One of the easiest way of increasing the responsiveness of your server and guarding against out of memory errors in your applications is to add some swap space. In this guide, we will cover how to add a swap file to an Ubuntu 16.04 server. <$>[warning] [label…
Learn how to allow MySQL remote access safely: bind to a private IP, lock down port 3306 with firewalls, create least-privilege users, enable SSL/TLS, and use AI-assisted audits to prevent misconfigurations.
MongoDB is one of the most popular NoSQL database engines. It is famous for being scalable, powerful, reliable and easy to use. In this article we’ll show you how to back up, restore, and migrate your MongoDB databases.
Rsyslog, Elasticsearch, and Logstash provide the tools to transmit, transform, and store your log data. In this tutorial, you will learn how to create a centralized rsyslog server to store log files from multiple systems and then use Logstash to send them to an Elasticsearch server. From there, you can decide how best to analyze the data.
In this tutorial we are going to configure a mail server using Postfix, Dovecot, MySQL, and SpamAssassin on Ubuntu 12.04.
Bind, the most popular DNS server, is used as the backbone of much of the world’s DNS system. In this guide, we will discuss how to configure a pair of DNS servers to act as primary and secondary authoritative-only DNS servers for your domains. We will be demonstrating this on Ubuntu 14.04.
Learn how to configure Nginx access and error logs and set up log rotation on Ubuntu to prevent disk issues and improve monitoring.
Uma versão anterior deste tutorial foi escrita por Melissa Anderson. O MongoDB, também conhecido como Mongo, é um banco de dados de documentos de código aberto usado comumente em…
YaCy is an alternative, peer-to-peer based search engine. It can be used as an alternative to popular engines like Google, Yahoo, etc. In this guide, we will discuss how to install and configure this tool on an Ubuntu 12.04 VPS. We will then discuss how you can contribute to the global search indexes, or use YaCy to provide a site search tool for your domain.
Heartbeat is an open source program that provides cluster infrastructure capabilities—cluster membership and messaging—to client servers, which is a critical component in a high availability (HA) server infrastructure. Heartbeat is typically used in conjunction with a cluster resource manager (CRM), such as Pacemaker, to achieve a complete HA setup. However, in this tutorial, we will demonstrate how to create a 2-node HA server setup by simply using Heartbeat and a the cloud provider Reserved IP.
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