chris

Alpine Linux edge — kpmcore — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — kpmcore — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 4.2.0-r0 📖 ~4 min read  •  Source: Alpine secdb entry — kpmcore 4.2.0-r0 Related CVEs: CVE-2020-27187 Upstream summary: Alpine community repository for vedge ships kpmcore 4.2.0-r0 which addresses CVE-2020-27187. Table of contents Symptom & Impact Environment […]

Read more
Common Problems 118509

Ubuntu 16.04 LTS Apache Fails to Start Due to Port Conflict

🟡 Medium   ⏱ 5–30 min  Last verified: 5 August 2020 Affected versions: 16.04 LTS 📖 ~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 & […]

Read more
Common Problems 117581

Ubuntu 20.04 LTS – kubelet fails to start due to cgroup driver mismatch – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 5 August 2020 Affected versions: Ubuntu 20.04 LTS 📖 ~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 […]

Read more
Common Problems 115062

RHEL 8 tuned Profile Not Applied After Reboot

🟡 Medium   ⏱ 5–30 min  Last verified: 5 August 2020 Affected versions: 8.5 8.6 8.7 8.8 8.9 8.10 📖 ~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 & […]

Read more
How to Configure Apache2 MPM Worker on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure Apache2 MPM Worker on Debian 10

Introduction Deploying configure apache2 mpm worker on debian 10 on a Debian 10 Buster machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Ensure Debian […]

Read more
[Solved] org.hibernate.AnnotationException: No identifier specified for entity Class — step-by-step DevOps tutorial on Progressive Robot

[Solved] org.hibernate.AnnotationException: No identifier specified for entity Class

URL: https://www.progressiverobot.com/solved-org-hibernate-annotationexception-no-identifier-specified-for-entity-class/ Recently I was working on a hibernate project and I have added few entity beans, when executed I got below exception stack trace. Initial SessionFactory creation failed.org.hibernate.AnnotationException: No identifier specified for entity: com.journaldev.hibernate.model.Address org.hibernate.AnnotationException: No identifier specified for entity: com.journaldev.hibernate.model.Address at org.hibernate.cfg.InheritanceState.determineDefaultAccessType(InheritanceState.java:277) at org.hibernate.cfg.InheritanceState.getElementsToProcess(InheritanceState.java:224) at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:775) at org.hibernate.cfg.Configuration$MetadataSourceQueue.processAnnotatedClassesQueue(Configuration.java:3788) at org.hibernate.cfg.Configuration$MetadataSourceQueue.processMetadata(Configuration.java:3742) at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1410) at […]

Read more
Oracle Linux 8 — Unbreakable Enterprise kernel-container — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel-container — vulnerability — patch and remediation guide (ELSA-2021-9007)

🟠 High   ⏱ 15–60 min  Last verified: 5 August 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-9007 Related CVEs: CVE-2020-29569 CVE-2020-14381 CVE-2020-29568 CVE-2020-28374 CVE-2020-14351 CVE-2020-25705 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

Read more
Comment mettre en place un projet Node avec Typescript — step-by-step Javascript tutorial on Progressive Robot

Comment mettre en place un projet Node avec Typescript

Écrire du JavaScript côté serveur peut être difficile à mesure qu’une base de code grandit.  TypeScript est un super-ensemble de JavaScript typé (facultatif) qui peut aider à construire et à gérer des projets JavaScript à grande échelle. Cela peut être considéré comme du JavaScript avec des caractéristiques supplémentaires comme un fort typage statique, une compilation et une programmation orientée objet.  Ce tutoriel explorera comment utiliser le framework [Express](https://expressjs.com/) avec

Read more
CHAT