Package Management

How to Back Up PostgreSQL with pg_dump on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Back Up PostgreSQL with pg_dump on FreeBSD 13

Introduction This guide explains how to Back Up PostgreSQL with pg_dump on FreeBSD 13 on FreeBSD 13. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for […]

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FreeBSD 13 — squirrelmail-multilogin-plugin — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — squirrelmail-multilogin-plugin — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 22 July 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: SquirrelMail — Plug-ins compromise Upstream summary: Problem Description: The SquirrelMail Web Server has been compromised, and three plugins are affected. The port of squirrelmail-sasql-plugin is safe (right MD5), and change_pass […]

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Ubuntu 20.04 — re2c — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — re2c — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 22 July 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4338-2 Related CVEs: CVE-2020-11958 Upstream summary: USN-4338-1 fixed vulnerabilities in re2c. This update provides the corresponding update for Ubuntu 20.04 LTS. Original advisory details: Agostino Sarubbo discovered that re2c incorrectly […]

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

Oracle Linux 8 — firefox — vulnerability — patch and remediation guide (ELSA-2021-3755)

🟠 High   ⏱ 15–60 min  Last verified: 22 July 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-3755 Related CVEs: CVE-2021-38498 CVE-2021-32810 CVE-2021-38497 CVE-2021-38496 CVE-2021-38501 CVE-2021-38500 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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How to Configure Rate Limiting in Nginx on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure Rate Limiting in Nginx on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up configure rate limiting in nginx 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 […]

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FreeBSD 13 — de-netscape — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — de-netscape — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 22 July 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: firefox & mozilla — multiple vulnerabilities Related CVEs: CVE-2004-0597 CVE-2004-0598 CVE-2004-0599 CVE-2004-0762 CVE-2004-0765 CVE-2004-0904 CVE-2004-0905 CVE-2004-0908  +12 more Upstream summary: A Mozilla Foundation Security Advisory reports of multiple issues: Heap […]

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Debian 10 — php7.3 — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — php7.3 — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 22 July 2021 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-11036 CVE-2019-11043 CVE-2019-11045 CVE-2019-11048 CVE-2020-7068 CVE-2021-21703 CVE-2021-21704 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution […]

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How to Install phpMyAdmin on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install phpMyAdmin on RHEL 7

How to Install phpMyAdmin on RHEL 7 phpMyAdmin is a free, open-source web-based tool for administering MySQL and MariaDB databases through a browser interface. Rather than relying on the command line for every operation, phpMyAdmin lets you browse tables, run queries, manage users, import and export data, and monitor server status with a point-and-click UI. […]

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Common Problems 125003

Oracle Linux 8 – Common Problem 004 – Diagnosis and Fix

🟠 High   ⏱ 5–30 min  Last verified: 21 July 2021 Affected versions: Oracle Linux 8 📖 ~3 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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AlmaLinux 8 — lftp — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — lftp — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2020:4665 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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