February 2021 - Page 52 of 62

Common Problems 114115

RHEL 10 – nftables direct rule conflicts with firewalld runtime state

🟠 High   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: RHEL 10 RHEL 10.0 RHEL 10.1 📖 ~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 & […]

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Debian 10 — blueman — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — blueman — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-15238 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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How to Set Up Graylog on SLES 12 — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Set Up Graylog on SLES 12

Introduction This tutorial covers How to Set Up Graylog 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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How to Use IBM Guardium Database Security on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Use IBM Guardium Database Security on IBM AIX 7.2

Introduction IBM AIX 7.2 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use ibm guardium database security on ibm aix 7.2 […]

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Debian 10 — qtbase-opensource-src — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — qtbase-opensource-src — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-18281 CVE-2020-0569 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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Java 14 Features — step-by-step Programming tutorial on Progressive Robot

Java 14 Features

URL: https://www.progressiverobot.com/java-14-features/ Keeping up with the six-month cycle tradition, after the release of Java 13 on September 17, 2019, Java 14, another non-LTS version is scheduled to release on March 17, 2020. Java 14 Features Here's the list of Java 14 features: Switch Expressions (Standard) – JEP 361 Pattern Matching for [instanceof](/community/tutorials/instanceof-java) (Preview) – JEP […]

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How To Use Dates and Times in Go — step-by-step Programming tutorial on Progressive Robot

How To Use Dates and Times in Go

Date and time values show up everywhere in modern software. Learn to use Go’s time package to get the current local time of your computer and customize the format. You can also translate the date and time values between two time zones, as well as add or subtract time values to determine the interval between two times.

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Debian 10 — qemu — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — qemu — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-12068 CVE-2019-13164 CVE-2019-15890 CVE-2020-10756 CVE-2020-12829 CVE-2020-8608 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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