DNS

SLES 15 — ldns — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — ldns — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 7 February 2020 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2020:0801-1 (see also SUSE bugzilla) Related CVEs: CVE-2017-1000231 CVE-2020-19860 CVE-2020-19861 CVE-2017-1000232 Upstream summary: A double-free vulnerability in parse.c in ldns 1.7.0 have unspecified impact and attack vectors. Table of contents Symptom & […]

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How to Set Up iSCSI Storage on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Set Up iSCSI Storage on Windows Server 2019

How to Set Up iSCSI Storage on Windows Server 2019 iSCSI (Internet Small Computer Systems Interface) is a protocol that encapsulates SCSI commands over TCP/IP networks, allowing servers to access remote storage as if it were a locally attached block device. Windows Server 2019 includes both an iSCSI Target Server (providing storage to clients) and […]

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How to Set Up Consul Service Mesh on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up Consul Service Mesh on Debian 9

Introduction This guide explains how to Set Up Consul Service Mesh on Debian 9 on Debian 9 Stretch. Debian Stretch uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 9 install with […]

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Common Problems 113501

Windows Server 2012 R2 — Workstation (LanmanWorkstation) authentication failures — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 6 February 2020 Affected versions: Windows Server 2012 R2 📖 ~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 […]

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How to Install Nginx on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install Nginx on Debian 10 (DEBIAN-10-2)

Introduction This guide explains how to Install Nginx on Debian 10 on Debian 10 Buster. Debian Buster uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 10 install with the standard repositories […]

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FreeBSD 12 — powerdns-devel — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — powerdns-devel — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 6 February 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: PowerDNS — Denial of Service Vulnerability Related CVEs: CVE-2012-0206 Upstream summary: The PowerDNS Team reports: Using well crafted UDP packets, one or more PowerDNS servers could be made to enter […]

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Common Problems 121481

Debian 9 – dpkg Interrupted State Blocks Package Operations – Full Recovery

🔴 Critical   ⏱ 5–30 min  Last verified: 5 February 2020 Affected versions: Debian 9 📖 ~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 118114

Ubuntu 18.04 intermittent DNS resolution failures

🟡 Medium   ⏱ 5–30 min  Last verified: 5 February 2020 📖 ~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 Configure Docker Resource Limits on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure Docker Resource Limits on Debian 10

Introduction Deploying configure docker resource limits on debian 10 on a Debian 10 Buster machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before you […]

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Common Problems 118054

Ubuntu 18.04 Snap applications fail to launch

🟡 Medium   ⏱ 5–30 min  Last verified: 4 February 2020 📖 ~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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