-
Published Tutorial
In this tutorial, you will use Let's Encrypt to obtain a free SSL certificate and use it with Nginx on CentOS 8. You will do this by using the Certbot Let's Encrypt client. You will also set up automatic renewal of yo...
•
By
Vadym Kalsin
Nginx
Let's Encrypt
CentOS 8
-
Published Tutorial
Zabbix is open-source monitoring software for networks and applications. In this tutorial, you will configure a Zabbix-based monitoring system on two Ubuntu 20.04 machines. One will be configured as the server, and th...
•
By
Vadym Kalsin
Ubuntu 20.04
MySQL
Nginx
Monitoring
Open Source
-
Published Tutorial
TimescaleDB is an open-source database optimized for storing time-series data. It is implemented as an extension of PostgreSQL and combines the ease-of-use of relational databases and the speed of NoSQL databases. By ...
•
By
Vadym Kalsin
PostgreSQL
Databases
Open Source
-
Published Tutorial
Grafana is an open-source data visualization and monitoring tool that integrates with complex data sources like Prometheus and ElasticSearch. Grafana lets you create alerts, notifications, and ad-hoc filters for your ...
•
By
Vadym Kalsin
Monitoring
Open Source
Data Analysis
Ubuntu 20.04
-
Published Tutorial
Nagios is a popular open-source monitoring system. It keeps an inventory of your servers and monitors them so you know your critical services are up and running. Using a monitoring system like Nagios is an essential t...
•
By
Vadym Kalsin
Monitoring
Apache
PHP
Ubuntu 18.04
-
Published Tutorial
PostgreSQL, or Postgres, is a relational database management system that provides an implementation of the SQL querying language. It is a popular choice for many small and large projects and has the advantage of bein...
•
By
Vadym Kalsin, Mark Drake
PostgreSQL
Databases
CentOS 8
-
Published Tutorial
SNMP stands for simple network management protocol. It is a way that servers can share information about their current state, and also a channel through which an administer can modify pre-defined values. In this guide...
•
By
Justin Ellingwood, Vadym Kalsin
Ubuntu 18.04
Networking
System Tools
-
Published Tutorial
TimescaleDB is an open-source database optimized for storing time series data. It is implemented as an extension of PostgreSQL and combines the ease-of-use of relational databases and the speed of NoSQL databases. By ...
•
By
Vadym Kalsin
PostgreSQL
CentOS
-
Published Tutorial
PostgreSQL, or Postgres, is a relational database management system that provides an implementation of the SQL querying language. It is a popular choice for many small and large projects and has the advantage of bein...
•
By
Mitchell Anicas, Vadym Kalsin
PostgreSQL
CentOS
Databases
-
Published Tutorial
TimescaleDB is an open-source database optimized for storing time series data. It is implemented as an extension of PostgreSQL and combines the ease-of-use of relational databases and the speed of NoSQL databases. By ...
•
By
Vadym Kalsin
Databases
PostgreSQL
Open Source
-
Published Tutorial
Grafana is an open-source data visualization and monitoring tool that integrates with complex data from sources like Prometheus, InfluxDB, Graphite, and ElasticSearch. In this tutorial, you will install Grafana and se...
•
By
Vadym Kalsin
Data Analysis
Monitoring
Ubuntu 18.04
Open Source
-
Published Tutorial
OTRS, also known as the Open source Ticket Request System, is a help desk and IT service management system. In this tutorial, you will install OTRS Community Edition on an Ubuntu 18.04 server and set up a simple help ...
•
By
Vadym Kalsin
Email
Apache
MySQL
Perl
Ubuntu 18.04
Open Source
-
Published Tutorial
Zabbix is open-source monitoring software for networks and applications. In this tutorial, you will configure a Zabbix-based monitoring system on two CentOS 7 machines. One will be configured as the server, and the ot...
•
By
Vadym Kalsin
Monitoring
Networking
High Availability
System Tools
PHP
Apache
MySQL
MariaDB
CentOS
Open Source
-
Published Tutorial
SSL certificates are used within web servers to encrypt the traffic between the server and client, providing extra security for users accessing your application. Let’s Encrypt provides an easy way to obtain and instal...
•
By
Vadym Kalsin, Erika Heidi
Let's Encrypt
Security
Apache
CentOS
Open Source
-
Published Tutorial
Zabbix is open-source monitoring software for networks and applications. In this tutorial, you will configure a Zabbix-based monitoring system on two Ubuntu 18.04 machines. One will be configured as the server, and th...
•
By
Vadym Kalsin
High Availability
Monitoring
System Tools
Apache
MySQL
PHP
Ubuntu 18.04
Open Source
-
Published Tutorial
Metricbeat, the replacement for Topbeat, is a lightweight data shipper that collects CPU and memory statistics from a server and sends the data directly to your Elasticsearch deployment. In this tutorial, you will use...
•
By
Vadym Kalsin
Elasticsearch
Monitoring
Logging
CentOS
Open Source
-
Published Tutorial
Metricbeat, the replacement for Topbeat, is a lightweight data shipper that collects CPU and memory statistics from a server and sends the data directly to your Elasticsearch deployment. In this tutorial, you will use...
•
By
Vadym Kalsin
Elasticsearch
Monitoring
Logging
Ubuntu 18.04
Open Source
-
Published Tutorial
In this tutorial for CentOS 7, you will learn how to install all of the components of the Elastic Stack, a collection of open-source software produced by Elastic which allows you to search, analyze, and visualize logs...
•
By
Vadym Kalsin
Elasticsearch
Logging
Monitoring
Nginx
CentOS
Open Source
-
Published Tutorial
In this tutorial, we will go over the installation of the Elasticsearch ELK Stack on Ubuntu 16.04 (that is, Elasticsearch 2.3.x, Logstash 2.3.x, and Kibana 4.5.x). We will also show you how to configure it to gather a...
•
By
Justin Ellingwood, Vadym Kalsin
Elasticsearch
Monitoring
Logging
Nginx
Ubuntu
Ubuntu 16.04
-
Published Tutorial
In this tutorial, we will go over the installation of the Elastic Stack on an Ubuntu 18.04 server. You will learn how to install all the components of the Elastic Stack (including Filebeat, a Beat used for forwarding ...
•
By
Justin Ellingwood, Vadym Kalsin
Elasticsearch
Monitoring
Configuration Management
Ubuntu 18.04
Ubuntu