Debian

Common Problems 121023

Debian 10: DNS resolution breaks after resolv.conf overwrite

🟠 High   ⏱ 5–30 min  Last verified: 28 June 2020 Affected versions: Debian 10 📖 ~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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Debian 10 — awl — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — awl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 June 2020 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-11728 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Debian 10 — simplesamlphp — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — simplesamlphp — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 June 2020 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-3465 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Common Problems 121092

Debian 10 – DNS resolution fails with systemd-resolved misconfiguration

🟠 High   ⏱ 5–30 min  Last verified: 27 June 2020 Affected versions: Debian 10 📖 ~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 121004

Debian 10 – unattended-upgrades lock prevents manual apt operations

🟡 Medium   ⏱ 5–30 min  Last verified: 26 June 2020 Affected versions: Debian 10 📖 ~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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Initial Server Setup with Debian 9 — step-by-step Linux tutorial on Progressive Robot

Initial Server Setup with Debian 9

When you first create a new Debian 9 server, there are a few configuration steps that you should take early on as part of the basic setup. This will increase the security and usability of your server and will give you a solid foundation for subsequent…

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Common Problems 121145

Debian 10 Hostname Resolution Warning sudo unable to resolve host

🟢 Low   ⏱ 5–30 min  Last verified: 25 June 2020 Affected versions: Debian 10 📖 ~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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Debian 9 — atftp — vulnerability — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — atftp — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 23 June 2020 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-11365 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Debian 10 — exim4 — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — exim4 — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 22 June 2020 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-13917 CVE-2019-15846 CVE-2019-16928 CVE-2020-12783 CVE-2020-28007 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative […]

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