ubuntu

Ubuntu 14.04 — python3.4 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — python3.4 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 17 July 2026 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8018-2 Related CVEs: CVE-2025-15367 CVE-2025-15366 CVE-2026-0865 https://bugs.launchpad.net/bugs/2143706 CVE-2025-15282 CVE-2026-0672 CVE-2025-13837 CVE-2025-11468  +12 more Upstream summary: USN-8018-1 fixed vulnerabilities in python3. That update introduced regressions. The patches for CVE-2025-15366 and CVE-2025-15367 […]

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How to Set Up a Private Docker Registry on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Use Docker Volumes and Bind Mounts on Ubuntu 26.04

Docker provides two main mechanisms for persisting and sharing data: named volumes (managed by Docker) and bind mounts (host filesystem paths). Understanding the differences and use-cases helps you choose the right storage strategy for your containers. This guide covers both on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS […]

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How to Configure Nginx Server Blocks (Virtual Hosts) on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Install Apache on Ubuntu 26.04

Apache HTTP Server is one of the most widely used web servers in the world. Its modular architecture supports a huge range of functionality including URL rewriting, authentication, and SSL. This guide installs Apache on Ubuntu 26.04 LTS and configures the firewall. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS server A […]

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Common Problems 115996

Ubuntu 26.04 LTS – Timesync drift causes Kerberos and TLS failures – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 16 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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Ubuntu 22.04 — ntfs-3g — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — ntfs-3g — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 16 July 2026 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8192-1 Related CVEs: CVE-2023-52890 CVE-2026-40706 CVE-2022-40284 CVE-2021-46790 CVE-2022-30783 CVE-2022-30784 CVE-2022-30785 CVE-2022-30786  +3 more Upstream summary: Jeffrey Bencteux discovered that NTFS-3G incorrectly handled certain UTF-8 sequences. An attacker could use this […]

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Ubuntu 18.04 — kmod — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — kmod — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 July 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8226-2 Related CVEs: CVE-2026-31431 Upstream summary: USN-8226-1 added a mitigation to kmod to disable loading the algif_aead module. This update adds the same mitigation to Ubuntu 14.04 LTS, Ubuntu 16.04 […]

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How to Secure MySQL 9 on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Install PostgreSQL 17 on Ubuntu 26.04

PostgreSQL is a powerful, open-source object-relational database system known for its reliability, extensibility, and standards compliance. PostgreSQL 17 brings performance improvements, new SQL features, and enhanced logical replication. This guide installs it on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS server A user with sudo privileges Step 1 […]

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How to Set Up a DNS Server with Bind9 on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Install and Configure Traefik Reverse Proxy on Ubuntu 26.04

Traefik is a modern, cloud-native reverse proxy and load balancer designed for microservices. It auto-discovers services from Docker labels, Kubernetes ingress, and other providers, and automatically provisions Let’s Encrypt TLS certificates. This guide installs Traefik v3 on Ubuntu 26.04 LTS with Docker. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS with Docker […]

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How to Configure Unattended Upgrades on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Add and Delete Users on Ubuntu 26.04

Managing user accounts is a fundamental Linux administration task. Ubuntu 26.04 LTS provides the adduser, usermod, and deluser commands to create, modify, and remove accounts safely. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS server or desktop A user with sudo privileges Basic familiarity with the Linux terminal Step 1 – Add […]

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Ubuntu 16.04 — linux-oracle — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — linux-oracle — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 15 July 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8267-1 Related CVEs: CVE-2024-27388 CVE-2024-46777 CVE-2024-46816 CVE-2024-49938 CVE-2024-50008 CVE-2024-50142 CVE-2025-21735 CVE-2025-37849  +12 more Upstream summary: Qualys discovered that several vulnerabilities existed in the AppArmor Linux kernel Security Module (LSM). An […]

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