Linux

How to Install ArgoCD GitOps Tool on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install ArgoCD GitOps Tool on Debian 10

Introduction Debian 10 Buster is built around the ethos of stability and free software. Setting up install argocd gitops tool on debian 10 on Buster leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Buster freeze. Follow each step carefully and […]

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Oracle Linux 8 — python27:2.7 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — python27:2.7 — vulnerability — patch and remediation guide (ELSA-2022-7593)

🟡 Medium   ⏱ 10–30 min  Last verified: 6 May 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-7593 Related CVEs: CVE-2015-20107 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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Arch Linux — libtirpc — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — libtirpc — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201705-5 Related CVEs: CVE-2017-8779 Upstream summary: Type: denial of service. Status: Fixed. Affected: 1.0.1-2. Fixed in: 1.0.1-3. Group: AVG-262. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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How To Install and Configure Postfix on Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

How To Install and Configure Postfix on Ubuntu 20.04

Postfix is a popular open-source Mail Transfer Agent (MTA) that can be used to route and deliver email on a Linux system. It is estimated that around 25% of public mail servers on the internet run Postfix. In this guide, you’ll learn how to install and configure Postfix on an Ubuntu 20.04 server.

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SLES 12 — python-Flask — vulnerability — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — python-Flask — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 6 May 2020 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2020:1901-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-1010083 Upstream summary: The Pallets Project Flask before 1.0 is affected by: unexpected memory usage. The impact is: denial of service. The attack vector is: […]

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Common Problems 121070

Debian 10 – ext4 Filesystem Remounts Read-Only – Root Cause and Repair

🔴 Critical   ⏱ 5–30 min  Last verified: 5 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 & […]

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Common Problems 117916

Ubuntu 18.04 LTS – dpkg interrupted state blocks package operations – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 5 May 2020 Affected versions: Ubuntu 18.04 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 […]

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openSUSE Tumbleweed — mosh — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — mosh — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory Related CVEs: CVE-2012-2385 Upstream summary: The terminal dispatcher in mosh before 1.2.1 allows remote authenticated users to cause a denial of service (long loop and CPU consumption) via an escape sequence […]

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Common Problems 117420

Ubuntu 20.04 LTS UFW Rules Not Persisting as Expected

🟡 Medium   ⏱ 5–30 min  Last verified: 5 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 […]

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How to Configure PostgreSQL Remote Access on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure PostgreSQL Remote Access on Debian 10

Introduction This guide explains how to Configure PostgreSQL Remote Access on Debian 10 on Debian 10 Buster. Debian Buster uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 10 install with the […]

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