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Oracle Linux 8 — gcc — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — gcc — vulnerability — patch and remediation guide (ELSA-2025-1301)

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-1301 Related CVEs: CVE-2020-11023 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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The substring() function in R - Things to know — step-by-step DevOps tutorial on Progressive Robot

The substring() function in R – Things to know

URL: https://www.progressiverobot.com/substring-function-in-r/ Substring() function in R is widely used to either extract the characters present in the data or to manipulate the data. You can easily extract the required characters from a string and also replace the values in a string. Hello folks, hope you are doing good. Today let's focus on the substing function […]

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Cara Menginstal dan Menyiapkan Laravel dengan Docker Compose pada Ubuntu 20.04 — step-by-step Docker tutorial on Progressive Robot

Cara Menginstal dan Menyiapkan Laravel dengan Docker Compose pada Ubuntu 20.04

Kontainerisasi aplikasi mengacu pada suatu proses adaptasi aplikasi dan komponennya dengan tujuan agar dapat menjalankannya dalam lingkungan ringan yang dikenal sebagai kontainer. Lingkungan tersebut terisolasi dan dapat dibuang, serta dapat dimanfaatkan lebih lanjut untuk pengembangan, pengujian, dan penyebaran aplikasi hingga produksi. Dalam panduan ini, kita akan menggunakan Docker Compose untuk melakukan kontainerisasi aplikasi Laravel sebagai pengembangan pada Ubuntu 20.04.

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How to Install Elasticsearch 8 on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install Elasticsearch 8 on RHEL 9

Elasticsearch is a distributed, RESTful search and analytics engine built on Apache Lucene. It stores data as JSON documents in indices and provides near-real-time full-text search, log aggregation, metrics analysis, and complex aggregation queries through a simple HTTP/JSON API. Elasticsearch is the core component of the Elastic Stack (ELK Stack) — Elasticsearch stores and searches […]

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Oracle Linux 8 — dnsmasq — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — dnsmasq — security and stability fixes — required update (ELSA-2022-7633)

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-7633 Related CVEs: CVE-2022-0934 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Alpine Linux edge — lynx — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — lynx — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 2.8.9_p1-r3 📖 ~4 min read  •  Source: Alpine secdb entry — lynx 2.8.9_p1-r3 Related CVEs: CVE-2021-38165 Upstream summary: Alpine main repository for vedge ships lynx 2.8.9_p1-r3 which addresses CVE-2021-38165. Table of contents Symptom & Impact Environment […]

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Common Problems 122622

Swap Exhaustion Triggers OOM-Like Instability

🟠 High   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: FreeBSD 14 📖 ~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 121594

Debian 9 – DNS resolution fails with systemd-resolved misconfiguration

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 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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