Operations

Debian 11 — s3d — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — s3d — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 8 November 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-6876 CVE-2014-1226 Upstream summary: The (1) pty_init_terminal and (2) pipe_init_terminal functions in main.c in s3dvt 0.2.2 and earlier allows local users to gain privileges by leveraging setuid permissions […]

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How to Set Up IIS Application Pools on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Set Up IIS Application Pools on Windows Server 2022

How to Install SQL Server Management Studio (SSMS) on Windows Server 2022 SQL Server Management Studio (SSMS) is the primary GUI client for administering SQL Server instances, Azure SQL Database, Azure SQL Managed Instance, and Azure Synapse Analytics. On Windows Server 2022, SSMS is not bundled with SQL Server itself — it is a free, […]

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Ubuntu 20.04 — nautilus — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — nautilus — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 8 November 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5786-1 Related CVEs: CVE-2022-37290 Upstream summary: It was discovered that GNOME Files incorrectly handled certain filenames. An attacker could possibly use this issue to cause GNOME Files to crash, leading […]

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How to Install Composer on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install Composer on RHEL 8

Composer is the de facto dependency manager for PHP, used by virtually every modern PHP framework and library including Laravel, Symfony, and Guzzle. It resolves and installs packages from Packagist, handles autoloading, and tracks version constraints so your project dependencies stay consistent across environments. This tutorial covers installing Composer on RHEL 8 using the official […]

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Common Problems 118543

Ubuntu 16.04 LTS – GRUB update fails and kernel entry is missing – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 7 November 2022 Affected versions: Ubuntu 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 […]

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Common Problems 117052

Ubuntu 22.04 microphone not recording

🟡 Medium   ⏱ 5–30 min  Last verified: 7 November 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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IBM AIX 7.3 — CVE-2022-22485 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.3

IBM AIX 7.3 — CVE-2022-22485 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 7 November 2022 Affected versions: IBM AIX 7.3 📖 ~4 min read  •  Source: NVD CVE-2022-22485, IBM Support Bulletin CVE: CVE-2022-22485 NVD summary: In some cases, an unsuccessful attempt to log into IBM Spectrum Protect Operations Center 8.1.0.000 through 8.1.14.000 does not cause the administrator's invalid sign-on […]

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Common Problems 111788

Windows Server 2022 — IIS ARR reverse proxy returning 502.3 timeout errors — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 7 November 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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How to Configure Role-Based Access Control (RBAC) on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Configure Role-Based Access Control (RBAC) 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 role-based access control (rbac) on IBM AIX 7.3 […]

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