Troubleshooting

Ubuntu 16.04 — libssh2 — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — libssh2 — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 28 April 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6371-1 Related CVEs: CVE-2020-22218 CVE-2019-13115 CVE-2019-17498 CVE-2019-3855 CVE-2019-3856 CVE-2019-3857 CVE-2019-3858 CVE-2019-3859  +4 more Upstream summary: It was discovered that libssh2 incorrectly handled memory access. An attacker could possibly use this […]

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SLES 12 — spice-vdagent — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — spice-vdagent — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 28 April 2020 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2020:3268-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-25653 CVE-2020-25650 CVE-2020-25651 CVE-2020-25652 CVE-2017-15108 Upstream summary: A race condition vulnerability was found in the way the spice-vdagentd daemon handled new client connections. This flaw […]

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openSUSE Tumbleweed — rpmlint — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — rpmlint — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2019:2408-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-3689 Upstream summary: The nfs-utils package in SUSE Linux Enterprise Server 12 before and including version 1.3.0-34.18.1 and in SUSE Linux Enterprise Server 15 before […]

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How to Use Terraform to Provision Infrastructure on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Use Terraform to Provision Infrastructure on RHEL 8

With Terraform installed on RHEL 8, the next step is writing real-world HCL configurations that provision cloud infrastructure. HashiCorp Configuration Language 2 (HCL2) provides a clean, human-readable syntax for defining providers, resources, variables, and outputs that can be version-controlled alongside your application code. This tutorial walks through provisioning an AWS EC2 instance — covering input […]

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Common Problems 121141

Python Module Not Found in Production Script

🟡 Medium   ⏱ 5–30 min  Last verified: 27 April 2020 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 & […]

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Common Problems 113629

Windows Server 2012 R2 – SACL configured but no audit events generated – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 27 April 2020 Affected versions: Windows Server 2012 R2 📖 ~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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openSUSE Tumbleweed — zoo — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — zoo — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SR:2006:005 (see also SUSE bugzilla) Related CVEs: CVE-2006-0855 CVE-2007-1669 Upstream summary: Stack-based buffer overflow in the fullpath function in misc.c for zoo 2.10 and earlier, as used in products such as Barracuda […]

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Common Problems 113520

Windows Server 2012 R2 — Computer secure channel broken: machine cannot authenticate to domain — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 27 April 2020 Affected versions: Windows Server 2012 R2 📖 ~2 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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How to Install .NET Core 3.1 on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install .NET Core 3.1 on Debian 10

Introduction This guide explains how to Install .NET Core 3.1 on Debian 10 on Debian 10 Buster. Debian Buster uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 10 install with the […]

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