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How To Configure an OrientDB Cluster on Ubuntu 16.04 — step-by-step Linux tutorial on Progressive Robot

How To Configure an OrientDB Cluster on Ubuntu 16.04

OrientDB is a multi-model NoSQL database with support for graph and document databases. It is a Java application and can run on any operating system. It’s also fully ACID-complaint with support for multi-master clustering and replication, allowing easy horizontal scaling. In this tutorial, you will set up a three-node cluster with two master nodes and one replica node using the community edition of OrientDB.

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How to Install Docker Engine on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install Docker Engine on RHEL 9

Docker Engine is the industry-standard container platform that packages applications and their dependencies into portable, isolated containers. A Docker container bundles the application code, runtime, libraries, and configuration into a single image that runs identically on any Linux host with Docker installed, eliminating the “it works on my machine” problem. RHEL 9 does not include […]

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

openSUSE Tumbleweed — cfitsio — vulnerability — 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-2018:1038-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-1000166 Upstream summary: DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2018-3848 and CVE-2018-3849. Reason: This candidate is a reservation duplicate of CVE-2018-3848 and CVE-2018-3849. Notes: […]

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Common Problems 116079

Ubuntu 26.04 LTS – ext4 filesystem remounts read-only under I/O pressure

🟠 High   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: Ubuntu 26.04 LTS Ubuntu 26.04 Ubuntu 26.04.1 📖 ~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 […]

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Arch Linux — file — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — file — multiple vulnerabilities (5 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-202001-2 Related CVEs: CVE-2019-18218 CVE-2019-8907 CVE-2019-8906 CVE-2019-8905 CVE-2019-8904 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 5.37-1. Fixed in: 5.38-1. Group: AVG-1083. Table of contents Symptom & Impact Environment […]

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How to Configure Docker Overlay Networking on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure Docker Overlay Networking on Debian 9

Introduction Deploying configure docker overlay networking on debian 9 on a Debian 9 Stretch 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 Ensure Debian […]

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FreeBSD 12 — ocaml — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — ocaml — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: OCaml — Multiple Security Vulnerabilities Related CVEs: CVE-2015-8869 Upstream summary: MITRE reports: OCaml before 4.03.0 does not properly handle sign extensions, which allows remote attackers to conduct buffer overflow attacks […]

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Common Problems 115597

SELinux File Context Drift After Manual Copy

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2026 📖 ~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 — ru-openoffice — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — ru-openoffice — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: openoffice — DOC document heap overflow vulnerability Related CVEs: CVE-2004-0752 CVE-2005-0941 Upstream summary: AD-LAB reports that a heap-based buffer overflow vulnerability exists in OpenOffice's handling of DOC documents. When reading […]

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