ubuntu

How To Install MoinMoin with Nginx on Ubuntu 14.04 — step-by-step Linux tutorial on Progressive Robot

How To Install MoinMoin with Nginx on Ubuntu 14.04

MoinMoin is a high performance open source Wiki Engine that is written in Python. It provides a feature-rich wiki that has a large community of users, and is very customizable and easy to use. MoinMoin is used by several organizations for their public wikis, such as Ubuntu,…

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Как установить Git в Ubuntu 14.04 — step-by-step Linux tutorial on Progressive Robot

Как установить Git в Ubuntu 14.04

Система контроля версий является неотъемлемым инструментом в современной разработке программного обеспечения. Системы контроля версий позволяют Вам следить за состоянием ПО на уровне исходного кода. Вы можете отслеживать изменения, откатываться к предыдущим версиям и создавать…

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Common Problems 118996

Ubuntu 14.04 LTS – SSH sessions reset unexpectedly under load – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Ubuntu 14.04 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 118605

Ubuntu 16.04 LTS iptables rules lost after reboot

🟠 High   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: 16.04 📖 ~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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Common Problems 115932

Ubuntu 26.04 LTS – netplan apply does not update DNS settings – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 19 May 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 20.04 — squashfs-tools — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — squashfs-tools — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5078-3 Related CVEs: CVE-2021-41072 CVE-2021-40153 Upstream summary: USN-5078-1 fixed a vulnerability in Squashfs-Tools. That update was incomplete and could still result in Squashfs-Tools mishandling certain malformed SQUASHFS files. This update […]

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Ubuntu 20.04 — linux-oem-5.13 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — linux-oem-5.13 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5265-1 Related CVEs: CVE-2020-27820 CVE-2021-3640 CVE-2021-3752 CVE-2021-3772 CVE-2021-4001 CVE-2021-4090 CVE-2021-4093 CVE-2021-4202  +12 more Upstream summary: Jeremy Cline discovered a use-after-free in the nouveau graphics driver of the Linux kernel during […]

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Common Problems 119150

Ubuntu 14.04 LTS Redis service refuses connections due to overcommit settings

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: 14.04 📖 ~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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