AMP HTML, an Overview
Here’s what you need to know about Accelerated Mobile Pages (AMP). Get ready to make your pages lightning fast on mobile!
How To Work with Files Using Streams in Node.js
Streams are an efficient way to handle files in Node.js. In this tutorial, you’ll create a command-line program, and then use it with streams to read, write, copy, and transform files.
How To Send Email through an External SMTP Service with Sendmail on FreeBSD 10.1
In this tutorial we’ll go over how to connect FreeBSD’s built-in Sendmail service to SendGrid to send emails from your server. You can also adapt the settings for a different external mail service without much trouble.
FreeBSD 12 — h2o — multiple vulnerabilities (11 CVEs) — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: h2o — HTTP/2 Rapid Reset attack vulnerability Related CVEs: CVE-2015-5638 CVE-2016-1133 CVE-2016-4864 CVE-2017-10868 CVE-2017-10869 CVE-2018-0608 CVE-2019-9512 CVE-2019-9514 +3 more Upstream summary: Kazuo Okuhu reports: H2O is vulnerable to the HTTP/2 […]
Überwachen des Serverzustands mit Checkmk unter Ubuntu 18.04
Der Autor hat den Open Internet/Free Speech Fund dazu ausgewählt, eine Spende im Rahmen des Programms Write for DOnations zu erhalten. Als Systemadministrator ist es eine bewährte…
How to Install Nomad on RHEL 10
Introduction How to Install Nomad on RHEL 10 on RHEL 10 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is reproducible and production-safe. […]
Auflisten und Löschen von iptables-Firewall-Regeln
Iptables ist eine Firewall-Technologie, die in vielen Linux-Systemen eine wesentliche Rolle bei der Netzwerksicherheit spielt. In diesem Tutorial erläutern wir die Verwendung der folgenden iptables-Aufgaben: Regeln auflisten, Paket- und Byte-Zähler löschen, Regeln löschen, Ketten leeren (alle Regeln in einer Kette löschen) und iptables-Firewall vollständig zurücksetzen.
How To Implement JavaScript Array Methods From Scratch
JavaScript includes several functions for working with arrays that go beyond the `for` loop. You may have used these functions in your own projects and wondered how they work and why you’d use one over another. There’s no better way to ensure that you understand how something works than building your own version from scratch. In this article you are going to do just that by creating your own versions of `map`, `reduce`, `sort`, and `filter` from scratch.
How To Build a UI Component with React and Storybook
In this tutorial, we will create a React UI component library with Storybook, customize its theme, and deploy the React project as a static site.
FreeBSD 12 — mksh — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: mksh — TTY attachment privilege escalation Related CVEs: CVE-2008-1845 Upstream summary: Secunia reports: The vulnerability is caused due to an error when attaching to a TTY via the -T command […]
