How to Optimize the Performance of a Flask Application
Learn how to efficiently improve your Flask application performance to improve scalability and responsiveness, ensuring it runs efficiently even under heavy load.
How to Configure BitLocker Network Unlock on Windows Server 2016
How to Set Up BitLocker Network Unlock on Windows Server 2016 BitLocker Drive Encryption protects data at rest by encrypting entire volumes. In environments where servers need to restart automatically without manual PIN entry — such as after patching or power restoration — BitLocker Network Unlock provides a solution. Network Unlock allows a server to […]
How To Install Vanilla Forums on Ubuntu 12.10
Read through this tutorial to install Vanilla Forums on Ubuntu 12.10.
How To Install and Secure Redis on Debian 9
Redis is an in-memory key-value store known for its flexibility, performance, and wide language support. This tutorial demonstrates how to install, configure, and secure Redis on a Debian 9 server.
Ubuntu 22.04 — node-moment — multiple vulnerabilities (2 CVEs) — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5559-1 Related CVEs: CVE-2022-24785 CVE-2022-31129 Upstream summary: It was discovered that Moment.js incorrectly handled certain input paths. An attacker could possibly use this issue to cause a loss of integrity […]
How To Implement Distributed Tracing with Jaeger on Kubernetes
In this tutorial, we will deploy a very small distributed application to a Kubernetes cluster and simulate a performance lag using a sleep function in our code. To find the root cause of this issue and to trace each event, we will use Jaeger. With distributed tracing enabled, we’ll see how easy it is to observe the behavior of Services and pinpoint issues.
How To Do Canary Deployments With Istio and Kubernetes
When introducing new versions of a service, it is often desirable to shift a controlled percentage of user traffic to a newer version of the service in the process of phasing out the older version. This technique is called a canary deployment. In this tutorial, you will create a canary deployment using Istio with Kubernetes.
SLES 15 — python2-ujson — multiple vulnerabilities (3 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: SLES 15 📖 ~4 min read • Source: SUSE advisory SUSE-SU-2023:2134-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-45958 CVE-2022-31116 CVE-2022-31117 Upstream summary: UltraJSON (aka ujson) through 5.1.0 has a stack-based buffer overflow in Buffer_AppendIndentUnchecked (called from encode). Exploitation can, for example, use […]
How to Set Up Windows Server 2022 Group Policy Preferences
Introduction to Credential Guard Credential Guard is a virtualization-based security (VBS) feature introduced in Windows 10 and Windows Server 2016 that protects derived credential material — specifically NTLM password hashes and Kerberos Ticket Granting Tickets (TGTs) — from extraction by malicious code running in the operating system. On Windows Server 2022, Credential Guard is enhanced […]
How To Build a Search Bar with RxJS
RxJS is a popular library for reactive programming in JavaScript. In this tutorial, you will use RxJS to build a feature-rich search bar that returns real-time results to users.
