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  1. Nagios XI - Last Check Time Not Updating Summary There are many causes for this error. Most often it is due to a connection issue to the backend historical database, crashed database tables, core scheduling/check execution issues, or lack of resources (causing orphaned checks).     Editin... Read More
  2. Nagios Log Server - Overview And Terminology High Level Overview 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 ... Read More
  3. SNMP Trap - snmptrapd Service snmptrapd Service The snmptrapd service is what receives an SNMP Trap from the networking stack and then places it into a spool directory for the snmptt service to process. These steps help confirm that the snmptrapd service is working correctly. Bef... Read More
  4. Nagios Log Server - Full Architecture Overview High-Level Overview Nagios Log Server is an application that provides organizations a central location to send their machine generated event data (e.g., Windows Event Logs, Linux syslogs, mail server logs, web server logs, application logs) which w... Read More
  5. How To Monitor A System Using SSH Sometimes you need to monitor a system that doesn’t have an agent or accessible SNMP stack. If the host has a secure shell (SSH) server you may be able to use SSH to monitor the system.  The following Video Guide and Documentation covers the ... Read More