January 2020 - Page 51 of 69

Debian 9 — zeromq3 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — zeromq3 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-13132 CVE-2019-6250 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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Installation von Anaconda auf Ubuntu 18.04 [Quickstart] — step-by-step Linux tutorial on Progressive Robot

Installation von Anaconda auf Ubuntu 18.04 [Quickstart]

Anaconda,ein Open-Source-Paketmanager und Umgebungsmanager, wurde für Data-Science- und Machine-Learning-Workflows sowie die Verteilung der Programmiersprachen Python und R entwickelt. Dieses Tutorial beschreibt die Installation von Anaconda auf einem Ubuntu 18.04 Server….

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The exit() function in C++ — step-by-step Programming tutorial on Progressive Robot

The exit() function in C++

Introduction Today we'll learn about exit() in C++. We know we can break out of loops using the built-in break function in C++. Similarly, we can also break out of a whole C++ program using the exit() function. Think of a situation where you are to come to a conclusion in your program. You get […]

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How to Configure Huge Pages for Database Performance on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure Huge Pages for Database Performance on RHEL 7

How to Configure Huge Pages for Database Performance on RHEL 7 Database engines — particularly Oracle, PostgreSQL, and MySQL/InnoDB — allocate and manage large memory pools for their buffer caches and shared memory segments. By default, the Linux kernel manages memory in 4 KB pages, which means that a 32 GB database buffer pool requires […]

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Common Problems 115973

Fix Clock Drift and NTP Sync Problems on Ubuntu 26.04 LTS

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: 26.04 📖 ~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 […]

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Common Problems 115090

Custom unit changes ignored because daemon-reload not run

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2026 📖 ~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 — msmtp — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — msmtp — 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-2019-8337 Upstream summary: In msmtp 1.8.2 and mpop 1.4.3, when tls_trust_file has its default configuration, certificate-verification results are not properly checked. Table of contents Symptom […]

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Common Problems 114932

RHEL 8 SELinux Denies Apache Access to Custom Content Directory

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: 8.6 8.7 8.8 8.9 8.10 📖 ~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 […]

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