Ubuntu 16.04

Common Problems 118461

Ubuntu 16.04 LTS – /boot partition full blocks kernel upgrades – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 10 October 2019 Affected versions: Ubuntu 16.04 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 […]

Read more
Common Problems 118457

Ubuntu 16.04 LTS apt reports Hash Sum mismatch

🟡 Medium   ⏱ 5–30 min  Last verified: 8 October 2019 📖 ~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 […]

Read more
Ubuntu 16.04 — libapreq2 — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — libapreq2 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 8 October 2019 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5041-1 Related CVEs: CVE-2019-12412 Upstream summary: It was discovered that libapreq2 did not properly sanitize the Content-Type field in certain crafted HTTP requests. An attacker could possibly use the vulnerability […]

Read more
Common Problems 118611

Ubuntu 16.04 LTS – severe time drift causes TLS and token failures – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 4 October 2019 Affected versions: Ubuntu 16.04 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 […]

Read more
Common Problems 118629

Ubuntu 16.04 LTS – SSL certificate validation fails due to outdated CA store – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 1 October 2019 Affected versions: Ubuntu 16.04 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 […]

Read more
Common Problems 118570

Ubuntu 16.04 webcam not working in video apps

🟡 Medium   ⏱ 5–30 min  Last verified: 1 October 2019 📖 ~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 […]

Read more
How To Use Duplicity with GPG to Back Up Data to object storage — step-by-step Linux tutorial on Progressive Robot

How To Use Duplicity with GPG to Back Up Data to object storage

Duplicity is a command-line utility written in Python that produces encrypted tar volumes for storage on a local or remote repository. It uses the GNU Privacy Guard (GPG) to encrypt and sign its archives and the rsync algorithm to create incremental, space-efficient backups. In this tutorial, we will install Duplicity and go over how to back up project data to object storage.

Read more
Ubuntu 16.04 — mercurial — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — mercurial — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 September 2019 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5102-2 Related CVEs: CVE-2019-3902 CVE-2018-17983 Upstream summary: USN-5102-1 fixed vulnerabilities in Mercurial. This update provides the corresponding updates for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: It […]

Read more
CHAT