What types of logs can be monitored with Nagios?
Nagios is capable of monitoring system logs, application logs, log files, and syslog data, and alerting you when a log pattern is detected. Implementing effective log monitoring with Nagios offers the following benefits:
What is the use of Nagios?
Nagios provides complete monitoring and log management of application logs, log files, event logs, service logs, and system logs on Windows servers, Linux servers, and Unix servers.
How does Nagios submit the result of reports to a machine?
In such an environment, Nagios submit the result of reports of tasks to a single machine. All configuration, reporting, and notification can be managed at the master machine and here slaves do all the work. Here Nagios uses passive checks that are basically external applications that can send the results back to Nagios.
What is continuous monitoring in Nagios?
Continuous monitoring is one of the stages in this lifecycle. In this chapter, let us learn in detail about what continuous monitoring is and how Nagios is helpful for this purpose. Continuous monitoring starts when the deployment is done on the production servers. From then on, this stage is responsible to monitor everything happening.
See more
What is Nagios log?
Nagios Log Server is a powerful enterprise-class log monitoring and management application that allows organizations to quickly and easily view, sort, and configure logs from any source on any given network.
Where are Nagios logs?
The log file is usually located at /usr/local/nagios/var/nagios. log or /var/log/nagios3/nagios. log.
How do I monitor logs using Nagios?
If you can read the log file with a bash (or perl or python or etc.) script and search for the string (grep), sure. The script needs to set a non-zero return code and return the string. The script can reside on the server in question, and nagios can use the check_by_ssh command to run the script on the server.
How does Nagios Log Server work?
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.
How do I start a Nagios log server?
Type the username and password required to login to Nagios Log Server and then click the Log In button to begin. You will be logged into Nagios Log Server and be placed at the home screen. Nagios Log Server will now be installed on your system, ready to start collecting logs.
Is Nagios log server free?
Nagios Log Server's enterprise-level monitoring and management solutions are now available for FREE indefinitely with a 500mb/day limit based on a 7-day rolling average!
What is log file monitoring?
Log files of systems and applications contain invaluable information such as operation status & results, errors, and much more. Monitoring the log files helps IT administrators to know the performance of the systems and mission critical applications such as Oracle, SAP, ERP, IIS, etc. in real-time.
How do I monitor a log file in zabbix?
Zabbix Agent Configuration Required First, the Zabbix agent installed on the Linux computer must be configured in Active mode. Next, you need to check the log file permissions. In our example, we are going to monitor the syslog file. List the log file permisions using the LS command.
What is Nagios configuration file?
By default, the CGI configuration file of Nagios is named cgi. cfg. It tells the CGIs where to find the main configuration file. The CGIs will read the main and host config files for any other data they might need. It contains all the user and group information and their rights and permissions.
What is log management tool?
A Log Management System (LMS) is a software solution that gathers, sorts and stores log data and event logs from a variety of sources in one centralized location.
What is a log server?
A log server is a log file automatically created and maintained by a server consisting of a list of activities it performed. It maintains a huge server requests.
What is central logging?
Centralized Log Management (CLM) is a type of logging solution system that consolidates all of your log data and pushes it to one central, accessible, and easy-to-use interface. Centralized logging is designed to make your life easier.
How long does it take to index logs in Nagios?
Once log data has been indexed (indexing usually happens within 5 seconds from arrival) it can be easily analyzed using the graphical query and filtering tools on the dashboard and have quick search functionality to search any log event item on Google, Bing, and Stack Overflow. Additionally, alerts can be created based on the query used in the dashboard, and send to Nagios XI or Nagios Core via NRDP, start a Nagios Reactor event chain, sent as a SNMP Trap, or even start a custom script.
What is a Nagios server?
Nagios Log Server is an application that provides organizations a central location to send their machine generated data, (e.g., Windows Eventlogs, Linux syslogs, mail server logs, web server logs, application logs, etc.), which will index the content of the messages, and store the data for later retrieval or querying and analysis in near real-time.
What is Logstash used for?
Logstash – Package used to receive and pre-process log messages before sending to Elasticsearch for indexing. Logstash has dozens of possible Inputs and Filters that can be added through the Configure menu to enable additional capabilities.
What is an instance in Nagios?
Instance - A single Nagios Log Server installation. All Instances become part of a single Nagios Log Server Cluster .
Can Nagios log server be archived?
Finally, the data that is sent to Nagios Log Server can be automatically archived to a shared network drive. The archived data can be restored and re-analyzed at any point in the future.
Can you send debug logs to Nagios?
Developers can send debug logs to Nagios Log Server, and easily filter out the information that isn't important leaving just the key items of interest.
Can you archive Nagios results?
With a small script, users could archive Nagios Check Results including performance data , and have the ability to setup custom dashboards visualizing the data however they wish (table, bar graph, pie chart, etc..)
