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Common Problems 118019

Ubuntu 18.04 LTS Docker Service Fails to Start

🟠 High   ⏱ 5–30 min  Last verified: 27 December 2022 Affected versions: 18.04 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 & […]

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IBM AIX 7.3 — CVE-2022-40747 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.3

IBM AIX 7.3 — CVE-2022-40747 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 27 December 2022 Affected versions: IBM AIX 7.3 📖 ~4 min read  •  Source: NVD CVE-2022-40747, IBM Support Bulletin CVE: CVE-2022-40747 NVD summary: "IBM InfoSphere Information Server 11.7 is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit […]

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Common Problems 113005

Windows Server 2016 – AD CS certificate template error – The requested certificate template is not supported – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 27 December 2022 Affected versions: Windows Server 2016 📖 ~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 […]

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Debian 11 — hunspell — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — hunspell — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-16707 Upstream summary: Hunspell 1.7.0 has an invalid read operation in SuggestMgr::leftcommonsubstring in suggestmgr.cxx. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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Common Problems 114416

RPM Database Corruption on RHEL 9

🟡 Medium   ⏱ 5–30 min  Last verified: 27 December 2022 📖 ~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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Initial Server Setup with IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

Initial Server Setup with 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 server setup with ibm aix 7.3 on IBM AIX […]

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Common Problems 111646

Windows Server 2022 – Failover cluster loses quorum after single node failure – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 27 December 2022 Affected versions: Windows Server 2022 📖 ~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 […]

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Debian 11 — filter — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — filter — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-1272 Upstream summary: Buffer overflow in the save_embedded_address function in filter.c for elm/bolthole filter 2.6.1 allows remote attackers to execute arbitrary code via a crafted email message. Table […]

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Scaling Ruby on Rails: Setting Up A Dedicated PostgreSQL Server (Part 3) — step-by-step Linux tutorial on Progressive Robot

Scaling Ruby on Rails: Setting Up A Dedicated PostgreSQL Server (Part 3)

In this installation of our the cloud provider Scaling-Rails series, we are going to find out how to build a PostgreSQL server from scratch to use as the database persistence layer for Ruby-on-Rails web-applications. Continuing, we are going to see how to connect our Rails application servers with the database by making the necessary configuration changes.

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