In order to have Nagios process external commands, make sure you do the following: Enable external command checking with the check_external_commands option. Specify the location of the command file with the command_file option.
How to monitor a Nagios server via SSH?
Now on the Nagios monitoring page, we will have the client information. To use the SSH Proxy wizard, we navigate via the top menu bar to Configure > Run a configuring wizard and select the SSH Proxy wizard. Step 1: We have to provide the address of the server we will monitor via SSH.
How do I have Nagios process external commands?
In order to have Nagios process external commands, make sure you do the following: Enable external command checking with the check_external_commands option. Set the frequency of command checks with the command_check_interval option.
How do I use check_by_SSH with Nagios XI?
For check_by_ssh to work, we must copy the public key file of the Nagios user on the Nagios XI server to the authorized_keys file for the Nagios user on the remote Linux/Unix server. Here, the remoteip is the IP address of the Linux/Unix server we connect to.
How does the Nagios web interface work?
The Nagios Web interface uses an external command pipe to control how Nagios works. The Web interface does not use any other means to send commands or apply changes to Nagios. From the Nagios daemon perspective, there is no clear distinction as to who can perform what operations.
How does Nagios process external commands given to it using SSH?
Nagios can process commands from external applications (including the CGIs) and alter various aspects of its monitoring functions based on the commands it receives. External applications can submit commands by writing to the command file, which is periodically processed by the Nagios daemon.
What are the external commands in Nagios?
External commands can be used to accomplish a variety of things while Nagios is running. Example of what can be done include temporarily disabling notifications for services and hosts, temporarily disabling service checks, forcing immediate service checks, adding comments to hosts and services, etc.
What is the difference between active and passive check in Nagios?
The major difference between active and passive checks is that active checks are initiated and performed by Nagios, while passive checks are performed by external applications.
How do I add commands in Nagios?
Creating a new command. Select Configuration > Nagios Monitoring > Commands, then select New. You also have the option to Copy, Search, and Modify existing commands. In the Select Resource screen, check the resource macro to configure.
Where are Nagios commands located?
You can define the commands in the file /usr/local/nagios/etc/objects/commands.
Which of the following is not an external command?
Q.Which is not an external command?B.xcopyC.sysD.none of the aboveAnswer» d. none of the above1 more row
Is Nagios push or pull?
Nagios uses agents that are installed on both the network elements and the components that it monitors; they collect data using pull methodology.
How does Nagios check host status?
Nagios can detect when hosts start flapping, and can suppress notifications until flapping stops and the host's state stabilizes.
What is the protocol used to send passive checks in Nagios?
In order to allow remote hosts to send passive check results to the monitoring host, you can use either the NSCA or NRDP addon. The NSCA addon consists of a daemon that runs on the Nagios Core hosts and a client that is executed from remote hosts.
How do you define a command in Nagios?
Command definitions for Nagios are defined in commands. cfg file. Command name − This directive is used to identify the command. The definitions of contact, host, and service is referenced by command name.
What is event handler in Nagios?
Event handlers are optional system commands (scripts or executables) that are run whenever a host or service state change occurs. An obvious use for event handlers is the ability for Nagios to proactively fix problems before anyone is notified. Some other uses for event handlers include: Restarting a failed service.
What is hard and soft state in Nagios?
There are two state types in Nagios Core - SOFT states and HARD states. These state types are a crucial part of the monitoring logic, as they are used to determine when event handlers are executed and when notifications are initially sent out.
What can be done with external commands?
Example of what can be done include temporarily disabling notifications for services and hosts, temporarily disabling service checks, forcing immediate service checks, adding comments to hosts and services, etc.
Can Nagios process CGIs?
Introduction. Nagios can process commands from external applications (including the CGIs) and alter various aspects of its monitoring functions based on the commands it receives. External applications can submit commands by writing to the command file, which is periodically processed by the Nagios daemon.
What can be done with external commands?
Example of what can be done include temporarily disabling notifications for services and hosts, temporarily disabling service checks, forcing immediate service checks, adding comments to hosts and services, etc.
Can Nagios process CGI?
Nagios can process commands from external applications (including CGIs - see the command CGI for an example) and alter various aspects of its monitoring functions based on the commands it receives.