---
name: "nagios3"
section: "8"
platform: "linux"
package: "nagios3-core"
version: "3.5.1.dfsg-2+b1"
release: "Debian 8 (Jessie)"
platforms: ["linux"]
url: "https://new.carta.tech/nagios3"
---

# nagios3(8)

network/systems status monitoring daemon

## NAME

nagios3 - network/systems status monitoring daemon

## SYNOPSIS

**nagios3 \[-h\] \[-v\] \[-s\] \[-d\] \<main\_config\_file\>**\

## DESCRIPTION

**nagios3** is a daemon program that monitors the status of various network accessible systems, devices, and more.  For more information, please consult the online documentation available at http://www.nagios.org, or on your nagios server's web page.

## OPTIONS

- main\_config\_file

  The main configuration file.  On debian systems this defaults to /etc/nagios3/nagios.cfg

- **-h**

  A helpful usage message

- **-v**

  Reads all data in the configuration files and performs a basic verification/sanity check.  Always make sure you verify your config data before (re)starting Nagios.

- **-s**

  Shows projected/recommended check scheduling information based on the current data in the configuration files.

- **-d**

  Starts Nagios in daemon mode (instead of as a foreground process).

## FILES

- Default configuration directory for nagios3

  - /etc/nagios3

  ## AUTHOR

nagios3 is written and maintained by Ethan Galstad \<nagios@nagios.org\>.  This manual page was written by sean finney \<seanius@debian.org\> for the Debian GNU/Linux operating system (but it may be freely used, modified, and redistributed by others).