Backing up your [Apache Kafka](http://kafka.apache.org/) data is an important practice that will help you recover from unintended data loss or bad data added to the cluster due to user error. In this tutorial, you will back up, import, and migrate your Kafka data on a single CentOS 7 installation as well as on multiple CentOS 7 installations on separate servers.
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Debian 9 (stretch) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2017-5664 CVE-2017-7674 CVE-2018-8014 CVE-2018-1304 CVE-2019-17569 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative […]
Facade Design Pattern is one of the Structural design patterns (such as [Adapter pattern](/community/tutorials/adapter-design-pattern-java "Adapter Design Pattern in Java – Example Tutorial") and [Decorator pattern](/community/tutorials/decorator-design-pattern-in-java-example "Decorator Pattern in Java – Example Tutorial")). Facade design pattern is used to help client applications to easily interact with the system. Facade Design Pattern ![facade design pattern, facade pattern, […]
The simple steps to setup Material Design components in your Angular 2+ apps.
In this article, you will review what GraphQL is, familiarize yourself with important terminology and concepts of GraphQL, and discover how the GraphQL specification compares with the REST architectural style.
A source-backed guide to Pascal Editor covering the browser demo, core building and interior tools, local autosave, JSON portability, open-source architecture, and self-hosting path.
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.2.2-r0 📖 ~4 min read • Source: Alpine secdb entry — irssi 1.2.2-r0 Related CVEs: CVE-2019-15717 CVE-2019-13045 CVE-2019-5882 CVE-2018-7050 CVE-2018-7051 CVE-2018-7052 CVE-2018-7053 CVE-2018-7054 +12 more Upstream summary: Alpine community repository for vedge ships irssi 1.2.2-r0 which […]
A practical guide to transforming legacy databases into reliable insight engines through data quality, governance, analytics, integration, and phased modernization.
🟡 Medium ⏱ 5–30 min Last verified: 20 May 2026 Affected versions: Debian 10 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & […]
Introduction This tutorial covers How to Set Up Checkmk on SLES 12 on SLES 12. SLES 12 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 12 system is up to date: zypper refresh […]
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