DNS

Common Problems 115989

Ubuntu 26.04 LTS – initramfs build fails with missing storage modules

🟠 High   ⏱ 5–30 min  Last verified: 11 July 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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Common Problems 116121

Ubuntu 26.04 LTS – high CPU usage from Tracker Miner – Fix & Prevention

🟢 Low   ⏱ 5–30 min  Last verified: 11 July 2026 Affected versions: Ubuntu 26.04 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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Common Problems 116035

Ubuntu 26.04 LTS – Swap re-enabled unexpectedly and breaks kubelet policy – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 11 July 2026 Affected versions: Ubuntu 26.04 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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Common Problems 116133

Unattended Upgrades Hold Back Kernel Updates on Ubuntu 26.04 LTS

🟡 Medium   ⏱ 5–30 min  Last verified: 10 July 2026 Affected versions: 26.04 📖 ~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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How to Set Up Consul Service Mesh on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Set Up Consul Service Mesh on FreeBSD 15

Introduction FreeBSD 15 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up set up consul service mesh on FreeBSD 15 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux distribution. This […]

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How to Configure MariaDB Galera Cluster on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Configure MariaDB Galera Cluster on RHEL 9

MariaDB Galera Cluster is a synchronous multi-primary cluster for MariaDB/MySQL that provides true high availability with no single point of failure. Unlike standard primary-replica replication where only one node accepts writes and replicas are read-only, Galera Cluster allows writes to any node simultaneously — all nodes are always primary, always in sync, and always up-to-date. […]

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Common Problems 116082

Ubuntu 26.04 LTS – apt update fails with NO_PUBKEY repository signature errors – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 10 July 2026 Affected versions: Ubuntu 26.04 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 Install ArgoCD on RHEL 10 Kubernetes — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install ArgoCD on RHEL 10 Kubernetes

Introduction Setting up install argocd on rhel 10 kubernetes on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Install ArgoCD on RHEL 10 Kubernetes, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and how […]

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How to Install Portainer on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Install Portainer on FreeBSD 15

Introduction This guide explains how to Install Portainer on FreeBSD 15 on FreeBSD 15. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained privilege separation. […]

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FreeBSD 12 — dnsmasq — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — dnsmasq — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 10 July 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: dnsmasq — multiple vulnerabilities Related CVEs: CVE-2009-2957 CVE-2009-2958 CVE-2015-3294 CVE-2015-8899 CVE-2017-13704 CVE-2017-14491 CVE-2017-14492 CVE-2017-14493  +12 more Upstream summary: Simon Kelley reports: Today, 11th May 2026 CERT is releasing a set […]

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