ubuntu

Ubuntu 14.04 — netatalk — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — netatalk — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 13 January 2025 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7347-1 Related CVEs: CVE-2024-38439 CVE-2024-38440 CVE-2024-38441 CVE-2021-31439 CVE-2022-0194 CVE-2022-23121 CVE-2022-23122 CVE-2022-23123  +4 more Upstream summary: It was discovered that Netatalk did not properly manage memory under certain circumstances. A remote […]

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How to Install Vagrant and VirtualBox on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Set Up ArgoCD on Ubuntu 24.04

ArgoCD is a declarative GitOps continuous delivery tool for Kubernetes. It synchronises Kubernetes cluster state with Git repositories automatically. This guide installs ArgoCD on a Kubernetes cluster running on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server A running Kubernetes cluster (kubeadm or k3s) kubectl configured Helm installed […]

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Common Problems 116893

Ubuntu 22.04 Wi-Fi disconnects or fails to reconnect

🟡 Medium   ⏱ 5–30 min  Last verified: 12 January 2025 📖 ~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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How to Set Up Two-Factor Authentication (2FA) for SSH on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Configure iptables Firewall Rules on Ubuntu 24.04

iptables is the classic Linux firewall utility that provides fine-grained packet filtering and NAT. While Ubuntu uses UFW as a front-end by default, understanding iptables rules is essential for advanced network control on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server A user with sudo privileges Basic understanding […]

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Ubuntu 24.04 — aom — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — aom — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 January 2025 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6815-1 Related CVEs: CVE-2024-5171 Upstream summary: Xiantong Hou discovered that AOM did not properly handle certain malformed media files. If an application using AOM opened a specially crafted file, a […]

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How to Use Python Virtual Environments on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Deploy a Django App with Gunicorn and Nginx on Ubuntu 24.04

Django is a high-level Python web framework with a batteries-included philosophy. This guide deploys a Django application in production on Ubuntu 24.04 LTS using Gunicorn as the WSGI server and Nginx as the reverse proxy. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server Python 3.12 and pip installed Nginx installed A […]

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Ubuntu 20.04にNFSマウントをセットアップする方法 — step-by-step Linux tutorial on Progressive Robot

Ubuntu 20.04にNFSマウントをセットアップする方法

このガイドでは、NFS機能に必要なコンポーネントをUbuntu 20.04にインストールする方法、サーバーとクライアントそれぞれのNFSマウントの設定方法、NFSリモート共有をマウント・アンマウントする方法について説明します。

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Common Problems 117005

Ubuntu 22.04 LTS – systemd service fails due to missing environment file – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 11 January 2025 Affected versions: Ubuntu 22.04 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 116585

Ubuntu 24.04 LTS – kubeadm init fails preflight due to swap enabled – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 11 January 2025 Affected versions: Ubuntu 24.04 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 116455

Ubuntu 24.04 LTS – root filesystem full causes apt and service failures – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 11 January 2025 Affected versions: Ubuntu 24.04 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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