An Introduction to Let’s Encrypt
Let’s Encrypt is an open and automated certificate authority that uses the (ACME) protocol to provide free TLS/SSL certificates to any compatible client. There are dozens of clients…
Top 10 Security Practices for Protecting Your Infrastructure
From firewalls, to user privileges, to access controls — this talk will not only explain the how, but also dive into the why of common security practices.
Como Configurar sua Própria VPN com PPTP
Uma das questões mais comuns entre nossos usuários é sobre como adicionar outro endereço IP ao seu servidor. Você pode atribuir seu próprio endereço IP privado ao seu droplet através da criação de um túnel VPN. Esteja você construindo sua própria Rede Virtual Privada (VPN), ou atribuindo um certificado SSL para esse endereço IP, você tem várias opções. De todas as possíveis opções, as mais otimizadas estão entre PPTP e OpenVPN. O protocolo de Tunelamento Ponto-a-Ponto (PPTP) permite a você imple
How to Secure and Monitor Kafka
Secure your Apache Kafka with TLS and SASL, and visualize metrics in Grafana. Learn to configure for safety and monitor with AKHQ.
How To Set Up SSH Tunneling on a VPS
In this article, you’ll learn how to create a safe, encrypted tunnel between your computer and your VPS along with how to bypass limits in a corporate network, how to bypass NAT, etc.
Cómo listar y eliminar reglas de firewall de Iptables
Iptables es una tecnología de firewall que tiene una función esencial en la seguridad de la red para muchos sistemas Linux. En este tutorial, veremos cómo hacer las siguientes tareas de iptables: listar reglas, borrar contadores de paquetes y bytes, eliminar reglas, vaciar cadenas (eliminar todas las reglas de una cadena) y restablecer por completo un firewall de iptables.
Spring Security Example Tutorial
URL: https://www.progressiverobot.com/spring-security-example-tutorial/ Spring Security provides ways to perform authentication and authorization in a web application. We can use spring security in any servlet based web application. Spring Security  Some of the benefits of using Spring Security are: Proven technology, it's better to use this than reinvent the wheel. Security is something […]
Why Insurers Reject Cyber Claims: The Mandatory Security Frameworks Your Business Must Prove Today
A practical guide to the security frameworks, proof artifacts, and IT controls businesses must show before cyber insurers accept claims.
HAproxy SSL/TLS Warning: Setting tune.ssl.default-dh-param to 1024 by default
You may encounter an HAProxy Setting tune.ssl.default-dh-param to 1024 by default warning message if your HAProxy server is configured with an SSL/TLS certificate and key, but there isn’t a value set for the tune.ssl.default-dh-param parameter in the configuration file. In…
Iptablesファイアウォールルールを一覧表示および削除する方法
Iptablesは、多くのLinuxシステムのネットワークセキュリティで重要な役割を果たすファイアウォール技術です。このチュートリアルでは、次のiptablesタスクの実行方法について説明します。ルールの一覧表示、パケットおよびバイトカウンタのクリア、ルールの削除、チェーンのフラッシュ（チェーン内のすべてのルールの削除）、iptablesファイアウォールの完全なリセット。