Redux – Core Concepts
Let us assume our application’s state is described by a plain object called initialState which is as follows − const initialState = { isLoading: false, items: [], hasError: false }; Every piece…
Redux – Installation
Before installing Redux, we have to install Nodejs and NPM. Below are the instructions that will help you install it. You can skip these steps if you already have Nodejs and…
Redux
Redux is a predictable state container for JavaScript apps. As the application grows, it becomes difficult to keep it organized and maintain data flow. Redux solves this problem by managing…
Nagios – Case Study
In this chapter, let us look into case studies of two organizations that have successfully implemented Nagios. Bitnetix with Nagios Bitnetix in an IT consulting organization which is into networking,…
Nagios – V Shell
V-Shell is a lightweight web interface to Nagios Core written in PHP. It is easy to install and use and it is an alternative to Nagios output. The frontend of…
Nagios – NRPE
The Nagios daemon runs checks on remote machines in NRPE (Nagios Remote Plugin Executor). It allows you to run Nagios plugins on other machines remotely. You can monitor remote machine…
Nagios – Add-ons/Plugins
Plugins help to monitor databases, operating systems, applications, network equipment, protocols with Nagios. Plugins are compiled executables or script (Perl or non-Perl) that extends Nagios functionality to monitor servers and…
Nagios – Ports and Protocols
This chapter gives an idea of the ports and protocols that Nagios comprises. Protocols The default protocols used by Nagios are as given under − http(s), ports 80 and 443…
Nagios – Checks and States
Once the host and services are configured on Nagios, checks are used to see if the hosts and services are working as they are supposed to or not. Let us…
Nagios – Commands
A command definition defines a command. Commands include service checks, service notifications, service event handlers, host checks, host notifications, and host event handlers. Command definitions for Nagios are defined in…
- Go to the previous page
- 1
- …
- 18
- 19
- 20
- 21
- 22
- 23
- 24
- …
- 183
- Go to the next page