August 2020 - Page 3 of 69

Blueprint: How Ghost Migrated From Dedicated Servers to the cloud provider

• August 31, 2020
• Linux
• Comment off

This the cloud provider Blueprint article was written by Sebastian Gierlinger, a Senior DevOps Engineer at Ghost. It covers the steps that were taken to migrate the Ghost(Pro) infrastructure from dedicated servers to cloud servers. In each step, Sebastian will discuss the challenges that were faced, how each challenge was solved, and why each solution was chosen. He’ll also provide links to relevant resources that he found to be helpful.

Read more

How to Configure the APT Package Manager on Debian 10

• August 31, 2020
• Linux
• Comment off

Introduction Deploying configure the apt package manager 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 You […]

Read more

Ubuntu 14.04 LTS unattended-upgrades Stuck on apt Lock

• August 30, 2020
• Linux
• Comment off

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2026 📖 ~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 18.04 LTS – journald logs consume excessive disk space

• August 30, 2020
• Linux
• Comment off

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Ubuntu 18.04 LTS Ubuntu 18.04 Ubuntu 18.04.6 📖 ~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 […]

Read more

Ubuntu 16.04 — netqmail — multiple vulnerabilities (5 CVEs) — patch and remediation guide

• August 30, 2020
• Linux
• Comment off

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4621-1 Related CVEs: CVE-2005-1513 CVE-2005-1514 CVE-2005-1515 CVE-2020-3811 CVE-2020-3812 Upstream summary: It was discovered that netqmail did not properly handle certain input. Both remote and local attackers could use this vulnerability […]

Read more

Auditd backlog limit exceeded under heavy load

• August 30, 2020
• Tutorials
• Comment off

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

RHEL 8 – DNF Metadata Cache Corruption Breaks Updates

• August 30, 2020
• Linux
• Comment off

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 📖 ~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

Windows Server 2019 – WFP callout driver blocks RPC and domain traffic – Fix and Prevention

• August 30, 2020
• Tutorials
• Comment off

🟠 High   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: Windows Server 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 […]

Read more

How to Install Nagios on SLES 12

• August 30, 2020
• SUSE Linux Enterprise
• Comment off

Introduction This tutorial covers How to Install Nagios on SLES 12 on SLES 12. SLES 12 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 12 system is up to date: zypper refresh && […]

Read more

How to Configure Motif Applications on IBM AIX 7.1

• August 30, 2020
• IBM AIX
• Comment off

Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure motif applications on ibm aix 7.1 on IBM […]

Read more