Troubleshooting

How to Configure SSH Hardening on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure SSH Hardening on Debian 10

Introduction This guide explains how to Configure SSH Hardening 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 standard […]

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Arch Linux — thrift — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — thrift — 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-202102-43 Related CVEs: CVE-2020-13949 Upstream summary: Type: denial of service. Status: Fixed. Affected: 0.13.0-1. Fixed in: 0.14.0-1. Group: AVG-1568. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Ubuntu 16.04 — xdg-utils — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — xdg-utils — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 12 May 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4649-2 Related CVEs: https://launchpad.net/bugs/1909941 CVE-2020-27748 CVE-2017-18266 Upstream summary: USN-4649-1 fixed vulnerabilities in xdg-utils. That update caused a regression by removing the –attach functionality in thunderbird and others applications. This update […]

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openSUSE Tumbleweed — qutebrowser — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — qutebrowser — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2018:2120-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-10895 CVE-2018-1000559 CVE-2020-11054 Upstream summary: qutebrowser before version 1.4.1 is vulnerable to a cross-site request forgery flaw that allows websites to access 'qute://*' URLs. A […]

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Common Problems 121010

Debian 10 – Network Interface Rename Breaks Connectivity – Persistent Naming Fix

🟠 High   ⏱ 5–30 min  Last verified: 11 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 119013

Ubuntu 14.04 LTS system clock drift and NTP sync failure

🟡 Medium   ⏱ 5–30 min  Last verified: 11 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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openSUSE Tumbleweed — monit — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — monit — 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 (see also SUSE bugzilla) Related CVEs: CVE-2016-7067 Upstream summary: Monit before version 5.20.0 is vulnerable to a cross site request forgery attack. Successful exploitation will enable an attacker to disable/enable all […]

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How to Install Composer on SLES 12 — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Install Composer on SLES 12

Introduction This tutorial covers How to Install Composer on SLES 12 on SLES 12. SLES 12 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 12 system is up to date: zypper refresh && […]

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FreeBSD 12 — monitorix — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — monitorix — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 11 May 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: monitorix — serious bug in the built-in HTTP server Upstream summary: Monitorix Project reports: A serious bug in the built-in HTTP server. It was discovered that the handle_request() routine did […]

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CHAT