Logging Monitoring

How to Configure ACLs on Ext4 File Systems on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure ACLs on Ext4 File Systems on Debian 10

Introduction How to Configure ACLs on Ext4 File Systems 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 […]

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Ubuntu 16.04 — libseccomp — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — libseccomp — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 15 July 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4001-1 Related CVEs: CVE-2019-9893 Upstream summary: Jann Horn discovered that libseccomp did not correctly generate 64-bit syscall argument comparisons with arithmetic operators (LT, GT, LE, GE). An attacker could use […]

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Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2020-5848)

🟠 High   ⏱ 15–60 min  Last verified: 15 July 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-5848 Related CVEs: CVE-2020-16166 CVE-2020-24394 CVE-2020-10751 CVE-2020-12771 CVE-2020-14331 CVE-2020-10781 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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How to Install Kotlin on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install Kotlin on Debian 10

Introduction How to Install Kotlin 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 […]

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openSUSE Tumbleweed — python36-pymisp — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — python36-pymisp — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2019:2131-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-11324 Upstream summary: The urllib3 library before 1.24.2 for Python mishandles certain cases where the desired set of CA certificates is different from the OS […]

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Common Problems 120977

Debian 10 Release File Is Not Valid Yet During apt update

🟠 High   ⏱ 5–30 min  Last verified: 14 July 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 112936

Windows Server 2016 Disk Queue Length Sustained Above Threshold on VM Hosts – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 14 July 2020 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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FreeBSD 12 — py39-lmdb — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py39-lmdb — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 14 July 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py39-lmdb — multiple vulnerabilities Related CVEs: CVE-2019-16224 CVE-2019-16225 CVE-2019-16226 CVE-2019-16227 CVE-2019-16228 Upstream summary: TeamSeri0us reports: An issue was discovered in py-lmdb 0.97. For certain values of md_flags, mdb_node_add does not […]

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

How to Install Deno on RHEL 8

Deno is a modern, secure runtime for JavaScript and TypeScript built on V8 and Rust. Unlike Node.js, Deno ships TypeScript support out of the box, enforces an explicit permissions model that prevents scripts from accessing files or the network without your consent, and bundles a formatter, linter, and test runner in a single executable. On […]

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