Search Exchange

Search All Sites

Nagios Live Webinars

Let our experts show you how Nagios can help your organization.

Contact Us

Phone: 1-888-NAGIOS-1


Remember Me

Check UNIX Open FDs

Current Version
Compatible With
  • Nagios 3.x

Help Support Ethan Galstad's New Project:

Help Support Ethan

A Message From The Founder...

As the founder of Nagios, I'm asking for your help in a cause that's dear to my heart.

I'm launching a new project to help better the world by providing the information, ideas, and inspiration that I believe can improve the lives of people everywhere.

I know you're busy managing networks, but I would appreciate it if you would consider liking my Facebook page and showing your support for the content and messages I produce by sharing them with your friends and family.

You can learn more about my project by visiting Thank you for your time. I wish you all the best in your endeavors, whatever they may be.

- Ethan

Check UNIX Open FDs
Checks the number of open files by process and program.
This plugin checks the number of file descriptors (fds) opened by one program o by any instance (process) of a program. Monitoring the number of open files allows avoiding errors as "Too many open files" in UNIX-like systems.

Check is performed for a given program and allows stating thresholds based on the sum of all descriptors of the instances (processes) of the program or based on the max number of file descriptors opened by a process.

Plugin is Nagios 3.x (ePN) compatible and returns the sum of file descriptors opened by the program and the max number of file descriptors opened by a process as performance data.

NOTE: In order to work, this plugin depends on the lsof command to be executed with root privileges. As Nagios executes scripts with nagios user privileges, SUID bit must be SET on lsof command. Check README file for related information.
Reviews (1)
bytwhitney11, May 22, 2017
No link