How to Get Started with FreeBSD
FreeBSD is a secure, high performance operating system that is suitable for a variety of server roles. In this guide, we will cover some basic information about how to get started with a server running FreeBSD 11.2.
A GraphQL SDL Reference
Here’s a quick and dirty reference for the GraphQL Schema Definition Language (SDL), which gives us a succinct syntax to define your GraphQL schemas.
How to Configure Security Compliance Baselines on Windows Server 2012 R2
How to Configure Security Compliance Baselines on Windows Server 2012 R2 Microsoft’s Security Compliance Toolkit (SCT) provides pre-built, tested Group Policy baselines for Windows Server 2012 R2 that align with both Microsoft’s own security recommendations and industry frameworks such as CIS and NIST. Rather than building a security baseline from scratch, the SCT gives you […]
Ubuntu 14.04 LTS repository 404 errors after end-of-life
🟡 Medium ⏱ 5–30 min Last verified: 18 August 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 […]
Ubuntu 14.04 LTS apt repositories return 404 after EOL
🟠 High ⏱ 5–30 min Last verified: 18 August 2019 Affected versions: 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 & […]
How to Configure the APT Package Manager on Debian 9
Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up configure the apt package manager on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step carefully […]
Chronyd Time Drift Causing TLS and Repository Failures
🟡 Medium ⏱ 5–30 min Last verified: 18 August 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 […]
Ubuntu 18.04 — pango1.0 — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 18 August 2019 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read • Source: Ubuntu Security Notice USN-3750-1 Related CVEs: CVE-2018-15120 Upstream summary: Jeffrey M. discovered that Pango incorrectly handled certain files. An attacker could possibly use this issue to cause a denial of service. Table of […]
openSUSE Tumbleweed — libykcs11 — multiple vulnerabilities (2 CVEs) — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE advisory openSUSE-SU-2018:2623-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-14779 CVE-2018-14780 Upstream summary: A buffer overflow issue was discovered in the Yubico-Piv 1.5.0 smartcard driver. The file lib/ykpiv.c contains the following code in the […]
How to Configure PowerVS Network Connectivity on IBM AIX 7.2
Introduction IBM AIX 7.2 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 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure powervs network connectivity on ibm aix 7.2 on […]
