Learn to Load Balance Your High Traffic Sites
Is your app highly available? Do you know what happens to your site when your server goes down? Learn how load balancers can provide peace of mind and stability to your infrastructure.
Ubuntu 18.04 — libapache2-mod-auth-mellon — multiple vulnerabilities (4 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5069-1 Related CVEs: CVE-2021-3639 CVE-2019-13038 CVE-2019-3877 CVE-2019-3878 Upstream summary: It was discovered that mod-auth-mellon incorrectly filtered certain URLs. A remote attacker could possibly use this issue to perform an open […]
How to Manage Docker Images and Containers on RHEL 9
Efficient Docker image and container management is fundamental to maintaining a healthy container environment. Docker images accumulate on hosts — old base images, build cache layers, and unused intermediate images can consume tens of gigabytes of disk space if not managed regularly. Understanding the Docker image layer model is key: images consist of read-only layers […]
An Introduction to LVM Concepts, Terminology, and Operations
LVM, or Logical Volume Management, is a storage device management technology that gives users the power to pool and abstract the physical layout of component storage devices for easier and flexible administration. Utilizing the device mapper Linux kernel framework, the…
Oracle Linux 8 — lasso security and — enhancement update — new behaviour and fixes (ELSA-2021-4325)
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2021-4325 Related CVEs: CVE-2021-28091 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
Alpine Linux edge — libtirpc — vulnerability — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.3.2-r2 📖 ~4 min read • Source: Alpine secdb entry — libtirpc 1.3.2-r2 Related CVEs: CVE-2021-46828 Upstream summary: Alpine main repository for vedge ships libtirpc 1.3.2-r2 which addresses CVE-2021-46828. Table of contents Symptom & Impact Environment […]
Ubuntu 14.04 LTS Network Interface Fails After ifupdown Edit
🟠 High ⏱ 5–30 min Last verified: 19 May 2026 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 & […]
FreeBSD 13 — py27-imaging — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: py-imaging, py-pillow — Buffer overflow in PCD decoder Related CVEs: CVE-2016-0775 Upstream summary: The Pillow maintainers report: In all versions of Pillow, dating back at least to the last PIL […]
Ubuntu 16.04 LTS Expired GPG Keys Break apt Repositories
🟡 Medium ⏱ 5–30 min Last verified: 20 May 2026 Affected versions: 16.04 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 & […]
Modular Data Center Approach: Fast-Track AI Growth in Months
A modular data center approach compresses AI build timelines from years to months. Here is where the savings come from, and why grid power is still the real constraint.
