Linux

Sysadmin eBook: Server zum Laufen bringen — step-by-step Linux tutorial on Progressive Robot

Sysadmin eBook: Server zum Laufen bringen

<$>[note] [label Das komplette eBook herunterladen!] Server zum Laufen bringen: Ein praktischer Leitfaden für Systemadministrator eBook im EPUB-Format [Server zum Laufen bringen: Ein praktischer Leitfaden für Systemadministrator eBook im…

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How To Use RVM to Manage Ruby Installations and Environments on a VPS — step-by-step Linux tutorial on Progressive Robot

How To Use RVM to Manage Ruby Installations and Environments on a VPS

RVM, the Ruby Version Manager, is an excellent tool for configuring and installing independent Ruby environments on a single machine. You can use this utility to compartmentalize Ruby installations and their associated software in order to develop in a clean environment. This guide will cover the basic usage of RVM on a Linux VPS.

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openSUSE Tumbleweed — ikiwiki — multiple vulnerabilities (14 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — ikiwiki — multiple vulnerabilities (14 CVEs) — 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-2016:1261-1 (see also SUSE bugzilla) Related CVEs: CVE-2016-3714 CVE-2008-0169 CVE-2009-2944 CVE-2011-0428 CVE-2011-1401 CVE-2012-0220 CVE-2014-1572 CVE-2016-10026  +6 more Upstream summary: The (1) EPHEMERAL, (2) HTTPS, (3) MVG, (4) MSL, (5) TEXT, (6) SHOW, […]

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Ubuntu 14.04 — python-gnupg — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — python-gnupg — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 September 2019 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4839-1 Related CVEs: CVE-2018-12020 CVE-2019-6690 Upstream summary: Marcus Brinkmann discovered that python-gnupg improperly handled certain command line parameters. A remote attacker could use this to spoof the output of python-gnupg […]

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Arch Linux — lib32-wavpack — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — lib32-wavpack — multiple vulnerabilities (3 CVEs) — 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-201802-13 Related CVEs: CVE-2018-7254 CVE-2018-7253 CVE-2018-6767 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 4.80.0-1. Fixed in: 5.1.0-2. Group: AVG-634. Table of contents Symptom & Impact Environment & Reproduction […]

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

SLES 12 — librsvg — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 9 September 2019 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2018:1288-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-1000041 CVE-2019-20446 CVE-2011-3146 CVE-2013-1881 CVE-2017-11464 Upstream summary: GNOME librsvg version before commit c6ddf2ed4d768fd88adbea2b63f575cd523022ea contains a Improper input validation vulnerability in rsvg-io.c that can result in […]

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Common Problems 119089

Ubuntu 14.04 LTS UFW Rules Unexpectedly Blocking Outbound Traffic

🟡 Medium   ⏱ 5–30 min  Last verified: 8 September 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 & Cross-Refs References & Further […]

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Common Problems 119031

Ubuntu 14.04 LTS Apache returns 503 Service Unavailable under peak load

🟠 High   ⏱ 5–30 min  Last verified: 8 September 2019 Affected versions: 14.04 📖 ~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 […]

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Common Problems 118492

Ubuntu 16.04 Cloud-Init Rewrites Network Settings Unexpectedly

🟡 Medium   ⏱ 5–30 min  Last verified: 8 September 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 & Cross-Refs References & Further […]

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