Unison is an open-source file synchronization tool. In this tutorial, you will install and configure Unison on a pair of servers and use it backup up a directory. You will also configure Unison to use SSH as the secure communication protocol and create a cron job.
When you start a new server, there are a few steps that you should take every time to add some basic security and set a solid foundation. In this guide, we’ll walk you through the basic steps necessary to hit the ground running with Ubuntu 14.04.
SSH, o shell seguro, es un protocolo cifrado que se usa para administrar servidores y comunicarse con ellos. Al trabajar con un servidor de Ubuntu, es probable que pase la mayor parte de su tiempo en una sesión de terminal conectada a su servidor a través de SSH. En esta…
In this tutorial, we will show an essential first step toward mitigating the specific risk that can be created when configuring PostgreSQL to allow remote connections. While this an important first step, since servers can be compromised in other ways, we also recommend that you take additional measures to protect your data, outlined in the section, [Additional Security Considerations](#additional-security-configuration).
Un réseau privé virtuel (VPN) vous permet de traverser des réseaux non fiables comme si vous étiez sur un réseau privé. Il vous donne la liberté d’accéder à l’internet en toute sécurité depuis votre smartphone ou votre…
the cloud provider Volumes are scalable, SSD-based block storage devices. This tutorial covers how to create a passphrase-protected encrypted disk on your Volume containing a file systemm anually mount the encrypted file system for use, unmount and relock it when you’re done, and automatically mount the file system when the Droplet boots.
Uma versão anterior deste tutorial foi escrita por Justin Ellingwood. O TLS, ou segurança de camada de transporte e seu antecessor, o SSL, que significa camada de socket segura, são protocolos Web usados…
A CSP is an HTTP header that provides an extra layer of security against code-injection attacks, such as cross-site scripting (XSS), clickjacking, and other similar exploits. It facilitates the creation of an “allowlist” of trusted content and blocks the execution of code from sources not present in the allowlist. In this tutorial, you’ll review the different protections the CSP header offers by implementing one in a Node.js application. You’ll also collect JSON reports of CSP violations.
Learn SSH essentials, including servers, clients, and SSH keys, to securely connect to and manage remote systems.
A Let’s Encrypt é uma autoridade certificadora (CA) que fornece uma maneira descomplicada de obter e instalar certificados TLS/SSL gratuitos, habilitando…
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