Introduction In this tutorial, we will go over the installation of the Elasticsearch ELK Stack on CentOS 7—that is, Elasticsearch 2.2.x, Logstash 2.2.x, and Kibana 4.4.x. We will also show you how to configure it to gather and visualize the syslogs of your systems in a centralized location, using Filebeat 1.1.x. Logstash is an open source tool for collecting, parsing, and storing logs for future u
Introduction In many VPS environments, it is often the case that you will have a number of small programs that you want to run persistently, whether these are small shell scripts, Node.js apps, or any large-sized packages. Usually, external packages are supplied with a unit file that allows them to be managed by an init system such as systemd, or packaged as docker images which can be managed by a
Introduction TLS, or transport layer security, and its predecessor SSL, secure sockets layer, are secure protocols created in order to place normal traffic in a protected, encrypted wrapper. These protocols allow traffic to be sent safely between remote parties without the possibility of the traffic being intercepted and read by someone in the middle. They are also instrumental in validating the i
Introduction Carefully declaring the duties of each and every element of an application deployment stack brings along a lot of benefits with it, including simpler diagnosis of problems when they occur, capacity to scale rapidly, as well as a more clear scope of management for the components involved. In today’s world of web services engineering, a key component for achieving the above scenario inv
Introduction Apache is one of the most popular web servers currently used on the Internet. It is easy to set up and configure on Linux distributions like Ubuntu and Debian, as it comes in the package repositories and includes a default configuration that works out of the box. Ansible is an automation tool that allows you to remotely configure systems, install software, and perform complex tasks ac
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