auditing. Easily create alerts from the web-interface based on queries and thresholds most important to you. Notify users via Nagios XI / Nagios Core, email, SNMP traps, or execute a script to ensure quick problem resolution. Nagios Log Server lets you dive into the issue to help you find a solution. Additionally, Nagios Log Server can keep historical archives of all events should a security audit be needed, keeping your organization in compliance with security requirements.

Advanced User Management

Multi-user capabilities allow IT teams to work together efficiently. Admins can add, modify, and remove users, as well as set access permissions. Admins can also grant specified users access to the external API via an access key.

Customized Dashboards

A powerful GUI provides for customization of layout, design, and preferences on a per-user basis, giving your customers and team members the flexibility they want. Users can create custom dashboards in the web-interface to see quick views of data most important to them. Users can also easily share dashboards with a custom URL to enhance team collaboration.

Network Insights

Nagios Log Server provides users with advanced awareness of their infrastructure. Dive deep into network events, logs, and security events. Use Log Server to provide the evidence necessary to track down security threats, and quickly resolve vulnerabilities with built-in alerts and notifications.

Pricing Plans

Single Instance
  • Intended for small or test deployments that do not require redundancy
  • Centralized Log management & configuration
  • Advanced queries & filtering
  • Built-in alert system
  • Unlimited users
  • Simple setup wizards
  • Automatic snapshot & backup system
  • Unlimited retention
  • Data volume only limited by hardware
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  • Intended for production deployments that don't require our highest grade of redundancy (available with 4+ instances)
  • Redundant data (stored across both instances)
  • Automatic failover
  • Alert system failover
  • Increased query speed (up to 2x)
  • Manage all instances from a single GUI
  • Apply configuration changes to all instances from a single GUI
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  • Intended for medium datasets
  • All features of 2-Instance, plus:
  • Additional query speed
  • Increased redundancy & resiliency
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  • Intended for large datasets
  • All features of 2-Instance, plus:
  • Additional query speed
  • Increased redundancy & resiliency
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  • Intended for very large datasets that require reliable and foolproof storage.
  • All features of 4-Instance, plus:
  • Maximum redundancy
  • Maximum indexing speed*
  • Maximum query speed*
  • Want more? View the 20-Instance
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Frequently Asked Questions

Nagios Log Server is licensed based on the number of cluster Instances you implement in your environment. A Nagios Log Server system is comprised of any number of cluster server Instances. Each Instance communicates with other instances to both replicate/backup your data as well as load-balance your system to maintain an efficient log monitoring system.

Nagios Log Server is supported by our team of professionals. Forum and email support are included in the base license price for Nagios Log Server. Optional phone support contracts are available to customers who require additional support services.

No! Nagios Log Server, unlike many of our competitors, allows you to have full access to all of your log data no matter what your license level. We don’t believe in charging you for your own data. We don’t think it’s fair. Your only limitation is the hardware/VM that you put Log Server on, but with Log Server’s ability to quickly scale to your environment, your monitoring needs are always met.

Yes! Manual installation of physical servers is recommended. The server must be RHEL or CentOS. We also distribute Nagios XI as a virtual machine to allow you get it up and running quickly.

Nagios Log Server systems are based on a clustering model. Each server in the cluster is called an Instance. Adding an Instance to your Log Server cluster allows you to balance server load, create a redundant copy of log event data, and scale Log Server to meet your environment’s needs. Keep your data highly available and redundant with additional Nagios Log Server Instances. Each instance in the cluster shares in the workload of indexing and querying your data. A minimum of 2 instances is recommended to provide redundancy and resiliency.

Yes! Nagios started in the open source community and we hold strong to our roots. Nagios Log Server is free to use for up to 500MB of log data per day. This makes it easy to monitor small environments or to try it in your environment before you buy it!

Right out-of-the-box, Nagios Log Server is configured to be able to receive Windows Event Logs, Linux syslogs, and Network Device Syslogs as well as log information from any Windows and Linux machine. Additional log types can be added through the easy GUI configuration wizard. Basically, if there’s a log you want to monitor, Nagios Log Server can receive it for further analysis.

Log Server utilizes the open source tools called Elasticsearch as well as Logstash for the cluster formation/storage and log data collection system respectively.

The initial purchase of any of our commercial solutions includes the first year of support and maintenance benefits. Support & Maintenance benefits enable customers to receive access to version upgrades for one year, plus, direct ticket support (up to ten incidents), and access to the customer-only support forum.

Other Questions

Have other questions related to Nagios Log Server? Feel free to contact us and we’ll get you the answers.

“Nagios is an integral part of our infrastructure. By notifying us immediately of a service outage, we were able to rectify the issue before our customers and end users experienced any problems.”

-Jared Bird, Network Security Admin
Sunrise Community Banks

“The ease of administration and great price drove us to Nagios. Paying a little for XI was well worth it; it has paid for itself time and time again in saved time and better service delivery.”

– Jason Moldan
System Administrator
University of St. Thomas


“Sysadmin and development staff actually slept through the night. Nagios fixed problems as they arose, and uptime from the site as an aggregate increased from ~85% to over 98% annually.”

-Eric Loyd

Nagios is trusted by these companies and thousands more: