January 2020 - Page 21 of 62

Common Problems 121504

Debian 9 – unattended-upgrades lock prevents manual apt operations

🟡 Medium   ⏱ 5–30 min  Last verified: 21 January 2020 Affected versions: Debian 9 📖 ~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
How to Install Prometheus on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install Prometheus on Debian 10

Introduction How to Install Prometheus on Debian 10 is a fundamental operation for any administrator maintaining a Debian 10 Buster server. Debian 10 Buster ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 10. This tutorial […]

Read more
Common Problems 112561

Windows Server 2019 TempDB on System Volume Causing Server-Wide Disk Contention – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 21 January 2020 Affected versions: Windows Server 2019 📖 ~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 112481

Windows Server 2019 – Container host cannot pull images behind TLS-inspecting proxy – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 21 January 2020 Affected versions: Windows Server 2019 📖 ~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
Arch Linux — konversation — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — konversation — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201711-19 Related CVEs: CVE-2017-15923 Upstream summary: Type: denial of service. Status: Fixed. Affected: 1.7.2-1. Fixed in: 1.7.3-1. Group: AVG-489. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

Read more
FreeBSD 12 — bogofilter-qdbm — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — bogofilter-qdbm — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 21 January 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: bogofilter — RFC 2047 decoder denial-of-service vulnerability Related CVEs: CVE-2004-1007 Upstream summary: The bogofilter team has been provided with a test case of a malformatted (non-conformant) RFC-2047 encoded word that […]

Read more
Ubuntu 16.04 — jackson-databind — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — jackson-databind — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 21 January 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4813-1 Related CVEs: CVE-2018-11307 CVE-2018-12022 CVE-2018-12023 CVE-2018-14718 CVE-2018-14719 CVE-2018-14720 CVE-2018-14721 CVE-2018-19360  +12 more Upstream summary: It was discovered that Jackson Databind incorrectly handled deserialization. An attacker could possibly use this […]

Read more
How to Configure iptables Firewall Rules on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure iptables Firewall Rules on RHEL 8

Although firewalld ships as the default firewall manager on RHEL 8, some administrators prefer the well-known iptables command syntax for its long history, broad documentation, and deterministic rule ordering. RHEL 8 supports running iptables as a standalone service through the iptables-services package, which must be installed after disabling firewalld to avoid conflicts. This tutorial covers […]

Read more
Using the Kubescape Vulnerability Scan Tool — step-by-step Kubernetes tutorial on Progressive Robot

Using the Kubescape Vulnerability Scan Tool

Kubescape by Armosec is a powerful open-source tool for Kubernetes risk analysis, security compliance, and image vulnerabilities scanning. It can detect potential configuration issues, RBAC violations, and provides risk trend analysis. Improve your Kubernetes security with Kubescape.

Read more
Arch Linux — gajim — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — gajim — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201706-4 Related CVEs: CVE-2016-1037 Upstream summary: Type: information disclosure. Status: Fixed. Affected: 0.16.7-1. Fixed in: 0.16.8-1. Group: AVG-284. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]

Read more
CHAT