Operations

How to Use Amanda for Enterprise Backup on SLES 12 — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Use Amanda for Enterprise Backup on SLES 12

Introduction This tutorial covers How to Use Amanda for Enterprise Backup on SLES 12 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. Prerequisites Ensure your SLES 12 system is up to date: […]

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FreeBSD 12 — mumble — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — mumble — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 February 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: mumble — multiple vulnerabilities Related CVEs: CVE-2014-0044 CVE-2014-0045 Upstream summary: Mumble reports: SVG images with local file references could trigger client DoS The Mumble client did not properly HTML-escape some […]

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Common Problems 118114

Ubuntu 18.04 intermittent DNS resolution failures

🟡 Medium   ⏱ 5–30 min  Last verified: 5 February 2020 📖 ~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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FreeBSD 12 — websvn — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — websvn — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 5 February 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: websvn — reflected cross-site scripting Related CVEs: CVE-2008-5918 CVE-2008-5919 CVE-2009-0240 CVE-2013-6892 CVE-2016-2511 Upstream summary: Sebastien Delafond reports: Jakub Palaczynski discovered that websvn, a web viewer for Subversion repositories, does not […]

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How to Configure Docker Resource Limits on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure Docker Resource Limits on Debian 10

Introduction Deploying configure docker resource limits on debian 10 on a Debian 10 Buster machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before you […]

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Debian 9 — dosbox — vulnerability — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — dosbox — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 February 2020 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-7165 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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Ubuntu 14.04 — freeimage — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — freeimage — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 5 February 2020 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6586-1 Related CVEs: CVE-2019-12211 CVE-2019-12213 CVE-2020-21427 CVE-2020-21428 CVE-2020-22524 CVE-2016-5684 Upstream summary: It was discovered that FreeImage incorrectly handled certain memory operations. If a user were tricked into opening a crafted […]

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Ubuntu 14.04 — python-urllib3 — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — python-urllib3 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 February 2020 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-3990-2 Related CVEs: CVE-2019-11236 Upstream summary: USN-3990-1 fixed a vulnerability in urllib3. This update provides the corresponding update for Ubuntu 14.04 ESM. Original advisory details: It was discovered that urllib3 […]

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Oracle Linux 8 — maven:3.5 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — maven:3.5 — vulnerability — patch and remediation guide (ELSA-2022-1861)

🟡 Medium   ⏱ 10–30 min  Last verified: 5 February 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-1861 Related CVEs: CVE-2020-13956 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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Common Problems 118054

Ubuntu 18.04 Snap applications fail to launch

🟡 Medium   ⏱ 5–30 min  Last verified: 4 February 2020 📖 ~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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