Operations

Common Problems 121478

Disk Full in /var Causing Service Outages

🔴 Critical   ⏱ 5–30 min  Last verified: 19 May 2026 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 & […]

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Common Problems 117979

Ubuntu 18.04 LTS Cloud-Init Rewrites Network Settings

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: 18.04 LTS 📖 ~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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How to Configure Software RAID on SLES 12 — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Configure Software RAID on SLES 12

Introduction This tutorial covers How to Configure Software RAID 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: zypper refresh […]

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openSUSE Tumbleweed — horde5-imp — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — horde5-imp — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2012:0287-1 (see also SUSE bugzilla) Related CVEs: CVE-2012-0791 CVE-2012-0909 Upstream summary: Multiple cross-site scripting (XSS) vulnerabilities in Horde IMP before 5.0.18 and Horde Groupware Webmail Edition before 4.0.6 allow remote attackers to […]

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openSUSE Tumbleweed — postgresql — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — postgresql — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2017:3107-1 (see also SUSE bugzilla) Related CVEs: CVE-2017-14798 Upstream summary: A race condition in the postgresql init script could be used by attackers able to access the postgresql account to escalate their […]

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FreeBSD 12 — freexl — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — freexl — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Multiple exploitable heap-based buffer overflow vulnerabilities exists in FreeXL 1.0.3 Related CVEs: CVE-2015-2776 CVE-2017-2923 CVE-2017-2924 Upstream summary: Cisco TALOS reports: An exploitable heap based buffer overflow vulnerability exists in the […]

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How to Configure Local Security Policy on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure Local Security Policy on Windows Server 2012 R2

How to Configure Local Security Policy on Windows Server 2012 R2 The Local Security Policy on Windows Server 2012 R2 is the foundation of standalone server security configuration. It governs password policies, account lockout thresholds, audit settings, user rights assignments, and security options—all without requiring Active Directory or Group Policy infrastructure. Even in domain environments, […]

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FreeBSD 12 — linux-blackdown-jdk — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — linux-blackdown-jdk — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: jdk/jre — Applet Caching May Allow Network Access Restrictions to be Circumvented Related CVEs: CVE-2004-1029 CVE-2005-1080 CVE-2007-5232 Upstream summary: SUN reports: A vulnerability in the Java Runtime Environment (JRE) with […]

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FreeBSD 12 — php56-xsl — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — php56-xsl — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: php — multiple vulnerabilities Related CVEs: CVE-2015-6834 CVE-2015-6835 CVE-2015-6836 CVE-2015-6837 CVE-2015-6838 Upstream summary: PHP reports: Core: Fixed bug #70172 (Use After Free Vulnerability in unserialize()). Fixed bug #70219 (Use after […]

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How to Install Packer for Machine Image Automation on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install Packer for Machine Image Automation on RHEL 8

Packer, created by HashiCorp, is an open-source tool that automates the creation of identical machine images for multiple platforms from a single source configuration. Whether you need an AWS AMI, a QEMU disk image for local testing, or a VMware template, Packer lets you define the entire build in code using HCL2 templates. In this […]

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