The LEMP software stack is a group of software that can be used to serve dynamic web pages and web applications. This is an acronym that describes a Linux operating system, with an Nginx web server. The backend data is stored in the MySQL database and the dynamic processing…
Ruby on Rails is one of the most popular application stacks for developers looking to create sites and web apps. The Ruby programming language, combined with the Rails development framework, makes app development simple.
Graylog is a powerful open source log management platform. It aggregates and extracts important data from server logs, which are often sent using the syslog protocol. It also allows you to search and visualize the logs in a web interface. In this…
L’auteur a choisi la Free Software Foundation pour recevoir un don dans le cadre du programme Write for DOnations. ProxySQL est un serveur proxy compatible SQL qui peut être…
In this tutorial, we will show an essential first step toward mitigating the specific risk that can be created when configuring PostgreSQL to allow remote connections. While this an important first step, since servers can be compromised in other ways, we also recommend that you take additional measures to protect your data, outlined in the section, [Additional Security Considerations](#additional-security-configuration).
A virtual private network, or VPN, allows you to securely encrypt traffic as it travels through untrusted networks, such as those at the coffee shop, a conference, or an airport. IKEv2, or Internet Key Exchange v2, is a…
NGINX is a fast and reliable open-source web server. It gained its popularity due to its low memory footprint, high scalability, ease of configuration, and support for the vast majority of different protocols. The main advantage of HTTP/2 is its high transfer speed for content-rich websites.
In this tutorial you’ll upgrade an existing Prometheus 1.x installation to Prometheus 2.0, update alert rules, and configure Prometheus 2 to read your old data.
In this tutorial, you’ll create a Slack slash command called `/slash`, powered by a [Flask](http://flask.pocoo.org/) app running on an Ubuntu 16.04 server behind an Nginx reverse proxy. You’ll then install this command to your Slack workspace.
GitOps, as proposed by Weaverworks in a 2017 blog post, uses Git as a “single source of truth” for CI/CD processes, integrating code changes that happen in your Git repository. In this tutorial, you will run through a demonstration of two tools that you can use to set up your own cloud-based GitOps CI/CD system: The Continuous Integration tool CircleCI and Argo CD, a declarative Continuous Delivery tool.
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