How To Create a Custom Validator for Reactive Forms in Angular
Learn how to create your own validator functions when working with reactive forms in Angular.
Alpine Linux 3.18 — traceroute — vulnerability — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 2.1.3-r0 📖 ~4 min read • Source: Alpine secdb entry — traceroute 2.1.3-r0 Related CVEs: CVE-2023-46316 Upstream summary: Alpine community repository for vv3.18 ships traceroute 2.1.3-r0 which addresses CVE-2023-46316. Table of contents Symptom & Impact Environment […]
How to Install PostgreSQL on Debian 12
Introduction How to Install PostgreSQL on Debian 12 is a fundamental operation for any administrator maintaining a Debian 12 Bookworm server. Debian 12 Bookworm ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 12. This tutorial […]
Oracle Linux 9 — Image Builder security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2023-2204)
🟡 Medium ⏱ 10–30 min Last verified: 3 November 2023 Affected versions: Oracle Linux 9 📖 ~4 min read • Source: ELSA advisory ELSA-2023-2204 Related CVEs: CVE-2022-41715 CVE-2022-27664 CVE-2022-2879 CVE-2022-2880 CVE-2022-41717 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative […]
How to Tune System Performance with tuned on CentOS Stream 9
Introduction This tutorial demonstrates how to Tune System Performance with tuned on CentOS Stream 9 on CentOS Stream 9. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered CentOS Stream 9 system with […]
![NetBSD 9.4 — bind-8.4.[4-5] — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4](https://www.progressiverobot.com/wp-content/uploads/2026/05/netbsd-9-4-bind-8-4-4-5-vulnerability-patch-remediation.jpg "NetBSD 9.4 — bind — vulnerability — patch and remediation guide 6")
NetBSD 9.4 — bind — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read • Source: pkgsrc audit-packages entry Upstream summary: pkgsrc audit-packages flagged bind{,nb*} for vulnerability class 'denial-of-service'. Reference: http://www.kb.cert.org/vuls/id/327633 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary […]
IBM AIX 7.3 — CVE-2023-27867 — vulnerability — patch and remediation guide
🟡 Medium ⏱ 15–45 min Last verified: 3 November 2023 Affected versions: IBM AIX 7.3 📖 ~4 min read • Source: NVD CVE-2023-27867, IBM Support Bulletin CVE: CVE-2023-27867 NVD summary: IBM Db2 JDBC Driver for Db2 for Linux, UNIX and Windows 10.5, 11.1, and 11.5 could allow a remote authenticated attacker to execute arbitrary […]
NetBSD 9.4 — wget-1.9 — vulnerability — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read • Source: pkgsrc audit-packages entry Upstream summary: pkgsrc audit-packages flagged wget-1.9{,nb*} for vulnerability class 'symlink-attack'. Reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-2014 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary […]
Debian 12: Docker service fails after kernel update
🟠 High ⏱ 5–30 min Last verified: 3 November 2023 Affected versions: Debian 12 📖 ~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 — git-lite — multiple vulnerabilities (10 CVEs) — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 3 November 2023 Affected versions: FreeBSD 13 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: git — Multiple vulnerabilities Related CVEs: CVE-2015-7545 CVE-2016-2324 CVE-2018-11233 CVE-2018-11235 CVE-2020-11008 CVE-2020-5260 CVE-2022-39253 CVE-2022-39260 +2 more Upstream summary: git developers reports: This update includes 2 security fixes: CVE-2023-25652: By feeding […]