O autor selecionou a Electronic Frontier Foundation, Inc para receber uma doação como parte do programa Write for DOnations. As ameaças de segurança estão se tornando…
Suricata is a Network Security Monitoring (NSM) tool that uses sets of community created and user defined signatures (also referred to as rules) to examine and process network traffic. In this tutorial you will learn how to install Suricata, and how to customize some of its default settings on Rocky Linux 8 to suit your needs.
Learn how to list and delete iptables firewall rules in Linux with command examples. Manage security by reviewing and removing rules safely and efficiently.
fail2ban provides a way to automatically protect virtual servers from malicious behavior. This tutorial shows you how to download the required EPEL repository needed to install Fail2Ban, copy the Configuration File, configure the fail2ban defaults, and configure the ssh defaults. This tutorial describes the required steps to set up fail2ban on CentOS.
On July 18th, 2016, a CGI application vulnerability, referred to as “HTTPoxy”, was disclosed. By passing an HTTP Proxy header with a request, an attacker can exploit vulnerable deployments by causing HTTP requests to backing services to be redirected to an arbitrary web…
Secure your containerized Node.js application by following this tutorial, which shows you how to deploy a Node.js application with an Nginx reverse proxy using Docker Compose. You will obtain certificates for your application domain with Let’s Encrypt and ensure that your application receives a high security rating.
In this tutorial, we will show you how to use Let’s Encrypt to obtain a free SSL certificate and use it with HAProxy on Ubuntu 14.04. We will also show you how to automatically renew your SSL certificate.
Let’s Encrypt is a new Certificate Authority (CA) that provides an easy way to obtain and install free TLS/SSL certificates, thereby enabling encrypted HTTPS on web servers. It simplifies the process by providing a software client, certbot (previously called letsencrypt),…
Database management systems are extremely useful for handling information from websites and applications. PostgreSQL is a popular database management system that is incredibly powerful. When using PostgreSQL, it is essential that you take proper precautions to secure your databases. This article is an introduction to security practices when using PostgreSQL
This article will show how to create a simple firewall on a Centos VPS. It will only open up ports that we want and close up other services. We’ll also demonstrate how to prevent simpler attacks, and how to let yourself back in to the VPS if you deny access to yourself by accident.
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