security

How To Use OPIE to Get One-Time Passwords for FreeBSD 10.1 — step-by-step Linux tutorial on Progressive Robot

How To Use OPIE to Get One-Time Passwords for FreeBSD 10.1

In this tutorial, you will learn how to generate and use one-time passwords to log in to your remote FreeBSD server. You can pregenerate one or more one-time passwords when you’re in a safe location, and save them for later when you access your server from a less secure location. That way, even if your one-time password gets logged, it won’t ever be useful to an attacker.

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How To Use Tripwire to Detect Server Intrusions on an Ubuntu VPS — step-by-step Linux tutorial on Progressive Robot

How To Use Tripwire to Detect Server Intrusions on an Ubuntu VPS

Although it is possible to guard your server environment against attacks, it is important to be able to detect whether an intruder does manage to compromise your security. Tripwire is a tool that can be used to detect changes in the filesystem that may indicate that an unauthorized person has entered and modified files. In this guide, we will discuss how to install and configure tripwire on an Ubuntu 12.04 VPS.

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Configuración inicial del servidor con Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

Configuración inicial del servidor con Ubuntu 20.04

Cuando crea por primera vez un nuevo servidor Ubuntu 20.04, debe realizar algunos pasos de configuración importantes como parte de la configuración básica. Estos pasos aumentarán la seguridad y utilidad de su servidor, y le brindará una base sólida para las siguientes…

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Как настроить ключи SSH в Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

Как настроить ключи SSH в Ubuntu 18.04

SSH (secure shell, безопасная оболочка) представляет собой шифрованный протокол для администрирования и взаимодействия между серверами. Во время работы с сервером Ubuntu вы, скорее всего, будете проводить большую часть времени в вашем терминале, подключенном через SSH к вашему…

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Understanding Suricata Signatures — step-by-step Security tutorial on Progressive Robot

Understanding Suricata Signatures

In this tutorial you’ll learn how Suricata signatures are structured, and some important options that are commonly used in most rules. Once you are familiar with how to understand the structure and fields in a signature, you’ll be able to write your own signatures that you can combine with a firewall to alert you about most suspicious traffic to your servers, without needing to use other external rulesets.

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How To Access Vault Secrets Inside of Kubernetes Using External Secrets Operator (ESO) — step-by-step Kubernetes tutorial on Progressive Robot

How To Access Vault Secrets Inside of Kubernetes Using External Secrets Operator (ESO)

Secrets in Kubernetes can be used in pods to avoid keeping connection strings and other sensitive data in source control or to prevent your application from accessing sensitive data directly. Storing secrets in a secret store is a secure way to allow access for the required tools. In this tutorial, you’ll install the External Secrets Operator in a the cloud provider-managed Kubernetes cluster and set up a SecretStore as well as an ExternalSecrets to fetch some values from a HashiCorp Vault instance.

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