security

Como listar e excluir regras de firewall do Iptables — step-by-step Security tutorial on Progressive Robot

Como listar e excluir regras de firewall do Iptables

O Iptables é uma tecnologia de firewall que desempenha um papel essencial na segurança de rede para vários sistemas Linux. Neste tutorial vamos mostrar como executar as seguintes tarefas do iptables: listar regras, zerar contadores de pacotes e de bytes, excluir regras, esvaziar cadeias (excluir todas as regras em uma cadeia) e redefinir completamente um firewall iptables.

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How To Secure Nginx with Let's Encrypt on CentOS 7 — step-by-step Linux tutorial on Progressive Robot

How To Secure Nginx with Let’s Encrypt on CentOS 7

In this tutorial, we will show you how to use Let’s Encrypt to obtain a free SSL certificate and use it with Nginx on CentOS 7. We will also show you how to automatically renew your SSL certificate. If you’re running a different web server, simply follow your web server’s documentation to learn how to use the certificate with your setup.

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How To Secure Your OrientDB Database on Ubuntu 16.04 — step-by-step Linux tutorial on Progressive Robot

How To Secure Your OrientDB Database on Ubuntu 16.04

OrientDB is a multi-model, NoSQL database with support for document and graph databases. In this article, we’ll focus on securing an installation of the Community edition of OrientDB using only the resources available by default. Specifically, you’ll encrypt the OrientDB database, restrict access to the OrientDB web server and server instance, and manage OrientDB database accounts from both the web UI and console.

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Cómo configurar las llaves SSH en Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

Cómo configurar las llaves SSH en Ubuntu 18.04

SSH, o blindaje seguro (secure shell) es un protocolo encriptado para administrar y comunicarse con servidores. Al trabajar con servidores Ubuntu, generalmente pasarás la mayor parte del tiempo conectado mediante SSH desde una terminal a tu servidor. En esta guía, nos…

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How To Set Up a Local OSSEC Installation on Debian 8 — step-by-step Linux tutorial on Progressive Robot

How To Set Up a Local OSSEC Installation on Debian 8

OSSEC is an open-source, host-based intrusion detection system (HIDS) that performs log analysis, integrity checking, Windows registry monitoring, rootkit detection, time-based alerting, and active response. It’s the application to install on your server if you want to keep an eye on what’s happening inside it. In this tutorial, you’ll learn how to install OSSEC to monitor the Debian 8 server it is installed on, that is, a *local* OSSEC installation.

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How To Host a Website with Caddy on CentOS 7 — step-by-step Linux tutorial on Progressive Robot

How To Host a Website with Caddy on CentOS 7

[Caddy](https://caddyserver.com/) is a new web server which can be used in place of Apache or Nginx to serve websites. It has been created with ease of use in mind and has become a common choice for developers who want to quickly run a website without working out difficult configuration files. In this tutorial, you will install and configure Caddy. After following this tutorial, you will have a simple working website served using HTTP/2 and a secure TLS connection.

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