February 2020 - Page 48 of 64

Common Problems 115444

Service Starts Then Immediately Exits on RHEL 7

🟡 Medium   ⏱ 5–30 min  Last verified: 19 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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How to Configure Docker Overlay Networking on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure Docker Overlay Networking on Debian 10

Introduction Deploying configure docker overlay networking on debian 10 on a Debian 10 Buster machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites You will […]

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Common Problems 114483

RHEL 9 podman container cannot reach external network

🟡 Medium   ⏱ 5–30 min  Last verified: 19 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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FreeBSD 12 — gtar — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — gtar — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: gtar — buffer overflow in rmt client Related CVEs: CVE-2006-0300 CVE-2006-6097 CVE-2007-4131 CVE-2007-4476 CVE-2010-0624 Upstream summary: Jakob Lell reports: The rmt client implementation of GNU Tar/Cpio contains a heap-based buffer […]

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Common Problems 113065

Windows Server 2016 – NTFS ACL inheritance disabled causing access denied – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 01 April 2027 Affected versions: Windows Server 2016 📖 ~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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Ubuntu 14.04 — libjpeg6b — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — libjpeg6b — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5497-1 Related CVEs: CVE-2018-11212 CVE-2018-11213 CVE-2018-11214 CVE-2018-11813 CVE-2020-14152 Upstream summary: It was discovered that Libjpeg6b was not properly performing bounds checks when compressing PPM and Targa image files. An attacker […]

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How to Create and Manage Users with useradd on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Create and Manage Users with useradd on RHEL 10

Introduction Setting up create and manage users with useradd on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Create and Manage Users with useradd on RHEL 10, with all the commands you need, the SELinux and firewalld considerations to keep in […]

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How To Install Nginx on Debian 8 — step-by-step Linux tutorial on Progressive Robot

How To Install Nginx on Debian 8

Nginx is an popular HTTP-server alternative to Apache2. It can be used as a reverse proxy, mail server, or web server. According to the Netcraft survey as of July 2015, Nginx currently holds 14% of the market and has had an increasing trend since 2007.

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

Oracle Linux 8 — GraalVM — vulnerability — patch and remediation guide (ELSA-2023-12313)

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-12313 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 […]

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