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[Solved] HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set — DevOps tutorial on Progressive Robot

[Solved] HibernateException: Access to DialectResolutionInfo cannot be null when ‘hibernate.dialect’ not set

I was following Hibernate Official Documentation to create a basic hibernate application with version 4.3.5.Final. When I executed the application, I got hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set even though all the configuration seemed fine to me. HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set It took […]

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Como Instalar e Configurar o pgAdmin 4 no Modo Servidor — step-by-step Linux tutorial on Progressive Robot

Como Instalar e Configurar o pgAdmin 4 no Modo Servidor

O pgAdmin Ă© uma plataforma opensource de administração e desenvolvimento para PostgreSQL e seus sistemas de gerenciamento de banco de dados relacionados. Escrito em Python e jQuery, ele suporta todos os recursos encontrados no PostgreSQL. VocĂŞ pode…

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How to Install k3s Lightweight Kubernetes on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install k3s Lightweight Kubernetes on RHEL 7

How to Install k3s Lightweight Kubernetes on RHEL 7 k3s is a certified, production-ready Kubernetes distribution engineered for resource-constrained environments. Developed by Rancher Labs (now part of SUSE), it packages the entire Kubernetes control plane into a single binary under 100 MB, includes Traefik as a built-in ingress controller, and removes legacy or alpha features […]

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Common Problems 116968

Ubuntu 22.04 LTS – unattended-upgrades gets stuck and blocks patching – Fix & Prevention

đźź  High   ⏱ 5–30 min  Last verified: 2 January 2023 Affected versions: Ubuntu 22.04 LTS (Jammy) đź“– ~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 […]

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Common Problems 115591

NFS Mount Timeout from firewalld and SELinux Restrictions

🟡 Medium   ⏱ 5–30 min  Last verified: 2 January 2023 đź“– ~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 & Cross-Refs References & Further […]

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IBM AIX 7.3 — CVE-2021-29798 — sql injection — patch and remediation guide — diagnosis and fix on IBM AIX 7.3

IBM AIX 7.3 — CVE-2021-29798 — sql injection — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 2 January 2023 Affected versions: IBM AIX 7.3 đź“– ~4 min read  â€˘  Source: NVD CVE-2021-29798, IBM Support Bulletin CVE: CVE-2021-29798 NVD summary: IBM Sterling B2B Integrator Standard Edition 6.0.0.0 through 6.1.1.0 is vulnerable to SQL injection. A remote attacker could send specially crafted SQL statements, which […]

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Common Problems 114892

RHEL 8 DNF Metadata Expired and Repositories Out of Sync

🟡 Medium   ⏱ 5–30 min  Last verified: 2 January 2023 đź“– ~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 & Cross-Refs References & Further […]

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How to Configure PAM Authentication on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Configure PAM Authentication on IBM AIX 7.3

Introduction IBM AIX 7.3 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure pam authentication on IBM AIX 7.3 with practical […]

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Debian 11 — ax25-tools — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — ax25-tools — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 2 January 2023 Affected versions: Debian 11 (bullseye) đź“– ~4 min read  â€˘  Source: Debian Security Tracker Related CVEs: CVE-2011-2910 Upstream summary: The AX.25 daemon (ax25d) in ax25-tools before 0.0.8-13 does not check the return value of a setuid call. The setuid call is responsible for dropping […]

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