Introduction to localStorage and sessionStorage
Learn how to use localStorage and sessionStorage in your web apps.
Debian 11 — perltidy — multiple vulnerabilities (2 CVEs) — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 13 September 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2014-2277 CVE-2016-10374 Upstream summary: The make_temporary_filename function in perltidy 20120701-1 and earlier allows local users to obtain sensitive information or write to arbitrary files via a symlink attack, […]
How To Secure PostgreSQL on an Ubuntu VPS
Database management systems are extremely useful for handling information from websites and applications. PostgreSQL is a popular database management system that is incredibly powerful. When using PostgreSQL, it is essential that you take proper precautions to secure your databases. This article is an introduction to security practices when using PostgreSQL
AlmaLinux 8 — qt5-qtserialbus — vulnerability — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read • Source: AlmaLinux ALSA ALSA-2021:4172 Related CVEs: CVE-2021-3481 Upstream summary: Qt is a software toolkit for developing applications. The following packages have been upgraded to a later upstream version: adwaita-qt (1.2.1), python-qt5 (5.15.0), qgnomeplatform (0.7.1), qt5 […]
App Lifecycle Development on an app platform using Claude Code
Use AI Agents to automate an entire development lifecycle in Claude Code from initial project setup to preparing a production release.
Ubuntu 20.04 — shibboleth-sp — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 13 September 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4925-1 Related CVEs: CVE-2021-28963 Upstream summary: Toni Huttunen and Fraktal Oy discovered that the Shibboleth Service provider allowed content injection due to allowing attacker-controlled parameters in error or other status […]
Android Spinner using Kotlin
In this tutorial, we'll be discussing and implementing Spinners in our Android Application using Kotlin. [Android Spinner](/community/tutorials/android-spinner-drop-down-list) is used to create a drop-down list on the screen. What will you learn? Creating Spinners through XML and Programmatically Setting a prompt on the Spinner. Creating a custom layout for the Spinner. Handling Click Listeners and Display […]
How to Use Docker Volumes on FreeBSD 13
Introduction Deploying use docker volumes on freebsd 13 on a FreeBSD 13 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard base […]
Oracle Linux 8 — samba security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2019-3582)
🟡 Medium ⏱ 10–30 min Last verified: 12 September 2021 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2019-3582 Related CVEs: CVE-2019-3880 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
AlmaLinux 8 — nfs4-acl-tools — vulnerability — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read • Source: AlmaLinux ALSA ALBA-2019:3664 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]
