What is C?
C is an imperative, high-level programming language known for its modularity, static typing, variety of data types and operators, recursion, and structured approach to tasks.
How to Install and Configure Dovecot IMAP Server on RHEL 7
How to Install and Configure Dovecot IMAP Server on RHEL 7 Dovecot is a secure, high-performance IMAP and POP3 server that integrates seamlessly with Postfix on RHEL 7. While Postfix handles the transport of mail (sending and receiving via SMTP), Dovecot provides the retrieval layer — allowing mail clients such as Thunderbird, Outlook, or Apple […]
FreeBSD 13 — devcpu-data — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: Intel CPU issues Related CVEs: CVE-2020-0543 Upstream summary: Intel reports: Intel CPUs suffer Special Register Buffer Data Sampling vulnerability Table of contents Symptom & Impact Environment & Reproduction Root Cause […]
Удаление образов, контейнеров и томов Docker
Docker позволяет легко помещать приложения и службы в контейнеры, чтобы их можно было запускать где угодно. Однако при работе с Docker можно легко накопить чрезмерное количество неиспользуемых образов, контейнеров и томов данных, замедляющих работу…
FreeBSD 13 — php55-xml — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: php — multiple vulnerabilities Related CVEs: CVE-2016-3074 Upstream summary: The PHP Group reports: BCMath: Fixed bug #72093 (bcpowmod accepts negative scale and corrupts _one_ definition). Exif: Fixed bug #72094 (Out […]
Como instalar o Docker Compose no Ubuntu 18.04
O Docker é uma ótima ferramenta para automatizar a implantação de aplicativos Linux dentro de contêineres de software, mas para tirar total vantagem deste potencial, cada componente de um aplicativo deve executar em seu próprio contêiner individual….
![Cómo crear una aplicación de Node.js con Docker [Quickstart] — step-by-step Docker tutorial on Progressive Robot](https://www.progressiverobot.com/wp-content/uploads/2026/05/how-to-build-a-node-js-application-with-docker-quickstart-es-76052-featured.png "Cómo crear una aplicación de Node.js con Docker [Quickstart] 7")
Cómo crear una aplicación de Node.js con Docker [Quickstart]
En este tutorial, se explicará la manera de crear una imagen de una aplicación para un sitio web estático que utiliza el marco Express y Bootstrap. Luego, creará un contenedor usando esa imagen, la enviará a [Docker…
FreeBSD 13 — xscreensaver-gnome — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: xscreensaver – lock bypass Related CVEs: CVE-2015-8025 Upstream summary: RedHat bugzilla reports: In dual screen configurations, unplugging one screen will cause xscreensaver to crash, leaving the screen unlocked. Table of […]
Como adicionar espaço de swap no Ubuntu 20.04
Um das maneiras de se proteger contra erros de memória insuficiente em aplicativos é através da adição de um espaço de swap ao seu servidor. Neste guia, falaremos sobre como adicionar um arquivo swap a um servidor Ubuntu 20.04. <$>[warning] Aviso: embora o swap seja…
How to Install Certbot and Automate Let’s Encrypt Renewals on RHEL 8
Let’s Encrypt provides free, trusted TLS certificates, and Certbot is the official client for obtaining and renewing them automatically. On RHEL 8, Certbot is available through the EPEL repository and integrates tightly with both Nginx and Apache via dedicated plugins. Automating renewals with the built-in systemd timer ensures your certificates never expire without manual intervention. […]
