IT, Cloud & DevOps Blog

Oracle Linux 8 — http-parser — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — http-parser — vulnerability — patch and remediation guide (ELSA-2020-0708)

🟠 High   ⏱ 15–60 min  Last verified: 14 November 2019 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-0708 Related CVEs: CVE-2019-15605 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

Read more
Common Problems 118573

Ubuntu 16.04 LTS – systemd service enters restart loop – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 13 November 2019 Affected versions: Ubuntu 16.04 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 […]

Read more
How to Configure Apache with mod_pagespeed on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Configure Apache with mod_pagespeed on SLES 15

Introduction This tutorial covers How to Configure Apache with mod_pagespeed on SLES 15 on SLES 15. SLES 15 (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 15 system is up to date: zypper […]

Read more
Common Problems 115522

Dracut emergency shell after storage changes

🟡 Medium   ⏱ 5–30 min  Last verified: 13 November 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 […]

Read more
How to Use lsdev and lscfg for Device Inventory on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Use lsdev and lscfg for Device Inventory on IBM AIX 7.1

Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use lsdev and lscfg for device inventory on ibm […]

Read more
OpenBSD 7.6 — expat — errata 011_expat — reliability fix — syspatch and remediation — diagnosis and fix on OpenBSD 7.6

OpenBSD 7.6 — expat — errata 011_expat — reliability fix — syspatch and remediation

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: OpenBSD 7.6 📖 ~4 min read  •  Source: OpenBSD 7.6 errata 011_expat Errata topic: Reliability: expat (All architectures) Issued: April 1, 2025 Upstream summary: In libexpat fix regression of behavior introduced by previous errata. Table of contents Symptom & Impact Environment & […]

Read more
How to Use smit fastpath Shortcuts on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Use smit fastpath Shortcuts on IBM AIX 7.2

Introduction IBM AIX 7.2 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use smit fastpath shortcuts on ibm aix 7.2 on […]

Read more
FreeBSD 12 — nettle — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — nettle — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 13 November 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: nettle 3.7.2 — fix serious ECDSA signature verify bug Upstream summary: Niels Möller reports: I've prepared a new bug-fix release of Nettle, a low-level cryptographics library, to fix a serious […]

Read more
How to Configure PHP-FPM with Nginx on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Configure PHP-FPM with Nginx on FreeBSD 12

Introduction How to Configure PHP-FPM with Nginx on FreeBSD 12 is a core administration task for any FreeBSD 12 server operator. FreeBSD 12 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet […]

Read more
CHAT