chris

Debian 11 — libxml-atom-perl — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libxml-atom-perl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 17 September 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-1102 Upstream summary: It was discovered that the XML::Atom Perl module before version 0.39 did not disable external entities when parsing XML from potentially untrusted sources. This may […]

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SLES 15 — apache-commons-compress — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — apache-commons-compress — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 17 September 2021 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2021:2612-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-35515 CVE-2021-35516 CVE-2021-35517 CVE-2021-36090 CVE-2019-12402 Upstream summary: When reading a specially crafted 7Z archive, the construction of the list of codecs that decompress an entry […]

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Oracle Linux 8 — grafana — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — grafana — vulnerability — patch and remediation guide (ELSA-2022-0001)

🟠 High   ⏱ 15–60 min  Last verified: 17 September 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-0001 Related CVEs: CVE-2021-44716 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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How to Monitor MySQL with Percona Monitoring and Management on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Monitor MySQL with Percona Monitoring and Management on RHEL 7

How to Monitor MySQL with Percona Monitoring and Management on RHEL 7 Percona Monitoring and Management (PMM) is a free, open-source platform for monitoring MySQL, MariaDB, PostgreSQL, and MongoDB. It combines Grafana dashboards, Prometheus metrics collection, and Query Analytics (QAN) into a single integrated UI. Unlike generic monitoring tools, PMM understands database internals and surfaces […]

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How To Build a Data Processing Pipeline Using Luigi in Python on Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

How To Build a Data Processing Pipeline Using Luigi in Python on Ubuntu 20.04

Luigi is a Python package that manages long-running _batch processing_, which is the automated running of data processing jobs on batches of items. Luigi allows you to define a data processing job as a set of dependent tasks. In this tutorial you will build a data processing pipeline to analyze the most common words from the most popular books on Project Gutenburg. You will build a pipeline using Luigi. You will use Luigi tasks, targets, dependencies, and parameters to build your pipeline.

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Oracle Linux 8 — linuxptp security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — linuxptp security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2021-4321)

🟡 Medium   ⏱ 10–30 min  Last verified: 16 September 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-4321 Related CVEs: CVE-2021-3571 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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FreeBSD 12 — py37-salt — multiple vulnerabilities (18 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py37-salt — multiple vulnerabilities (18 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 16 September 2021 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: salt — multiple vulnerabilities Related CVEs: CVE-2018-15750 CVE-2018-15751 CVE-2019-17361 CVE-2020-11651 CVE-2020-11652 CVE-2020-16846 CVE-2020-17490 CVE-2020-25592  +10 more Upstream summary: SaltStack reports multiple security vulnerabilities in Salt CVE-2021-3197: The Salt-API.s SSH client […]

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AlmaLinux 8 — libgovirt — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — libgovirt — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2021:1895 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Common Problems 118111

Ubuntu 18.04 MySQL InnoDB Crash Recovery Loop

🟡 Medium   ⏱ 5–30 min  Last verified: 16 September 2021 📖 ~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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How to Automate SLES 12 with Ansible — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Automate SLES 12 with Ansible

Introduction This tutorial covers How to Automate SLES 12 with Ansible on SLES 12. SLES 12 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Step 1 — Install Ansible zypper install -y ansible Step 2 — Configure […]

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