Generic Functions in Flow
A quick post on using generic functions in Flow, using the concept of generics, but applied to functions.
How to Install and Configure SQLite on RHEL 8
SQLite is a serverless, file-based relational database engine that requires no installation of a separate server process and no ongoing administration. It stores an entire database — tables, indexes, and data — in a single cross-platform file, making it ideal for development environments, embedded applications, configuration stores, and lightweight production workloads that do not need […]
Debian 10 – sudo Stops Working Due to Broken Permissions – Emergency Repair
🔴 Critical ⏱ 5–30 min Last verified: 16 May 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 & […]
FreeBSD 12 — php5-mysqli — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 16 May 2020 Affected versions: FreeBSD 12 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: mysql — SSL Downgrade Related CVEs: CVE-2015-3152 Upstream summary: Duo Security reports: Researchers have identified a serious vulnerability in some versions of Oracle’s MySQL database product that allows an attacker […]
Ubuntu 20.04 LTS Nginx Fails to Start Due to Port 80 Conflict
🟡 Medium ⏱ 5–30 min Last verified: 16 May 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 […]
FreeBSD 12 — foreman-proxy — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 16 May 2020 Affected versions: FreeBSD 12 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: foreman-proxy SSL verification issue Related CVEs: CVE-2014-3691 Upstream summary: Foreman Security reports: The smart proxy when running in an SSL-secured mode permits incoming API calls to any endpoint without requiring, […]
crond Service Not Running Scheduled Jobs
🟡 Medium ⏱ 5–30 min Last verified: 16 May 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 […]
FreeBSD 12 — mDNSResponder — security advisory — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 16 May 2020 Affected versions: FreeBSD 12 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: mDNSResponder — corrupted stack crash when parsing bad resolv.conf Upstream summary: Juli Mallett reports: mdnsd will crash on some systems with a corrupt stack and once that's fixed it will […]
How to Deploy a Rust Web Application on SLES 15
Introduction This tutorial covers How to Deploy a Rust Web Application on SLES 15 on SLES 15. SLES 15 (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 15 system is up to date: […]
Windows Server 2019 – Hyper-V live migration fails with authentication errors – Fix & Prevention
🟠 High ⏱ 5–30 min Last verified: 16 May 2020 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 […]
