Categories
Uncategorized

How to setup icinga2 master-satellite-client using director module

Icinga2 documentation clearly describes the master->satellite->client setup, but as of now everything can be configured using director module and top down approach, so you can easily monitor external remote networks that are not accessible from the master server.

Categories
SysOps

How to parse free output to display available memory

The free utility is used to display the amount of free and used memory in the system. Debian Stretch provides an upgraded package. Output format has changed, and available memory is calculated using a different method, so let’s see what we can do with these modifications at this moment.

Categories
Uncategorized

How to add your first host using icinga2 director

Add your first host using icinga2 director after performing clean installation as I have described earlier this month – icinga2 plus icingaweb2 and director module installation procedure.

Categories
Uncategorized

How to install director module for icingaweb2

Icinga is a great monitoring solution, especially when you use director module to perform configuration in top down environment. It makes application more accessible to more people as you can use web-interface and role based permissions to allow developers and testers to write and use their own checks and notifications.

Categories
SysOps

How to install icinga2 and icingaweb2

Install Icinga 2 monitoring instance with web-interface.

Categories
SysOps

How to perform real-time performance monitoring

If you have ever wondered how to perform real-time performance monitoring on a number of virtual hosts scattered across multiple locations, then install and use netdata application.

Categories
WebOps

How to add menu to AWStats web-interface

I have described a simple way to configure the AWStats web-interface last month,
so I will continue this topic further and tell you how to add a menu to quickly switch between configured sites.

Categories
SysOps

How to configure AWStats web-interface

I will show you how to configure the AWStats web-interface using the uWSGI application server and Nginx HTTP server, which is a very simple and straightforward process.

Categories
SysOps

How to parse and process Linux Software RAID events

It is an interesting thing to know how to parse and process Linux Software RAID events.
It is also beneficial as you can automatically take appropriate action immediately after a certain event occurs.

Categories
Uncategorized

How to add new device to hddtemp database

Recently described hddtemp application does not contain every possible hard drive in its database. I’ll be honest here, its development stopped many years ago, but it is still very useful, so I will shortly describe how to add new hard drive to the database.