Flatten Arrays in Vanilla JavaScript with flat() and flatMap()
An overview of two new methods available on the Array prototype in JavaScript: flat and flatMap.
Debian 11 — guacamole-server — multiple vulnerabilities (2 CVEs) — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2020-9497 CVE-2020-9498 Upstream summary: Apache Guacamole 1.1.0 and older do not properly validate datareceived from RDP servers via static virtual channels. If a userconnects to a malicious or […]
How to Integrate Windows Server with Azure Active Directory on Windows Server 2022
Introduction to Azure Active Directory and Hybrid Identity Azure Active Directory (Azure AD), now rebranded as Microsoft Entra ID, is Microsoft’s cloud-based identity and access management service. Unlike traditional on-premises Active Directory Domain Services (AD DS), which relies on Kerberos and LDAP within your network perimeter, Azure AD is built for the modern web — […]
How To Use passwd and adduser to Manage Passwords on a Linux VPS
Password and user management is essential for even the most inexperienced system administrators. This guide will cover how to read authentication files and use the “passwd” and “adduser” tools to change this information.
IBM AIX 7.2 — CVE-2022-34356 — vulnerability — patch and remediation guide
🟠 High ⏱ 30–90 min Last verified: 25 May 2026 Affected versions: IBM AIX 7.2 Affected: 7.1, 7.2, 7.3 📖 ~4 min read • Source: NVD CVE-2022-34356, IBM Support Bulletin CVE: CVE-2022-34356 NVD summary: IBM AIX 7.1, 7.2, 7.3, and VIOS 3.1 could allow a non-privileged local user to exploit a vulnerability in the […]
How To Understand the Filesystem Layout in a Linux VPS
Finding your way around a Linux filesystem can be confusing if you are unfamiliar with the operating system. However, to get anything useful done, it is necessary to have a basic understanding of how Linux organizes its file tree. In this guide, we will explore how Linux divides up its filesystem and how to find your way around.
Настройка ключей SSH в CentOS 7
SSH или защищенная оболочка — это шифрованный протокол, используемый для администриования и связи с серверами. При работе с сервером CentOS вы проведете больше всего времени в сеансах терминала с подключением к серверу через SSH. В этом обучающем модуле мы расскажем о настройке…
IBM AIX 7.3 — CVE-2012-2200 — vulnerability — patch and remediation guide
🟠 High ⏱ 30–90 min Last verified: 25 May 2026 Affected versions: IBM AIX 7.3 Affected: 7.1 📖 ~4 min read • Source: NVD CVE-2012-2200, IBM Support Bulletin CVE: CVE-2012-2200 NVD summary: The default configuration of sendmail in IBM AIX 6.1 and 7.1, and VIOS 2.2.1.4-FP-25 SP-02, allows local users to gain privileges by […]
How To Create a Self-Signed SSL Certificate for Apache on CentOS 8
In this guide, we will show you how to create and configure a self-signed TLS/SSL certificate with the Apache web server on a CentOS 8 machine.
Styling Placeholder Text Using CSS
Here’s how to style the placeholder text of inputs.
